WO2022199327A1 - Multi-energy supplementary power generation system with methanol as carrier and working method therefor - Google Patents

Multi-energy supplementary power generation system with methanol as carrier and working method therefor Download PDF

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WO2022199327A1
WO2022199327A1 PCT/CN2022/078199 CN2022078199W WO2022199327A1 WO 2022199327 A1 WO2022199327 A1 WO 2022199327A1 CN 2022078199 W CN2022078199 W CN 2022078199W WO 2022199327 A1 WO2022199327 A1 WO 2022199327A1
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unit
methanol
power generation
carbon dioxide
oxygen
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PCT/CN2022/078199
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French (fr)
Chinese (zh)
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刘蓉
王琪
李旭
刘练波
郜时旺
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中国华能集团清洁能源技术研究院有限公司
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Publication of WO2022199327A1 publication Critical patent/WO2022199327A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/152—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the reactor used
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Definitions

  • the invention belongs to the technical field of coal chemical industry, and particularly relates to a multi-energy complementary power generation system using methanol as a carrier and a working method thereof.
  • renewable energy such as photovoltaic solar energy
  • renewable energy power generation has unstable power generation and does not match power demand.
  • Wind energy and solar energy need to combine uncertainty with the stability of power demand. The challenge is huge.
  • Power generation is largely dependent on changes in weather, and if reasonable steps are not taken to improve this volatility, the future of renewable energy will be worrisome.
  • the purpose of the present invention is to provide a multi-energy complementary power generation system with methanol as a carrier and a working method thereof.
  • methanol is used for power generation, and the generated electricity is used to supplement the gap of new energy power generation, which is conducive to the stability of new energy power generation and power supply system, and also realizes the conversion and utilization of carbon dioxide.
  • the invention discloses a multi-energy complementary power generation system using methanol as a carrier, which comprises a new energy power generation unit, an electrolysis water unit, an oxygen collection unit, a hydrogen collection unit, a carbon dioxide-to-methanol unit, a methanol storage unit, a water treatment unit and a fuel power generation unit unit;
  • the oxygen outlet of the water electrolysis unit is connected to the oxygen collection unit, the hydrogen outlet of the water electrolysis unit is connected to the hydrogen collection unit, the hydrogen outlet of the hydrogen collection unit is connected to the hydrogen inlet of the carbon dioxide to methanol unit, and the methanol outlet of the carbon dioxide to methanol unit is connected to
  • the methanol storage unit is connected, the methanol outlet of the methanol storage unit is connected with the fuel inlet of the fuel power generation unit, the outlet of the oxygen collection unit is connected with the oxygen inlet of the fuel power generation unit, the carbon dioxide outlet of the fuel power generation unit is connected with the carbon dioxide inlet of the carbon dioxide to methanol unit,
  • the waste water outlet of the fuel power generation unit is connected with the inlet of the water treatment unit, and the outlet of the water treatment unit is connected with the inlet of the water electrolysis unit; the new energy power generation unit is connected with the water electrolysis unit, the carbon dioxide to methanol unit and the electricity user respectively through cables, and the fuel The power generating unit is connected to the electricity consumer by
  • a hydrogen flow detection and control device is provided on the connecting pipeline between the hydrogen collection unit and the carbon dioxide to methanol unit
  • a carbon dioxide flow detection and control device is provided on the connecting pipeline between the fuel power generation unit and the carbon dioxide to methanol unit. Both the flow detection and control unit and the carbon dioxide flow detection and control unit are connected to the control unit of the system.
  • the connecting pipeline between the oxygen collection unit and the oxygen inlet of the fuel power generation unit is provided with an oxygen flow detection and control device
  • the connecting pipeline between the methanol outlet of the methanol storage unit and the fuel inlet of the fuel power generation unit is provided with methanol
  • the flow detection and control device, the oxygen flow detection and control device and the methanol flow detection and control device are all connected to the control unit of the system.
  • connection pipeline between the outlet of the water treatment unit and the inlet of the electrolyzed water unit is provided with a water flow detection and control device
  • the new energy power generation unit is connected with a power regulation and dispatch unit
  • the power regulation and dispatch unit is respectively connected to the electrolyzed water unit.
  • the unit, the carbon dioxide-to-methanol unit and the electricity user are connected, and the water flow detection and control device and the power regulation and dispatch unit are all connected to the control unit of the system.
  • the power regulation and dispatching unit includes a rectifier, an inverter, a transformer and an electric control cabinet; one end of the rectifier is connected to the new energy power generation unit, the other end is connected to the inverter, the inverter is connected to the transformer, and the transformer is respectively connected to the electrolyzer.
  • the water unit, the carbon dioxide-to-methanol unit and the electricity user are connected, and the electric control cabinet is respectively connected with the rectifier, the inverter and the transformer.
  • the carbon dioxide to methanol unit includes an electrocatalytic device and a chemical catalytic device.
  • the oxygen collection unit includes an oxygen storage tank
  • the hydrogen collection unit includes a hydrogen storage tank
  • the methanol storage unit includes a methanol storage tank
  • the oxygen storage tank, the hydrogen storage tank and the methanol storage tank are all connected with a barometer and a thermometer, and the barometer and the thermometer are connected Each is connected to the control unit of the system.
  • the oxygen storage tank, the hydrogen storage tank and the methanol storage tank are all provided with safety valves.
  • the working method of the above-mentioned multi-energy complementary power generation system with methanol as a carrier disclosed in the present invention includes:
  • the electric energy generated by the new energy power generation unit is supplied to the water electrolysis unit, the carbon dioxide to methanol unit and electricity users.
  • the oxygen generated by the water electrolysis unit is stored in the oxygen collection unit, and the generated hydrogen is stored in the hydrogen collection unit; the methanol produced by the carbon dioxide to methanol unit is stored in methanol storage units;
  • the oxygen collection unit transports the stored oxygen to the fuel power generation unit
  • the methanol storage unit transports the stored methanol to the fuel power generation unit
  • the fuel power generation unit generates electricity and supplies electricity to the electricity users.
  • the carbon dioxide enters the carbon dioxide-to-methanol unit, and the generated wastewater is treated by the water treatment unit and then enters the water electrolysis unit.
  • the molar ratio of H 2 to CO 2 in the carbon dioxide to methanol unit is 3.05-4.15.
  • the present invention has the following beneficial technical effects:
  • the invention discloses a multi-energy complementary power generation system using methanol as a carrier, using methanol as an energy storage carrier, using methanol fuel to have the characteristics of easy storage and easy conversion, and using electrolyzed water to produce hydrogen and carbon dioxide when there is surplus electricity.
  • Methanol stores energy, and uses methanol to generate electricity when the power supply is insufficient, and the generated electricity is used to supplement the gap of new energy power generation.
  • the traditional energy storage technology has the problems of high cost, short life, poor safety and difficult recovery.
  • the use of chemical fuel energy storage has high energy density and large energy storage capacity of methanol, and there is no problem of battery life and recovery, which improves the energy consumption.
  • the utilization efficiency reduces the phenomenon of abandoning wind, light and electricity, and promotes the technological development of new energy power generation, which is conducive to the stability of new energy power generation and power supply systems; at the same time, it also realizes the conversion and utilization of carbon dioxide, making full use of new energy power generation.
  • the advantages of environmental protection and pollution-free reduce operating costs.
  • a hydrogen flow detection and control device and a carbon dioxide flow detection and control device are provided, which can adjust the carbon-hydrogen ratio of the feed gas entering the carbon dioxide to methanol unit, and improve the yield of carbon dioxide to methanol.
  • an oxygen flow detection and control device and a methanol flow detection and control device are provided, which can control the amount of raw materials entering the fuel power generation unit, so as to achieve the purpose of controlling the power generation to match the electricity users.
  • a water flow detection and control device and a power adjustment and scheduling unit are provided, which can control the matching between the raw material water of the water electrolysis hydrogen production unit and the surplus power, and improve the efficiency of water electrolysis hydrogen production.
  • the conditions in the oxygen storage tank, the hydrogen storage tank and the methanol storage tank can be monitored in real time through the barometer and thermometer, and fed back to the control unit.
  • safety valves can improve the safety and stability of oxygen storage tanks, hydrogen storage tanks and methanol storage tanks.
  • the working method of the multi-energy complementary power generation system using methanol as a carrier disclosed in the present invention has the advantages of simple operation and high degree of automation, which promotes the technological development of new energy power generation and is beneficial to the stability of new energy power generation and power supply system; at the same time, it also realizes It realizes the conversion and utilization of carbon dioxide, makes full use of the advantages of new energy power generation, which is environmentally friendly and pollution-free, reduces operating costs, and has good application prospects.
  • FIG. 1 is a schematic diagram of the overall structure of the present invention.
  • FIG. 1 it is a multi-energy complementary power generation system using methanol as a carrier of the present invention, including a new energy power generation unit 1, an electrolyzed water unit 2, an oxygen collection unit 3, a hydrogen collection unit 4, a carbon dioxide to methanol unit 5, and a methanol storage unit. 6. Water treatment unit 7 and fuel power generation unit 8.
  • the oxygen outlet of the water electrolysis unit 2 is connected to the oxygen collection unit 3, the hydrogen outlet of the water electrolysis unit 2 is connected to the hydrogen collection unit 4, the hydrogen outlet of the hydrogen collection unit 4 is connected to the hydrogen inlet of the carbon dioxide to methanol unit 5, and the carbon dioxide to methanol unit 5 is connected.
  • the methanol outlet of the methanol unit 5 is connected to the methanol storage unit 6, the methanol outlet of the methanol storage unit 6 is connected to the fuel inlet of the fuel power generation unit 8, the outlet of the oxygen collection unit 3 is connected to the oxygen inlet of the fuel power generation unit 8, and the fuel power generation unit 8
  • the carbon dioxide outlet is connected to the carbon dioxide inlet of the carbon dioxide to methanol unit 5, the waste water outlet of the fuel power generation unit 8 is connected to the inlet of the water treatment unit 7, and the outlet of the water treatment unit 7 is connected to the inlet of the water electrolysis unit 2; 1 is connected to the water electrolysis unit 2, the carbon dioxide to methanol unit 5 and the electricity user 8 respectively through cables, and the fuel power generation unit 8 is connected to the electricity user 9 through cables.
  • the carbon dioxide to methanol unit 5 includes electrocatalytic equipment and chemical catalytic equipment, and can switch the process route according to the power supply of the new energy power generation unit 1 .
  • the new energy power generation unit 1 can use waste heat to generate electricity or renewable energy such as solar energy and photovoltaics to generate electricity.
  • the connecting pipeline between the hydrogen collection unit 4 and the carbon dioxide to methanol unit 5 is provided with a hydrogen flow detection and control device, and the connection between the fuel power generation unit 8 and the carbon dioxide to methanol unit 5 is provided with a hydrogen flow detection and control device.
  • a carbon dioxide flow detection and control device is arranged on the connecting pipeline, and both the hydrogen flow detection and control device and the carbon dioxide flow detection and control device are connected to the control unit of the system.
  • the connecting pipeline between the oxygen collection unit 3 and the oxygen inlet of the fuel power generation unit 8 is provided with an oxygen flow detection and control device, and the methanol outlet of the methanol storage unit 6 is connected to the fuel power generation unit.
  • the connecting pipeline between the fuel inlets of 8 is provided with a methanol flow detection and control device, and the oxygen flow detection and control device and the methanol flow detection and control device are all connected to the control unit of the system.
  • connection pipeline between the outlet of the water treatment unit 7 and the inlet of the water electrolysis unit 2 is provided with a water flow detection and control device, and the new energy power generation unit 1 is connected with a power regulating and The dispatch unit, the power regulation and dispatch unit are respectively connected with the water electrolysis unit 2, the carbon dioxide to methanol unit 5 and the electricity user 9, and the water flow detection and control device and the power regulation and dispatch unit are connected to the control unit of the system.
  • the power regulation and dispatching unit includes a rectifier, an inverter, a transformer and an electric control cabinet; one end of the rectifier is connected to the new energy power generation unit 1, the other end is connected to the inverter, the inverter is connected to the transformer, and the transformer is respectively connected to the electrolyzer
  • the water unit 2, the carbon dioxide-to-methanol unit 5 and the electricity user 9 are connected, and the electric control cabinet is respectively connected with the rectifier, the inverter and the transformer.
  • the oxygen collection unit 3 includes an oxygen storage tank
  • the hydrogen collection unit 4 includes a hydrogen storage tank
  • the methanol storage unit 6 includes a methanol storage tank, an oxygen storage tank, a hydrogen storage tank and a methanol storage tank Both are connected with a barometer and a thermometer, and the barometer and the thermometer are respectively connected to the control unit of the system.
  • the oxygen storage tank, the hydrogen storage tank and the methanol storage tank are all provided with safety valves.
  • the working method of the above-mentioned multi-energy complementary power generation system using methanol as a carrier includes:
  • the electric energy generated by the new energy power generation unit 1 is supplied to the water electrolysis unit 2, the carbon dioxide to methanol unit 5 and the electricity user 8.
  • the oxygen produced by the water electrolysis unit 2 is stored in the oxygen collection unit 3, and the generated hydrogen is stored in the hydrogen collection unit 4;
  • the methanol produced in the methanol unit 5 is stored in the methanol storage unit 6;
  • the oxygen collection unit 3 transports the stored oxygen to the fuel power generation unit 8
  • the methanol storage unit 6 transports the stored methanol to the fuel power generation unit 8, and the fuel power generation unit 8
  • the power generation is supplied to the electricity user 8
  • the generated carbon dioxide enters the carbon dioxide to methanol unit 5
  • the generated waste water is treated by the water treatment unit 7 and then enters the water electrolysis unit 2 .
  • the molar ratio of H 2 to CO 2 in the carbon dioxide to methanol unit 5 is 3.05 to 4.15.
  • the surplus electricity is sent to the water electrolysis unit 2 and the carbon dioxide to methanol unit 5 through the control unit, start the water electrolysis unit 2, open the control valve between the water electrolysis unit 2 and the oxygen collection unit 3 and the hydrogen collection unit 4, and open the hydrogen collection unit 4 and the control valve of the carbon dioxide to methanol unit 5, open the control valve between the new energy power generation unit 1 and the carbon dioxide to methanol unit 5, the hydrogen and carbon dioxide produced by the electrolysis of water react in the carbon dioxide to methanol unit 5 to generate methanol, open the carbon dioxide to methanol

Abstract

A multi-energy supplementary power generation system with methanol as a carrier and a working method therefor. The present invention belongs to the technical field of the coal chemical industry. The system comprises a new energy power generation unit, a water electrolysis unit, an oxygen collection unit, a hydrogen collection unit, a carbon-dioxide-to-methanol unit, a methanol storage unit, a water treatment unit, and a fuel power generation unit. In the present invention, methanol is used as a carrier for energy storage. When there is a surplus of electric power, the electrolysis of water into hydrogen is used to generate methanol with carbon dioxide for energy storage; and when the electrical power supply is insufficient, methanol is used for power generation, and the generated electricity is used for supplementing a gap in new energy power generation. Methanol is high in energy density and energy storage capacity, and no battery life and recovery problems exist. The utilization efficiency of the energy is improved, the technical development of new energy power generation is promoted, and new energy power generation and the stability of a power supply system are facilitated; in addition, the conversion and utilization of carbon dioxide are also achieved, the advantages of being environmentally friendly and free of pollution of new energy power generation are fully exploited, and the operation cost is reduced.

Description

一种以甲醇为载体的多能互补发电系统及其工作方法A multi-energy complementary power generation system using methanol as a carrier and its working method
本申请要求2021年03月22日提交中国专利局、申请号为202110302896.9、发明名称为“一种以甲醇为载体的多能互补发电系统及其工作方法”的发明专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the invention patent application submitted to the China Patent Office on March 22, 2021, the application number is 202110302896.9, and the invention name is "a multi-energy complementary power generation system using methanol as a carrier and its working method", all of which are The contents are incorporated herein by reference.
技术领域technical field
本发明属于煤化工技术领域，具体涉及一种以甲醇为载体的多能互补发电系统及其工作方法。The invention belongs to the technical field of coal chemical industry, and particularly relates to a multi-energy complementary power generation system using methanol as a carrier and a working method thereof.
背景技术Background technique
近年来，光伏太阳能等可再生能源大规模发展，但是可再生能源发电存在发电量不稳定以及和用电需求不匹配的情况，风能和太阳能需要把不确定性和电力需求的稳定性相结合，挑战巨大。发电很大程度上依赖于天气变化，如果要是没有采取合理的措施来改善这种波动性，可再生能源的未来发展趋势将令人堪忧。In recent years, renewable energy such as photovoltaic solar energy has been developed on a large scale. However, renewable energy power generation has unstable power generation and does not match power demand. Wind energy and solar energy need to combine uncertainty with the stability of power demand. The challenge is huge. Power generation is largely dependent on changes in weather, and if reasonable steps are not taken to improve this volatility, the future of renewable energy will be worrisome.
发明内容SUMMARY OF THE INVENTION
为了解决上述问题，本发明的目的在于提供一种以甲醇为载体的多能互补发电系统及其工作方法，在电力有富余的时候利用电解水制氢与二氧化碳生成甲醇，储存能量，在供电量不足的时候利用甲醇进行发电，产生的电量用于补充新能源发电的缺口，有利于新能源发电和供电系统的稳定，同时也实现了二氧化碳的转化和利用。In order to solve the above problems, the purpose of the present invention is to provide a multi-energy complementary power generation system with methanol as a carrier and a working method thereof. When it is insufficient, methanol is used for power generation, and the generated electricity is used to supplement the gap of new energy power generation, which is conducive to the stability of new energy power generation and power supply system, and also realizes the conversion and utilization of carbon dioxide.
本发明是通过以下技术方案来实现：The present invention is achieved through the following technical solutions:
本发明公开了一种以甲醇为载体的多能互补发电系统，包括新能源发电单元、电解水单元、氧气收集单元、氢气收集单元、二氧化碳制甲醇单元、甲醇储存单元、水处理单元和燃料发电单元；The invention discloses a multi-energy complementary power generation system using methanol as a carrier, which comprises a new energy power generation unit, an electrolysis water unit, an oxygen collection unit, a hydrogen collection unit, a carbon dioxide-to-methanol unit, a methanol storage unit, a water treatment unit and a fuel power generation unit unit;
电解水单元的氧气出口与氧气收集单元相连接，电解水单元的氢气出口与氢气收集单元相连接，氢气收集单元的氢气出口与二氧化碳制甲醇单 元的氢气入口连接，二氧化碳制甲醇单元的甲醇出口与甲醇储存单元连接，甲醇储存单元的甲醇出口与燃料发电单元的燃料入口连接，氧气收集单元的出口与燃料发电单元的氧气入口连接，燃料发电单元的二氧化碳出口与二氧化碳制甲醇单元的二氧化碳入口连接，燃料发电单元的废水出口与水处理单元的入口相连接，水处理单元的出口与电解水单元的入口连接；新能源发电单元通过电缆分别与电解水单元、二氧化碳制甲醇单元和电用户连接，燃料发电单元通过电缆与电用户连接。The oxygen outlet of the water electrolysis unit is connected to the oxygen collection unit, the hydrogen outlet of the water electrolysis unit is connected to the hydrogen collection unit, the hydrogen outlet of the hydrogen collection unit is connected to the hydrogen inlet of the carbon dioxide to methanol unit, and the methanol outlet of the carbon dioxide to methanol unit is connected to The methanol storage unit is connected, the methanol outlet of the methanol storage unit is connected with the fuel inlet of the fuel power generation unit, the outlet of the oxygen collection unit is connected with the oxygen inlet of the fuel power generation unit, the carbon dioxide outlet of the fuel power generation unit is connected with the carbon dioxide inlet of the carbon dioxide to methanol unit, The waste water outlet of the fuel power generation unit is connected with the inlet of the water treatment unit, and the outlet of the water treatment unit is connected with the inlet of the water electrolysis unit; the new energy power generation unit is connected with the water electrolysis unit, the carbon dioxide to methanol unit and the electricity user respectively through cables, and the fuel The power generating unit is connected to the electricity consumer by means of cables.
优选地，氢气收集单元与二氧化碳制甲醇单元之间的连接管路上设有氢气流量检测及控制装置，燃料发电单元与二氧化碳制甲醇单元之间的连接管路上设有二氧化碳流量检测及控制装置，氢气流量检测及控制装置和二氧化碳流量检测及控制装置均连接至系统的控制单元。Preferably, a hydrogen flow detection and control device is provided on the connecting pipeline between the hydrogen collection unit and the carbon dioxide to methanol unit, and a carbon dioxide flow detection and control device is provided on the connecting pipeline between the fuel power generation unit and the carbon dioxide to methanol unit. Both the flow detection and control unit and the carbon dioxide flow detection and control unit are connected to the control unit of the system.
优选地，氧气收集单元与燃料发电单元的氧气入口之间的连接管路上设有氧气流量检测及控制装置，甲醇储存单元的甲醇出口与燃料发电单元的燃料入口之间的连接管路上设有甲醇流量检测及控制装置，氧气流量检测及控制装置和甲醇流量检测及控制装置均连接至系统的控制单元。Preferably, the connecting pipeline between the oxygen collection unit and the oxygen inlet of the fuel power generation unit is provided with an oxygen flow detection and control device, and the connecting pipeline between the methanol outlet of the methanol storage unit and the fuel inlet of the fuel power generation unit is provided with methanol The flow detection and control device, the oxygen flow detection and control device and the methanol flow detection and control device are all connected to the control unit of the system.
优选地，水处理单元的出口与电解水单元的入口之间的连接管路上设有水流量检测及控制装置，新能源发电单元连接有电力调节与调度单元，电力调节与调度单元分别与电解水单元、二氧化碳制甲醇单元和电用户连接，水流量检测及控制装置与电力调节与调度单元均连接至系统的控制单元。Preferably, the connection pipeline between the outlet of the water treatment unit and the inlet of the electrolyzed water unit is provided with a water flow detection and control device, the new energy power generation unit is connected with a power regulation and dispatch unit, and the power regulation and dispatch unit is respectively connected to the electrolyzed water unit. The unit, the carbon dioxide-to-methanol unit and the electricity user are connected, and the water flow detection and control device and the power regulation and dispatch unit are all connected to the control unit of the system.
进一步优选地，电力调节与调度单元包括整流器、逆变器、变压器和电控柜；整流器一端与新能源发电单元连接，另一端与逆变器连接，逆变器与变压器连接，变压器分别与电解水单元、二氧化碳制甲醇单元和电用户连接，电控柜分别与整流器、逆变器和变压器连接。Further preferably, the power regulation and dispatching unit includes a rectifier, an inverter, a transformer and an electric control cabinet; one end of the rectifier is connected to the new energy power generation unit, the other end is connected to the inverter, the inverter is connected to the transformer, and the transformer is respectively connected to the electrolyzer. The water unit, the carbon dioxide-to-methanol unit and the electricity user are connected, and the electric control cabinet is respectively connected with the rectifier, the inverter and the transformer.
优选地，二氧化碳制甲醇单元包括电催化设备和化学催化设备。Preferably, the carbon dioxide to methanol unit includes an electrocatalytic device and a chemical catalytic device.
优选地，氧气收集单元包括氧气储罐，氢气收集单元包括氢气储罐，甲醇储存单元包括甲醇储罐，氧气储罐、氢气储罐和甲醇储罐均连接有气压计和温度计，气压计和温度计分别连接至系统的控制单元。Preferably, the oxygen collection unit includes an oxygen storage tank, the hydrogen collection unit includes a hydrogen storage tank, the methanol storage unit includes a methanol storage tank, and the oxygen storage tank, the hydrogen storage tank and the methanol storage tank are all connected with a barometer and a thermometer, and the barometer and the thermometer are connected Each is connected to the control unit of the system.
进一步优选地，氧气储罐、氢气储罐和甲醇储罐上均设有安全阀。Further preferably, the oxygen storage tank, the hydrogen storage tank and the methanol storage tank are all provided with safety valves.
本发明公开的上述以甲醇为载体的多能互补发电系统的工作方法，包 括：The working method of the above-mentioned multi-energy complementary power generation system with methanol as a carrier disclosed in the present invention includes:
新能源发电单元产生的电能供给电解水单元、二氧化碳制甲醇单元和电用户，电解水单元产生的氧气存储在氧气收集单元，产生的氢气存储在氢气收集单元；二氧化碳制甲醇单元制得的甲醇储存在甲醇储存单元；The electric energy generated by the new energy power generation unit is supplied to the water electrolysis unit, the carbon dioxide to methanol unit and electricity users. The oxygen generated by the water electrolysis unit is stored in the oxygen collection unit, and the generated hydrogen is stored in the hydrogen collection unit; the methanol produced by the carbon dioxide to methanol unit is stored in methanol storage units;
当新能源发电单元产生的电能不能满足电用户时，氧气收集单元将储存的氧气输送至燃料发电单元，甲醇储存单元将储存的甲醇输送至燃料发电单元，燃料发电单元发电供给电用户，产生的二氧化碳进入二氧化碳制甲醇单元，产生的废水经水处理单元处理后进入电解水单元。When the electric energy generated by the new energy power generation unit cannot satisfy the electricity users, the oxygen collection unit transports the stored oxygen to the fuel power generation unit, the methanol storage unit transports the stored methanol to the fuel power generation unit, and the fuel power generation unit generates electricity and supplies electricity to the electricity users. The carbon dioxide enters the carbon dioxide-to-methanol unit, and the generated wastewater is treated by the water treatment unit and then enters the water electrolysis unit.
优选地，二氧化碳制甲醇单元中H 2与CO 2的摩尔比为3.05～4.15。 Preferably, the molar ratio of H 2 to CO 2 in the carbon dioxide to methanol unit is 3.05-4.15.
与现有技术相比，本发明具有以下有益的技术效果：Compared with the prior art, the present invention has the following beneficial technical effects:
本发明公开的一种以甲醇为载体的多能互补发电系统，利用甲醇为储能载体，利用甲醇燃料具有容易储存且便于转化的特性，在电力有富余的时候利用电解水制氢与二氧化碳生成甲醇，储存能量，在供电量不足的时候利用甲醇进行发电，产生的电量用于补充新能源发电的缺口。传统的储能技术存在成本高、寿命短、安全差、回收难的问题，采用化学燃料储能，甲醇能量密度大，储能容量大，且不存在电池寿命和回收的问题，提高了能量的利用效率，减少了弃风弃光弃电现象，推动了新能源发电的技术发展，有利于新能源发电和供电系统的稳定；同时，也实现了二氧化碳的转化和利用，充分利用了新能源发电环保无污染的优势，降低了运营成本。The invention discloses a multi-energy complementary power generation system using methanol as a carrier, using methanol as an energy storage carrier, using methanol fuel to have the characteristics of easy storage and easy conversion, and using electrolyzed water to produce hydrogen and carbon dioxide when there is surplus electricity. Methanol, stores energy, and uses methanol to generate electricity when the power supply is insufficient, and the generated electricity is used to supplement the gap of new energy power generation. The traditional energy storage technology has the problems of high cost, short life, poor safety and difficult recovery. The use of chemical fuel energy storage has high energy density and large energy storage capacity of methanol, and there is no problem of battery life and recovery, which improves the energy consumption. The utilization efficiency reduces the phenomenon of abandoning wind, light and electricity, and promotes the technological development of new energy power generation, which is conducive to the stability of new energy power generation and power supply systems; at the same time, it also realizes the conversion and utilization of carbon dioxide, making full use of new energy power generation. The advantages of environmental protection and pollution-free reduce operating costs.
进一步地，设置氢气流量检测及控制装置和二氧化碳流量检测及控制装置，能够调节进入二氧化碳制甲醇单元原料气的碳氢比，提高二氧化碳制甲醇的产率。Further, a hydrogen flow detection and control device and a carbon dioxide flow detection and control device are provided, which can adjust the carbon-hydrogen ratio of the feed gas entering the carbon dioxide to methanol unit, and improve the yield of carbon dioxide to methanol.
进一步地，设置氧气流量检测及控制装置和甲醇流量检测及控制装置，能够控制进入燃料发电单元的原料量，达到控制发电量与电用户相匹配的目的。Further, an oxygen flow detection and control device and a methanol flow detection and control device are provided, which can control the amount of raw materials entering the fuel power generation unit, so as to achieve the purpose of controlling the power generation to match the electricity users.
进一步地，设置水流量检测及控制装置与电力调节与调度单元，能够控制水电解制氢单元原料水与富余电量匹配，提高水电解制氢的效率。Further, a water flow detection and control device and a power adjustment and scheduling unit are provided, which can control the matching between the raw material water of the water electrolysis hydrogen production unit and the surplus power, and improve the efficiency of water electrolysis hydrogen production.
进一步地，通过气压计和温度计能够实时监测氧气储罐、氢气储罐和甲醇储罐内的情况，并反馈给控制单元。Further, the conditions in the oxygen storage tank, the hydrogen storage tank and the methanol storage tank can be monitored in real time through the barometer and thermometer, and fed back to the control unit.
更进一步地，安全阀能够提高氧气储罐、氢气储罐和甲醇储罐的安全 性和稳定性。Furthermore, safety valves can improve the safety and stability of oxygen storage tanks, hydrogen storage tanks and methanol storage tanks.
本发明公开的上述以甲醇为载体的多能互补发电系统的工作方法，操作简单、自动化程度高，推动了新能源发电的技术发展，有利于新能源发电和供电系统的稳定；同时，也实现了二氧化碳的转化和利用，充分利用了新能源发电环保无污染的优势，降低了运营成本，具有良好的应用前景。The working method of the multi-energy complementary power generation system using methanol as a carrier disclosed in the present invention has the advantages of simple operation and high degree of automation, which promotes the technological development of new energy power generation and is beneficial to the stability of new energy power generation and power supply system; at the same time, it also realizes It realizes the conversion and utilization of carbon dioxide, makes full use of the advantages of new energy power generation, which is environmentally friendly and pollution-free, reduces operating costs, and has good application prospects.
附图说明Description of drawings
图1为本发明的整体结构示意图。FIG. 1 is a schematic diagram of the overall structure of the present invention.
图中：1-新能源发电单元、2-电解水单元、3-氧气收集单元、4-氢气收集单元、5-二氧化碳制甲醇单元、6-甲醇储存单元、7-水处理单元、8-燃料发电单元、9-电用户In the figure: 1- New energy power generation unit, 2- Water electrolysis unit, 3- Oxygen collection unit, 4- Hydrogen collection unit, 5- Carbon dioxide to methanol unit, 6- Methanol storage unit, 7- Water treatment unit, 8- Fuel Power generation unit, 9-electricity user
具体实施方式Detailed ways
下面结合附图对本发明做进一步详细描述，其内容是对本发明的解释而不是限定：Below in conjunction with accompanying drawing, the present invention is described in further detail, and its content is to explain rather than limit the present invention:
如图1，为本发明的以甲醇为载体的多能互补发电系统，包括新能源发电单元1、电解水单元2、氧气收集单元3、氢气收集单元4、二氧化碳制甲醇单元5、甲醇储存单元6、水处理单元7和燃料发电单元8。As shown in Figure 1, it is a multi-energy complementary power generation system using methanol as a carrier of the present invention, including a new energy power generation unit 1, an electrolyzed water unit 2, an oxygen collection unit 3, a hydrogen collection unit 4, a carbon dioxide to methanol unit 5, and a methanol storage unit. 6. Water treatment unit 7 and fuel power generation unit 8.
电解水单元2的氧气出口与氧气收集单元3相连接，电解水单元2的氢气出口与氢气收集单元4相连接，氢气收集单元4的氢气出口与二氧化碳制甲醇单元5的氢气入口连接，二氧化碳制甲醇单元5的甲醇出口与甲醇储存单元6连接，甲醇储存单元6的甲醇出口与燃料发电单元8的燃料入口连接，氧气收集单元3的出口与燃料发电单元8的氧气入口连接，燃料发电单元8的二氧化碳出口与二氧化碳制甲醇单元5的二氧化碳入口连接，燃料发电单元8的废水出口与水处理单元7的入口相连接，水处理单元7的出口与电解水单元2的入口连接；新能源发电单元1通过电缆分别与电解水单元2、二氧化碳制甲醇单元5和电用户8连接，燃料发电单元8通过电缆与电用户9连接。二氧化碳制甲醇单元5包括电催化设备和化学催化设备，能够根据新能源发电单元1的供电情况切换工艺路线。The oxygen outlet of the water electrolysis unit 2 is connected to the oxygen collection unit 3, the hydrogen outlet of the water electrolysis unit 2 is connected to the hydrogen collection unit 4, the hydrogen outlet of the hydrogen collection unit 4 is connected to the hydrogen inlet of the carbon dioxide to methanol unit 5, and the carbon dioxide to methanol unit 5 is connected. The methanol outlet of the methanol unit 5 is connected to the methanol storage unit 6, the methanol outlet of the methanol storage unit 6 is connected to the fuel inlet of the fuel power generation unit 8, the outlet of the oxygen collection unit 3 is connected to the oxygen inlet of the fuel power generation unit 8, and the fuel power generation unit 8 The carbon dioxide outlet is connected to the carbon dioxide inlet of the carbon dioxide to methanol unit 5, the waste water outlet of the fuel power generation unit 8 is connected to the inlet of the water treatment unit 7, and the outlet of the water treatment unit 7 is connected to the inlet of the water electrolysis unit 2; 1 is connected to the water electrolysis unit 2, the carbon dioxide to methanol unit 5 and the electricity user 8 respectively through cables, and the fuel power generation unit 8 is connected to the electricity user 9 through cables. The carbon dioxide to methanol unit 5 includes electrocatalytic equipment and chemical catalytic equipment, and can switch the process route according to the power supply of the new energy power generation unit 1 .
新能源发电单元1可采用余热发电或太阳能、光伏等可再生能源发电。The new energy power generation unit 1 can use waste heat to generate electricity or renewable energy such as solar energy and photovoltaics to generate electricity.
在本发明的一个较优的实施例中，氢气收集单元4与二氧化碳制甲醇单元5之间的连接管路上设有氢气流量检测及控制装置，燃料发电单元8与二氧化碳制甲醇单元5之间的连接管路上设有二氧化碳流量检测及控制装置，氢气流量检测及控制装置和二氧化碳流量检测及控制装置均连接至系统的控制单元。In a preferred embodiment of the present invention, the connecting pipeline between the hydrogen collection unit 4 and the carbon dioxide to methanol unit 5 is provided with a hydrogen flow detection and control device, and the connection between the fuel power generation unit 8 and the carbon dioxide to methanol unit 5 is provided with a hydrogen flow detection and control device. A carbon dioxide flow detection and control device is arranged on the connecting pipeline, and both the hydrogen flow detection and control device and the carbon dioxide flow detection and control device are connected to the control unit of the system.
在本发明的一个较优的实施例中，氧气收集单元3与燃料发电单元8的氧气入口之间的连接管路上设有氧气流量检测及控制装置，甲醇储存单元6的甲醇出口与燃料发电单元8的燃料入口之间的连接管路上设有甲醇流量检测及控制装置，氧气流量检测及控制装置和甲醇流量检测及控制装置均连接至系统的控制单元。In a preferred embodiment of the present invention, the connecting pipeline between the oxygen collection unit 3 and the oxygen inlet of the fuel power generation unit 8 is provided with an oxygen flow detection and control device, and the methanol outlet of the methanol storage unit 6 is connected to the fuel power generation unit. The connecting pipeline between the fuel inlets of 8 is provided with a methanol flow detection and control device, and the oxygen flow detection and control device and the methanol flow detection and control device are all connected to the control unit of the system.
在本发明的一个较优的实施例中，水处理单元7的出口与电解水单元2的入口之间的连接管路上设有水流量检测及控制装置，新能源发电单元1连接有电力调节与调度单元，电力调节与调度单元分别与电解水单元2、二氧化碳制甲醇单元5和电用户9连接，水流量检测及控制装置与电力调节与调度单元均连接至系统的控制单元。具体的，电力调节与调度单元包括整流器、逆变器、变压器和电控柜；整流器一端与新能源发电单元1连接，另一端与逆变器连接，逆变器与变压器连接，变压器分别与电解水单元2、二氧化碳制甲醇单元5和电用户9连接，电控柜分别与整流器、逆变器和变压器连接。In a preferred embodiment of the present invention, the connection pipeline between the outlet of the water treatment unit 7 and the inlet of the water electrolysis unit 2 is provided with a water flow detection and control device, and the new energy power generation unit 1 is connected with a power regulating and The dispatch unit, the power regulation and dispatch unit are respectively connected with the water electrolysis unit 2, the carbon dioxide to methanol unit 5 and the electricity user 9, and the water flow detection and control device and the power regulation and dispatch unit are connected to the control unit of the system. Specifically, the power regulation and dispatching unit includes a rectifier, an inverter, a transformer and an electric control cabinet; one end of the rectifier is connected to the new energy power generation unit 1, the other end is connected to the inverter, the inverter is connected to the transformer, and the transformer is respectively connected to the electrolyzer The water unit 2, the carbon dioxide-to-methanol unit 5 and the electricity user 9 are connected, and the electric control cabinet is respectively connected with the rectifier, the inverter and the transformer.
在本发明的一个较优的实施例中，氧气收集单元3包括氧气储罐，氢气收集单元4包括氢气储罐，甲醇储存单元6包括甲醇储罐，氧气储罐、氢气储罐和甲醇储罐均连接有气压计和温度计，气压计和温度计分别连接至系统的控制单元。优选地，氧气储罐、氢气储罐和甲醇储罐上均设有安全阀。In a preferred embodiment of the present invention, the oxygen collection unit 3 includes an oxygen storage tank, the hydrogen collection unit 4 includes a hydrogen storage tank, and the methanol storage unit 6 includes a methanol storage tank, an oxygen storage tank, a hydrogen storage tank and a methanol storage tank Both are connected with a barometer and a thermometer, and the barometer and the thermometer are respectively connected to the control unit of the system. Preferably, the oxygen storage tank, the hydrogen storage tank and the methanol storage tank are all provided with safety valves.
上述以甲醇为载体的多能互补发电系统的工作方法，包括：The working method of the above-mentioned multi-energy complementary power generation system using methanol as a carrier includes:
新能源发电单元1产生的电能供给电解水单元2、二氧化碳制甲醇单元5和电用户8，电解水单元2产生的氧气存储在氧气收集单元3，产生的氢气存储在氢气收集单元4；二氧化碳制甲醇单元5制得的甲醇储存在甲醇储存单元6；The electric energy generated by the new energy power generation unit 1 is supplied to the water electrolysis unit 2, the carbon dioxide to methanol unit 5 and the electricity user 8. The oxygen produced by the water electrolysis unit 2 is stored in the oxygen collection unit 3, and the generated hydrogen is stored in the hydrogen collection unit 4; The methanol produced in the methanol unit 5 is stored in the methanol storage unit 6;
当新能源发电单元1产生的电能不能满足电用户9时，氧气收集单元3将储存的氧气输送至燃料发电单元8，甲醇储存单元6将储存的甲醇输送至燃料发电单元8，燃料发电单元8发电供给电用户8，产生的二氧化碳进入二氧化碳制甲醇单元5，产生的废水经水处理单元7处理后进入电解水单元2。二氧化碳制甲醇单元5中H 2与CO 2的摩尔比为3.05～4.15。 When the electric energy generated by the new energy power generation unit 1 cannot satisfy the electricity user 9, the oxygen collection unit 3 transports the stored oxygen to the fuel power generation unit 8, the methanol storage unit 6 transports the stored methanol to the fuel power generation unit 8, and the fuel power generation unit 8 The power generation is supplied to the electricity user 8 , the generated carbon dioxide enters the carbon dioxide to methanol unit 5 , and the generated waste water is treated by the water treatment unit 7 and then enters the water electrolysis unit 2 . The molar ratio of H 2 to CO 2 in the carbon dioxide to methanol unit 5 is 3.05 to 4.15.
具体的操作流程如下：The specific operation process is as follows:
在风电或光伏等可再生能源发电量有富余的情况下。富余电量通过控制单元输送给电解水单元2和二氧化碳制甲醇单元5，启动电解水单元2，打开电解水单元2与氧气收集单元3和氢气收集单元4之间的控制阀，打开氢气收集单元4和二氧化碳制甲醇单元5的控制阀，打开新能源发电单元1与二氧化碳制甲醇单元5之间的控制阀，电解水产生的氢气和二氧化碳在二氧化碳制甲醇单元5发生反应生成甲醇，打开二氧化碳制甲醇单元5与甲醇储存单元6之间的控制阀，生成的甲醇在甲醇储存单元6进行储存，电解水产生的氧气在氧气收集单元储存3。In the case of surplus power generation from renewable energy sources such as wind power or photovoltaics. The surplus electricity is sent to the water electrolysis unit 2 and the carbon dioxide to methanol unit 5 through the control unit, start the water electrolysis unit 2, open the control valve between the water electrolysis unit 2 and the oxygen collection unit 3 and the hydrogen collection unit 4, and open the hydrogen collection unit 4 and the control valve of the carbon dioxide to methanol unit 5, open the control valve between the new energy power generation unit 1 and the carbon dioxide to methanol unit 5, the hydrogen and carbon dioxide produced by the electrolysis of water react in the carbon dioxide to methanol unit 5 to generate methanol, open the carbon dioxide to methanol The control valve between the unit 5 and the methanol storage unit 6, the generated methanol is stored in the methanol storage unit 6, and the oxygen produced by the electrolyzed water is stored in the oxygen collection unit 3.
在风电或光伏等可再生能源发电量无法满足用电侧需求的情况下。打开甲醇储存单元6与燃料发电系统单元8连接处的控制阀，打开氧气收集单元3与燃料发电系统单元8连接处的控制阀，使用甲醇储存单元6中储存的甲醇和氧气收集单元3的氧气进行发电，电量通过控制单元用于弥补新能源发电缺口，发电产生的二氧化碳供给二氧化碳制甲醇单元5，打开燃料发电单元8与水处理单元7之间的控制阀，燃料发电产生的水供给电解水单元2暂时储存，等待可再生能源发电系统有富余电量时进行电解水制氢。In the case where the power generation from renewable energy sources such as wind power or photovoltaic cannot meet the demand on the power consumption side. Open the control valve at the connection between the methanol storage unit 6 and the fuel power generation system unit 8, open the control valve at the connection between the oxygen collection unit 3 and the fuel power generation system unit 8, use the methanol stored in the methanol storage unit 6 and the oxygen in the oxygen collection unit 3 To generate electricity, the electricity is used to make up for the new energy generation gap through the control unit, the carbon dioxide generated by the electricity generation is supplied to the carbon dioxide to methanol unit 5, the control valve between the fuel generation unit 8 and the water treatment unit 7 is opened, and the water generated by the fuel generation is supplied to the electrolyzed water. The unit 2 is temporarily stored, and the electrolysis of water is carried out to produce hydrogen when the renewable energy power generation system has surplus electricity.
以上所述，仅为本发明实施方式中的部分，本发明中虽然使用了部分术语，但并不排除使用其它术语的可能性。使用这些术语仅仅是为了方便的描述和解释本发明的本质，把它们解释成任何一种附加的限制都是与本发明精神相违背的。以上所述仅以实施例来进一步说明本发明的内容，以便于更容易理解，但不代表本发明的实施方式仅限于此，任何依本发明所做的技术延伸或再创造，均受本发明的保护。The above descriptions are only part of the embodiments of the present invention. Although some terms are used in the present invention, the possibility of using other terms is not excluded. These terms are used only for convenience in describing and explaining the essence of the present invention, and it is contrary to the spirit of the present invention to interpret them as any kind of additional limitation. The above is only to further illustrate the content of the present invention with examples, so as to facilitate easier understanding, but it does not mean that the embodiments of the present invention are limited to this. Any technical extension or re-creation made according to the present invention is subject to the protection of.

Claims (10)

  1. 一种以甲醇为载体的多能互补发电系统，其特征在于，包括新能源发电单元(1)、电解水单元(2)、氧气收集单元(3)、氢气收集单元(4)、二氧化碳制甲醇单元(5)、甲醇储存单元(6)、水处理单元(7)和燃料发电单元(8)；A multi-energy complementary power generation system using methanol as a carrier, characterized in that it comprises a new energy power generation unit (1), an electrolyzed water unit (2), an oxygen collection unit (3), a hydrogen collection unit (4), and carbon dioxide to methanol a unit (5), a methanol storage unit (6), a water treatment unit (7) and a fuel power generation unit (8);
    电解水单元(2)的氧气出口与氧气收集单元(3)相连接，电解水单元(2)的氢气出口与氢气收集单元(4)相连接，氢气收集单元(4)的氢气出口与二氧化碳制甲醇单元(5)的氢气入口连接，二氧化碳制甲醇单元(5)的甲醇出口与甲醇储存单元(6)连接，甲醇储存单元(6)的甲醇出口与燃料发电单元(8)的燃料入口连接，氧气收集单元(3)的出口与燃料发电单元(8)的氧气入口连接，燃料发电单元(8)的二氧化碳出口与二氧化碳制甲醇单元(5)的二氧化碳入口连接，燃料发电单元(8)的废水出口与水处理单元(7)的入口相连接，水处理单元(7)的出口与电解水单元(2)的入口连接；新能源发电单元(1)通过电缆分别与电解水单元(2)、二氧化碳制甲醇单元(5)和电用户(8)连接，燃料发电单元(8)通过电缆与电用户(9)连接。The oxygen outlet of the water electrolysis unit (2) is connected to the oxygen collection unit (3), the hydrogen outlet of the water electrolysis unit (2) is connected to the hydrogen collection unit (4), and the hydrogen outlet of the hydrogen collection unit (4) is connected to the carbon dioxide generator. The hydrogen inlet of the methanol unit (5) is connected, the methanol outlet of the carbon dioxide to methanol unit (5) is connected with the methanol storage unit (6), and the methanol outlet of the methanol storage unit (6) is connected with the fuel inlet of the fuel power generation unit (8), The outlet of the oxygen collection unit (3) is connected to the oxygen inlet of the fuel power generation unit (8), the carbon dioxide outlet of the fuel power generation unit (8) is connected to the carbon dioxide inlet of the carbon dioxide to methanol unit (5), and the waste water of the fuel power generation unit (8) The outlet is connected with the inlet of the water treatment unit (7), and the outlet of the water treatment unit (7) is connected with the inlet of the water electrolysis unit (2); the new energy power generation unit (1) is connected to the water electrolysis unit (2), The carbon dioxide-to-methanol unit (5) is connected with the electricity user (8), and the fuel power generation unit (8) is connected with the electricity user (9) through a cable.
  2. 根据权利要求1所述的以甲醇为载体的多能互补发电系统，其特征在于，氢气收集单元(4)与二氧化碳制甲醇单元(5)之间的连接管路上设有氢气流量检测及控制装置，燃料发电单元(8)与二氧化碳制甲醇单元(5)之间的连接管路上设有二氧化碳流量检测及控制装置，氢气流量检测及控制装置和二氧化碳流量检测及控制装置均连接至系统的控制单元。The multi-energy complementary power generation system using methanol as a carrier according to claim 1, characterized in that a hydrogen flow detection and control device is provided on the connecting pipeline between the hydrogen collection unit (4) and the carbon dioxide-to-methanol unit (5). , a carbon dioxide flow detection and control device is provided on the connecting pipeline between the fuel power generation unit (8) and the carbon dioxide to methanol unit (5), and the hydrogen flow detection and control device and the carbon dioxide flow detection and control device are connected to the control unit of the system .
  3. 根据权利要求1所述的以甲醇为载体的多能互补发电系统，其特征在于，氧气收集单元(3)与燃料发电单元(8)的氧气入口之间的连接管路上设有氧气流量检测及控制装置，甲醇储存单元(6)的甲醇出口与燃料发电单元(8)的燃料入口之间的连接管路上设有甲醇流量检测及控制装置，氧气流量检测及控制装置和甲醇流量检测及控制装置均连接至系统的控制单元。The multi-energy complementary power generation system using methanol as a carrier according to claim 1, wherein the connecting pipeline between the oxygen collection unit (3) and the oxygen inlet of the fuel power generation unit (8) is provided with oxygen flow detection and Control device, the connecting pipeline between the methanol outlet of the methanol storage unit (6) and the fuel inlet of the fuel power generation unit (8) is provided with a methanol flow detection and control device, an oxygen flow detection and control device, and a methanol flow detection and control device are connected to the control unit of the system.
  4. 根据权利要求1所述的以甲醇为载体的多能互补发电系统，其特征在于，水处理单元(7)的出口与电解水单元(2)的入口之间的连接管路上设有水流量检测及控制装置，新能源发电单元(1)连接有电力调节与调 度单元，电力调节与调度单元分别与电解水单元(2)、二氧化碳制甲醇单元(5)和电用户(9)连接，水流量检测及控制装置与电力调节与调度单元均连接至系统的控制单元。The multi-energy complementary power generation system using methanol as a carrier according to claim 1, characterized in that a water flow detection device is provided on the connecting pipeline between the outlet of the water treatment unit (7) and the inlet of the water electrolysis unit (2). and a control device, the new energy power generation unit (1) is connected with a power regulation and dispatch unit, and the power regulation and dispatch unit is respectively connected with the water electrolysis unit (2), the carbon dioxide to methanol unit (5) and the electricity user (9), and the water flow rate is Both the detection and control device and the power conditioning and scheduling unit are connected to the control unit of the system.
  5. 根据权利要求4所述的以甲醇为载体的多能互补发电系统，其特征在于，电力调节与调度单元包括整流器、逆变器、变压器和电控柜；整流器一端与新能源发电单元(1)连接，另一端与逆变器连接，逆变器与变压器连接，变压器分别与电解水单元(2)、二氧化碳制甲醇单元(5)和电用户(9)连接，电控柜分别与整流器、逆变器和变压器连接。The multi-energy complementary power generation system using methanol as a carrier according to claim 4, wherein the power regulation and dispatch unit comprises a rectifier, an inverter, a transformer and an electric control cabinet; one end of the rectifier is connected to the new energy power generation unit (1) connection, the other end is connected to the inverter, the inverter is connected to the transformer, the transformer is connected to the electrolysis water unit (2), the carbon dioxide to methanol unit (5) and the electricity user (9) respectively, and the electric control cabinet is respectively connected to the rectifier, the inverter Transformer and transformer connection.
  6. 根据权利要求1所述的以甲醇为载体的多能互补发电系统，其特征在于，二氧化碳制甲醇单元(5)包括电催化设备和化学催化设备。The multi-energy complementary power generation system using methanol as a carrier according to claim 1, characterized in that the carbon dioxide to methanol unit (5) comprises electrocatalytic equipment and chemical catalytic equipment.
  7. 根据权利要求1所述的以甲醇为载体的多能互补发电系统，其特征在于，氧气收集单元(3)包括氧气储罐，氢气收集单元(4)包括氢气储罐，甲醇储存单元(6)包括甲醇储罐，氧气储罐、氢气储罐和甲醇储罐均连接有气压计和温度计，气压计和温度计分别连接至系统的控制单元。The multi-energy complementary power generation system using methanol as a carrier according to claim 1, wherein the oxygen collection unit (3) includes an oxygen storage tank, the hydrogen collection unit (4) includes a hydrogen storage tank, and the methanol storage unit (6) Including the methanol storage tank, the oxygen storage tank, the hydrogen storage tank and the methanol storage tank are all connected with a barometer and a thermometer, and the barometer and the thermometer are respectively connected to the control unit of the system.
  8. 根据权利要求7所述的以甲醇为载体的多能互补发电系统，其特征在于，氧气储罐、氢气储罐和甲醇储罐上均设有安全阀。The multi-energy complementary power generation system using methanol as a carrier according to claim 7, wherein the oxygen storage tank, the hydrogen storage tank and the methanol storage tank are all provided with safety valves.
  9. 根据权利要求1～8任意一项所述的以甲醇为载体的多能互补发电系统的工作方法，其特征在于，包括：The working method of a multi-energy complementary power generation system using methanol as a carrier according to any one of claims 1 to 8, characterized in that, comprising:
    新能源发电单元(1)产生的电能供给电解水单元(2)、二氧化碳制甲醇单元(5)和电用户(8)，电解水单元(2)产生的氧气存储在氧气收集单元(3)，产生的氢气存储在氢气收集单元(4)；二氧化碳制甲醇单元(5)制得的甲醇储存在甲醇储存单元(6)；The electric energy generated by the new energy power generation unit (1) is supplied to the water electrolysis unit (2), the carbon dioxide to methanol unit (5) and the electricity user (8), and the oxygen generated by the water electrolysis unit (2) is stored in the oxygen collection unit (3), The generated hydrogen is stored in the hydrogen collection unit (4); the methanol produced by the carbon dioxide to methanol unit (5) is stored in the methanol storage unit (6);
    当新能源发电单元(1)产生的电能不能满足电用户(9)时，氧气收集单元(3)将储存的氧气输送至燃料发电单元(8)，甲醇储存单元(6)将储存的甲醇输送至燃料发电单元(8)，燃料发电单元(8)发电供给电用户(8)，产生的二氧化碳进入二氧化碳制甲醇单元(5)，产生的废水经水处理单元(7)处理后进入电解水单元(2)。When the electric energy generated by the new energy power generation unit (1) cannot satisfy the electricity user (9), the oxygen collection unit (3) transports the stored oxygen to the fuel power generation unit (8), and the methanol storage unit (6) transports the stored methanol To the fuel power generation unit (8), the fuel power generation unit (8) generates electricity and supplies electricity to the electricity user (8), the generated carbon dioxide enters the carbon dioxide to methanol unit (5), and the generated waste water is processed by the water treatment unit (7) and then enters the electrolysis water unit. (2).
  10. 根据权利要求9所述的以甲醇为载体的多能互补发电系统的工作方法，其特征在于，二氧化碳制甲醇单元(5)中H 2与CO 2的摩尔比为3.05～4.15。 The working method of a multi-energy complementary power generation system using methanol as a carrier according to claim 9, characterized in that the molar ratio of H 2 to CO 2 in the carbon dioxide to methanol unit (5) is 3.05-4.15.
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113054733A (en) * 2021-03-22 2021-06-29 中国华能集团清洁能源技术研究院有限公司 Multi-energy complementary power generation system with methanol as carrier and working method thereof
CN113659182A (en) * 2021-09-10 2021-11-16 中国华能集团清洁能源技术研究院有限公司 System and method for peak shaving of renewable energy power generation by using carbon dioxide
CN114000979B (en) * 2021-10-29 2023-12-29 京能（锡林郭勒）发电有限公司 Electric water-hydrogen-methanol multi-combined energy island and method
CN113944544A (en) * 2021-11-08 2022-01-18 华北电力大学 Energy system based on renewable energy and hydrogen methanolization and energy utilization method
CN115806469A (en) * 2022-12-26 2023-03-17 中国重汽集团济南动力有限公司 Biomass carbon neutralization fuel overall energy storage production method based on alcohol-water fixation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002252019A (en) * 2001-02-26 2002-09-06 Susumu Kinoshita Electric power supply system using natural law
CN105024628A (en) * 2015-06-26 2015-11-04 广东合即得能源科技有限公司 Energy complementation self power supply system and power supply method
CN206947968U (en) * 2016-04-11 2018-01-30 上海合既得动氢机器有限公司 Energy circulation type charging system
CN113054733A (en) * 2021-03-22 2021-06-29 中国华能集团清洁能源技术研究院有限公司 Multi-energy complementary power generation system with methanol as carrier and working method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105752311A (en) * 2016-04-11 2016-07-13 上海合既得动氢机器有限公司 Carbon dioxide cycled water-hydrogen-powered hot-air balloon
CN105751914A (en) * 2016-04-11 2016-07-13 上海合既得动氢机器有限公司 Carbon dioxide cycled water-hydrogen-powered transportation means
CN106285802B (en) * 2016-09-29 2018-03-09 中国化学工程第七建设有限公司 A kind of electricity-generating method and TRT
KR20200095051A (en) * 2019-01-31 2020-08-10 (주)케이워터크레프트 Energy self-contained watercar system using electrolyzer and hydrogen fuel cell
CN109950574B (en) * 2019-02-18 2021-01-12 德州新动能铁塔发电有限公司 Water hydrogen power generation system based on natural energy

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002252019A (en) * 2001-02-26 2002-09-06 Susumu Kinoshita Electric power supply system using natural law
CN105024628A (en) * 2015-06-26 2015-11-04 广东合即得能源科技有限公司 Energy complementation self power supply system and power supply method
CN206947968U (en) * 2016-04-11 2018-01-30 上海合既得动氢机器有限公司 Energy circulation type charging system
CN113054733A (en) * 2021-03-22 2021-06-29 中国华能集团清洁能源技术研究院有限公司 Multi-energy complementary power generation system with methanol as carrier and working method thereof

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