摘要
生物质气化过程,最大难点就是在反应过程中会有焦油形成。焦油冷凝后会附着在反应体系中腐蚀设备,而且很难直接应用到后续过程中,因而必须尽量将焦油除去。去除焦油的方法大致可分为两类:物理法和热化学法。物理法虽然也能有效除焦,但焦油只是经历了相转换并没有真正除去,环境污染不可避免;热化学法不仅能将焦油从根本上除去,而且还能增加原料的转化率,对焦油的去除非常有效。本文着重介绍化学除焦法。
One of the main technical barriers in biomass gasification development is the formation of tar. After condensation,the tar will not only erode reactors, but affect the following production. So the tar must be eliminated. Tar removal technologies can be divided into two approaches： physical methods and chemical methods. Although the physical methods can eliminate tar very effectively, but during the process they also produce lots of wastewater which pollute the environment. Chemical methods not only can eliminate tar radically,but also increase the conversion rate of the raw material. This paper emphasizes to introduce the chemical methods.
出处
《生物质化学工程》
CAS
2006年第2期31-35,共5页
Biomass Chemical Engineering
关键词
生物质
气化
焦油
净化
biomass
tar
gasification
purification
