公开(公告)号：US06372021B1

公开(公告)日：2002-04-16

申请号：US09659352

申请日：2000-09-12

申请人： David L. Boggs ,  Paul William Buckley ,  Andrew H. Farrell ,  John William Fulmer ,  Bradley Norman Geyer ,  William Dale Kight ,  Tara H. Wight

发明人： David L. Boggs ,  Paul William Buckley ,  Andrew H. Farrell ,  John William Fulmer ,  Bradley Norman Geyer ,  William Dale Kight ,  Tara H. Wight

IPC分类号： B01D5000

CPC分类号： C07C39/04 ,  B01D53/002 ,  B01D53/04 ,  B01D2253/102 ,  B01D2257/704

摘要： Injection of even very small amounts of supplemental water to the spent-air stream at points upstream from the heat exchanger cooler(s) used in processing spent-air streams from a cumene-to-phenol process allows these heat exchanger coolers to act as both extractors and condensers. It is therefore possible to recover from the heat exchanger cooler a methanol/water condensate, thereby substantially reducing the amount of methanol in the spent-air stream prior to discharge. Thus, known methods for manufacture of phenol from cumene in which an oxygen-containing gas stream is passed through liquid cumene to produce an oxidate product and a spent-air stream comprising methanol and cumene and a saturating amount of water; and in which the spent-air stream is passed through one or more heat exchanger coolers and a carbon bed prior to discharge can be improved.

摘要翻译： 在用于处理来自异丙苯至苯酚方法的废气流中的热交换器冷却器上游的点处，在空气流中注入甚至非常少量的补充水，使得这些热交换器冷却器既可以作为两者 萃取器和冷凝器。 因此，可以从热交换器冷却器回收甲醇/水冷凝物，从而在排出之前大大减少废气流中的甲醇的量。 因此，从含有异丙苯的异丙苯制造苯的已知方法，其中含氧气流通过液体异丙苯以产生氧化产物和包含甲醇和枯烯的废气流和饱和量的水; 并且其中废气流在排出之前通过一个或多个热交换器冷却器和碳床。