Zero-carbon-emission combined cooling heating and power system based on solar energy methanol decomposition synthesis cycle and method

Abstract

The invention discloses a zero-carbon-emission combined cooling heating and power system based on solar energy methanol decomposition synthesis cycle and a method, and belongs to the field of distributed energy sources. According to the method, methanol is heated and decomposed by solar energy to obtain carbon monoxide and hydrogen, and low-grade solar energy is converted into high-grade chemical energy to be stored; in an synthesis gas internal combustion engine, carbon monoxide and hydrogen are combusted to generate carbon dioxide and water, a rotating crankshaft drives a generator to generate electric energy to supply power, multi-stage waste heat generated by the system can supply heat, an absorption refrigeration device can supply cold, and low-temperature waste heat can be utilized to generate power through an organic Rankine cycle device; and power is supplied to a load and an electrolytic cell through a photovoltaic device, the electrolytic cell electrolyzes water generated in the synthesis gas internal combustion engine to produce hydrogen, methanol is synthesized again with carbon dioxide generated in the synthesis gas internal combustion engine, and carbon circulation is achieved. The system inputs solar energy and outputs cold and hot electric energy, expensive energy storage equipment is not needed, the energy efficiency is high, and carbon emission is zero.

Description

technical field [0001] The invention relates to a combined cooling, heating and power system, in particular to a zero-carbon emission combined cooling, heating and power system and method based on solar methanol decomposition synthesis cycle, which belongs to the field of distributed energy. Background technique [0002] As the main direction and form of distributed energy development, the combined cooling, heating and power system is a comprehensive energy production and energy consumption system based on energy cascade utilization. Because of its multi-functional goals such as higher energy utilization rate, lower energy cost, higher energy supply security and better environmental protection performance, it has gradually been applied to commercial office buildings, hospitals and other urban public complex buildings. [0003] At present, most combined heat and power systems use primary energy such as natural gas and biomass gas or secondary energy such as methanol as fuel, ...

AI Technical Summary

Problems solved by technology

[0003] At present, most combined heat and power systems use primary energy such as natural gas and biomass gas or secondary energy such as methanol as fuel, which will generate a large amount of carbon dioxide and cause harm to the environment. At the same time, its fuel cannot achieve self-sufficiency

Images