公开(公告)号：US5563282A

公开(公告)日：1996-10-08

申请号：US410748

申请日：1995-03-27

申请人： James H. McCain ,  Alfred W. Naumann ,  Wei-Yeong Wang

发明人： James H. McCain ,  Alfred W. Naumann ,  Wei-Yeong Wang

IPC分类号： B01D53/14 ,  C02F1/02 ,  C07D301/10 ,  C07D301/32 ,  C07D307/04

CPC分类号： C07D301/10 ,  B01D53/1425 ,  C02F1/02 ,  B01D2257/504 ,  C02F2103/18 ,  Y02C10/06 ,  Y02P20/152 ,  Y02P20/51

摘要： A method of controlling the build-up of organic and/or inorganic contaminants (e.g., carbonates, nitrates, nitrites, and the like) in an aqueous process stream, comprising directing at least some of the contaminated stream to a heating means wherein at least some of the contaminants are decomposed. Thereafter, the decomposition products are removed and the purified stream is returned to the process. In a preferred embodiment, the process is an alkylene oxide manufacturing process, and the contaminated aqueous stream is the effluent from a catalyzed scrubbing system for removal of carbon dioxide. Organic contaminants are decomposed to carbon dioxide, which is flashed off; inorganic salts which are decomposed to gases are flashed off; inorganic salts which are not converted to gases are scrubbed out.

摘要翻译： 控制在水性工艺流中有机和/或无机污染物（例如碳酸盐，硝酸盐，亚硝酸盐等）的累积的方法，包括将至少一些受污染的流引导至加热装置，其中至少 一些污染物被分解。 此后，除去分解产物并将纯化的物流返回至该方法。 在优选的实施方案中，该方法是环氧烷制备方法，并且污染的含水物流是来自用于除去二氧化碳的催化洗涤系统的流出物。 有机污染物被分解成二氧化碳，其被闪蒸掉; 被分解成气体的无机盐被闪蒸掉; 不转化为气体的无机盐被洗出来。