Power generation technique based on pyrolyzation and gasification of refuse derived fuel (RDF) prepared from household refuse and incineration of fuel gas

Abstract

The invention discloses a power generation technique based on pyrolyzation and gasification of refuse derived fuel (RDF) prepared from household refuse and incineration of fuel gas. The power generation method comprises the steps that the household refuse is sorted, pulverized and dried and then is made into the solid RDF; pyrolyzation and gasification are conducted on the solid RDF, so that combustible gas is generated; the combustible gas is incinerated; steam is prepared from hot air obtained through incineration through heat exchange; and the steam is introduced into a steam power generator for power generation. According to the power generation technique based on pyrolyzation and gasification of the RDF prepared from the household refuse and incineration of the fuel gas, the household refuse is made into the combustible solid RDF, and thus formation of dioxin can be effectively restrained; after prepared bars are formed, the moisture content is decreased, the heat value is increased, and the power generation efficiency is improved; the dioxin is completely decomposed by conducting heat-storage incineration of the generated combustible gas through secondary gas at the temperature over 850 DEG C, and waste heat is used for drying the refuse; smoke emission hardly exists under the adsorption action of the pulverized refuse.

Description

technical field [0001] The invention relates to the technical field of domestic waste treatment, in particular to a process for preparing RDF pyrolysis gasification gas incineration power generation from domestic waste. Background technique [0002] With the development of society, the acceleration of urbanization, the increase of urban population, the improvement of people's living standards, the output of municipal solid waste is constantly increasing, the composition of domestic solid waste is becoming more and more complex, and the pollution of the environment and the harm to people's health are becoming more and more serious. , but also limit the development of the city. In addition, my country's coal and oil resource reserves are not rich, and the per capita share is low, facing an energy crisis. Moreover, during the use of petrochemical energy, a large amount of harmful gases are released, polluting the environment and affecting people's health. Electric energy is cl...

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Problems solved by technology

[0004] The Chinese patent with the application number 201220184786.3 discloses a utility model patent entitled "Gas-steam combined cycle power generation device derived from garbage". A utility model patent for a device", the Chinese patent application number 201220382981.7 discloses a utility model patent named "a combined gas-steam combined cycle power generation system with sludge and garbage derived fuel". To achieve the above purpose, but it is common that the heat energy cannot be fully utilized, the tail gas is directly or indirectly discharged into the air after simple treatment, the heat energy in the tail gas is wasted, and the tail gas containing heat energy will not only cause the greenhouse effect but also cause secondary pollution, garbage, etc. Direct stacking or landfilling of slag produced after incineration or pyrolysis and gasification will also affect soil pollution and water sources

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