Steam-attemperation-based oxygen-enriched combustion and natural gas hydrate development co-production system and method

An oxygen-enriched combustion and natural gas technology, which is applied in the combustion method, steam generation, combustion air/fuel supply, etc., can solve the problems of poor fuel supply continuity, large natural gas transportation volume, and high separation energy consumption, so as to reduce renovation costs. , The effect of sufficient fuel combustion and protection of the atmospheric environment

Pending Publication Date: 2018-04-20
YANGTZE UNIVERSITY
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Problems solved by technology

For gas-fired power plants near the South China Sea, the natural gas transmission volume is large, the transmission distance is long, and the con

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  • Steam-attemperation-based oxygen-enriched combustion and natural gas hydrate development co-production system and method

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[0026] The implementation of the present invention will be described in detail below in conjunction with the implementation cases, but they do not constitute a limitation to the present invention, and are merely examples. At the same time, the advantages of the present invention will become clearer and easier to understand.

[0027] Such as figure 1 The present invention shows an oxy-fuel combustion and natural gas hydrate co-production system based on steam temperature adjustment, including an air separation device 1, a heat exchanger 2, a gas boiler 3, a circulating water heater 4, and a flue gas condenser 5 , The compression cooling device 6, and the natural gas hydrate storage system 8. The air separation device 1 is provided with an air inlet 1.1, a nitrogen outlet 1.2 and an oxygen-enriched outlet 1.3, the oxygen-enriched outlet 1.3 of the air separation device 1 and the enrichment of the heat exchanger 2 The oxygen inlet 2.1 is connected, and the high temperature oxygen o...

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Abstract

The invention discloses a steam-attemperation-based oxygen-enriched combustion and natural gas hydrate development co-production system and method. The system comprises an air separator, a heat exchanger, a gas-fired boiler, a circulating water heater, a flue gas condenser, a compressing-cooling device and a natural gas hydrate storage system, wherein an oxygen-enriched outlet of the air separatoris connected with an oxygen-enriched inlet of the heat exchanger; a high-temperature oxygen outlet of the heat exchanger is connected with a high-temperature oxygen inlet of the gas-fired boiler; a flue gas outlet of the gas-fired boiler is connected with a high-temperature flue gas inlet of the heat exchanger; a low-temperature flue gas outlet of the heat exchanger is connected with a flue gas inlet of the flue gas condenser; and a gas outlet of the flue gas condenser is connected with a gas inlet of the compressing-cooling device. By adoption of the system disclosed by the invention, a power plant is self-sufficient in fuel, no any residue and exhaust gas are generated after combustion, the pollutant discharge, the quantity of follow-up gas processing equipment and the high CO2 capturing cost are reduced, and the double value of economy and environmental protection is achieved.

Description

technical field [0001] The invention relates to the technical field of carbon dioxide capture, sequestration and new energy development, in particular to an oxygen-enriched combustion and natural gas hydrate co-production system and method based on steam temperature regulation. Background technique [0002] With rapid growth in energy demand and increased use of fossil fuels, the greenhouse gas CO 2 emissions have increased, leading to global warming. In order to achieve the sustainable development of energy and environment, we should creatively explore and develop integrated technologies that can not only develop new energy but also solve environmental problems (greenhouse effect), so as to achieve the purpose of energy saving and emission reduction. [0003] At present, my country has successfully completed the trial mining of combustible ice (natural gas hydrate) in the South China Sea, marking that my country has become the first country in the world to achieve continuo...

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Application Information

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IPC IPC(8): F22B31/00F25J3/04F23L7/00F23K5/00F23J15/06F01D15/10C10L3/10
CPCF01D15/10F22B31/00F23J15/06F23K5/002F23L7/005F23L7/007F25J3/04787C10L3/10F23L2900/07005F23L2900/07009Y02E20/34Y02E20/30
Inventor 张引弟胡多多霍文涛
Owner YANGTZE UNIVERSITY
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