一种乙醇脱氢制乙醛的系统及方法
The acetaldehyde production system by ethanol dehydrogenation employs catalytic dehydrogenation reaction and hydrogen purification steps, solving the problems of expensive catalysts, high energy consumption, and severe pollution in existing technologies. It achieves efficient and environmentally friendly preparation of acetaldehyde and hydrogen, and simplifies the process flow.
CN117504733BActive Publication Date: 2026-07-17THE NORTHWEST RES INST OF CHEM IND +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- THE NORTHWEST RES INST OF CHEM IND
- Filing Date
- 2023-11-13
- Publication Date
- 2026-07-17
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Figure CN117504733B_ABST
Abstract
本发明公开一种乙醇脱氢制乙醛的系统及方法，所述系统包括乙醇脱氢反应单元，所述乙醇脱氢反应单元依次连接有粗分单元、乙醛精馏单元、脱水单元和乙醇气化单元，所述乙醇气化单元上设置有原料进口和丁醇出口，所述乙醇气化单元还与乙醇脱氢反应单元相连，所述乙醇脱氢反应单元还连接有供热单元；所述粗分单元还依次连接有氢气精制单元、氢气增压单元和加氢单元，所述氢气精制单元通过液体回流管路与粗分单元相连，所述加氢单元通过尾气回流管路与氢气增压单元相连，所述加氢单元还与脱水单元相连；所述乙醛精馏单元还分别与氢气精制单元和加氢单元相连；乙醛精馏单元还连接有乙醛存储单元。该工艺简单，乙醇原子利用率高，实现乙醇的高价值转化。
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