Hydrocarbon preparation method and device

Abstract

The embodiment of the invention provides a hydrocarbon preparation method and device.The device comprises a first-stage energy utilization system, a second-stage energy utilization system and a third-stage energy utilization system, and the first-stage energy utilization system comprises energy supply equipment, fluidized bed energy charging equipment, fixed bed energy storage equipment and steam power generation equipment; the second-stage energy utilization system comprises a gasification furnace containing materials to be gasified and a first heat exchanger, and the third-stage energy utilization system comprises a reactor for preparing hydrocarbons, a rectifying tower and a second heat exchanger. According to the embodiment of the invention, the sustainable green production of hydrocarbons is realized through the combined action of the first-stage energy utilization system, the second-stage energy utilization system and the third-stage energy utilization system.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrocarbon preparation, and in particular to a hydrocarbon preparation method and device. Background Art

[0002] In recent years, with the growing global demand for renewable energy, renewable energy such as solar energy and wind energy have been vigorously promoted due to their natural clean and environmentally friendly characteristics. However, the inherent characteristics of renewable energy such as intermittent, periodic, and volatile have brought significant challenges to the green production of olefins and aromatics.

[0003] Since the energy density of aviation kerosene is 80 times that of existing commercial lithium-ion batteries, it is difficult for the aviation industry to decarbonize through electrification in the foreseeable future, and sustainable aviation fuel is an inevitable choice. The rapid development of the aviation industry and carbon emission targets require that the synthesis of sustainable aviation fuels reach at least tens of millions of tons in the future.

[0004] At present, the technology of biomass hydrogenation to produce aviation fuel is relatively mature, but the technology of biomass hydrogenation to produce aviation fuel cannot meet the large-scale demand in terms of raw materials, making it difficult to achieve green and sustainable production of olefins and aromatics. Summary of the invention

[0005] In view of the above problems, a method and device for preparing hydrocarbons is proposed to overcome the above problems or at least partially solve the above problems, comprising:

[0006] A hydrocarbon preparation device, the device comprising a primary energy utilization system, a secondary energy utilization system and a tertiary energy utilization system, the primary energy utilization system comprising an energy supply device, a fluidized bed energy charging device, a fixed bed energy storage device and a steam power generation device, the secondary energy utilization system comprising a gasifier containing a material to be gasified and a first heat exchanger, the tertiary energy utilization system comprising a reactor for preparing hydrocarbons, a distillation tower and a second heat exchanger;

[0007] The first energy utilization system is used to store heat energy in the fixed bed energy storage device through the energy supply device and the fluidized bed charging device during the heat storage stage, and to heat cooling water to generate first steam through the energy storage device and the steam power generation device using heat energy during the heat release stage, and to generate steam power using the first steam to provide electrical energy for the device;

[0008] The second energy utilization system is used to react the first steam as a raw material with the gasified material in the gasifier to generate a first synthesis gas, and to cool the first synthesis gas using cooling water from the first heat exchanger to obtain a second synthesis gas and a second steam, and the second steam is input into the steam power generation equipment to generate electricity;

[0009] The third energy utilization system is used to generate crude hydrocarbon products in the reactor based on the second synthesis gas, and cool the crude hydrocarbon products by cooling water of the second heat exchanger to obtain the cooled crude hydrocarbon products and third steam, and input the cooled crude hydrocarbon products into the distillation tower for purification, and input the third steam into the steam power generation equipment for power generation.

[0010] Optionally, the device further comprises a third heat exchanger connected to the top of the distillation tower, wherein the third heat exchanger is used to collect low-temperature gas energy leaving the top of the distillation tower and use the low-temperature gas energy to pre-cool the crude hydrocarbon product.

[0011] Optionally, the device further comprises a water electrolysis system, wherein the water electrolysis system comprises a water electrolysis device, a hydrogen storage tank, an oxygen storage tank, and a compressor;

[0012] The water electrolysis equipment is used to electrolyze water using the electric energy generated by the first energy utilization system to generate hydrogen and oxygen;

[0013] The hydrogen storage tank is used to store the hydrogen;

[0014] The oxygen storage tank is used to store the oxygen;

[0015] The compressor is used to compress the hydrogen output from the hydrogen storage tank and then transport it to the reactor of the third energy utilization system through a pipeline for chemical reaction to generate crude hydrocarbon products.

[0016] Optionally, the secondary energy utilization system further includes a first temperature meter disposed at the outlet of the first heat exchanger.

[0017] Optionally, the three-stage energy utilization system further includes a second temperature meter disposed at the outlet of the second heat exchanger.

[0018] Optionally, the device further comprises a third temperature meter arranged at the inlet of the distillation tower.

[0019] Optionally, the first energy utilization system includes a fourth temperature meter arranged at the steam outlet position.

[0020] Optionally, the tertiary energy utilization system is used to prepare olefins and aromatics, and the tertiary energy utilization system for preparing olefins and the tertiary energy utilization system for preparing aromatics are in parallel, and a diverter is set between the secondary energy utilization system and the tertiary energy utilization system.

[0021] Optionally, the primary energy utilization system comprises a fluid transport pipeline, in which a fluid medium flows; the energy storage device is composed of a single or multiple fixed beds connected in series / parallel;

[0022] The energy supply device is used to collect energy and convert the energy into thermal energy to heat the first energy storage particles filled in the fluidized bed charging device;

[0023] The fluidized bed energy storage device is used to perform heat exchange processing with the first particles and the fluid working medium, and transport the fluid working medium after heat exchange to the fixed bed energy storage device through the fluid transport pipeline;

[0024] The fixed bed energy storage device is used to receive the heated fluid working medium output by the fluidized bed charging device in the heat storage stage, and use the fluid working medium to exchange heat with the second energy storage particles in the fixed bed to store heat energy in the second energy storage particles in the fixed bed, and in the heat release stage, use the heat stored in the second energy storage particles to heat the fluid working medium passing into the fixed bed, and output the heated fluid working medium to the steam power generation device;

[0025] The steam power generation device is used to use the heat carried by the fluid working medium to heat the introduced water to generate steam, and then to generate steam power based on the steam.

[0026] A hydrocarbon preparation method, applied to the above hydrocarbon preparation device, comprises:

[0027] Using the energy utilization system to generate first steam and perform steam power generation to provide electrical energy for the device;

[0028] The first steam is reacted with the gasified material in the gasifier by the two energy utilization systems to generate a first synthesis gas, and the first synthesis gas is cooled by cooling water of the first heat exchanger to obtain a second synthesis gas and a second steam, and the second steam is input into the steam power generation equipment to generate electricity;

[0029] In the three-energy utilization system, crude hydrocarbon products are generated in the reactor based on the second synthesis gas, and the crude hydrocarbon products are cooled by cooling water of the second heat exchanger to obtain the cooled crude hydrocarbon products and the third steam, and the cooled crude hydrocarbon products are input into the distillation tower for purification, and the third steam is input into the steam power generation equipment for power generation.

[0030] The embodiments of the present invention have the following advantages:

[0031] In the embodiment of the present invention, sustainable preparation of hydrocarbons is achieved by setting up a primary energy utilization system, a secondary energy utilization system and a tertiary energy utilization system.

[0032] The first energy utilization system can realize energy storage and release by combining a fluidized bed with a fixed bed, and then generate steam based on thermal energy to provide raw materials for the secondary energy utilization system. Since the reaction in the gasifier is an endothermic reaction, the high-temperature steam generated by the primary energy utilization system can also be used as an energy source to power the reaction. In addition, steam can also be used for steam power generation, and the generated electricity can power the entire hydrocarbon preparation device. At the same time, when the generated first synthesis gas is cooled in the secondary energy utilization system, steam can also be generated, and then steam power generation can be carried out. The tertiary energy utilization system can also generate steam through the second heat exchanger during the cooling process of the crude hydrocarbon product after the reaction, and then steam power generation can be carried out. Therefore, the primary energy utilization system, the secondary energy utilization system and the tertiary energy utilization system can improve the utilization rate of energy and realize the green and sustainable development of hydrocarbons. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the description of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 is a schematic diagram of a hydrocarbon preparation device provided by one embodiment of the present invention;

[0035] Figure 2 This is a flow chart for preparing olefins and aromatics provided by one embodiment of the present invention;

[0036] Figure 3 It is a flow chart of the steps of a method for preparing hydrocarbons provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Reference Figure 1 , showing a schematic diagram of a hydrocarbon preparation device provided by an embodiment of the present invention, the device includes a primary energy utilization system 101, a secondary energy utilization system 102, and a tertiary energy utilization system 103.

[0039] The primary energy utilization system 101 includes energy supply equipment, fluidized bed charging equipment, fixed bed energy storage equipment and steam power generation equipment.

[0040] The energy supply device can provide an energy source for the primary energy utilization system 101. For example, the energy source can be renewable energy such as light energy and wind energy. Taking light energy as an energy source as an example, the energy supply device may include a heliostat and a receiver, wherein the heliostat can automatically adjust the angle according to the change of the sun's position so that the reflected sunlight is focused on the receiver; the receiver transfers the sun's heat to the charging device through an intermediate energy storage medium, and the intermediate energy storage medium includes but is not limited to gas, molten salt, magma, and solid particles.

[0041] In an embodiment of the present invention, the primary energy utilization system 101 may include a pneumatic conveying device, which is configured to provide a fluid medium to the air distribution plate, and the fluid medium can put the solid particles in a high-speed fluidized state.

[0042] In the embodiment of the present invention, the fluidized bed charging device includes a fluidized bed and first energy storage particles filled in the fluidized bed, and the energy supply device heats the first energy storage particles of the fluidized bed charging device to achieve energy transfer, and then uses a fluid working medium to exchange heat with the first energy storage particles and then outputs the fluidized bed. The selection of the first energy storage particles can be determined according to the actual application scenario, and in the embodiment of the present invention, there is no excessive restriction on this.

[0043] In an embodiment of the present invention, the charging device is provided with a high-porosity air distribution plate, a cavity is provided below the air distribution plate, solid particles can be selectively filled in the cavity, the intermediate energy storage medium is evenly distributed, and the air distribution plate can support the solid particles. The solid particles have a wide particle size distribution in the charging device, and the state of the solid particles remains stable under the conditions of 25°C to 3000°C. The charging device enables the internal particles to operate in a dense fluidized bed or a circulating fluidized bed state.

[0044] The fluidized bed charging equipment may include a heating device, which may utilize but is not limited to electric heating devices such as resistors and electromagnetic induction, and may also utilize energy sources including but not limited to wind energy, solar energy, green electricity generated by the system itself and other sources, geothermal energy, industrial waste heat, and other energy sources to heat the internal particles.

[0045] When the energy proportion in the receiver dominates the energy in the energy storage device, the heating device of the fluidized bed charging device, as an auxiliary device, can choose whether to turn on or off; when the energy proportion in the receiver is smaller than the energy in the energy storage device, the receiver, as an auxiliary device, can choose whether to close the receiver pipeline.

[0046] In an embodiment of the present invention, the fixed bed energy storage device can be configured to be filled with second energy storage particles internally. The fixed bed energy storage device can be composed of a single or multiple fixed beds in series / parallel. When the fixed beds are connected in series, the energy storage and release pipeline systems cannot be opened at the same time. When the energy storage devices are connected in parallel, the energy storage and release pipeline systems can be opened at the same time.

[0047] When the fixed bed in the fixed bed energy storage device stores heat, the fluid enters the fixed bed energy storage device from the top and leaves the fixed bed energy storage device from the bottom through the energy storage pipes, and the energy storage pipes are vertically inserted into the fixed bed.

[0048] In an embodiment of the present invention, a fixed bed energy storage device is connected to a steam power generation device, and the steam power generation device may include a cold water pump, a heat exchanger, a steam pressure reducing station, and a steam turbine generator set. Among them, the cold water pump provides cooling water, the heat exchanger is used to realize the heat exchange between cooling water and the fluid working medium, the steam pressure reducing station is used to reduce the pressure of the generated steam, and the steam turbine generator set is used to use steam to realize power generation. Among them, the steam generated by the fixed bed energy storage device can be used as a reaction raw material and energy source of the secondary energy utilization system 102.

[0049] The secondary energy utilization system 102 in the embodiment of the present invention includes a gasifier containing materials to be gasified and a first heat exchanger. The gasifier can be used for chemical reactions. Specifically, the gasifier may include a material bin and a heating bin. The material bin and the heating bin are configured as an integrated unit and connected by a gate valve in the middle, and the gate valve is used to control the falling speed of the material. The raw materials of the material bin include but are not limited to coal, biomass, domestic garbage, and solid waste; the gasifier includes but is not limited to any one of a coal gasifier, a supercritical water gasifier, and a plasma gasifier.

[0050] The first heat exchanger in the secondary energy utilization system 102 is connected to the outlet of the reactor and is used to cool the first synthesis gas at the outlet.

[0051] The three-stage energy utilization system 103 in the embodiment of the present invention may include a reactor for preparing hydrocarbons, a distillation tower, and a second heat exchanger.

[0052] The reactor is used for chemical reaction of various raw materials to prepare crude hydrocarbon products, the distillation tower is used for purifying the required hydrocarbons from the crude hydrocarbon products, and the second heat exchanger is used for cooling the crude hydrocarbon products input into the distillation tower.

[0053] Among them, the functions of each part of the hydrocarbon preparation device are introduced as follows:

[0054] The primary energy utilization system 101 is used to store heat energy in the fixed bed energy storage device through the energy supply device and the fluidized bed charging device during the heat storage stage, and to heat cooling water to generate first steam through the energy storage device and the steam power generation device during the heat release stage, and to use the first steam to generate steam power to provide electrical energy for the device;

[0055] The secondary energy utilization system 102 is used to react the first steam as a raw material with the gasified material in the gasifier to generate the first synthesis gas, and use the cooling water of the first heat exchanger to cool the first synthesis gas to obtain the second synthesis gas and the second steam, and the second steam is input into the steam power generation equipment to generate steam power;

[0056] The tertiary energy utilization system 103 is used to generate crude hydrocarbon products in the reactor based on the second synthesis gas, and cool the crude hydrocarbon products by cooling water of the second heat exchanger to obtain the cooled crude hydrocarbon products and the third steam, and input the cooled crude hydrocarbon products into the distillation tower for purification, and input the third steam into the steam power generation equipment for power generation.

[0057] In one embodiment of the present invention, the primary energy utilization system 101 includes a fluid transport pipeline, in which a fluid working medium flows; the fixed bed energy storage device is composed of a single or multiple fixed beds connected in series / parallel.

[0058] The energy supply device is used to collect energy and convert the energy into thermal energy to heat the first energy storage particles filled in the fluidized bed charging device.

[0059] For example, solar energy is collected by heliostats and then converted into thermal energy by photothermal technology, so that the thermal energy can be used to heat the first energy storage particles.

[0060] The fluidized bed charging device is used to perform heat exchange processing between the first particles and the fluid working medium, and transport the fluid working medium after heat exchange to the fixed bed energy storage device through a fluid transport pipeline.

[0061] The fixed bed energy storage device is used to receive the heated fluid working medium output by the fluidized bed charging device in the heat storage stage, and use the fluid working medium to exchange heat with the second energy storage particles in the fixed bed to store heat energy in the second energy storage particles of the fixed bed. In the heat release stage, the heat stored in the second energy storage particles is used to heat the fluid working medium passing into the fixed bed, and the heated fluid working medium is output to the steam power generation device;

[0062] The steam power generation device is used to use the heat carried by the fluid working medium to heat the incoming water to generate steam, and then generate steam power based on the steam.

[0063] In one embodiment of the present invention, the device also includes a water electrolysis system, which includes a water electrolysis device, a hydrogen storage tank, an oxygen storage tank, and a compressor; wherein the water electrolysis device is used to use the electric energy generated by the first energy utilization system to electrolyze water to generate hydrogen and oxygen; the hydrogen storage tank is used to store hydrogen; the oxygen storage tank is used to store oxygen; the compressor is used to compress the hydrogen output by the hydrogen storage tank and then transport it through a pipeline to the reactor of the third energy utilization system for chemical reaction to generate crude hydrocarbon products.

[0064] In the embodiment of the present invention, high-value hydrogen and oxygen can be generated by combining water electrolysis technology, wherein hydrogen can be used as a reaction raw material of a three-stage energy utilization system and react with the second synthesis gas in a reactor to generate crude hydrocarbon products.

[0065] In one embodiment of the present invention, the device further comprises a third heat exchanger connected to the top of the distillation tower, and the third heat exchanger is used to collect the low-temperature gas energy leaving the top of the distillation tower, and use the low-temperature gas energy to pre-cool the crude hydrocarbon product. By setting the third heat exchanger, the cold energy of the low-temperature gas at the top of the olefin distillation tower can be recovered, and then used to pre-cool the crude hydrocarbon product, thereby achieving efficient application of energy.

[0066] In the embodiment of the present invention, a temperature meter may be provided in the hydrocarbon production device to monitor the temperature at various locations in the device and control the hydrocarbon production device to stably produce hydrocarbons.

[0067] In one example, the secondary energy utilization system further includes a first thermometer disposed at the outlet of the first heat exchanger. The first thermometer is used to monitor the temperature change of the second synthesis gas. In practical applications, it is necessary to ensure that the temperature of the second synthesis gas is not lower than the first set temperature. The first set temperature can be set according to the actual scenario. The first set temperature is required to ensure that the second synthesis gas can continue to react in the tertiary energy utilization system.

[0068] In another example, the three-stage energy utilization system also includes a second thermometer arranged at the outlet of the second heat exchanger, and the second thermometer is used to monitor the temperature of the hydrocarbon-based crude product at the outlet of the second heat exchanger to ensure that the temperature of the hydrocarbon-based crude product is not lower than a second preset temperature. The second set temperature can be set according to the actual scenario, and the second set temperature needs to ensure that the hydrocarbon-based crude product can continue to be efficiently purified in the distillation tower.

[0069] In another example, the device further includes a third thermometer disposed at the inlet of the distillation tower. The third thermometer is used to monitor the temperature of the crude hydrocarbon product at the inlet of the distillation tower to ensure that the temperature of the crude hydrocarbon product is not lower than a third preset temperature. The third set temperature can be set according to the actual scenario, and the third set temperature needs to ensure that the crude hydrocarbon product can continue to be efficiently purified in the distillation tower.

[0070] In another example, the first energy utilization system includes a fourth thermometer disposed at the steam outlet. The fourth thermometer is used to monitor the temperature of the steam generated by the first energy utilization system. The fourth thermometer monitors the temperature of the high-temperature water vapor leaving the steam power generation equipment in real time to ensure that the temperature is not lower than a fourth set temperature. The fourth set temperature can be set according to the actual scenario. The fourth set temperature needs to ensure that the steam can continue to react in the gasifier to generate the first synthesis gas. Among them, in the embodiment of the present invention, ultra-high temperature water steam is used for power generation, and the steam temperature can be higher than 1100°C.

[0071] In one embodiment of the present invention, a three-stage energy utilization system is used to prepare olefins and aromatics. The three-stage energy utilization system for preparing olefins and the three-stage energy utilization system for preparing aromatics are connected in parallel, and a diverter is set between the secondary energy utilization system and the tertiary energy utilization system.

[0072] By setting a splitter, the second synthesizer generated in the secondary energy utilization system can be divided into two streams to respectively realize olefin production and aromatics production.

[0073] In an embodiment of the present invention, in a secondary energy utilization system, high-temperature synthesis gas can be prepared in a gasifier by high-temperature water vapor and coal / biomass. The reaction temperature of the gasifier can be around 1000°C. The energy of the high-temperature synthesis gas leaving the gasifier can be transferred to water vapor, thereby realizing power generation, and the cooled medium-temperature synthesis gas can be used to produce aromatics and olefins.

[0074] In an embodiment of the present invention, the first energy utilization system can realize energy storage and release by combining a fluidized bed with a fixed bed, and then generate steam based on thermal energy to provide raw materials for the secondary energy utilization system. Since the reaction in the gasifier is an endothermic reaction, the high-temperature steam generated by the primary energy utilization system can also be used as an energy source to power the reaction. In addition, the steam can also be used for steam power generation, and the generated electric energy can power the entire hydrocarbon preparation device. At the same time, when the generated first synthesis gas is cooled in the secondary energy utilization system, steam can also be generated, and steam power generation can be carried out. The tertiary energy utilization system can also generate steam through the second heat exchanger during the cooling process of the crude hydrocarbon product after the reaction, and then steam power generation can be carried out. Therefore, the primary energy utilization system, the secondary energy utilization system and the tertiary energy utilization system can improve the utilization rate of energy and realize the green and sustainable development of hydrocarbons.

[0075] like Figure 2 As shown, it is a schematic diagram of a preparation device for olefins and aromatics in an embodiment of the present invention; the preparation device includes a primary energy utilization system, a secondary energy utilization system, a tertiary energy utilization system, and a quaternary energy utilization system.

[0076] The primary energy utilization system includes heliostats, receivers, charging equipment (i.e., fluidized bed charging equipment), energy storage equipment (fixed bed energy storage equipment), pneumatic conveying equipment, steam power generation equipment, temperature meter 1 (i.e., the fourth temperature meter), and fluid working medium arranged in the energy storage pipeline. Among them, the steam power generation device includes a heat exchanger 1, a temperature steam pressure reducing station, and a steam turbine generator set.

[0077] The secondary energy utilization system includes a gasifier, a heat exchanger 4 (ie, a first heat exchanger), and a temperature meter 4 (ie, a first temperature meter).

[0078] The three-stage energy utilization system includes a splitter, a synthesis gas to olefins system and a synthesis gas to aromatics system; wherein the synthesis gas to olefins system includes an olefin reactor, a heat exchanger 2 (i.e., the second heat exchanger), a temperature meter 2 (i.e., the second temperature meter), an olefin distillation tower, and an olefin storage tank; the synthesis gas to aromatics system includes an aromatics reactor, a heat exchanger 3 (i.e., the second heat exchanger), a temperature meter 3 (i.e., the second temperature meter), an aromatics distillation tower, and an aromatics storage tank.

[0079] The four-stage energy utilization system includes the heat exchanger 5 and the temperature meter 5 .

[0080] The water electrolysis hydrogen production system includes a water electrolysis device, a hydrogen storage tank, an oxygen storage tank, and a compressor.

[0081] Based on the above structure, the process of synergistic and sustainable production of olefins and aromatics between the various parts is as follows:

[0082] (1) The primary energy utilization system generates high-temperature steam based on renewable energy and uses the steam to generate electricity:

[0083] The heliostat can automatically adjust its angle according to the change of the sun's position so that the sunlight it reflects is focused on the receiver; the receiver transfers the sun's heat to the charging device through the fluid working medium, and then the charging device transports the heat to the separator for filtering by the first energy storage particles, and then transports the fluid working medium to the energy storage device, and stores the thermal energy in the energy storage device through heat exchange between the fluid working medium and the second energy storage particles filled with the energy storage device.

[0084] A low-temperature fluid is introduced into the energy storage device, and after heating, the heated fluid is output to the heater 1. After the cold water pump is started, the cooling water introduced into the heater exchanges heat with the fluid, thereby generating high-temperature steam, which is then partially transported to the secondary energy utilization system, and partially transported to the steam decompression station for decompression treatment, and then the steam turbine generator set is used for steam power generation during transportation. Among them, the temperature of the steam power generation process in the primary energy utilization system is higher than 1100℃.

[0085] (2) Secondary energy utilization system generates synthesis gas:

[0086] The high-temperature steam is transported as raw material and energy to the gasifier to react chemically with other raw materials. The reaction is an endothermic reaction with a temperature of about 1000°C. After the reaction, a high-temperature synthesis gas (i.e., the first synthesis gas) is generated. The high-temperature synthesis gas is transported to the heat exchanger 4 for cooling to obtain a medium-temperature synthesis gas (i.e., the second synthesis gas). The medium-temperature synthesis gas is transported to the tertiary energy utilization system.

[0087] During the cooling process, the cooling water can be converted into steam, which can then be used to generate steam using steam power generation equipment.

[0088] (3) Hydrogen production by water electrolysis system:

[0089] The electric energy of the primary energy utilization system is used to electrolyze water to obtain hydrogen, which is then transported to a compressor for compression and then transported as a raw material to a tertiary energy utilization system.

[0090] (4) The three-stage energy utilization system uses a flow divider to separate the medium-temperature synthesis gas and hydrogen, and the two raw materials are separated into an olefin reactor and an aromatics reactor for chemical reaction to obtain crude olefin products and crude aromatics products. Among them, the production of aromatics and olefins from synthesis gas is a highly exothermic reaction; the temperature is 400℃~500℃. The crude olefin product is cooled by cooling water introduced by heat exchanger 2, and then transported to an olefin distillation tower for distillation to obtain olefins, which are stored in an olefin tank. The crude aromatics product is cooled by cooling water introduced by heat exchanger 3, and then transported to an aromatics distillation tower for distillation to obtain aromatics, which are stored in an aromatics tank.

[0091] During the cooling process, the heating of cooling water will generate steam, which can then be used to generate steam power.

[0092] (5) The four-energy energy utilization system can use the heat exchanger 5 to recover the low-temperature gas energy leaving the top of the olefin distillation tower, and can use this energy to pre-cool the olefin tail gas to be distilled (i.e., the cooled olefin crude product).

[0093] Reference Figure 3 , showing a flow chart of steps of a hydrocarbon-based method provided by an embodiment of the present invention, which is applied to a hydrocarbon-based generation device, the device includes a primary energy utilization system, a secondary energy utilization system and a tertiary energy utilization system, the primary energy utilization system includes energy supply equipment, fluidized bed energy charging equipment, fixed bed energy storage equipment and steam power generation equipment, the secondary energy utilization system includes a gasifier containing materials to be gasified and a first heat exchanger, and the tertiary energy utilization system includes a reactor for preparing hydrocarbons, a distillation tower, and a second heat exchanger;

[0094] The primary energy utilization system is used to store heat energy in the fixed bed energy storage device through the energy supply device and the fluidized bed charging device during the heat storage stage, and to heat cooling water to generate first steam through the energy storage device and the steam power generation device during the heat release stage, and to use the first steam to generate steam power to provide electrical energy for the device;

[0095] The secondary energy utilization system is used to react the first steam as a raw material with the gasified material in the gasifier to generate the first synthesis gas, and use the cooling water of the first heat exchanger to cool the first synthesis gas to obtain the second synthesis gas and the second steam, and the second steam is input into the steam power generation equipment to generate steam power;

[0096] The three-stage energy utilization system is used to generate crude hydrocarbon products in the reactor based on the second synthesis gas, and cool the crude hydrocarbon products by cooling water of the second heat exchanger to obtain the cooled crude hydrocarbon products and the third steam, and input the cooled crude hydrocarbon products into the distillation tower for purification, and input the third steam into the steam power generation equipment for power generation.

[0097] The hydrocarbon group generating method based on the hydrocarbon group generating device may specifically include the following steps:

[0098] Step 301, using a primary energy utilization system to generate first steam and perform steam power generation to provide electrical energy for the device;

[0099] Step 302, using a two-stage energy utilization system to react the first steam with the gasified material in the gasifier to generate a first synthesis gas, and using cooling water from a first heat exchanger to cool the first synthesis gas to obtain a second synthesis gas and a second steam, and the second steam is input into a steam power generation device to generate steam power;

[0100] Step 303, in the three-stage energy utilization system, crude hydrocarbon products are generated in the reactor based on the second synthesis gas, and the crude hydrocarbon products are cooled by cooling water of the second heat exchanger to obtain the cooled crude hydrocarbon products and the third steam, and the cooled crude hydrocarbon products are input into the distillation tower for purification, and the third steam is input into the steam power generation equipment for power generation.

[0101] In the embodiment of the present invention, sustainable preparation of hydrocarbons is achieved by setting up a primary energy utilization system, a secondary energy utilization system and a tertiary energy utilization system.

[0102] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0103] An embodiment of the present invention further provides an electronic device, which may include a processor, a memory, and a computer program stored in the memory and capable of running on the processor, and when the computer program is executed by the processor, the above hydrocarbon preparation method is implemented.

[0104] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above hydrocarbon preparation method is implemented.

[0105] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0106] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0107] Those skilled in the art will appreciate that the embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0108] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram and the combination of the processes and / or blocks in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0109] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0110] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable terminal device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0111] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0112] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0113] The above is a detailed introduction to a hydrocarbon-based preparation method and device. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A hydrocarbon production device, characterized in that: The device includes a primary energy utilization system, a secondary energy utilization system and a tertiary energy utilization system. The primary energy utilization system includes energy supply equipment, fluidized bed energy charging equipment, fixed bed energy storage equipment and steam power generation equipment. The secondary energy utilization system includes a gasifier containing materials to be gasified and a first heat exchanger. The tertiary energy utilization system includes a reactor for preparing hydrocarbons, a distillation tower and a second heat exchanger. The first energy utilization system is used to store heat energy in the fixed bed energy storage device through the energy supply device and the fluidized bed charging device during the heat storage stage, and to heat cooling water to generate first steam through the energy storage device and the steam power generation device using heat energy during the heat release stage, and to generate steam power using the first steam to provide electrical energy for the device; The second energy utilization system is used to react the first steam as a raw material with the gasified material in the gasifier to generate a first synthesis gas, and to cool the first synthesis gas using cooling water from the first heat exchanger to obtain a second synthesis gas and a second steam, and the second steam is input into the steam power generation equipment to generate steam power; The third energy utilization system is used to generate crude hydrocarbon products in the reactor based on the second synthesis gas, and cool the crude hydrocarbon products by cooling water of the second heat exchanger to obtain the cooled crude hydrocarbon products and third steam, and input the cooled crude hydrocarbon products into the distillation tower for purification, and input the third steam into the steam power generation equipment for steam power generation.

2. The device according to claim 1, characterized in that The device also includes a third heat exchanger connected to the top of the distillation tower, and the third heat exchanger is used to collect low-temperature gas energy leaving the top of the distillation tower and use the low-temperature gas energy to pre-cool the crude hydrocarbon product.

3. The device according to claim 1, characterized in that The device also includes a water electrolysis system, which includes a water electrolysis device, a hydrogen storage tank, an oxygen storage tank, and a compressor; The water electrolysis equipment is used to electrolyze water using the electric energy generated by the first energy utilization system to generate hydrogen and oxygen; The hydrogen storage tank is used to store the hydrogen; The oxygen storage tank is used to store the oxygen; The compressor is used to compress the hydrogen output from the hydrogen storage tank and then transport it to the reactor of the third energy utilization system through a pipeline for chemical reaction to generate crude hydrocarbon products.

4. The device according to any one of claims 1 to 3, characterized in that The secondary energy utilization system also includes a first temperature meter arranged at the outlet of the first heat exchanger.

5. The device according to claim 1, characterized in that The three-stage energy utilization system also includes a second temperature meter arranged at the outlet of the second heat exchanger.

6. The device according to any one of claims 1 to 3, characterized in that The device also includes a third temperature meter arranged at the inlet of the distillation tower.

7. The device according to any one of claims 1 to 3, characterized in that The first energy utilization system includes a fourth temperature meter arranged at the steam outlet position.

8. The device according to any one of claims 1 to 3, characterized in that The tertiary energy utilization system is used to prepare olefins and aromatics. The tertiary energy utilization system for preparing olefins and the tertiary energy utilization system for preparing aromatics are in parallel, and a diverter is arranged between the secondary energy utilization system and the tertiary energy utilization system.

9. The device according to any one of claims 1 to 3, characterized in that The primary energy utilization system comprises a fluid transport pipeline, in which a fluid working medium flows; the fixed bed energy storage device is composed of a single or multiple fixed beds connected in series / parallel; The energy supply device is used to collect energy and convert the energy into thermal energy to heat the first energy storage particles filled in the fluidized bed charging device; The fluidized bed energy storage device is used to perform heat exchange processing with the first particles and the fluid working medium, and transport the fluid working medium after heat exchange to the fixed bed energy storage device through the fluid transport pipeline; The fixed bed energy storage device is used to receive the heated fluid working medium output by the fluidized bed charging device in the heat storage stage, and use the fluid working medium to exchange heat with the second energy storage particles in the fixed bed to store heat energy in the second energy storage particles in the fixed bed, and in the heat release stage, use the heat stored in the second energy storage particles to heat the fluid working medium passing into the fixed bed, and output the heated fluid working medium to the steam power generation device; The steam power generation device is used to use the heat carried by the fluid working medium to heat the introduced water to generate steam, and then generate electricity based on the steam.

10. A method for preparing hydrocarbons, characterized in that: Applied to a hydrocarbon production device according to any one of claims 1 to 9, the method comprises: The primary energy utilization system is used to generate first steam and perform steam power generation to provide electrical energy for the device; The second-stage energy utilization system is used to react the first steam with the gasified material in the gasifier to generate a first synthesis gas, and the cooling water of the first heat exchanger is used to cool the first synthesis gas to obtain a second synthesis gas and a second steam, and the second steam is input into the steam power generation equipment to generate electricity; In the three-stage energy utilization system, crude hydrocarbon products are generated in the reactor based on the second synthesis gas, and the crude hydrocarbon products are cooled by cooling water of the second heat exchanger to obtain the cooled crude hydrocarbon products and the third steam, and the cooled crude hydrocarbon products are input into the distillation tower for purification, and the third steam is input into the steam power generation equipment for power generation.

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