Coal-fired power plant carbon dioxide resource auxiliary agriculture integrated utilization system

Abstract

The invention provides a coal-fired power plant carbon dioxide resource auxiliary agriculture integrated utilization system. The system comprises a coal-fired power generation system, a denitration and desulfurization system, a monoethanolamine CO2 absorption system and a CO2 resource utilization system. The coal-fired power generation system comprises a coal economizer, a boiler, a steam turbine, a condenser and a condensate pump which are connected in sequence. The denitration and desulfurization system comprises a liquid ammonia evaporator, an ammonia / air mixer, ammonia injection grid equipment, a denitration reactor, an air preheater, an electric precipitator and a desulfurization system which are connected in sequence. The monoethanolamine CO2 absorption system comprises an absorption tower, a first solution pump, a second solution heat exchanger, a regeneration tower, a reboiler, a solar heat collector and an energy accumulator which are connected in sequence. The CO2 resource utilization system comprises a CO2 collector, a micro-nano bubble generation device, a CO2 water-soluble fertilizer mixing device, a water-soluble fertilizer tank and a CO2 water-soluble fertilizer irrigation system which are connected in sequence. According to the invention, resource utilization of CO2 in the power plant can be achieved, and the greenhouse effect is relieved.

Description

technical field [0001] The invention relates to a coal-fired unit and fertilizer irrigation equipment, in particular to a carbon dioxide resource recovery auxiliary agricultural integrated utilization system for a coal-fired power plant. Background technique [0002] According to the "UNEP Emissions Gap Report" issued by the United Nations Environment Program (UNEP) in late 2013, the emission of greenhouse gases in 2020 is likely to be equivalent to 8 to 12 billion tons of CO2 equivalent, which exceeds the proposed increase in world temperature Below the recommended level of 2°C. In recent years, according to a large number of experiments, it has been proved that there is a second way of plant carbon absorption and root absorption, and although the amount absorbed is small, its effect is no less than leaf absorption. The method of increasing crop yield by releasing CO2 to crops is currently mainly used in facility agriculture, but has not been widely used in large-scale cro...

AI Technical Summary

Problems solved by technology

The absorbent and reducing agent in the post-combustion decarbonization and denitrification system need to consume a lot of heat energy. The traditional method is to use the steam extraction of the unit as the heat source of the decarbonization and denitrification system, which is quite unfavorable to the economical and safe operation of the unit.

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