CN110272020B - Control method of array type non-equilibrium plasma reformer - Google Patents
Control method of array type non-equilibrium plasma reformer Download PDFInfo
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- CN110272020B CN110272020B CN201910566834.1A CN201910566834A CN110272020B CN 110272020 B CN110272020 B CN 110272020B CN 201910566834 A CN201910566834 A CN 201910566834A CN 110272020 B CN110272020 B CN 110272020B
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/22—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of gaseous or liquid organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00018—Construction aspects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
- B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
- B01J2219/0809—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes employing two or more electrodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0873—Materials to be treated
- B01J2219/0877—Liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0894—Processes carried out in the presence of a plasma
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
- C01B2203/0211—Processes for making hydrogen or synthesis gas containing a reforming step containing a non-catalytic reforming step
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0266—Processes for making hydrogen or synthesis gas containing a decomposition step
- C01B2203/0272—Processes for making hydrogen or synthesis gas containing a decomposition step containing a non-catalytic decomposition step
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
- C01B2203/0861—Methods of heating the process for making hydrogen or synthesis gas by plasma
Abstract
The invention discloses a control method of an array type non-equilibrium plasma reformer, belonging to the technical field of control of an online reforming hydrogen production reformer, comprising the following steps: the ECU controls a high-voltage power supply to supply power to a high-voltage electrode, an electric field is formed in an ionization cavity formed by the high-voltage electrode, an insulating sleeve and an outlet cover plate, a liquid fuel injection valve is opened, and liquid fuel starts to be injected; meanwhile, the carrier gas injection valve is opened, and the high-pressure carrier gas starts to be injected; the liquid fuel enters the ionization cavity through the liquid fuel inlet and the carrier gas through the carrier gas inlet; mixing fuel and carrier gas in an ionization cavity, and generating hydrogen-rich combustible gas containing H2 and CO under the action of an electric field; the gas outlet valve is opened, and the hydrogen-rich gas flows out of the reformer through the reforming gas outlet 31; the reforming hydrogen production efficiency is high, no catalyst is needed, the cost is reduced, and the safety is improved.
Description
Technical Field
The invention belongs to the technical field of control of an online reforming hydrogen production reformer, and particularly relates to a control method of an array type non-equilibrium plasma reformer.
Background
The hydrogen-containing liquid fuels such as methanol and ethanol are subjected to reforming reaction under certain conditions, so that the hydrogen-containing fuels can be subjected to cracking reaction to generate combustible gas rich in hydrogen, the generated gas can be directly used as engine fuel, the ignition and combustion performance of an engine can be effectively improved, and the emission is reduced.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the control method of the array type non-equilibrium plasma reformer, which has high hydrogen production efficiency by reforming, does not need a catalyst, reduces the cost and improves the safety.
The technical scheme adopted by the invention for solving the technical problem is as follows: a control method of an array type non-equilibrium plasma reformer comprises the following steps:
s1: the ECU sends an instruction to a high-voltage power supply, the high-voltage power supply starts to supply power to the high-voltage electrode, and after the power is supplied, an electrified electric field is formed in an ionization cavity defined by the high-voltage electrode, the insulating sleeve and the outlet cover plate;
s2: the ECU sends an instruction to the liquid fuel injection valve to control the liquid fuel injection valve to open, the liquid fuel in the fuel tank starts to be injected, meanwhile, the ECU sends an instruction to the carrier gas injection valve to control the carrier gas injection valve to open, the high-pressure carrier gas in the high-pressure carrier gas bottle starts to be injected, the liquid fuel enters the ionization cavity through the liquid fuel inlet, and the high-pressure carrier gas enters the ionization cavity through the carrier gas inlet; mixing liquid fuel and high-pressure carrier gas in an ionization cavity, and generating hydrogen-rich combustible gas containing H2 and CO under the action of an electrified electric field in the ionization cavity;
s3: the ECU sends an instruction to the gas outlet valve to control the gas outlet valve to be opened so that the hydrogen-rich gas flows out through the reformed gas outlet;
s4: the outlet gas flowmeter records the flow of the hydrogen-rich combustible gas, when the flow of the hydrogen-rich combustible gas reaches the required amount, the ECU sends an instruction to the liquid fuel injection valve to control the liquid fuel injection valve to be closed, and at the moment, the carrier gas injection valve is kept in an open state to continue supplying high-pressure carrier gas and push the residual liquid fuel in the ionization cavity out of the reformed gas outlet; after time t1, the ECU sends an instruction to the gas outlet valve to control the gas outlet valve to be closed, and meanwhile, the ECU sends an instruction to the carrier gas injection valve to control the carrier gas injection valve to be closed;
s5: after time t2, the ECU sends an instruction to the high-voltage power supply to control the high-voltage power supply to be powered off, and at the moment, the charged electric field in the ionization cavity disappears;
s6: the ECU sends an instruction to an insulating sleeve liquid collection inlet valve arranged at an insulating sleeve liquid collection inlet to control the insulating sleeve liquid collection inlet valve to be opened, and simultaneously sends an instruction to the liquid collection valve and the liquid collection pump to control the liquid collection valve to be opened, then the liquid collection pump starts to work, and residual liquid fuel in the ionization chamber flows out through the liquid collection pipe under the action of pressure difference;
s7: after time t3, the ECU controls all valves to close.
Further, the high-pressure carrier gas is nitrogen.
Further, the residual liquid fuel in step S6 flows out through the collecting pipe under the action of the pressure difference and then returns to the collecting tank.
The invention has the beneficial effects that: the non-equilibrium plasma technology is adopted to carry out reforming hydrogen production on the hydrogen-containing liquid fuel, the reforming efficiency is high, catalysts which are necessary to be adopted by other reforming hydrogen production technologies are not used, the cost can be reduced, and the problem of system reliability reduction caused by catalyst poisoning is solved.
Drawings
FIG. 1 is a schematic diagram of an array type non-equilibrium plasma reformer according to the present invention.
The reference numbers in the figures are as follows: 1. insulating sleeve, 111, liquid fuel inlet, 121, carrier gas inlet, 131, liquid collecting outlet, 151, insulating sleeve liquid collecting inlet, 2, grounding electrode, 21, grounding electrode liquid collecting port, 3, outlet cover plate, 31, reformed gas outlet, 4, high-voltage electrode, 5, liquid collecting pipe, 61, gas outlet valve, 62, liquid fuel injection valve, 63, carrier gas injection valve, 64, liquid collecting valve, 7, outlet gas flowmeter, 8, fuel tank, 9, high-voltage carrier gas bottle, 10, liquid collecting tank, 11, high-voltage power supply, 12, liquid collecting pump, 13, fuel injection pipeline, 14, carrier gas injection pipeline, 15, liquid collecting pipeline, 16, fuel pipeline, 17, carrier gas pipeline, 18, liquid collecting communicating pipeline, 19, insulating sleeve liquid collecting inlet valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1
The present embodiment provides a structure of an array type non-equilibrium plasma reformer, which includes a plurality of reformer bodies connected and having the same structure, wherein each reformer body includes an insulating sleeve 1, a ground electrode 2 connected to a side wall of the insulating sleeve 1, an outlet cover plate 3 connected to one end of the insulating sleeve, a high voltage electrode 4 connected to the other end of the insulating sleeve 1 and located in the middle of the insulating sleeve, and a collector tube 5; one end of the liquid collecting pipe 5 is connected to an insulating sleeve liquid collecting inlet 151 formed in the side wall of the insulating sleeve 1, and the other end of the liquid collecting pipe is connected to a grounding electrode liquid collecting port 21 formed in the side wall of the grounding electrode 2; an insulating sleeve liquid collection inlet valve 19 is arranged at the insulating sleeve liquid collection inlet 151, and the arrangement of the insulating sleeve liquid collection inlet valve 19 prevents reformed hydrogen-rich gas from leaking into the liquid collection pipe 5; an ionization cavity is formed among the insulating sleeve 1, the high-voltage electrode 4 and the outlet cover plate; the insulating sleeves 1 of the plurality of reformer bodies are connected to form an insulating sleeve group, the outlet cover plates of the plurality of reformer bodies are connected to form an outlet cover plate group, the insulating sleeve 1 is provided with a liquid fuel inlet 111, a carrier gas inlet 121 and a liquid collecting outlet 131 which are adjacently arranged, and the liquid collecting outlet 131 is communicated with a grounding electrode liquid collecting port 21; the outlet cover plate 3 is provided with a reformer outlet 31;
the liquid fuel inlet 111 of the first reformer body is connected with the fuel tank 8 through a fuel injection pipeline 13, the carrier gas inlet 121 is connected with the high-pressure carrier gas bottle 9 through a carrier gas injection pipeline 14, the liquid collecting outlet 131 is connected with the liquid collecting tank 10 through a liquid collecting pipeline 15, and the fuel tank 8 is connected with the liquid collecting tank 10 through a pipeline; the high voltage electrodes 4 of the plurality of reformer bodies are each connected to a high voltage power supply 11. The fuel injection pipe 13 is provided with a liquid fuel injection valve 62, the carrier gas injection pipe 14 is provided with a carrier gas injection valve 63, and the liquid collection pipe 15 is provided with a liquid collection valve 64 and a liquid collection pump 12.
The connecting pipelines at the liquid fuel inlets 111 of the other reformer bodies except the first reformer body are provided with a liquid fuel injection valve 62, the other end of the liquid fuel injection valve 62 on the corresponding connecting pipeline is connected to the fuel pipeline 16 through a pipeline, and the fuel pipeline 16 is connected with the fuel injection pipeline 13;
the connecting pipelines at the carrier gas inlets 121 of the other reformer bodies except the first reformer body are provided with a carrier gas injection valve 63, the other end of the carrier gas injection valve 63 on the corresponding connecting pipeline is connected to a carrier gas pipeline 17 through a pipeline, and the carrier gas pipeline 17 is connected with a carrier gas injection pipeline 14;
the connecting pipelines of the liquid collecting outlets 131 of the other reformer bodies except the first reformer body are provided with a liquid collecting valve 64, the other end of the liquid collecting valve 64 corresponding to the connecting pipeline is connected to a liquid collecting communicating pipeline 18, and the liquid collecting communicating pipeline 18 is connected with a liquid collecting pipeline 15.
The reformer outlet 31 provided on each outlet cover plate 3 is connected with the gas outlet valve 61 and the outlet gas flow meter 7 in sequence through pipelines, and the outlet gas flow meters 7 are connected through pipelines.
Preferably, in the present embodiment, the insulating sleeve 1 is made of teflon insulating material, the grounding electrode 2 is made of red copper, tungsten alloy, stainless steel material, the outlet cover plate 3 is made of teflon insulating material, and the high-voltage electrode 4 is made of red copper, tungsten alloy, stainless steel material.
The gas outlet valve 61 is a check valve structure and is installed downstream of the reformed gas outlet 31 to control the flow rate of the reformed gas. An outlet gas flow meter 7 is installed downstream of the gas outlet valve for monitoring the flow rate of the produced hydrogen-rich gas. The fuel tank 8 is used for supplying hydrogen-containing liquid fuel for the reformer, the high-pressure carrier gas bottle 9 is used for supplying high-pressure carrier gas for the reformer, the liquid collecting tank 10 is used for collecting unreacted liquid fuel collected by the liquid collecting pipe 5 and supplying the collected hydrogen-containing liquid fuel to the fuel tank 8 under certain conditions, the high-voltage power supply 11 is used for supplying power to the high-voltage electrode 4, and the liquid collecting pump 12 is used for generating pressure difference and extracting residual liquid fuel.
Example 2
A control method of an array type non-equilibrium plasma reformer comprises the following steps:
s1: the ECU sends an instruction to the high-voltage power supply 11, the high-voltage power supply 11 starts to supply power to the high-voltage electrode 4, and an electrified electric field is formed in an ionization cavity defined by the high-voltage electrode 4, the insulating sleeve 1 and the outlet cover plate 3 after power supply;
s2: the ECU sends an instruction to the liquid fuel injection valve 62 to control the liquid fuel injection valve 62 to be opened, the liquid fuel in the fuel tank 8 starts to be injected, meanwhile, the ECU sends an instruction to the carrier gas injection valve 63 to control the carrier gas injection valve 63 to be opened, the high-pressure carrier gas in the high-pressure carrier gas bottle 9 starts to be injected, the liquid fuel enters the ionization cavity through the liquid fuel inlet 111, and the high-pressure carrier gas enters the ionization cavity through the carrier gas inlet 121; mixing liquid fuel and high-pressure carrier gas in an ionization cavity, and generating hydrogen-rich combustible gas containing H2 and CO under the action of an electrified electric field in the ionization cavity;
s3: the ECU sends an instruction to the gas outlet valve 61 to control the gas outlet valve 61 to be opened, so that the hydrogen-rich gas flows out through the reformed gas outlet 31;
s4: the outlet gas flowmeter 7 records the flow of the hydrogen-rich combustible gas, when the flow of the hydrogen-rich combustible gas reaches the required amount, the ECU sends an instruction to the liquid fuel injection valve 62 to control the liquid fuel injection valve 62 to be closed, at the moment, the carrier gas injection valve 63 is kept in an open state, high-pressure carrier gas is continuously supplied, and the residual liquid fuel in the ionization cavity is pushed out of the reformed gas outlet 31; after time t1, the ECU gives an instruction to the gas outlet valve 61 to control the gas outlet valve 61 to close, and at the same time, the ECU gives an instruction to the carrier gas injection valve 63 to control the carrier gas injection valve 63 to close;
s5: after time t2, the ECU sends an instruction to the high-voltage power supply 11 to control the high-voltage power supply 11 to be powered off, and at the moment, the charged electric field in the ionization chamber disappears;
s6: the ECU sends an instruction to an insulating sleeve liquid collection inlet valve 19 arranged at an insulating sleeve liquid collection inlet 151 to control the insulating sleeve liquid collection inlet valve 19 to be opened, meanwhile, the ECU sends an instruction to a liquid collection valve 64 and a liquid collection pump 12 to control the liquid collection valve 64 to be opened, then the liquid collection pump 12 starts to work, and residual liquid fuel in an ionization cavity flows out through a liquid collection pipe 5 under the action of pressure difference and returns to the liquid collection tank 10;
s7: after time t3, the ECU controls all valves to close.
The high pressure carrier gas is nitrogen.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (3)
1. A control method of an array type non-equilibrium plasma reformer is characterized by comprising the following steps:
s1: the ECU sends an instruction to the high-voltage power supply (11), the high-voltage power supply (11) starts to supply power to the high-voltage electrode (4), and an electrified electric field is formed in an ionization cavity enclosed among the high-voltage electrode (4), the insulating sleeve (1) and the outlet cover plate (3) after power supply;
s2: the ECU gives a command to the liquid fuel injection valve (62) to control the liquid fuel injection valve (62) to open and start injecting the liquid fuel in the fuel tank (8), and at the same time, the ECU gives a command to the carrier gas injection valve (63) to control the carrier gas injection valve (63) to open and start injecting the high-pressure carrier gas in the high-pressure carrier gas cylinder (9)Gas starts to be sprayed, the liquid fuel enters the ionization cavity through a liquid fuel inlet (111), and the high-pressure carrier gas enters the ionization cavity through a carrier gas inlet (121); the liquid fuel and the high-pressure carrier gas are mixed in the ionization cavity, and generate H under the action of an electrified electric field in the ionization cavity2Hydrogen-rich combustible gas of CO;
s3: the ECU sends an instruction to the gas outlet valve (61) to control the gas outlet valve (61) to be opened, so that the hydrogen-rich gas flows out through the reformed gas outlet (31);
s4: the outlet gas flowmeter (7) records the flow of the hydrogen-rich combustible gas, when the flow of the hydrogen-rich combustible gas reaches the required amount, the ECU sends an instruction to the liquid fuel injection valve (62) to control the liquid fuel injection valve (62) to be closed, at the moment, the carrier gas injection valve (63) maintains an open state, high-pressure carrier gas is continuously supplied, and the residual liquid fuel in the ionization cavity is pushed out of the reformed gas outlet (31); after time t1, the ECU sends a command to the gas outlet valve (61) to control the gas outlet valve (61) to be closed, and meanwhile, the ECU sends a command to the carrier gas injection valve (63) to control the carrier gas injection valve (63) to be closed;
s5: after time t2, the ECU sends an instruction to the high-voltage power supply (11) to control the high-voltage power supply (11) to be powered off, and at the moment, the electrified electric field in the ionization chamber disappears;
s6: the ECU sends an instruction to an insulating sleeve liquid collection inlet valve (19) arranged at an insulating sleeve liquid collection inlet (151) to control the insulating sleeve liquid collection inlet valve (19) to be opened, meanwhile, the ECU sends an instruction to a liquid collection valve (64) and a liquid collection pump (12) to control the liquid collection valve (64) to be opened, then the liquid collection pump (12) starts to work, and residual liquid fuel in an ionization cavity flows out through a liquid collection pipe (5) under the action of pressure difference;
s7: after time t3, the ECU controls all valves to close.
2. The method of claim 1, wherein the high pressure carrier gas is nitrogen.
3. The method of controlling an array type non-equilibrium plasma reformer according to claim 1, wherein the residual liquid fuel of step S6 returns to the liquid collecting tank (10) after flowing out through the liquid collecting tube (5) under the pressure difference.
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| CN201910566834.1A CN110272020B (en) | 2019-06-27 | 2019-06-27 | Control method of array type non-equilibrium plasma reformer |
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| KR20080036839A (en) * | 2006-10-24 | 2008-04-29 | 삼성에스디아이 주식회사 | Reformer of fuel cell system and method for controlling the same |
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