De Filippis Paolo, Borgianni Carlo, Paolucci Martino, Pochetti Fausto
Department of Chemical Engineering, University of Rome La Sapienza, Via Eudossiana 18, 00184 Rome, Italy.
Waste Manag. 2004;24(6):633-9. doi: 10.1016/j.wasman.2004.02.014.
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 H2 and CO gas percentages, and the ratio of H2 to CO are considered as measures of syngas quality. The simulation shows that landfill gas gives the best results in terms of both H2+CO and H2/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.
本文比较了由甲烷产生的合成气与在两段式反应器中对各种废料原料进行气化所得到的合成气。使用一个简单的热力学模型对合成气组成和气化条件进行了模拟。所考虑的废料原料有：垃圾填埋气、废油、低收入国家典型的城市固体废物（MSW）、与垃圾填埋气混合的同样的MSW、由同样的MSW制成的垃圾衍生燃料（RDF）、与废油混合的同样的RDF以及高收入国家典型的MSW。能量含量、H₂和CO气体百分比之和以及H₂与CO的比率被视为合成气质量的衡量指标。模拟结果表明，就H₂+CO和H₂/CO而言，垃圾填埋气产生的结果最佳，并且预计低收入国家的MSW在所有三项质量指标上都能提供较差的合成气。低收入国家的MSW与垃圾填埋气的共气化以及废油与来自低收入MSW的RDF的混合物被视为改善气体质量的选择。
