摘要
为了掌握废轮胎在流化床内的气化特性，利用自行设计的小型流化床试验装置系统，对废轮胎在不同的过量空气系数下在400～700℃温度范围内进行了空气气化实验．分析了废轮胎气化效率、固定碳转化率、气化气热值、产气量以及气化气成分随气化温度、过量空气系数的变化规律．结果表明，废轮胎气化的最佳运行条件为气化初始温度700℃，过量空气系数α=0．4．在此条件下得到的气化气成分主要包括CH4、CO、H2、C2H6和高分子有机化合物，此时的气化效率为47．96％，气化气低位热值为4804kJ／m^3，
A laboratory-scale fluidized-bed gasifier was designed and used to investigate the characteristics of waste tires gasification. Granulated tires were gasified with different excessive air ratios at a temperature range of 400- 700℃ . The gasification efficiency, carbon conversion efficiency, heating value, yield and components of syngas were analyzed. Results showed that the optimum operation conditions were achieved when the gasification temperature was 700℃ and the excessive air radio（EAR） was 0.4. A gaseous product, mainly containing CH4, CO, H2, C2H6, and longer chain hydrocarbon with a lower heating value（LHV） of about 4 804kJ/m^3, can be generated at the highest gasification efficiency of 47.96 % under the optimum operation conditions.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2006年第5期1003-1007,共5页
Environmental Science
基金
国家自然科学重点基金项目(N59836210)
关键词
废轮胎
流化床
气化
waste tires
fluidized-bed
gasification
