【作者】 邵聪； 诸林； 何阳东； 何京玲；

【Author】 Shao Cong;Zhu Lin;He Yangdong;He Jingling;College of Chemistry and Chemical Engineering,Southwest Petroleum University;

【机构】 西南石油大学化学化工学院；

【摘要】 运用Aspen Plus模拟软件对比分析了纸类、塑料、厨余三种不同垃圾原料气化制甲烷过程,并考察了空气体积当量比(ER)、水蒸气-原料质量比(S/M)、甲烷化温度和压力对工艺性能的影响。得出结论如下:随着ER增大,甲烷产率和效率均呈下降趋势;增大S/M有助于提高甲烷效率和碳转化率;低温、高压有利于甲烷生产,温度在250℃前升高温度对甲烷合成抑制作用并不明显,而在250℃后升高温度对甲烷合成抑制作用大幅上升;将三种不同的垃圾原料进行对比,发现纸类垃圾气化制甲烷工艺的甲烷摩尔含量最高,而塑料垃圾气化制甲烷工艺的碳转换率以及甲烷效率最大。更多还原

【Abstract】 Methane production processes via gasification of paper,plastic waste and kitchen waste were simulated and analyzed by Aspen Plus. And the effects of air equivalence volume ratio( ER),steam-to-material mass ratio( S/M),temperature and pressure of methanation on process performances were discussed. The results show that the methane yield and overall efficiency decrease with the increase of ER. And the increasing S/M improves the methanation efficiency and carbon conversion rate.Moreover,low temperature and high pressure are conducive to methane production. Increasing the methanation temperature has no obvious influence on the inhibition of methane synthesis when it ’s above 250 ℃,however,the inhibition of methane synthesis is enhanced when the temperature is beyond 250 ℃. By comparing the three waste materials,it can be found that methane content from waste paper is the highest,and the methane efficiency and carbon conversion efficiency from plastic waste were the highest.更多还原