Dehydration of methanol to dimethyl ether in a dual-catalyst system catalytic distillation tower
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- 作者：Wei-Bin Su ; 078221@cpc.com.tw" class="auth_mail" title="E-mail the corresponding author ; Jyh-Haur Hwang ; Hsun-Yi Huang ; Tse-Kuei Chang
- 关键词：Dimethyl ether ; Catalytic distillation ; Dehydration ; Tower design
- 刊名：Journal of the Taiwan Institute of Chemical Engineers
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：59
- 期：Complete
- 页码：86-90
- 全文大小：603 K
文摘
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A dimethyl ether catalytic distillation (CD) model is setup in the commercial simulation program, Aspen Plus and validated with pilot test data.
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The CD tower design consists of low temperature dehydration catalysts in the upper section of bed and high temperature dehydration catalysts in the lower section of bed.
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The dual-catalyst system results in higher allowable tower pressure and lower catalyst deactivation rate.