Abstract:
In a continuous feeding fixed bed furnace, researches were conducted on the influence of simulated rural solids with different component proportions on the producing characteristics of pyrolysis gas and tar. Experimental results show that, compared with single component, the pyrolysis of rural solid waste with mixed components is more conducive to promoting the sufficient cracking of materials, reducing the tar production, and improving the cold gas efficiency (CGE) when the pyrolysis temperature is 800 ℃. The pyrolysis with mixed components can reduce the content of O element and corrosivity of tar, while the presence of chlorine-containing substance (polyvinyl chloride in this paper) could effectively promote the decomposition of functional groups containing N or S element in pyrolysis tar, which ensures that tar has a higher heat value and a better stability. The pyrolysis with mixed components is effective in reducing heterocyclic and alicyclic compounds in tar, but the proportion change of chain compounds and aromatic compounds is related to the component proportions of simulated rural solid waste.