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1. 发明申请

US20070270614A1 Method for Controlling the Reactor Admission Temperature During the Production of Methylamine 有权
标题翻译：控制甲胺生产过程中反应器进口温度的方法
公开(公告)号：US20070270614A1
公开(公告)日：2007-11-22
申请号：US10573185
申请日：2004-09-24
申请人： Werner Reutemann , Rolf Wambsganss , Frank Poplow , Theodor Weber , Karl-Heinz Ross , Manfred Julius
发明人： Werner Reutemann , Rolf Wambsganss , Frank Poplow , Theodor Weber , Karl-Heinz Ross , Manfred Julius
IPC分类号： C07C209/14
CPC分类号： C07C209/16 , C07C211/04
摘要： The invention relates to a process for preparing methylamines by gas-phase reaction of methanol and ammonia as starting materials at a pressure in the range from 15 to 30 bar in the presence of heterogeneous catalyst. The starting materials are vaporized in one or more heat exchangers (1, 2, 3), superheated to produce a feed gas stream and subsequently fed into a reactor (4), with the mixing of the starting materials being able to be carried out in the feed stream to one of the heat exchangers (1, 2, 3) or at any desired position in a heat exchanger (1, 2, 3). A product gas stream comprising monomethylamine, dimethylamine and trimethylamine and also reaction by-products is taken off from the reactor (4). To control the reactor inlet temperature of the starting materials to a temperature in the range from 360° C. to 370° C., all or some of the feed gas stream or the product gas stream is passed through an adjustable valve (5) in order to vary the pressure and thus the condensation temperature.
摘要翻译：本发明涉及通过甲醇和氨作为起始原料在非均相催化剂存在下在15至30巴的压力下气相反应制备甲胺的方法。起始材料在一个或多个热交换器（1,2,3）中蒸发，过热以产生进料气流，并随后进料到反应器（4）中，原料的混合能够进行到一个热交换器（1,2,3）或在热交换器（1,2,3）中的任何期望位置的进料流。从反应器（4）中取出包含一甲胺，二甲胺和三甲胺以及反应副产物的产物气流。为了将原料的反应器入口温度控制在360℃至370℃的温度范围内，所有或一些进料气流或产物气流通过可调节阀（5），其中以改变压力，从而改变冷凝温度。

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