YANG Qinqin， ZHANG Yunpeng， LIU Yongzhuo， GUO Qingjie
（Key Laboratory of Clean Chemical Processing of Shandong Province， Qingdao University of Science & Technology， Qingdao 266042， China）
Abstract：CaSO4-CuO-Ben oxygen carriers (OC) were prepared with industrial calcium sulfate, bentonite and copper nitrate using mechanical mixing methods. The experiments were carried out in a fluidized bed, where the steam acted as the gasification medium.Effects of CuO and temperature on the reactivity of the prepared OC were investigated. In addition, the cycling stability of the OC was also detected. It shows that the reactivity of oxygen carrier is enhanced and the coal combustion efficiency is increased by adding Cu O. By increasing the carbon conversion efficiency and the average CO2 concentration to 91.27% and 89.34%, the OCCaCu 1.5 (m (CaSO4) ∶m (CuO) =10∶1.5) exhibits higher reactivity at850 ℃. The ten redox tests demonstrate that the OC Ca Cu 1.5 is featured by the high reactivity and excellent cycling stability.
Keywords: Ca-based compound oxygen carrier; chemical looping combustion; CuO; fluidized bed
中图分类号：TQ 534；TQ 126.3+3 文献标志码：A
文章编号：1008-5548（2017）01-0036-06
DOI：10.13732/j.issn.1008-5548.2017.01.009
收稿日期：2015-12-01， 修回日期：2016-07-13，在线出版时间：2017-03-08。
基金项目：国家自然科学基金项目，编号：21276129；青岛市应用基础研究计划项目，编号：14-2-4-5-jch。
第一作者简介：杨勤勤（1990—），女，硕士研究生，研究方向为化学链技术。E-mail: yang746746@163.com。
通信作者简介：郭庆杰（1967—），男，教授，研究方向为流态化工程，颗粒技术。E-mail: qj_guo@yahoo.com。
