Preparation of Modified Semi-coke Supported ZnFe2O4 Sorbent with Assistance of Ultrasonic Irradiation

摘要：

Modified semi-coke (MSC) supported ZnFe2O4 was prepared under the condition of ultrasonic irradiation,and the performance of the sorbents was tested using a fixed-bed reactor as a hot gas desulfurizer.It was found that the support,the mass ratio of zinc ferrites to the support,calcination temperature and the ultrasonic conditions of power and time all had influences on the structure and the breakthrough behavior of the sorbent.Ultrasonic irradiation can help to make ZnFe2O4 highly dispersed on modified semi-coke.ZnFe2O4/MSC had much more porosity and larger specific surface area compared to unsupported ZnFe2O4.The sorbent exhibited higher sulfur capacity at the optimum preparing conditions,where the mass ratio of ZnFe2O4 to MSC was 8:10,calcinated at 500oC and ultrasonic power and time was 900W and1.5h,respectively

关键词： Zinc ferrites:hydrogen sulfide:modified semi-coke:ultrasonic

作者: Jie Mi Yongyan Zhang Rui Wang Ting Guo Xuebo Liu

作者单位: Key Laboratory for Coal Science and Technology of Shanxi Province and Ministry of Education,Taiyuan University of Technology,Taiyuan 030024,Shanxi,PR China

会议类型: 国际会议

会议名称: The 8th International Symposium on Gas Cleaning at High Temperatures(第八届国际高温气体净化技术研讨会 GCHT-8)

会议地点: 太原

会议语种:英文

页码: 654-667

在线出版日期: 2010-08-23（万方平台首次上网日期，不代表论文的发表时间）