Gas power circulation system and circulation method

Abstract

The invention supplies a fuel gas power cycling system and the cycling method. It includes the following steps: it combines O2 / CO2 chemical heat backing power cycling and ammonia absorbing refrigeration system, the compressed CO2 gas taking reforming reaction with natural gas in reforming reactor, and the gas after reforming taking burning reaction with pure oxygen in burning room; the high temperature would coming into turbine and expanding to apply; the turbine exhausting and supplying heat to reforming reactor and supplying heat to ammonia absorbing refrigerating cycling system; the cold quantity would be used to cool CO2 and output; the condenser would separate water and CO2, and outputting the water; part of CO2 would be used to take driving cycling, and the other part would be transformed to liquid state and output from system. The invention could generate electric and cold, and has CO2 trapping function and water saving function.

Description

technical field [0001] The invention proposes a gas power cycle system and a cycle method, which involve chemical recuperation, O 2 / O 2 System combination and circulation method of power cycle and ammonia absorption refrigeration cycle. Can be used in natural gas power generation systems. Background technique [0002] The chemical regenerative power cycle is a power generation system that effectively utilizes the waste heat of the turbine exhaust. Using the method of chemical recuperation, the system recovers the waste heat of the high-temperature exhaust gas of the turbine, which is used for the reforming reaction of fuels such as methane, methanol or dimethyl ether, and converts it into H 2 mixed fuel with CO. The combustion heat of the reformed mixed fuel is greater than that of the unreformed fuel, and the low-grade waste heat recovered by chemical recuperation is converted into the combustion heat of the fuel, which is released at high temperature. The reformed ga...

AI Technical Summary

Problems solved by technology

The power generation efficiency of the system has reached 44.3%. This cycle does not use the chemical heat recovery method. The recovered waste heat from the turbine exhaust is only used as a heat source for the corresponding logistics for general heating, which has a limited effect on improving the power generation efficiency of the system.

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