Biomass pure oxygen combustion power generation system and method

Abstract

The invention discloses a biomass pure oxygen combustion power generation system and method. The method comprises the steps that hydrogen and oxygen are obtained through water electrolysis, and the oxygen is fed into a pure oxygen combustion boiler; the oxygen and fuel are burnt in the pure oxygen combustion boiler, generated original flue gas is discharged to a flue gas purification system, the heat generated by combustion of the biomass fuel is fed into a steam turbine through steam of a steam pipeline to do work, a generator of a power plant is driven to generate power, meanwhile, power is supplied to a water electrolysis hydrogen production system, and heat energy conversion of combustion of the biomass fuel is achieved; and the flue gas purification system processes the original flue gas to obtain solid waste and purified flue gas, the purified flue gas is discharged into a carbon dioxide capture system, the purified flue gas is treated to obtain pure carbon dioxide, and the pure carbon dioxide is collected, stored and utilized. According to the biomass pure oxygen combustion power generation system and method, residual electricity in production of energy sources such as abandoned wind, abandoned light and abandoned water is converted into the oxygen and hydrogen energy, the oxygen is adopted to support combustion of the biomass fuel, the generated heat, waste materials and waste gas are stored, energy conversion is achieved while the emission amount of the carbon dioxide can be reduced, and negative emission of carbon is achieved.

Description

technical field [0001] The invention relates to the field of energy saving and emission reduction, in particular to a biomass pure oxygen combustion power generation system and method. Background technique [0002] Power plants abandon wind, light, and water every year. It is necessary to develop a large-scale energy storage system to meet the consumption of green energy by the grid. Hydrogen energy has the characteristics of high energy density, cleanness and high efficiency, and is regarded as the clean energy with the most development potential in the 21st century. [0003] More than 99% of the current global hydrogen consumption is produced from fossil fuels. Direct production of hydrogen from fossil fuels would result in significant carbon emissions, contrary to our goal of carbon neutrality. The high cost of electrolyzing water to produce hydrogen is mainly due to electricity costs, which are more than twice that of fossil fuels. Coal-fired power plants are major em...

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Problems solved by technology

[0005] Aiming at the problems of carbon emissions from biomass combustion and high combustion costs in the prior art, the present invention provides a biomass pure oxygen combustion power generation system and method

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