摘要
城市每天产生大量的生活垃圾,一直以来,人们往往通过填埋法和焚烧法对这些垃圾进行处理。然而随着环境问题日渐成为焦点,这些方法造成的二次污染越来越不容忽视。本文在评述填埋法和焚烧法基础上,着重介绍了新兴的城市垃圾甲烷化技术。从目前的研究来看,甲烷化技术具有投资少、运行费用低,工艺简单等特点。如果所得生物质气再通过甲烷-二氧化碳重整技术转化为合成气,该法完全可以避免二次污染且能源化效率更高。因此,最后简单介绍了发展中的甲烷-二氧化碳重整技术最新进展。
A great quantity of household garbage was engendered in urban everyday and people usually dispose of the garbage by landfill or burning.However , as environmental issues were becoming an eye -catching topic , the secondary pollution made by these methods was harder to be neglected.Besides, the methods of landfill and burning were introduced , a promising method of organic waste methanation was emphasized , by which organic waste was converted to biogas.According to the current research , compared with landfill or burning , the methanation method had the advantages including simpler process , less secondary pollution , as well as lower investment and operation cost.Further more , the methanation biogas was easily reprocessed by CO 2 reforming of CH 4 technology to convert into syngas.By this way , the recycling of urban organic waste would completely be hazard -free and resource.Therefore , the progress in CO 2 reforming of CH4 by catalysis or plasma was reviewed also.
出处
《广州化工》
CAS
2014年第11期147-150,共4页
GuangZhou Chemical Industry
