Low-carbon high polymer material production system

Abstract

The utility model provides a low-carbon high polymer material production system. The low-carbon high polymer material production system comprises an SFC device (1), a styrene device (2), a sulfuric acid / waste acid recovery device (3), an acrylonitrile device (4), an ABS device (5), an adiponitrile device (6), a PTPE device (7), a gas separation device (8), a PDO device (9) and a PTT device (10). The low-carbon high polymer material production system disclosed by the utility model has the following technical effects that the production process of the low-carbon high polymer material is greatly shortened, the steps of producing olefin and downstream products are reduced, the investment is reduced, and the production cost is reduced; the production system is high in raw material adaptability, heavy and light raw oil can be selected for direct feeding, a pre-pretreatment process is not needed, and energy consumption and carbon emission are reduced.

Description

Technical Field

[0001] The utility model relates to a low-carbon high polymer material production system, belonging to the technical field of petrochemical industry. Background Art

[0002] Currently, there is still a significant gap in the supply of products such as engineering plastics, high-end polyolefin resins, specialty synthetic rubber, and electronic chemicals, requiring reliance on imports. On the other hand, the manufacturing upgrade strategy has created a huge market demand, mainly concentrated in chemicals for high-end equipment; chemicals for life sciences such as medicine, biology, and agriculture; chemicals for energy conservation and environmental protection such as building energy conservation, air pollution control, and sewage treatment; as well as electronic chemicals and chemicals for new energy.

[0003] However, in the field of petrochemicals, the production of low-carbon polymer materials is still lacking.

[0004] Selective fluid cracking (SFC) is an advanced refining process designed to convert heavy oil feedstocks directly into valuable light products, such as light olefins and aromatics, without extensive pretreatment. This is different from traditional fluid catalytic cracking (FCC) and deep catalytic cracking (DCC) processes, which usually require pretreatment of the feedstock to remove impurities and improve the quality of the final product. Key features and benefits:

[0005] 1. Direct Heavy Oil Processing: SFC can process heavy oil feedstock directly without expensive and time-consuming pretreatment steps. This makes the process more efficient and cost-effective compared to FCC and DCC.

[0006] 2. High conversion rate: SFC achieves high conversion rate of heavy oil into lighter and more valuable products. This is achieved by using advanced catalysts and optimized operating conditions that can enhance the cracking reaction.

[0007] 3. Enhanced product selectivity: The process is designed to selectively produce high yields of desired products, such as light olefins and aromatics. This is achieved by controlling reaction conditions and catalyst composition to promote the formation of specific products.

[0008] 4. Reduced emissions: SFC is designed to minimize the production of undesirable by-products, such as coke and sulfur compounds. This reduces emissions and environmental impact compared to traditional cracking processes.

[0009] Although the selective fluid pyrolysis process has many advantages as mentioned above, there is currently a lack of a low-carbon polymer material production system that can effectively implement the above process in the art. Utility Model Content

[0010] In order to solve the above technical problems, the purpose of the present utility model is to provide a low-carbon polymer material production system, which can realize the combination of multiple productions.

[0011] To achieve the above-mentioned object, the utility model provides a low-carbon polymer material production system, wherein the low-carbon polymer material production system includes: an SFC device, a styrene device, a sulfuric acid / waste acid recovery device, an acrylonitrile device, an ABS device, an adiponitrile device, a PTPE device, a gas separation device, a PDO device, and a PTT device;

[0012] in:

[0013] The SFC device is provided with a fuel oil inlet, a dry gas outlet, a first acid gas outlet, a liquefied gas outlet, a superimposed cycle oil inlet, a light aromatic hydrocarbon outlet, a medium cycle oil inlet, a heavy aromatic hydrocarbon outlet, an energy storage coke oil inlet, and an energy storage coke raw material outlet;

[0014] The styrene device is provided with a first hydrogen inlet, a first dry gas inlet, a first styrene outlet, a second styrene outlet, and a benzene inlet;

[0015] The sulfuric acid / waste acid recovery device is provided with an acid gas inlet and a concentrated sulfuric acid outlet;

[0016] The acrylonitrile device is provided with a first propylene inlet, a concentrated sulfuric acid inlet, an acrylonitrile outlet, and an HCN outlet;

[0017] The ABS device is provided with a first butadiene inlet, an acrylonitrile inlet, a styrene inlet, and an ABS resin outlet;

[0018] The adiponitrile device is provided with a second butadiene inlet, an HCN inlet, and an adiponitrile outlet;

[0019] The PTPE device is provided with a second propylene inlet, a second hydrogen inlet, an ethylene inlet, a polypropylene product outlet, and a first butene-1 inlet;

[0020] The gas separation device is provided with a liquefied gas inlet, a propylene outlet, a first propane outlet, and a mixed C4 outlet;

[0021] The PDO device is provided with a third hydrogen inlet, a third propylene inlet, and a 1,3-propylene glycol outlet;

[0022] The PTT device is provided with a 1,3-propylene glycol inlet, a PTA inlet, and a PTT outlet;

[0023] The dry gas outlet of the SFC device is connected to the first dry gas inlet of the styrene device;

[0024] The second styrene outlet of the styrene device is connected to the styrene inlet of the ABS device;

[0025] The first acid gas outlet of the SFC device is connected to the acid gas inlet of the sulfuric acid / waste acid recovery device, and the concentrated sulfuric acid outlet of the sulfuric acid / waste acid recovery device is connected to the concentrated sulfuric acid inlet of the acrylonitrile device;

[0026] The liquefied gas outlet of the SFC device is connected to the liquefied gas inlet of the gas separation device, and the propylene outlet of the gas separation device is provided with four branches, the first branch is connected to the first propylene inlet of the acrylonitrile device, the second branch is connected to the second propylene inlet of the PTPE device, the third branch is connected to the third propylene inlet of the PDO device, and the fourth branch is a propylene product outlet;

[0027] The acrylonitrile outlet of the acrylonitrile device is connected to the acrylonitrile inlet of the ABS device, and the HCN outlet of the acrylonitrile device is connected to the HCN inlet of the adiponitrile device;

[0028] The third hydrogen inlet of the PDO device is used to input hydrogen, and the 1,3-propylene glycol outlet of the PDO device is connected to the 1,3-propylene glycol inlet of the PTT device.

[0029] According to a specific embodiment of the present invention, preferably, the low-carbon polymer material production system further comprises: a first refining device, a superposition device, a second refining device, an aromatics separation device, an energy storage coke combined device, an aromatics lightening device, a dry gas aromatization device, and a light naphtha aromatization device;

[0030] The first refining device is provided with a pyrolysis gasoline inlet, a light aromatics inlet, a fourth hydrogen inlet, a second acid gas outlet, a light naphtha outlet, a superimposed pentane oil inlet, a heavy naphtha outlet, and a crude naphtha inlet;

[0031] The stacking device is provided with a stacking cycle oil outlet, a heavy C4 inlet, an n-butane outlet, a normal n-butane inlet, a stacking pentane oil outlet, and a first light naphtha inlet;

[0032] The aromatic hydrocarbon separation device is provided with a heavy naphtha inlet, a benzene / toluene / mixed xylene outlet, an industrial hexane outlet, and a mixed xylene / high boiling point aromatic hydrocarbon solvent outlet;

[0033] The energy storage coke combined device is provided with a sixth hydrogen inlet, an energy storage coke raw material inlet, an energy storage coke wax oil outlet, an aromatics outlet, and an energy storage coke outlet;

[0034] The aromatic hydrocarbon lightening device is provided with a mixed xylene / high boiling point aromatic hydrocarbon solvent inlet and a triphenyl mixture outlet;

[0035] The dry gas aromatization device is provided with a second dry gas inlet, an ethane outlet, and a first mixed aromatic hydrocarbon outlet;

[0036] The light naphtha aromatization unit is provided with a second light naphtha inlet, a second mixed aromatics outlet, a third propane outlet, and a butane outlet;

[0037] The stacking circulating oil outlet of the stacking device is connected to the stacking circulating oil inlet of the SFC device;

[0038] The heavy aromatics inlet of the second refining unit is connected to the heavy aromatics outlet of the SFC unit, the medium cycle oil outlet of the second refining unit is connected to the medium cycle oil inlet of the SFC unit, and the aromatics inlet of the second refining unit is connected to the aromatics outlet of the energy storage coke combined unit;

[0039] The mixed xylene / high boiling point aromatic hydrocarbon solvent outlet of the aromatic hydrocarbon separation device is connected to the mixed xylene / high boiling point aromatic hydrocarbon solvent inlet of the aromatic hydrocarbon lightening device;

[0040] The energy storage coke raw material inlet of the energy storage coke combined device is connected to the energy storage coke raw material outlet of the SFC device, and the energy storage tar wax oil outlet of the energy storage coke combined device is connected to the energy storage tar wax oil inlet of the SFC device;

[0041] The second dry gas inlet of the dry gas aromatization device is connected to the dry gas outlet of the SFC device, and the first mixed aromatics outlet of the dry gas aromatization device is connected to the first mixed aromatics inlet of the aromatics separation device;

[0042] The second light naphtha inlet of the light naphtha aromatization unit is connected to the light naphtha outlet of the first refining unit, and the second mixed aromatics outlet of the light naphtha aromatization unit is connected to the second mixed aromatics inlet of the aromatics separation unit.

[0043] According to a specific embodiment of the present utility model, preferably, the light aromatics outlet of the SFC unit is connected to the light aromatics inlet of the first refining unit, the second acid gas outlet of the first refining unit is connected to the acid gas inlet of the sulfuric acid / waste acid recovery unit, the light naphtha outlet of the first refining unit is connected to the first light naphtha inlet of the superposition unit, the superimposed pentane oil inlet of the first refining unit is connected to the superimposed pentane oil outlet of the superimposed unit, the heavy naphtha outlet of the first refining unit is connected to the heavy naphtha inlet of the aromatics separation unit, and the crude naphtha inlet of the first refining unit is connected to the crude naphtha outlet of the second refining unit.

[0044] According to a specific embodiment of the present invention, preferably, the low-carbon polymer material production system further comprises: a butene-1 / isobutylene combined unit, a POE unit, a C4 normal unit, an HDA unit, a PPC unit, and a hydrogen production unit;

[0045] The butene-1 / isobutylene combined unit is provided with a heavy C4 outlet, a mixed C4 inlet, a first butene-1 outlet, a second butene-1 outlet, a high-purity isobutylene outlet and an isobutane outlet;

[0046] The POE device is provided with a 1-hexene inlet, a second butene-1 inlet, and a POE outlet;

[0047] The C4 normal-propane device is provided with a normal-butane outlet, an isobutane inlet, a second propane outlet, and a first fuel gas outlet;

[0048] The second refining device is provided with a fifth hydrogen inlet, a heavy aromatics inlet, a medium cycle oil outlet, a crude naphtha outlet, and an aromatics inlet;

[0049] The HDA device is provided with a benzene / toluene / mixed xylene inlet, a sixth hydrogen inlet, a benzene outlet, a second fuel gas outlet, and a hydrogen-rich tail gas outlet;

[0050] The PPC device is provided with a carbon dioxide inlet, a propylene oxide inlet, a polypropylene carbonate outlet, and a propylene carbonate outlet;

[0051] The hydrogen production device is provided with a hydrogen-rich tail gas inlet, a first carbon dioxide outlet, a second carbon dioxide outlet, and a hydrogen outlet;

[0052] The second butene-1 outlet of the butene-1 / isobutylene combined unit is connected to the second butene-1 inlet of the POE unit, and the isobutane outlet of the butene-1 / isobutylene combined unit is connected to the isobutane inlet of the C4 normal unit;

[0053] The first fuel gas outlet of the C4 positive structure device is a fuel gas product outlet;

[0054] The hydrogen-rich tail gas outlet of the HDA device is connected to the hydrogen-rich tail gas inlet of the hydrogen production device;

[0055] The carbon dioxide inlet of the PPC device is connected to the first carbon dioxide outlet of the hydrogen production device.

[0056] According to a specific embodiment of the present invention, preferably, the first butene-1 inlet of the PTPE unit is connected to the first butene-1 outlet of the butene-1 / isobutylene combined unit.

[0057] According to a specific embodiment of the present invention, preferably, the benzene inlet of the styrene unit is connected to the benzene outlet of the HDA unit;

[0058] The benzene outlet of the HDA device is connected to a benzene product branch line for outputting the benzene product;

[0059] The triphenyl mixture outlet of the aromatics lightening unit is connected to the benzene / toluene / mixed xylene inlet of the HDA unit.

[0060] According to a specific embodiment of the present invention, preferably, the first butene-1 inlet of the PTPE unit is connected to the first butene-1 outlet of the butene-1 / isobutylene combined unit; the mixed C4 outlet of the gas separation unit is connected to the mixed C4 inlet of the butene-1 / isobutylene combined unit.

[0061] According to a specific embodiment of the present invention, preferably, the benzene / toluene / mixed xylene outlet of the aromatics separation unit is connected to the benzene / toluene / mixed xylene inlet of the HDA unit.

[0062] According to a specific embodiment of the present invention, preferably, the heavy C4 inlet of the stacking device is connected to the heavy C4 outlet of the butene-1 / isobutylene combined device.

[0063] According to a specific embodiment of the present invention, preferably, the normal-n-butane inlet of the stacking device is connected to the normal-n-butane outlet of the C4 normal-butane device.

[0064] According to the specific implementation scheme of the present utility model, in the low-carbon polymer material production system of the present utility model:

[0065] The SFC unit is a selective fluid cracking unit, which is used to directly crack heavy fuel oil into light olefins and aromatics. The fuel oil inlet of the SFC unit is used to input fuel oil, the dry gas outlet is used to provide dry gas to the styrene unit, the first acid gas outlet is used to provide acid gas to the sulfuric acid / waste acid recovery (SAR) unit, the liquefied gas outlet is used to provide liquefied gas to the gas separation unit, the stacked cycle oil inlet is used to input stacked cycle oil, the light aromatics are used to output light aromatics (for example, to provide light aromatics to the first refining unit), the medium cycle oil inlet is used to input medium cycle oil, the heavy aromatics outlet is used to output heavy aromatics (for example, to provide heavy aromatics to the second refining unit), the energy storage tar wax oil is used to input energy storage tar wax oil, and the energy storage coke raw material is used to input energy storage coke raw material.

[0066] The styrene unit is used to produce styrene using ethylene in the ethylene-rich dry gas from the SFC unit, benzene (e.g., benzene from the HDA unit), and hydrogen as raw materials. The styrene unit has a first hydrogen inlet for inputting hydrogen, a first dry gas inlet for inputting dry gas (dry gas from the SFC unit), a first styrene outlet for outputting styrene product, a second styrene outlet for providing styrene to the ABS unit, and a benzene inlet for inputting benzene (e.g., benzene from the HDA unit).

[0067] The SAR (Spent Acid Recovery) unit is used to produce concentrated sulfuric acid from the acid gas from the SFC unit to supply to the acrylonitrile unit. The acid gas inlet of the SAR unit is used to input acid gas, and the concentrated sulfuric acid outlet is used to supply concentrated sulfuric acid to the acrylonitrile unit.

[0068] The acrylonitrile unit is used to produce acrylonitrile using concentrated sulfuric acid and propylene as raw materials to supply to the ABS unit. Hydrocyanic acid (HCN) is also produced as a by-product and supplied to the adiponitrile unit. The first propylene inlet of the acrylonitrile unit is used to input propylene from the gas separation unit, the concentrated sulfuric acid inlet is used to input concentrated sulfuric acid from the sulfuric acid / waste acid recovery (SAR) unit, the acrylonitrile outlet is used to supply acrylonitrile to the ABS unit, and the hydrocyanic acid (HCN) outlet is used to supply HCN to the adiponitrile unit.

[0069] The ABS unit (acrylonitrile-butadiene-styrene copolymer unit) is used to produce ABS resin using acrylonitrile, butadiene, and styrene as raw materials. The first butadiene inlet of the ABS unit is used to input butadiene, the acrylonitrile inlet is used to input acrylonitrile from the acrylonitrile unit, the styrene inlet is used to input styrene from the styrene unit, and the ABS resin outlet is used to output ABS resin products.

[0070] The adiponitrile unit is used to produce adiponitrile using HCN and butadiene as raw materials; the second butadiene inlet of the adiponitrile unit is used to input butadiene, the HCN inlet is used to input HCN from the acrylonitrile unit, and the adiponitrile outlet is used to output the adiponitrile product;

[0071] The PTPE unit (polypropylene thermoplastic elastomer unit) is used to produce impact polypropylene, homopolypropylene, and random polypropylene products using ethylene, propylene, butene-1, and hydrogen as raw materials. The PTPE unit's second propylene inlet is used to input propylene from the gas separation unit, the second hydrogen inlet is used to input hydrogen, the ethylene inlet is used to input ethylene, the polypropylene product outlet is used to output polypropylene products, and the first butene-1 inlet is used to input butene-1 (e.g., butene-1 from a butene-1 / isobutylene combined unit).

[0072] The gas separation unit is used to separate the liquefied gas from the SFC unit to obtain propylene, propane, and mixed C4 products. The liquefied gas inlet of the gas separation unit is used to input liquefied gas. The four branches of the propylene outlet are used to supply propylene to the acrylonitrile unit, PTPE unit, and PDO unit, and output propylene products. The first propane outlet is used to output propane products. The mixed C4 outlet is used to provide mixed C4 products (for example, to a butene-1 / isobutylene combination unit).

[0073] The PDO unit (1,3-propylene glycol unit) is used to produce 1,3-propylene glycol using propylene and hydrogen as raw materials and supply the 1,3-propylene glycol to the PTT unit. The third hydrogen inlet of the PDO unit is used to input hydrogen, the third propylene inlet is used to input propylene, and the 1,3-propylene glycol outlet is used to supply 1,3-propylene glycol to the PTT unit.

[0074] The PTT unit (polytrimethylene terephthalate unit) is used to produce PTT (a polymer of 1,3-propylene glycol and terephthalic acid) using PTA (purified terephthalic acid) and 1,3-propylene glycol as raw materials. The 1,3-propylene glycol inlet of the PTT unit is used to input 1,3-propylene glycol, the PTA inlet is used to input PTA, and the PTT outlet is used to output the PTT product.

[0075] The first refining unit is used for hydrotreating light aromatics from the SFC unit and external pyrolysis gasoline; the pyrolysis gasoline inlet of the first refining unit is used to input pyrolysis gasoline, the light aromatics inlet is used to input light aromatics from the SFC unit, the fourth hydrogen inlet is used to input hydrogen, the second acid gas outlet is used to provide acid gas to the sulfuric acid / waste acid recovery unit, the light naphtha outlet is used to provide light naphtha to the superposition unit, the superposition pentane oil inlet is used to input superposition pentane oil, the heavy naphtha outlet is used to provide heavy naphtha to the aromatics separation unit, and the crude naphtha inlet is used to input crude naphtha;

[0076] The stacking unit is used to copolymerize low-carbon chain molecules into high-carbon chain molecules and recycle them back to the SFC feed; the stacking cycle oil outlet of the stacking unit is used to provide stacking cycle oil to the SFC unit, the heavy C4 inlet is used to input heavy C4, the n-butane outlet is used to output n-butane product, the normal-n-butane inlet is used to provide normal-n-butane to the stacking unit, the stacking pentane oil outlet is used to provide stacking pentane oil to the first refining unit, and the first light naphtha inlet is used to input light naphtha;

[0077] The butene-1 / isobutylene combined unit is used to separate high-purity butene-1 and isobutylene products; the heavy C4 outlet of the butene-1 / isobutylene combined unit is used to provide heavy C4 to the superposition unit, the mixed C4 inlet is used to input mixed C4 from the gas separation unit, the second butene-1 outlet is used to provide butene-1 to the POE unit, the high-purity isobutylene outlet is used to output high-purity isobutylene products, and the isobutane outlet 1306 is used to provide isobutane to the C4 normal unit;

[0078] The POE unit (polyolefin elastomer unit) is used to produce POE using 1-hexene and butene-1 as raw materials. The 1-hexene inlet of the POE unit is used to input 1-hexene, the second butene-1 inlet is used to input butene-1 from the butene-1 / isobutylene combined unit, and the POE outlet is used to output the POE product.

[0079] The C4 normal-propane unit is used for normalization of isomerized C4; the normal-butane outlet of the C4 normal-propane unit is used to output normal-butane, the isobutane inlet is used to input isobutane, the second propane outlet is used to output propane products, and the first fuel gas outlet is the fuel gas product outlet for outputting fuel gas products, which can directly enter the fuel gas pipeline network;

[0080] The second refining unit is used for hydrorefining heavy aromatics; the fifth hydrogen inlet of the second refining unit is used to input hydrogen, the heavy aromatics inlet is used to input heavy aromatics, the medium cycle oil outlet is used to provide medium cycle oil to the SFC unit, the crude naphtha outlet is used to provide crude naphtha to the first refining unit, and the aromatics inlet of the second refining unit is used to input aromatics;

[0081] The aromatics separation unit is used to separate light aromatics from heavy aromatics; the heavy naphtha inlet of the aromatics separation unit is used to input heavy naphtha, the first mixed aromatics inlet is used to input mixed aromatics from the dry gas aromatization unit, and the second mixed aromatics inlet is used to input mixed aromatics from the light naphtha aromatization unit;

[0082] The benzene / toluene / mixed xylene outlet is used to supply benzene / toluene / mixed xylene to the HDA unit, the industrial hexane outlet is used to export industrial hexane products, and the mixed xylene / high-boiling-point aromatic solvent outlet is used to supply mixed xylene / high-boiling-point aromatic solvent to the aromatics lightening unit;

[0083] The HDA unit (including an aromatics extraction unit and a hydrodealkylation unit) is used to separate pure benzene and toluene / mixed xylenes to produce benzene by dealkylation, respectively. The benzene / toluene / mixed xylenes inlet of the HDA unit is used to input a mixture of benzene / toluene / mixed xylenes. The sixth hydrogen inlet is used to input hydrogen. The benzene outlet is used to supply benzene to the styrene unit. The second fuel gas outlet is used to output fuel gas products. The hydrogen-rich tail gas outlet is used to supply hydrogen-rich tail gas to the hydrogen production unit. Furthermore, the benzene outlet is connected to a benzene product branch line for outputting benzene products.

[0084] The PPC unit (polypropylene carbonate unit) is used to produce polypropylene carbonate using propylene oxide and carbon dioxide as raw materials; the carbon dioxide inlet of the PPC unit is used to input carbon dioxide, the propylene oxide inlet is used to input propylene oxide, the polypropylene carbonate outlet is used to output the polypropylene carbonate product, and the propylene carbonate outlet is used to output the propylene carbonate product;

[0085] The hydrogen production unit is used to produce hydrogen from tail gas. The hydrogen-rich tail gas inlet of the hydrogen production unit is used to input the hydrogen-rich tail gas from the HDA unit. The first carbon dioxide outlet is used to output carbon dioxide and provide it to the PPC unit. The second carbon dioxide outlet is used to output carbon dioxide product. The hydrogen outlet is used to output hydrogen product. It can be connected to various hydrogen units. The hydrogen production unit is also equipped with CO2 recovery equipment to recover the generated carbon dioxide.

[0086] The energy storage coke combined unit is used to produce energy storage coke from oil slurry; the sixth hydrogen inlet of the energy storage coke combined unit is used to input hydrogen, the energy storage coke raw material inlet is used to provide energy storage coke raw material, the energy storage coke wax oil outlet is used to provide energy storage coke wax oil to the SFC unit, the aromatics outlet is used to output aromatics products and provide them to the second refining unit, and the energy storage coke outlet is used to output energy storage coke products;

[0087] The aromatics lightening unit is used to lighten heavy aromatics to produce light aromatics (triphenylene); the triphenylene mixture outlet of the aromatics lightening unit is used to supply the triphenylene mixture to the HDA unit; the mixed xylene / high-boiling-point aromatic solvent inlet of the aromatics lightening unit is used to input the solvent, and the triphenylene mixture outlet is used to output the triphenylene mixture and supply it to the HDA unit;

[0088] The dry gas aromatization unit is used to aromatize olefin-rich dry gas to produce light aromatics and ethane. The second dry gas inlet of the dry gas aromatization unit is used to input dry gas from the SFC unit, the ethane outlet is used to output ethane product, and the first mixed aromatics outlet is used to output mixed aromatics to the aromatics separation unit.

[0089] The light naphtha aromatization unit is used to produce light aromatics, propane and butane after aromatization of light naphtha; the second light naphtha inlet of the light naphtha aromatization unit is used to input light naphtha from the first refining unit, the second mixed aromatics outlet is used to provide mixed aromatics to the aromatics separation unit, and the third propane outlet and butane outlet are used to output propane products and butane products respectively.

[0090] The system provided by the utility model is based on selective fluid cracking (SFC) technology, and performs a more extensive chain extension matching under the route setting of producing more light olefins and aromatics. The system can efficiently produce the missing polymer materials in a low-cost, low-energy, high-conversion and low-emission manner, filling the gap.

[0091] The low-carbon polymer material production system of the utility model can provide raw materials for various production devices of high-end chain extension projects, and further produce high-end chemical products and new material products.

[0092] The low-carbon polymer material production system of the present invention can bring the following technical effects: significantly shortening the production process of low-carbon polymer materials, reducing the steps of producing olefins and downstream products, reducing investment, and lowering production costs; the production system has strong adaptability to raw materials, and can select heavy and light raw oils for direct feeding, without the need for pre-treatment processes, thereby reducing energy consumption and carbon emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0093] Figure 1 This is a schematic structural diagram of the low-carbon polymer material production system provided in Example 1.

[0094] Description of main figures:

[0095] SFC device 1, fuel oil inlet 101, dry gas outlet 102, first acid gas outlet 103, liquefied gas outlet 104, superimposed cycle oil inlet 105, light aromatics outlet 106, medium cycle oil inlet 107, heavy aromatics outlet 108, energy storage coke oil inlet 109, energy storage coke raw material outlet 110;

[0096] Styrene device 2, first hydrogen inlet 201, first dry gas inlet 202, first styrene outlet 203, second styrene outlet 204, benzene inlet 205;

[0097] Sulfuric acid / waste acid recovery device 3, acid gas inlet 301, concentrated sulfuric acid outlet 302;

[0098] Acrylonitrile device 4, first propylene inlet 401, concentrated sulfuric acid inlet 402, acrylonitrile outlet 403, HCN outlet 404;

[0099] ABS device 5, first butadiene inlet 501, acrylonitrile inlet 502, styrene inlet 503, ABS resin outlet 504;

[0100] Adiponitrile unit 6, second butadiene inlet 601, HCN inlet 602, adiponitrile outlet 603;

[0101] PTPE device 7, second propylene inlet 701, second hydrogen inlet 702, ethylene inlet 703, polypropylene product outlet 704, first butene-1 inlet 705;

[0102] Gas separation device 8, liquefied gas inlet 801, propylene outlet 802, first propane outlet 803, mixed C4 outlet 804, propylene product outlet 805;

[0103] PDO device 9, third hydrogen inlet 901, third propylene inlet 902, 1,3-propylene glycol outlet 903;

[0104] PTT device 10, 1,3-propylene glycol inlet 1001, PTA inlet 1002, PTT outlet 1003;

[0105] First refining device 11, pyrolysis gasoline inlet 1101, light aromatics inlet 1102, fourth hydrogen inlet 1103, second acid gas outlet 1104, light naphtha outlet 1105, superposed pentane oil inlet 1106, heavy naphtha outlet 1107, crude naphtha inlet 1108;

[0106] Lamination device 12, lamination cycle oil outlet 1201, heavy C4 inlet 1202, n-butane outlet 1203, normal n-butane inlet 1204, lamination pentane oil outlet 1205, first light naphtha inlet 1206;

[0107] Butene-1 / isobutylene combined unit 13, heavy C4 outlet 1301, mixed C4 inlet 1302, first butene-1 outlet 1303, second butene-1 outlet 1304, high-purity isobutylene outlet 1305, isobutane outlet 1306;

[0108] POE device 14, 1-hexene inlet 1401, second butene-1 inlet 1402, POE outlet 1403;

[0109] C4 normal propane device 15, normal butane outlet 1501, isobutane inlet 1502, second propane outlet 1503, first fuel gas outlet 1504;

[0110] Second refining device 16, fifth hydrogen inlet 1601, heavy aromatics inlet 1602, medium cycle oil outlet 1603, crude naphtha outlet 1604, aromatics inlet 1605;

[0111] Aromatic separation unit 17, heavy naphtha inlet 1701, benzene / toluene / mixed xylene outlet 1702, industrial hexane outlet 1703, mixed xylene / high boiling point aromatic solvent outlet 1704, first mixed aromatics inlet 1705, second mixed aromatics inlet 1706;

[0112] HDA device 18, benzene / toluene / mixed xylene inlet 1801, sixth hydrogen inlet 1802, benzene outlet 1803, second fuel gas outlet 1804, hydrogen-rich tail gas outlet 1805;

[0113] PPC device 19, carbon dioxide inlet 1901, propylene oxide inlet 1902, polypropylene carbonate outlet 1903, propylene carbonate outlet 1904;

[0114] Hydrogen production device 20, hydrogen-rich tail gas inlet 2001, first carbon dioxide outlet 2002, second carbon dioxide outlet 2003, hydrogen outlet 2004;

[0115] Energy storage coke combined device 21, seventh hydrogen inlet 2101, energy storage coke raw material inlet 2102, energy storage coke wax oil outlet 2103, aromatics outlet 2104, energy storage coke outlet 2105;

[0116] Aromatic lightening unit 22, mixed xylene / high boiling point aromatic solvent inlet 2201, triphenyl mixture outlet 2202;

[0117] Dry gas aromatization unit 23, second dry gas inlet 2301, ethane outlet 2302, first mixed aromatics outlet 2303;

[0118] Light naphtha aromatization unit 24, second light naphtha inlet 2401, second mixed aromatics outlet 2402, third propane outlet 2403, butane outlet 2404. DETAILED DESCRIPTION

[0119] In order to have a clearer understanding of the technical features, objectives and beneficial effects of the present invention, the technical solution of the present invention is now described in detail below, but it should not be understood as limiting the scope of implementation of the present invention.

[0120] The meanings of some of the English abbreviations used in this article are as follows:

[0121] SFC: selective fluid lysis;

[0122] ABS: Acrylonitrile-butadiene-styrene terpolymer;

[0123] PTPE: polypropylene thermoplastic elastomer;

[0124] PDO: 1,3-propylene glycol;

[0125] PTT: polymer of 1,3-propylene glycol and terephthalic acid;

[0126] HCN: hydrocyanic acid;

[0127] POE: polyolefin elastomer;

[0128] HDA: Hydrodealkylation, in this context, refers to the toluene-to-benzene process and the associated aromatics extraction unit;

[0129] PPC: polypropylene carbonate;

[0130] SAR: Spent Acid Recovery;

[0131] PTA: terephthalic acid.

[0132] Example 1

[0133] This embodiment provides a low-carbon polymer material production system, the structure of which is as follows: Figure 1The low-carbon polymer material production system includes an SFC unit 1, a styrene unit 2, a sulfuric acid / waste acid recovery unit 3, an acrylonitrile unit 4, an ABS unit 5, an adiponitrile unit 6, a PTPE unit 7, a gas separation unit 8, a PDO unit 9, a PTT unit 10, a first refining unit 11, a superposition unit 12, a butene-1 / isobutylene combined unit 13, a POE unit 14, a C4 normal unit 15, a second refining unit 16, an aromatics separation unit 17, an HDA unit 18, a PPC unit 19, a hydrogen production unit 20, an energy storage coke combined unit 21, an aromatics lightening unit 22, a dry gas aromatization unit 23, and a light naphtha aromatization unit 24.

[0134] in:

[0135] The SFC device 1 is provided with a fuel oil inlet 101, a dry gas outlet 102, a first acid gas outlet 103, a liquefied gas outlet 104, a superimposed cycle oil inlet 105, a light aromatic hydrocarbon outlet 106, a medium cycle oil inlet 107, a heavy aromatic hydrocarbon outlet 108, an energy storage coke oil inlet 109, and an energy storage coke raw material outlet 110;

[0136] The styrene device 2 is provided with a first hydrogen inlet 201, a first dry gas inlet 202, a first styrene outlet 203, a second styrene outlet 204, and a benzene inlet 205;

[0137] The sulfuric acid / waste acid recovery device 3 is provided with an acid gas inlet 301 and a concentrated sulfuric acid outlet 302;

[0138] The acrylonitrile device 4 is provided with a first propylene inlet 401, a concentrated sulfuric acid inlet 402, an acrylonitrile outlet 403, and an HCN outlet 404;

[0139] The ABS device 5 is provided with a first butadiene inlet 501, an acrylonitrile inlet 502, a styrene inlet 503, and an ABS resin outlet 504;

[0140] The adiponitrile device 6 is provided with a second butadiene inlet 601, an HCN inlet 602, and an adiponitrile outlet 603;

[0141] The PTPE device 7 is provided with a second propylene inlet 701, a second hydrogen inlet 702, an ethylene inlet 703, a polypropylene product outlet 704, and a first butene-1 inlet 705;

[0142] The gas separation device 8 is provided with a liquefied gas inlet 801, a propylene outlet 802, a first propane outlet 803, and a mixed C4 outlet 804;

[0143] The PDO device 9 is provided with a third hydrogen inlet 901, a third propylene inlet 902, and a 1,3-propylene glycol outlet 903;

[0144] The PTT device 10 is provided with a 1,3-propylene glycol inlet 1001, a PTA inlet 1002, and a PTT outlet 1003;

[0145] The first refining device 11 is provided with a pyrolysis gasoline inlet 1101, a light aromatic hydrocarbon inlet 1102, a fourth hydrogen inlet 1103, a second acid gas outlet 1104, a light naphtha outlet 1105, a superposed pentane oil inlet 1106, a heavy naphtha outlet 1107, and a crude naphtha inlet 1108;

[0146] The stacking device 12 is provided with a stacking cycle oil outlet 1201, a heavy C4 inlet 1202, a normal butane outlet 1203, a normal butane inlet 1204, a stacking pentane oil outlet 1205, and a first light naphtha inlet 1206;

[0147] The butene-1 / isobutylene combined unit 13 is provided with a heavy C4 outlet 1301, a mixed C4 inlet 1302, a first butene-1 outlet 1303, a second butene-1 outlet 1304, a high-purity isobutylene outlet 1305, and an isobutane outlet 1306;

[0148] The POE device 14 is provided with a 1-hexene inlet 1401, a second butene-1 inlet 1402, and a POE outlet 1403;

[0149] The C4 normal propane device 15 is provided with a normal butane outlet 1501, an isobutane inlet 1502, a second propane outlet 1503, and a first fuel gas outlet 1504;

[0150] The second refining device 16 is provided with a fifth hydrogen inlet 1601, a heavy aromatics inlet 1602, a medium cycle oil outlet 1603, a crude naphtha outlet 1604, and an aromatics inlet 1605;

[0151] The aromatics separation device 17 is provided with a heavy naphtha inlet 1701, a benzene / toluene / mixed xylene outlet 1702, an industrial hexane outlet 1703, a mixed xylene / high boiling point aromatic solvent outlet 1704, a first mixed aromatics inlet 1705, and a second mixed aromatics inlet 1706;

[0152] The HDA device 18 is provided with a benzene / toluene / mixed xylene inlet 1801, a sixth hydrogen inlet 1802, a benzene outlet 1803, a second fuel gas outlet 1804, and a hydrogen-rich tail gas outlet 1805;

[0153] The PPC device 19 is provided with a carbon dioxide inlet 1901, a propylene oxide inlet 1902, a polypropylene carbonate outlet 1903, and a propylene carbonate outlet 1904;

[0154] The hydrogen production device 20 is provided with a hydrogen-rich tail gas inlet 2001, a first carbon dioxide outlet 2002, a second carbon dioxide outlet 2003, and a hydrogen outlet 2004;

[0155] The energy storage coke combined device 21 is provided with a seventh hydrogen inlet 2101, an energy storage coke raw material inlet 2102, an energy storage coke wax oil outlet 2103, an aromatics outlet 2104, and an energy storage coke outlet 2105;

[0156] The aromatic hydrocarbon lightening device 22 is provided with a mixed xylene / high boiling point aromatic hydrocarbon solvent inlet 2201 and a triphenyl mixture outlet 2202;

[0157] The dry gas aromatization device 23 is provided with a second dry gas inlet 2301, an ethane outlet 2302, and a first mixed aromatics outlet 2303;

[0158] The light naphtha aromatization unit 24 is provided with a second light naphtha inlet 2401, a second mixed aromatics outlet 2402, a third propane outlet 2403, and a butane outlet 2404;

[0159] The fuel oil inlet 101 of the SFC unit 1 is used to input fuel oil. The dry gas outlet 102 of the SFC unit 1 is connected to the first dry gas inlet 202 of the styrene unit 2 and the second dry gas inlet 2301 of the dry gas aromatization unit 23, respectively, for providing dry gas to the styrene unit 2 and the dry gas aromatization unit 23, respectively. The first hydrogen inlet 201 of the styrene unit 2 is used to input hydrogen. The benzene inlet 205 of the styrene unit 2 is connected to the benzene outlet 1803 of the HDA unit 18, for providing benzene to the styrene unit 2. The benzene outlet 1803 of the HDA unit 18 is connected to a benzene product branch line for outputting the benzene product. The first styrene outlet 203 of the styrene unit 2 is used to output the styrene product. The second styrene outlet 204 of the styrene unit 2 is connected to the styrene inlet 503 of the ABS unit 5, for providing styrene to the ABS unit 5.

[0160] The first acid gas outlet 103 of the SFC device 1 is connected to the acid gas inlet 301 of the sulfuric acid / waste acid recovery device 3 to provide acid gas to the sulfuric acid / waste acid recovery device 3. The concentrated sulfuric acid outlet 302 of the sulfuric acid / waste acid recovery device 3 is connected to the concentrated sulfuric acid inlet of the acrylonitrile device 4 to provide concentrated sulfuric acid to the acrylonitrile device 4.

[0161] The liquefied gas outlet 104 of the SFC unit 1 is connected to the liquefied gas inlet 801 of the gas separation unit 8 for supplying liquefied gas to the gas separation unit 8. The propylene outlet 802 of the gas separation unit 8 has four branches: a first branch connected to the first propylene inlet 401 of the acrylonitrile unit 4; a second branch connected to the second propylene inlet 701 of the PTPE unit 7; a third branch connected to the third propylene inlet 902 of the PDO unit 9; and a fourth branch serving as a propylene product outlet 805, for supplying propylene to the acrylonitrile unit 4, the PTPE unit 7, and the PDO unit 9 and outputting a propylene product, respectively. The first propane outlet 803 of the gas separation unit 8 is used to output a propane product. The mixed C4 outlet 804 of the gas separation unit 8 is connected to the mixed C4 inlet 1302 of the butene-1 / isobutylene combination unit 13 for supplying mixed C4 to the butene-1 / isobutylene combination unit 13.

[0162] The acrylonitrile outlet 403 of the acrylonitrile device 4 is connected to the acrylonitrile inlet 502 of the ABS device 5 for providing acrylonitrile to the ABS device 5; the HCN outlet 404 of the acrylonitrile device 4 is connected to the HCN inlet 602 of the adiponitrile device 6 for providing HCN to the adiponitrile device 6;

[0163] The first butadiene inlet 501 of the ABS device 5 is used to input butadiene, and the ABS resin outlet 504 of the ABS device 5 is used to output ABS resin products;

[0164] The second butadiene inlet 601 of the adiponitrile unit 6 is used to input butadiene, and the adiponitrile outlet 603 of the adiponitrile unit 6 is used to output the adiponitrile product;

[0165] The second hydrogen inlet 702 of the PTPE device 7 is used to input hydrogen, the ethylene inlet 703 of the PTPE device 7 is used to input ethylene, the polypropylene product outlet 704 of the PTPE device 7 is used to output the polypropylene product, and the first butene-1 inlet 705 of the PTPE device 7 is connected to the first butene-1 outlet 1303 of the butene-1 / isobutylene combined unit 13 to provide butene-1 to the PTPE device 7;

[0166] The third hydrogen inlet 901 of the PDO device 9 is used to input hydrogen, and the 1,3-propylene glycol outlet 903 of the PDO device 9 is connected to the 1,3-propylene glycol inlet 1001 of the PTT device 10 to provide 1,3-propylene glycol to the PTT device 10;

[0167] The PTA inlet 1002 of the PTT device 10 is used to input PTA, and the PTT outlet 1003 of the PTT device 10 is used to output PTT products;

[0168] The light aromatic hydrocarbon outlet 106 of the SFC device 1 is connected to the light aromatic hydrocarbon inlet 1102 of the first refining device 11 for providing light aromatic hydrocarbons to the first refining device 11. The pyrolysis gasoline inlet 1101 of the first refining device 11 is used to input pyrolysis gasoline. The fourth hydrogen inlet 1103 of the first refining device 11 is used to input hydrogen. The second acid gas outlet 1104 of the first refining device 11 is connected to the acid gas inlet 301 of the sulfuric acid / waste acid recovery device 3 for providing acid gas to the sulfuric acid / waste acid recovery device 3. The light naphtha outlet 1105 of the first refining device 11 is connected to the first light naphtha outlet 1106 of the superposition device 12. The inlet 1206 of the first refining device 11 is connected to the inlet 1206 of the second refining device 12 for supplying light naphtha to the superposition device 12. The superposition pentane oil inlet 1106 of the first refining device 11 is connected to the superposition pentane oil outlet 1205 of the first refining device 12 for supplying superposition pentane oil to the first refining device 11. The heavy naphtha outlet 1107 of the first refining device 11 is connected to the heavy naphtha inlet 1701 of the aromatics separation device 17 for supplying heavy naphtha to the aromatics separation device 17. The crude naphtha inlet 1108 of the first refining device 11 is connected to the crude naphtha outlet 1604 of the second refining device 16 for supplying crude naphtha to the first refining device 11.

[0169] The stacking cycle oil outlet 1201 of the stacking device 12 is connected to the stacking cycle oil inlet 105 of the SFC device 1 to provide stacking cycle oil to the SFC device 1. The heavy C4 inlet 1202 of the stacking device 12 is connected to the heavy C4 outlet 1301 of the butene-1 / isobutylene combined unit 13 to provide heavy C4 to the stacking device 12. The n-butane outlet 1203 of the stacking device 12 is used to output n-butane products. The normal-n-butane inlet 1204 of the stacking device 12 is connected to the normal-n-butane outlet 1501 of the C4 normal unit 15 to provide normal-n-butane to the stacking device 12.

[0170] The second butene-1 outlet 1304 of the butene-1 / isobutylene combined unit 13 is connected to the second butene-1 inlet 1402 of the POE unit 14 to provide butene-1 to the POE unit 14. The high-purity isobutylene outlet 1305 of the butene-1 / isobutylene combined unit 13 is used to output a high-purity isobutylene product. The isobutane outlet 1306 of the butene-1 / isobutylene combined unit 13 is connected to the isobutane inlet 1502 of the C4 normal unit 15 to provide isobutane to the C4 normal unit 15.

[0171] The 1-hexene inlet 1401 of the POE device 14 is used to input 1-hexene, and the POE outlet 1403 of the POE device 14 is used to output POE products;

[0172] The second propane outlet 1503 of the C4 normalizing device 15 is used to output propane products, and the first fuel gas outlet 1504 of the C4 normalizing device 15 is a fuel gas product outlet, used to output fuel gas products;

[0173] The fifth hydrogen inlet 1601 of the second refining unit 16 is used to input hydrogen. The heavy aromatics inlet 1602 of the second refining unit 16 is connected to the heavy aromatics outlet 108 of the SFC unit 1 for providing heavy aromatics to the second refining unit 16. The medium cycle oil outlet 1603 of the second refining unit 16 is connected to the medium cycle oil inlet 107 of the SFC unit 1 for providing medium cycle oil to the SFC unit 1. The aromatics inlet 1605 of the second refining unit 16 is connected to the aromatics outlet 2104 of the energy storage coke combined unit 21 for providing aromatics to the second refining unit 16.

[0174] The benzene / toluene / mixed xylene outlet 1702 of the aromatics separation unit 17 is connected to the benzene / toluene / mixed xylene inlet 1801 of the HDA unit 18, for providing benzene / toluene / mixed xylene to the HDA unit 18. The industrial hexane outlet 1703 of the aromatics separation unit 17 is used to output industrial hexane products. The mixed xylene / high-boiling-point aromatic solvent outlet 1704 of the aromatics separation unit 17 is connected to the mixed xylene / high-boiling-point aromatic solvent inlet 2201 of the aromatics lightening unit 22, for providing mixed xylene / high-boiling-point aromatic solvent to the aromatics lightening unit 22.

[0175] The sixth hydrogen inlet 1802 of the HDA device 18 is used to input hydrogen, the second fuel gas outlet 1804 of the HDA device 18 is used to output the fuel gas product, and the hydrogen-rich tail gas outlet 1805 of the HDA device 18 is connected to the hydrogen-rich tail gas inlet 2001 of the hydrogen production device 20 to provide hydrogen-rich tail gas to the hydrogen production device 20;

[0176] The carbon dioxide inlet 1901 of the PPC device 19 is connected to the first carbon dioxide outlet 2002 of the hydrogen production device 20 for supplying carbon dioxide to the PPC device 19. The propylene oxide inlet 1902 of the PPC device 19 is used to input propylene oxide. The polypropylene carbonate outlet 1903 of the PPC device 19 is used to output a polypropylene carbonate product. The propylene carbonate outlet 1904 of the PPC device 19 is used to output a propylene carbonate product.

[0177] The second carbon dioxide outlet 2003 of the hydrogen production device 20 is used to output carbon dioxide products, and the hydrogen outlet 2004 of the hydrogen production device 20 is used to output hydrogen products; the hydrogen production device 20 is also provided with a CO2 recovery device for recovering the generated carbon dioxide;

[0178] The seventh hydrogen inlet 2101 of the energy storage coke combined device 21 is used to input hydrogen, the energy storage coke raw material inlet 2102 of the energy storage coke combined device 21 is connected to the energy storage coke raw material outlet 110 of the SFC device 1, and is used to provide energy storage coke raw material to the energy storage coke combined device 21, the energy storage tar wax oil outlet 2103 of the energy storage coke combined device 21 is connected to the energy storage tar wax oil inlet 109 of the SFC device 1, and is used to provide energy storage tar wax oil to the SFC device 1, and the energy storage coke outlet 2105 of the energy storage coke combined device 21 is used to output energy storage coke products;

[0179] The triphenyl mixture outlet 2202 of the aromatics lightening unit 22 is connected to the benzene / toluene / mixed xylene inlet 1801 of the HDA unit 18 to provide the triphenyl mixture to the HDA unit 18;

[0180] The first mixed aromatics outlet 2303 of the dry gas aromatization unit 23 is connected to the first mixed aromatics inlet 1705 of the aromatics separation unit 17 for providing mixed aromatics to the aromatics separation unit 17, and the ethane outlet 2302 is used to output ethane products;

[0181] The second mixed aromatics outlet 2402 of the light naphtha aromatization unit 24 is connected to the second mixed aromatics inlet 1706 of the aromatics separation unit 17 for providing mixed aromatics to the aromatics separation unit 17. The third propane outlet 2403 and the butane outlet 2404 are used to output propane products and butane products, respectively.

[0182] When the low-carbon polymer material production system provided in Example 1 is used, the following technical effects can be achieved:

[0183] 1. Under the premise of the same processing depth and product sequence, the processing steps are greatly reduced, which reduces capital expenditure; 2. The raw material requirements are low and there is no need for raw material pretreatment, which reduces operating costs and increases economic benefits;

[0184] 3. The product series is rich, and most of them are important new materials or intermediate materials for new material processing, with strong risk resistance; 4. The best innovative integration route has low comprehensive energy consumption, and obvious environmental protection attributes and social benefits.

Claims

1. A low-carbon polymer material production system, characterized in that: The low-carbon polymer material production system comprises: an SFC device (1), a styrene device (2), a sulfuric acid / waste acid recovery device (3), an acrylonitrile device (4), an ABS device (5), an adiponitrile device (6), a PTPE device (7), a gas separation device (8), a PDO device (9), and a PTT device (10); in: The SFC device (1) is provided with a fuel oil inlet (101), a dry gas outlet (102), a first acid gas outlet (103), a liquefied gas outlet (104), a superimposed cycle oil inlet (105), a light aromatic hydrocarbon outlet (106), a medium cycle oil inlet (107), a heavy aromatic hydrocarbon outlet (108), an energy storage coke oil inlet (109), and an energy storage coke raw material outlet (110); The styrene device (2) is provided with a first hydrogen inlet (201), a first dry gas inlet (202), a first styrene outlet (203), a second styrene outlet (204), and a benzene inlet (205); The sulfuric acid / waste acid recovery device (3) is provided with an acid gas inlet (301) and a concentrated sulfuric acid outlet (302); The acrylonitrile device (4) is provided with a first propylene inlet (401), a concentrated sulfuric acid inlet (402), an acrylonitrile outlet (403), and an HCN outlet (404); The ABS device (5) is provided with a first butadiene inlet (501), an acrylonitrile inlet (502), a styrene inlet (503), and an ABS resin outlet (504); The adiponitrile device (6) is provided with a second butadiene inlet (601), an HCN inlet (602), and an adiponitrile outlet (603); The PTPE device (7) is provided with a second propylene inlet (701), a second hydrogen inlet (702), an ethylene inlet (703), a polypropylene product outlet (704), and a first butene-1 inlet (705); The gas separation device (8) is provided with a liquefied gas inlet (801), a propylene outlet (802), a first propane outlet (803), and a mixed C4 outlet (804); The PDO device (9) is provided with a third hydrogen inlet (901), a third propylene inlet (902), and a 1,3-propylene glycol outlet (903); The PTT device (10) is provided with a 1,3-propylene glycol inlet (1001), a PTA inlet (1002), and a PTT outlet (1003); The dry gas outlet (102) of the SFC device (1) is connected to the first dry gas inlet (202) of the styrene device (2); The second styrene outlet (204) of the styrene device (2) is connected to the styrene inlet (503) of the ABS device (5); The first acid gas outlet (103) of the SFC device (1) is connected to the acid gas inlet (301) of the sulfuric acid / waste acid recovery device (3), and the concentrated sulfuric acid outlet (302) of the sulfuric acid / waste acid recovery device (3) is connected to the concentrated sulfuric acid inlet of the acrylonitrile device (4); The liquefied gas outlet (104) of the SFC device (1) is connected to the liquefied gas inlet (801) of the gas separation device (8), and the propylene outlet (802) of the gas separation device (8) is provided with four branches, the first branch being connected to the first propylene inlet (401) of the acrylonitrile device (4), the second branch being connected to the second propylene inlet (701) of the PTPE device (7), the third branch being connected to the third propylene inlet (902) of the PDO device (9), and the fourth branch being a propylene product outlet (805); The acrylonitrile outlet (403) of the acrylonitrile device (4) is connected to the acrylonitrile inlet (502) of the ABS device (5), and the HCN outlet (404) of the acrylonitrile device (4) is connected to the HCN inlet (602) of the adiponitrile device (6); The third hydrogen inlet (901) of the PDO device (9) is used to input hydrogen, and the 1,3-propylene glycol outlet (903) of the PDO device (9) is connected to the 1,3-propylene glycol inlet (1001) of the PTT device (10).

2. The low-carbon polymer material production system according to claim 1, characterized in that: The low-carbon polymer material production system further comprises: a first refining device (11), a superposition device (12), a second refining device (16), an aromatics separation device (17), an energy storage coke combination device (21), an aromatics lightening device (22), a dry gas aromatization device (23), and a light naphtha aromatization device (24); The first refining device (11) is provided with a pyrolysis gasoline inlet (1101), a light aromatic hydrocarbon inlet (1102), a fourth hydrogen inlet (1103), a second acid gas outlet (1104), a light naphtha outlet (1105), a superposed pentane oil inlet (1106), a heavy naphtha outlet (1107), and a crude naphtha inlet (1108); The stacking device (12) is provided with a stacking cycle oil outlet (1201), a heavy C4 inlet (1202), an n-butane outlet (1203), a normal n-butane inlet (1204), a stacking pentane oil outlet (1205), and a first light naphtha inlet (1206); The aromatics separation device (17) is provided with a heavy naphtha inlet (1701), a benzene / toluene / mixed xylene outlet (1702), an industrial hexane outlet (1703), a mixed xylene / high boiling point aromatic solvent outlet (1704), a first mixed aromatics inlet (1705), and a second mixed aromatics inlet (1706); The energy storage coke combined device (21) is provided with a seventh hydrogen inlet (2101), an energy storage coke raw material inlet (2102), an energy storage coke wax oil outlet (2103), an aromatics outlet (2104), and an energy storage coke outlet (2105); The aromatic hydrocarbon lightening device (22) is provided with a mixed xylene / high boiling point aromatic hydrocarbon solvent inlet (2201) and a triphenyl mixture outlet (2202); The dry gas aromatization device (23) is provided with a second dry gas inlet (2301), an ethane outlet (2302), and a first mixed aromatic hydrocarbon outlet (2303); The light naphtha aromatization unit (24) is provided with a second light naphtha inlet (2401), a second mixed aromatics outlet (2402), a third propane outlet (2403), and a butane outlet (2404); The stacking circulating oil outlet (1201) of the stacking device (12) is connected to the stacking circulating oil inlet (105) of the SFC device (1); The heavy aromatics inlet (1602) of the second refining device (16) is connected to the heavy aromatics outlet (108) of the SFC device (1), the medium circulating oil outlet (1603) of the second refining device (16) is connected to the medium circulating oil inlet (107) of the SFC device (1), and the aromatics inlet (1605) of the second refining device (16) is connected to the aromatics outlet (2104) of the energy storage coke combined device (21); The mixed xylene / high boiling point aromatic hydrocarbon solvent outlet (1704) of the aromatic hydrocarbon separation device (17) is connected to the mixed xylene / high boiling point aromatic hydrocarbon solvent inlet (2201) of the aromatic hydrocarbon lightening device (22); The energy storage coke raw material inlet (2102) of the energy storage coke combined device (21) is connected to the energy storage coke raw material outlet (110) of the SFC device (1), and the energy storage tar wax oil outlet (2103) of the energy storage coke combined device (21) is connected to the energy storage tar wax oil inlet (109) of the SFC device (1); The second dry gas inlet (2301) of the dry gas aromatization unit (23) is connected to the dry gas outlet (102) of the SFC unit (1), and the first mixed aromatic hydrocarbon outlet (2303) of the dry gas aromatization unit (23) is connected to the first mixed aromatic hydrocarbon inlet (1705) of the aromatic hydrocarbon separation unit (17); The second light naphtha inlet (2401) of the light naphtha aromatization unit (24) is connected to the light naphtha outlet (1105) of the first refining unit (11), and the second mixed aromatics outlet (2402) of the light naphtha aromatization unit (24) is connected to the second mixed aromatics inlet (1706) of the aromatics separation unit (17).

3. The low-carbon polymer material production system according to claim 2, characterized in that: The light aromatic hydrocarbon outlet (106) of the SFC device (1) is connected to the light aromatic hydrocarbon inlet (1102) of the first refining device (11), the second acid gas outlet (1104) of the first refining device (11) is connected to the acid gas inlet (301) of the sulfuric acid / waste acid recovery device (3), the light naphtha outlet (1105) of the first refining device (11) is connected to the first light naphtha inlet (1206) of the superposition device (12), and the The superimposed pentane oil inlet (1106) of the first refining device (11) is connected to the superimposed pentane oil outlet (1205) of the superimposed device (12), the heavy naphtha outlet (1107) of the first refining device (11) is connected to the heavy naphtha inlet (1701) of the aromatic separation device (17), and the crude naphtha inlet (1108) of the first refining device (11) is connected to the crude naphtha outlet (1604) of the second refining device (16).

4. The low-carbon polymer material production system according to claim 2, characterized in that: The low-carbon polymer material production system further comprises: a butene-1 / isobutylene combined unit (13), a POE unit (14), a C4 normal unit (15), an HDA unit (18), a PPC unit (19), and a hydrogen production unit (20); The butene-1 / isobutylene combined unit (13) is provided with a heavy C4 outlet (1301), a mixed C4 inlet (1302), a first butene-1 outlet (1303), a second butene-1 outlet (1304), a high-purity isobutylene outlet (1305), and an isobutane outlet (1306); The POE device (14) is provided with a 1-hexene inlet (1401), a second butene-1 inlet (1402), and a POE outlet (1403); The C4 normal-propane device (15) is provided with a normal-butane outlet (1501), an isobutane inlet (1502), a second propane outlet (1503), and a first fuel gas outlet (1504); The second refining device (16) is provided with a fifth hydrogen inlet (1601), a heavy aromatics inlet (1602), a medium cycle oil outlet (1603), a crude naphtha outlet (1604), and an aromatics inlet (1605); The HDA device (18) is provided with a benzene / toluene / mixed xylene inlet (1801), a sixth hydrogen inlet (1802), a benzene outlet (1803), a second fuel gas outlet (1804), and a hydrogen-rich tail gas outlet (1805); The PPC device (19) is provided with a carbon dioxide inlet (1901), a propylene oxide inlet (1902), a polypropylene carbonate outlet (1903), and a propylene carbonate outlet (1904); The hydrogen production device (20) is provided with a hydrogen-rich tail gas inlet (2001), a first carbon dioxide outlet (2002), a second carbon dioxide outlet (2003), and a hydrogen outlet (2004); The second butene-1 outlet (1304) of the butene-1 / isobutylene combined unit (13) is connected to the second butene-1 inlet (1402) of the POE unit (14), and the isobutane outlet (1306) of the butene-1 / isobutylene combined unit (13) is connected to the isobutane inlet (1502) of the C4 normal unit (15); The first fuel gas outlet (1504) of the C4 normal structure device (15) is a fuel gas product outlet; The hydrogen-rich tail gas outlet (1805) of the HDA device (18) is connected to the hydrogen-rich tail gas inlet (2001) of the hydrogen production device (20); The carbon dioxide inlet (1901) of the PPC device (19) is connected to the first carbon dioxide outlet (2002) of the hydrogen production device (20).

5. The low-carbon polymer material production system according to claim 4, characterized in that: The first butene-1 inlet (705) of the PTPE unit (7) is connected to the first butene-1 outlet (1303) of the butene-1 / isobutylene combined unit (13).

6. The low-carbon polymer material production system according to claim 4, characterized in that: The benzene inlet (205) of the styrene unit (2) is connected to the benzene outlet (1803) of the HDA unit (18); The benzene outlet (1803) of the HDA device (18) is connected to a benzene product branch line for outputting the benzene product; The triphenyl mixture outlet (2202) of the aromatics lightening unit (22) is connected to the benzene / toluene / mixed xylene inlet (1801) of the HDA unit (18).

7. The low-carbon polymer material production system according to claim 4, characterized in that: The first butene-1 inlet (705) of the PTPE unit (7) is connected to the first butene-1 outlet (1303) of the butene-1 / isobutylene combined unit (13); the mixed C4 outlet (804) of the gas separation unit (8) is connected to the mixed C4 inlet (1302) of the butene-1 / isobutylene combined unit (13).

8. The low-carbon polymer material production system according to claim 4, characterized in that: The benzene / toluene / mixed xylene outlet (1702) of the aromatic separation unit (17) is connected to the benzene / toluene / mixed xylene inlet (1801) of the HDA unit (18).

9. The low-carbon polymer material production system according to claim 4, characterized in that: The heavy C4 inlet (1202) of the stacking device (12) is connected to the heavy C4 outlet (1301) of the butene-1 / isobutylene combined device (13).

10. The low-carbon polymer material production system according to claim 4, characterized in that: The normal-n-butane inlet (1204) of the stacking device (12) is connected to the normal-n-butane outlet (1501) of the C4 normal-butane device (15).

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