| 环氧丙烷水合制丙二醇反应精馏新工艺 |
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| 引用本文： | 张瑞生,张家庭.环氧丙烷水合制丙二醇反应精馏新工艺[J].化学工程,1993,21(1):22-26,33. |
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| 作者姓名： | 张瑞生 张家庭 |
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| 作者单位： | 联合化学反应工程研究所华东化工学院分所
(张瑞生，张家庭)，联合化学反应工程研究所华东化工学院分所(宋宏宇) |
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| 摘 要： | 本文利用环氧丙烷水合反应系统具有较大沸点差的特点,提出制备丙二醇的反应精馏新工艺,并通过过程模拟对反应精馏塔的工艺条件进行了研究。与原有工艺相比,新工艺的进料摩尔水比从15～20降至1.5～3,生成丙二醇的选择性从85％提高到93％,单耗从0.947tPO/tPG下降至0.853tPo/tPG。
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| 关 键 词： | 环氧丙烷 丙二醇 水合反应 反应精馏 |
A NEW TECHNOLOGY OF REACTION DISTILLATION FOR PRODUCING PROPYLENE GLYCOL FROM HYDRATION OF PROPYLENE OXIDE |
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| Abstract: | A new process of reaction distillation for producing propylene glycol (PG) by hydration reaction between propylene ,oxide (PO) and water has been proposed by using a broader boilling range. The operating conditions have been investigated based upon computer simulation. With the new process,the water/propyl-ene oxide feed ratio reduced from 15～20 to 1. 5～3 and the selectivity to produce propy-lene glycol increased from 85 % to 93 %. The unit consumption of propylene oxide reduced from 0. 947 to 0. 853 ton PO/ton PG. |
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