A DESIGN OF INTERNAL TO INHIBIT GAS AND SOLIDS BACK-MIXING IN FLUIDIZED BEDS

摘要：

　　The desire long exists of inhibiting gas and solids back-mixing in fluidized beds while maintaining the heat and mass transfer efficiency.A specific type of internal is designed in this work which has proven to be effective in reducing the back-mixing of both gas and solids in fluidized beds.The internal is tested using various tracer techniques, including phosphor tracer in a 2-D bed, hydrogen tracer in a 3-D column with both pulse and steady input, and hydrogen tracer with steady input in a scaled-up column of diameter 60cm.The internal is finally utilized in a fluidized bed reactor to improve the yield of aromatics in the methanol aromatization process.

作者: Yujian Sun Weizhong Qian Fei Wei

作者单位: Chemical Reaction Engineering Laboratory,Department of Energy,Environmental & Chemical Engineering,W Beijing Key Laboratory of Green Reaction Engineering and Technology,Department of Chemical Engineeri

会议类型: 国际会议

会议名称: The 11th International Conference on Fluidized Bed Technology(CFB-11)(第十一届流化床技术国际会议)

会议地点: 北京

会议语种:英文

页码: 455-461

在线出版日期: 2014-05-14（万方平台首次上网日期，不代表论文的发表时间）