Modular multifunctional coal pyrolysis device

Abstract

The utility model discloses a modular multifunctional coal pyrolysis device. The modular multifunctional coal pyrolysis device comprises a gas module, a gas activation module, a pyrolysis module, a catalysis module and a receiving module, wherein the gas module comprises a gas pipeline and a reactor end socket; the gas activation module comprises a heating furnace and a first reactor; the pyrolysis module comprises a heating furnace, a reactor II, a reactor seal head and a cooling coil; the catalysis module comprises a heating furnace and a third reactor; the receiving module comprises a refrigerator, a coal tar cooler, a coal tar collector and a pyrolysis dry gas conveying pipe. Compared with the prior art, other types of pulverized coal pyrolysis experiments such as gas activation and pulverized coal pyrolysis coupling research, gas activation and pulverized coal catalytic pyrolysis coupling research, gas activation and pulverized coal rapid pyrolysis coupling research and gas activation and pulverized coal catalytic rapid pyrolysis coupling research can be realized on the same set of device; the flexibility and the operation stability of the coal pyrolysis experimental device are improved, so that the conversion rate of pulverized coal is improved, and the problem that semicoke and a catalyst are difficult to separate is solved.

Description

Technical Field

[0001] The utility model relates to the fields of rapid pyrolysis and activation / catalytic pyrolysis, and in particular to a modular multifunctional coal pyrolysis device. Background Art

[0002] Using coal as a raw material to produce chemical products and coal-based materials is an important direction for the clean and efficient utilization of coal, and is also a key measure for achieving the high-end, diversified, and low-carbon development of the coal chemical industry. Coal pyrolysis technology, as a simple thermochemical conversion method, can convert coal into pyrolysis gas, coal tar, and semi-coke. Pyrolysis gas is rich in carbon monoxide and hydrogen and can be used as a feedstock for Fischer-Tropsch synthesis. Coal tar is rich in olefins, aromatic hydrocarbons, and phenols and is a treasure trove of chemical raw materials. Semi-coke has a high carbon content and can be further modified to be used as a functional carbon material. Therefore, coal pyrolysis technology is an important way to clean and efficiently utilize coal, and is one of the simplest and most economical methods to achieve comprehensive coal utilization.

[0003] At present, most laboratory research uses electric heating equipment, the most common of which are thermogravimetric analyzers, fixed-bed Gelkin low-temperature distillation analyzers, and crackers. These devices can only realize a limited number of coal pyrolysis reaction types. When conducting pyrolysis reactions of different types of coal, different devices need to be designed and processed, which affects the investigation of pyrolysis process parameters. At the same time, it is difficult to separate the coal pyrolysis product semi-coke from activators, catalysts, etc., which affects the analysis of pyrolysis products. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a modular multifunctional coal pyrolysis device, which can combine different modules according to reaction conditions to perform different coal pyrolysis reactions when in use.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a modular multifunctional coal pyrolysis device, comprising:

[0007] A gas module, comprising a gas pipeline and a reactor head installed on the gas pipeline;

[0008] The gas activation module includes a No. 1 heating furnace, a No. 1 reactor disposed in the No. 1 heating furnace, and a reactor tray disposed in the No. 1 reactor;

[0009] The pyrolysis module includes a No. 2 heating furnace, a No. 2 reactor disposed in the No. 2 heating furnace, and a reactor tray disposed in the No. 2 reactor;

[0010] The catalytic module includes a No. 3 heating furnace, a No. 3 reactor disposed in the heating furnace, and a reactor tray disposed in the No. 3 reactor;

[0011] The receiving module includes a refrigerator, a coal tar cooling pipe arranged in the refrigerator, a coal tar collector arranged at the bottom end of the coal tar cooling pipe, and a pyrolysis dry gas conveying pipe connected to the coal tar collector, and a pyrolysis dry gas outlet device;

[0012] The gas pipeline, reactor No. 1, reactor No. 2, reactor No. 3 and coal tar cooling pipe have the same diameter; when in use, the gas pipeline is connected to reactor No. 2 and coal tar cooling pipe in sequence; or the gas pipeline is connected to reactor No. 2 and coal tar cooling pipe No. 3 in sequence; or the gas pipeline is connected to reactor No. 1, reactor No. 2 and coal tar cooling pipe in sequence; or the gas pipeline, reactor No. 1, reactor No. 2, reactor No. 3 and coal tar cooling pipe are connected in sequence.

[0013] Preferably, the gas pipeline in the gas module is a three-pronged structure, one end of which is a gas inlet, one end is a gas outlet, and one end is a top with a reactor head.

[0014] Preferably, the gas is passed through a flow meter to the gas line, said gas being hydrogen, nitrogen or methane.

[0015] Preferably, the pyrolysis module is also provided with an inclined tube, the lower end of which is connected to the body of the No. 2 reactor through an interface, the interface being located in the middle of the No. 2 reactor body, and the inclined tube forming an acute angle with the No. 2 reactor upstream of the interface; at least a portion of the inclined tube is located outside the heating furnace, and a coal powder support tray is provided on the external inclined tube pipeline; the reactor tray is arranged on the downstream pipeline of the interface.

[0016] Further preferably, at least a portion of the pipeline of the inclined tube located outside the No. 2 heating furnace is arranged in the cooler, and the telescopic pulverized coal support tray is located in the No. 2 cooler.

[0017] Still further preferably, the telescopic pulverized coal support tray is a telescopic tray.

[0018] Still further preferably, a No. 2 reactor head is provided on the top of the inclined tube.

[0019] Still further preferably, the reactor head and the No. 2 reaction tube head are configured to be detachable.

[0020] Preferably, an internal temperature thermocouple is further included, and the internal temperature thermocouple is placed into the No. 1 reactor, the No. 2 reactor or the No. 3 reactor through the seal of the reactor head.

[0021] Preferably, the outlet of the gas pipeline, the inlet and outlet of the No. 1 reactor, the inlet and outlet of the No. 2 reactor, the inlet and outlet of the No. 3 reactor and the air inlet of the coal tar cooling pipe are provided with threads, and the pipelines are connected by threads.

[0022] The modules in the device can be combined arbitrarily according to different experimental conditions and processes.

[0023] The different modules of the pulverized coal pyrolysis experiment are connected in the following ways:

[0024] (1) Low-temperature pyrolysis experiment of pulverized coal, using a combination of gas module, pyrolysis module and receiving module;

[0025] (2) Pulverized coal catalytic pyrolysis experiment, using a combination of gas module, pyrolysis module, catalytic module, and receiving module;

[0026] (3) The gas activation and pulverized coal pyrolysis coupling experiment uses a combination of gas module, gas activation module, pyrolysis module, and receiving module;

[0027] (4) The experiment of coupling gas activation and pulverized coal catalytic pyrolysis uses a combination of gas module, gas activation module, pyrolysis module, catalytic module and receiving module;

[0028] The pulverized coal rapid pyrolysis experiment is connected in the following ways:

[0029] (1) Pulverized coal rapid pyrolysis experiment, using a combination of gas module, pyrolysis module, and catalytic receiving module;

[0030] (2) Pulverized coal catalytic rapid pyrolysis experiment, using a combination of gas module, pyrolysis module, catalytic module, and receiving module;

[0031] (3) The experiment of coupling gas activation and rapid pyrolysis of pulverized coal was conducted using a combination of a gas module, a gas activation module, a pyrolysis module, and a receiving module;

[0032] (4) The experiment of coupling gas activation and pulverized coal catalytic pyrolysis uses a combination of gas module, gas activation module, pyrolysis module, catalytic module and receiving module.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The present invention proposes a multifunctional coal pyrolysis device containing multiple reaction modules, including a gas module, a gas activation module, a pyrolysis module, a catalytic module and a receiving module. The gas pipeline, the No. 1 reactor, the No. 2 reactor, the No. 3 reactor and the coal tar cooling pipe have equal pipe diameters. Different modules can be combined when in use. The device can realize the coupling of gas activation and coal powder pyrolysis, catalytic pyrolysis reaction, gas activation and catalytic pyrolysis coupling, coal powder rapid pyrolysis, and gas activation and catalytic rapid pyrolysis coupling, which can improve the coal powder conversion rate. Compared with the existing coal pyrolysis device, it realizes the integration of multiple reaction types in the same device. At the same time, because the gas activation module, catalytic module and pyrolysis module are independently set in the device, the activator, catalyst and coal will not be mixed during the reaction, which facilitates the separation of the coal pyrolysis product semi-coke from the activator and catalyst; the temperature parameters of each different module can also be set separately, which helps to realize the research and analysis of the influence of different catalytic and activation temperatures on the coal pyrolysis reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a diagram of the gas module of the present invention, including a gas inlet 101, a gas pipeline 102, a reactor head 103, and a gas outlet 104;

[0036] Figure 2 This is a diagram of a gas catalytic module of the present invention, wherein a No. 1 heating furnace 201, a No. 1 reactor 202, a No. 1 reactor inlet 203, a No. 1 reactor tray 205, and a No. 1 reactor outlet 204;

[0037] Figure 3 A diagram of the pyrolysis module of the present invention, including a No. 2 heating furnace 301, a No. 2 reactor 302, a No. 2 reactor inlet 303, a No. 2 reactor tray 305, a No. 2 reactor outlet 304, an inclined pipe 306, a No. 2 reactor tube cover 307, a telescopic pulverized coal support tray 308, and a No. 2 cooler 309;

[0038] Figure 4 A diagram of the catalytic module of the present invention, including a No. 3 heating furnace 401, a No. 3 reactor 402, a No. 3 reactor inlet 403, a No. 3 reactor tray 405, and a No. 3 reactor outlet 404;

[0039] Figure 5 This is a diagram of the receiving module of the present invention, wherein a refrigerator 501, a coal tar cooling pipe 502, a coal tar cooling pipe inlet 503, a coal tar cooling pipe outlet reducer 504, a coal tar collector 505, a pyrolysis dry gas delivery pipe 506, and a pyrolysis dry gas delivery pipe outlet 507 are provided;

[0040] Figure 6 This is a schematic diagram of the connection of each module of the utility model. DETAILED DESCRIPTION

[0041] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0043] The present invention is described in further detail below with reference to the accompanying drawings:

[0044] refer to Figures 1 to 5 The modular multifunctional coal pyrolysis device of the present invention includes a gas module, a gas activation module, a pyrolysis module, a catalytic module and a receiving module, wherein:

[0045] Gas modules such as Figure 1 As shown, it comprises: a three-pronged structure, including a gas inlet 101, a gas pipeline 102, a reactor head 103, and a gas outlet 104;

[0046] Gas activation Figure 2 As shown, it includes: a No. 1 heating furnace 201, a No. 1 reactor 202, a No. 1 reactor inlet 203, a No. 1 reactor tray 205, and a No. 1 reactor outlet 204;

[0047] Pyrolysis module such as Figure 3 As shown, among them: No. 2 heating furnace 301, No. 2 reactor 302, No. 2 reactor inlet 303, No. 2 reactor tray 305, No. 2 reactor outlet 304, inclined pipe 306, No. 2 reaction tube head 307, telescopic pulverized coal support tray 308, No. 2 cooler 309;

[0048] Catalytic modules such as Figure 4As shown: No. 3 heating furnace 401, No. 3 reactor 402, No. 3 reactor inlet 403, No. 3 reactor tray 405, No. 3 reactor outlet 404;

[0049] The receiving module is as follows Figure 5 As shown: a refrigerator 501, a coal tar cooling pipe 502, a coal tar cooling pipe inlet 503, a coal tar cooling pipe outlet reducer 504, a coal tar collector 505, a pyrolysis dry gas delivery pipe 506, and a pyrolysis dry gas delivery pipe outlet 507.

[0050] exist Figures 1 to 5 Schematic diagrams of the structures according to the disclosed embodiments of the present invention are shown in the figures. These figures are not drawn to scale; for the purpose of clarity, some details are exaggerated and some details may be omitted. The shapes of the various regions and layers shown in the figures and their relative sizes and positions are merely exemplary and may deviate in practice due to manufacturing tolerances or technical limitations. Those skilled in the art may design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0051] The specific working process of this utility model is:

[0052] Pulverized coal pyrolysis experiment:

[0053] (1) When conducting the low-temperature pyrolysis experiment of pulverized coal, a combination of a gas module, a pyrolysis module, and a receiving module is used;

[0054] Before the experiment, pulverized coal was placed on the No. 2 reactor tray 305. The No. 2 reactor inlet 303 was then tightened to the gas outlet 104. Finally, the No. 2 reactor outlet 304 was tightened to the coal tar cooling pipe inlet 503. During the experiment, an internal temperature thermocouple was inserted from the reactor head 103 into the No. 2 reactor tray 305, based on the current length of the experimental reactor. The reaction temperature was measured, and the No. 2 reactor 302 was heated by the No. 2 heating furnace 301. Gas entered the No. 2 reactor 302 through the gas inlet 101. The volatiles generated after pyrolysis were transported through the No. 2 reactor outlet 304 to the refrigerator 501 for cooling. The coal tar was collected in the coal tar collector 505, and the pyrolysis dry gas was discharged downstream through the pyrolysis dry gas delivery pipe 506.

[0055] (2) Conducting pulverized coal catalytic pyrolysis experiments, using a combination of a gas module, a pyrolysis module, a catalytic module, and a receiving module;

[0056] Before the experiment, pulverized coal was placed on the No. 2 reactor tray 305, and the catalyst was placed on the No. 3 reactor tray 405. The No. 2 reactor inlet 303 was then screwed to the gas outlet 104, the No. 2 reactor outlet 304 was screwed to the No. 3 reactor inlet 403, and the No. 3 reactor outlet 404 was screwed to the coal tar cooling pipe inlet 503. During the experiment, an internal temperature thermocouple, based on the current length of the experimental reactor, was inserted from the reactor head 103 of the gas module into the No. 2 reactor tray 305 to measure the reaction temperature. The No. 2 heating furnace 301 heated the No. 2 reactor 302, while the No. 3 heating furnace 401 heated the No. 3 reactor 402. The gas enters the No. 2 reactor 302 through the gas inlet 101, and the volatile matter generated after pyrolysis is sent from the No. 2 reactor outlet 304 to the No. 3 reactor 402 for catalytic reaction. The product after the catalytic reaction is sent to the refrigerator 501 through the No. 3 reactor outlet 404 for cooling. The coal tar will be collected in the coal tar collector 505, and the pyrolysis dry gas will be discharged downstream through the pyrolysis dry gas delivery pipe 506.

[0057] (3) When conducting the gas activation and pulverized coal pyrolysis coupling experiment, a combination of gas module, gas activation module, pyrolysis module and receiving module is used;

[0058] Before the experiment, pulverized coal was placed on the No. 2 reactor tray 305, and the activator was placed on the No. 1 reactor tray 205. The No. 1 reactor inlet 203 was then tightened to the gas outlet 104 of the gas pipeline 102, the No. 1 reactor outlet 204 was tightened to the No. 2 reactor inlet 303, and the No. 2 reactor outlet 304 was tightened to the coal tar cooling pipe inlet 503. During the experiment, an internal temperature thermocouple was inserted from the reactor head 103 of the gas module into the No. 2 reactor tray 305, based on the current length of the experimental reactor, to measure the reaction temperature. The No. 2 reactor 302 was heated by the No. 2 heating furnace 301, and the No. 1 reactor 202 was heated by the No. 1 heating furnace 201. The gas enters the No. 1 reactor 202 through the gas inlet 101 for activation reaction. The activated gas enters the No. 2 reactor 302 through the No. 2 reactor inlet 303 for coal pyrolysis reaction. The volatile matter generated after pyrolysis is cooled in the refrigerator 501 through the No. 2 reactor outlet 304. The coal tar will be collected in the coal tar collector 505, and the pyrolysis dry gas will be delivered to the downstream through the pyrolysis dry gas delivery pipe 506.

[0059] (4) When conducting the gas activation and coal powder catalytic pyrolysis coupling experiment, a combination of gas module, gas activation module, pyrolysis module, catalytic module and receiving module is used;

[0060] Before the experiment, the coal powder was placed on the No. 2 reactor tray 305, the activator was placed on the No. 1 reactor tray 205, and the catalyst was placed on the No. 3 reactor tray 405. The No. 1 reactor inlet 203 was tightened to the gas outlet 104, the No. 1 reactor outlet 204 was tightened to the No. 2 reactor inlet 303, the No. 2 reactor outlet 304 was tightened to the No. 3 reactor inlet 403, and the No. 3 reactor outlet 404 was tightened to the coal tar cooling pipe inlet 503. During the experiment, the internal temperature thermocouple is inserted from the reactor head 103 of the gas module into the No. 2 reactor tray 305 according to the length of the experimental reactor at that time to measure the reaction temperature. The No. 2 reactor 302 is heated by the No. 2 heating furnace 301, the No. 1 reactor 202 is heated by the No. 1 heating furnace 201, and the No. 3 reactor 402 is heated by the No. 3 heating furnace 401. The gas enters the No. 1 reactor 202 through the gas inlet 101 for activation reaction. The activated gas enters the No. 2 reactor 302 through the No. 2 reactor inlet 303 for coal pyrolysis reaction. The volatile matter generated after pyrolysis is sent from the No. 2 reactor outlet 304 to the No. 3 reactor 402 for catalytic reaction. The product after the catalytic reaction is sent to the refrigerator 501 through the No. 3 reactor outlet 404 for cooling. The coal tar will be collected in the coal tar collector 505, and the pyrolysis dry gas will be delivered to the downstream through the pyrolysis dry gas conveying pipe 506.

[0061] Pulverized coal rapid pyrolysis experiment:

[0062] (5) When conducting the pulverized coal rapid pyrolysis experiment, a combination of a gas module, a pyrolysis module, and a receiving module is used;

[0063] Before the experiment, pulverized coal was placed on the retractable pulverized coal support tray 308 of the No. 2 reactor's inclined tube 306. The No. 2 cooler 309 was opened to cool the pulverized coal. The No. 2 reactor's inlet 303 was then tightened to the gas outlet 104. Finally, the No. 2 reactor's outlet 304 was tightened to the coal tar cooling tube inlet 503. During the experiment, an internal temperature thermocouple, based on the current length of the experimental reactor, was inserted from the reactor head 103 of the gas module into the No. 2 reactor tray 305 to measure the reaction temperature. The No. 2 reactor 302 was heated by the No. 2 heating furnace 301. Gas enters the No. 2 reactor 302 through the gas inlet 101. When the temperature inside the No. 2 reactor tray 305 reaches the experimental temperature, the retractable coal powder support tray 308 is pulled out to allow the coal powder on it to slide onto the No. 2 reactor tray 305 for rapid pyrolysis reaction. The volatile matter generated after pyrolysis is cooled in the refrigerator 501 through the No. 2 reactor outlet 304. The coal tar will be collected in the coal tar collector 505, and the pyrolysis dry gas will be discharged downstream through the pyrolysis dry gas delivery pipe 506.

[0064] (6) When conducting the catalytic rapid pyrolysis experiment of pulverized coal, a combination of gas module, pyrolysis module, catalytic module and receiving module is used;

[0065] Before the experiment, pulverized coal was placed on the retractable pulverized coal support tray 308 of the inclined tube 306 of reactor No. 2 302. Cooler No. 2 309 was opened for cooling, and the catalyst was placed on reactor No. 3 tray 405. The inlet 303 of reactor No. 2 was then screwed to the gas outlet 104, the outlet 304 of reactor No. 2 to the inlet 403 of reactor No. 3, and the outlet 404 of reactor No. 3 to the coal tar cooling pipe inlet 503. During the experiment, an internal temperature thermocouple, based on the current length of the experimental reactor, was inserted from the reactor head 103 of the gas module into reactor No. 2 tray 305 to record the reaction temperature. Heat was applied to reactor No. 2 302 via heating furnace No. 2 301, and to reactor No. 3 402 via heating furnace No. 3 401. The gas enters the No. 2 reactor 302 through the gas inlet 101. When the temperature inside the No. 2 reactor tray 305 reaches the experimental temperature, the telescopic coal powder support tray 308 is pulled out to slide the coal powder onto the No. 2 reactor tray 305 for rapid pyrolysis reaction. The volatile matter generated after pyrolysis is sent from the No. 2 reactor outlet 304 to the No. 3 reactor 402 to continue the catalytic reaction. The product after the catalytic reaction is sent to the refrigerator 501 through the No. 3 reactor outlet 404 for cooling. The coal tar will be collected in the coal tar collector 505, and the pyrolysis dry gas will be discharged downstream through the pyrolysis dry gas delivery pipe 506.

[0066] (7) When conducting the gas activation and coal powder rapid pyrolysis coupling experiment, a combination of gas module, gas activation module, pyrolysis module and receiving module is used;

[0067] Before the experiment, pulverized coal was placed on the retractable pulverized coal support tray 308 of the No. 2 reactor's inclined tube 306. The No. 2 cooler 309 was opened for cooling. The activator was placed on the No. 1 reactor tray 205. The No. 1 reactor inlet 203 was then tightened to the gas outlet 104, the No. 1 reactor outlet 204 was tightened to the No. 2 reactor inlet 303, and the No. 2 reactor outlet 304 was tightened to the coal tar cooling pipe inlet 503. During the experiment, an internal temperature thermocouple was inserted from the reactor head 103 of the gas module into the No. 2 reactor tray 305, based on the current length of the experimental reactor. The reaction temperature was measured. The No. 2 reactor 302 was heated by the No. 2 heating furnace 301, and the No. 1 reactor 202 was heated by the No. 1 heating furnace 201. The gas enters the No. 1 reactor 202 through the gas inlet 101 for an activation reaction. When the temperature inside the No. 2 reactor tray 305 reaches the experimental temperature, the telescopic coal powder support tray 308 is pulled out to slide the coal powder onto the No. 2 reactor tray 305, where it undergoes a coupled reaction of gas activation and rapid pyrolysis with the activated gas. The volatile matter generated after pyrolysis is cooled in the refrigerator 501 through the No. 2 reactor outlet 304. The coal tar will be collected in the coal tar collector 505, and the pyrolysis dry gas will be discharged downstream through the pyrolysis dry gas delivery pipe 506.

[0068] (8) When conducting the coupling experiment of gas activation and pulverized coal catalytic pyrolysis, a combination of gas module, gas activation module, pyrolysis module, catalytic module and receiving module is used.

[0069] Before the experiment, the pulverized coal was placed on the telescopic pulverized coal support tray 308 of the inclined tube 306 of the No. 2 reactor, the No. 2 cooler 309 was opened for cooling, the activator was placed on the No. 1 reactor tray 205, the catalyst was placed on the No. 3 reactor tray 405, the No. 1 reactor inlet 203 was tightened to the gas outlet 104, the No. 1 reactor outlet 204 was tightened to the No. 2 reactor inlet 303, the No. 2 reactor outlet 304 was tightened to the No. 3 reactor inlet 403, and the No. 3 reactor outlet 404 was tightened to the coal tar cooling pipe inlet 503. During the experiment, the internal temperature thermocouple is inserted from the reactor head 103 of the gas module to the No. 2 reactor tray 305 according to the length of the experimental reactor at this time to test the reaction temperature. The No. 2 reactor 302 is heated by the No. 2 heating furnace 301, the No. 1 reactor 202 is heated by the No. 1 heating furnace 201, and the No. 3 reactor 402 is heated by the No. 3 heating furnace 401. The gas enters the No. 1 reactor 202 through the gas inlet 101 for activation reaction. When the No. 2 reactor tray 305 is heated, the No. 2 reactor 302 is heated. When the temperature reaches the experimental temperature, the retractable coal powder support tray 308 is pulled out to slide the coal powder onto the No. 2 reactor tray 305, where it undergoes a coupled reaction of gas activation and rapid pyrolysis with the activated gas. The volatile matter generated after pyrolysis is sent from the No. 2 reactor outlet 304 to the No. 3 reactor 402 for catalytic reaction. The product after the catalytic reaction is sent through the No. 3 reactor outlet 404 to the refrigerator 501 for cooling. The coal tar will be collected in the coal tar collector 505, and the pyrolysis dry gas will be delivered to the downstream through the pyrolysis dry gas delivery pipe 506.

[0070] The above content is only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A modular multifunctional coal pyrolysis device, characterized in that: include: A gas module comprising a gas pipeline (102) and a reactor head (103) mounted on the gas pipeline; The gas activation module comprises a No. 1 heating furnace (201), a No. 1 reactor (202) disposed in the No. 1 heating furnace (201), and a No. 1 reactor tray (205) disposed in the No. 1 reactor (202); The pyrolysis module comprises a No. 2 heating furnace (301), a No. 2 reactor (302) disposed in the No. 2 heating furnace (301), and a No. 2 reactor tray (305) disposed in the No. 2 reactor (302); The catalytic module comprises a No. 3 heating furnace (401), a No. 3 reactor (402) disposed in the No. 3 heating furnace (401), and a No. 3 reactor tray (405) disposed in the No. 3 reactor (402); The receiving module includes a refrigerator (501), a coal tar cooling pipe (502) arranged in the refrigerator (501), a coal tar collector (505) arranged at the bottom end of the coal tar cooling pipe (502), and a pyrolysis dry gas conveying pipe (506) connected to the coal tar collector (505) for leading the pyrolysis dry gas out of the device; The gas pipeline (102), reactor No. 1 (202), reactor No. 2 (302), reactor No. 3 (402), and coal tar cooling pipe (502) have the same diameter; When in use, the gas pipeline (102) is connected to the No. 2 reactor (302) and the coal tar cooling pipe (502) in sequence; or the gas pipeline (102) is connected to the No. 2 reactor (302), the No. 3 reactor (402), and the coal tar cooling pipe (502) in sequence; or the gas pipeline (102) is connected to the No. 1 reactor (202), the No. 2 reactor (302), and the coal tar cooling pipe (502) in sequence; or the gas pipeline (102), the No. 1 reactor (202), the No. 2 reactor (302), the No. 3 reactor (402), and the coal tar cooling pipe (502) in sequence.

2. The modular multifunctional coal pyrolysis device according to claim 1, characterized in that: The gas pipeline (102) in the gas module is a three-pronged structure, one end of which is a gas inlet (101), one end is a gas outlet (104), and one end is a top, which is provided with a reactor head (103).

3. The modular multifunctional coal pyrolysis device according to claim 1, characterized in that: The gas is delivered to the gas pipeline (102) through a flow meter, and the gas is hydrogen, nitrogen or methane.

4. The modular multifunctional coal pyrolysis device according to claim 1, characterized in that: The pyrolysis module is further provided with an inclined tube (306), the lower end of the inclined tube (306) being connected to the No. 2 reactor (302) via an interface, the interface being located in the middle of the No. 2 reactor (302) tube body, and the inclined tube (306) and the No. 2 reactor (302) upstream of the interface forming an acute angle; at least a portion of the inclined tube (306) is located outside the No. 2 heating furnace (301), and a telescopic pulverized coal support tray (308) is provided on the external inclined tube (306) pipeline; and the No. 2 reactor tray (305) is provided on the downstream pipeline of the interface.

5. The modular multifunctional coal pyrolysis device according to claim 4, characterized in that: At least a portion of the pipeline of the inclined pipe (306) located outside the No. 2 heating furnace (301) is located in the No. 2 cooler (309), and the telescopic pulverized coal support tray (308) is located in the No. 2 cooler (309).

6. The modular multifunctional coal pyrolysis device according to claim 4 or 5, characterized in that: The telescopic pulverized coal support tray (308) is a telescopic tray.

7. The modular multifunctional coal pyrolysis device according to claim 4, characterized in that: A No. 2 reaction tube cover (307) is provided on the top of the inclined tube (306).

8. The modular multifunctional coal pyrolysis device according to claim 7, characterized in that: The reactor head (103) and the No. 2 reaction tube head (307) are configured to be detachable.

9. The modular multifunctional coal pyrolysis device according to claim 8, characterized in that: It also includes an internal temperature thermocouple, which is placed into the No. 1 reactor (202), the No. 2 reactor (302) or the No. 3 reactor (402) from the seal of the reactor head (103).

10. The modular multifunctional coal pyrolysis device according to claim 1, characterized in that: The outlet of the gas pipeline (102), the inlet and outlet of the No. 1 reactor (202), the inlet and outlet of the No. 2 reactor (302), the inlet and outlet of the No. 3 reactor (402) and the air inlet of the coal tar cooling pipe (502) are provided with threads, and the pipelines are connected by threads.

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