公开(公告)号：US5614159A

公开(公告)日：1997-03-25

申请号：US419517

申请日：1995-04-10

申请人： Rudolf Modic ,  Hermann-Josef Korte ,  Anton Schoengen ,  Johann-Heinrich Schroeder ,  J org Porschen

发明人： Rudolf Modic ,  Hermann-Josef Korte ,  Anton Schoengen ,  Johann-Heinrich Schroeder ,  J org Porschen

IPC分类号： C10L3/10 ,  B01D53/34 ,  B01D53/72 ,  B01D53/77 ,  F02C3/22 ,  F02C3/30 ,  F02C6/00 ,  F02C3/20 ,  C07C51/16

CPC分类号： B01D53/72 ,  F02C3/22

摘要： In the purification of an off-gas stream originating from a process of oxidizing a liquid mixture of para-xylene with methyl para-toluate with an oxygen-containing gas under pressure, the off-gas being contaminated with at least one of an aliphatic and an aromatic impurity, which comprises expanding the off-gas stream in an expansion turbine for generating mechanical or electrical energy so as to obtain an at least partial recovery of the energy contained in the off-gas, the improvement comprising subjecting the off-gas to at least one absorption step under pressure to remove at least one component from the off-gas and subjecting the resultant off-gas stream to combustion under a pressure of more than 3 bar prior to expanding the off-gas stream in the expansion turbine.

摘要翻译： 在源自在压力下用含氧气体氧化对二甲苯与对甲苯甲酸甲酯的液体混合物的方法的废气流的净化中，废气被至少一种脂族和 芳族杂质，其包括使膨胀涡轮机中的废气流膨胀以产生机械或电能，以便获得包含在废气中的能量的至少部分回收，其改进包括使尾气处于 在压力下至少一个吸收步骤，从废气中除去至少一种组分，并在扩大膨胀涡轮机内的废气流之前，在大于3巴的压力下使得到的废气流燃烧。