适用于乙二醇工业生产的羰化反应器

Carbonylation reactor suitable for industrial production of ethylene glycol

Abstract

一种适用于乙二醇工业生产的羰化反应器,用于生产乙二醇的设备,包括筒体等,筒体上、下端分别与上、下封头螺接,筒体与上、下封头之间分别设置隔板,筒体内腔填充列管,列管穿置于隔板上,上封头上设原料气进口,下封头下端设产品气出口,上封头上部设有反应温度测温口,筒体壁上、下部分别设有热水出、进口,各列管内装有催化剂,下封头内充有两层瓷球,下封头底端设有封头夹套,封头夹套上设有夹套蒸汽进、出口,夹层与夹套蒸汽进、出口相通,产品气出口穿过封头夹套。本发明通过在列管底端设置封头夹套,其可以在温度下降时封头夹套内通入蒸汽或热水,保持温度高于60℃,解决了现有反应器在温度下降时草酸二甲酯容易结晶的问题。
The invention relates to a carbonylation reactor suitable for industrial production of ethylene glycol, which is used for equipment for producing ethylene glycol. The reactor comprises a barrel and the like, wherein the upper and lower ends of the barrel are threaded with upper and lower end sockets respectively; clapboards are arranged between the barrel and the upper end socket as well as between the barrel and the lower end socket respectively; a tube nest is filled in the cavity of the barrel and inserted into the clapboard; the upper end socket is provided with a raw material gas inlet; the lower end of the lower end socket is provided with a product gas outlet; the upper part of the upper end socket is provided with a reaction temperature measuring port; the upper and lower parts ofa barrel wall are provided with hot water outlet and inlet respectively; a catalyst is filled in each tube nest; the lower end socket is filled with two layers of ceramic balls; the bottom end of thelower end socket is provided with an end socket jacket; the end socket jacket is provided with jacket steam inlet and outlet; an interlayer is communicated with the jacket steam inlet and outlet; andthe product gas outlet passes through the end socket jacket. The bottom end of the tube nest is provided with the end socket jacket, steam or hot water can be introduced into the end socket jacket when the temperature falls and the temperature is kept over 60 DEG C, so that the problem that dimethyl oxalate in the current reactor is easy to crystallize when the temperature falls.

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Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    CN-101225038-AJuly 23, 2008陕西煤业化工技术开发中心有限责任公司Method for preparing acetic anhydride and acetic acid by multi-component carbonylation
    CN-201855686-UJune 08, 2011安徽淮化股份有限公司适用于乙二醇工业生产的羰化反应器

NO-Patent Citations (2)

    Title
    《基本有机化工生产及工艺》 20060630 陈性永等 基本有机化工生产及工艺 , 第2版
    《甲醇及其衍生物》 20020630 谢克昌等 甲醇及其衍生物 , 第1版

Cited By (5)

    Publication numberPublication dateAssigneeTitle
    CN-102516031-AJune 27, 2012安徽淮化股份有限公司乙二醇工业生产中草酸二甲酯防固化方法及装置系统
    CN-102516031-BMarch 12, 2014安徽淮化股份有限公司Method and device system for preventing DMO (dimethyl oxalate) from curing in ethylene glycol industrial production
    CN-102898305-AJanuary 30, 2013安徽淮化股份有限公司Dimethyl oxalate rectifying equipment
    US-8962895-B2February 24, 2015China Petroleum & Chemical Corporation, Shanghai Research Institute Of Petrochemical Technology, SinopecMethod for the production of ethylene glycol
    WO-2012113268-A1August 30, 2012中国石油化工股份有限公司, 中国石油化工股份有限公司上海石油化工研究院Procédé de production de glycol