Prediction of syngas quality for two-stage gasification of selected waste feedstocks

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摘要：

This paper compares the syngas produced from methane with the syngas obtained from the gasification, in a two-stage reactor, of various waste feedstocks. The syngas composition and the gasification conditions were simulated using a simple thermodynamic model. The waste feedstocks considered are: landfill gas, waste oil, municipal solid waste (MSW) typical of a low-income country, the same MSW blended with landfill gas, refuse derived fuel (RDF) made from the same MSW, the same RDF blended with waste oil and a MSW typical of a high-income country. Energy content, the sum of H 2 and CO gas percentages, and the ratio of H 2 to CO are considered as measures of syngas quality. The simulation shows that landfill gas gives the best results in terms of both H 2 + CO and H 2/CO, and that the MSW of low-income countries can be expected to provide inferior syngas on all three quality measures. Co-gasification of the MSW from low-income countries with landfill gas, and the mixture of waste oil with RDF from low-income MSW are considered as options to improve gas quality.

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关键词：

Gasification Waste blend Thermodynamic prediction Syngas quality

DOI：

10.1016/j.wasman.2004.02.014

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年份：

2004