公开(公告)号：US20150352481A1

公开(公告)日：2015-12-10

申请号：US14742026

申请日：2013-12-12

Applicant: INVISTA TECHNOLOGIES S.A R.L.

Inventor： Stewart FORSYTH ,  Aiguo LIU ,  Martin J. RENNER ,  Brent J. STAHLMAN

IPC: B01D53/047

CPC classification number: B01D53/047 ,  B01D2253/102 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/116 ,  B01D2256/16 ,  B01D2257/406 ,  B01D2257/408 ,  C01B3/56 ,  C01B2203/0233 ,  C01B2203/0405 ,  C01B2203/0415 ,  C01B2203/043 ,  C01B2203/0465 ,  C01B2203/0495 ,  C01B2203/1676 ,  C01C3/0212

Abstract: A method and a system for recovering hydrogen from a process for making hydrogen cyanide are described herein. In the method, hydrogen is recovered from a gaseous waste stream of an Andrussow process. The method comprises the following steps: (a) adjusting a reaction mixture comprising methane, ammonia and oxygen to provide the reaction mixture with sufficient oxygen to generate a gaseous waste stream that has at least 40% hydrogen after removal of ammonia and recovery of hydrogen cyanide; and (b) removing components from the gaseous waste stream to generate recovered hydrogen.

Abstract translation: 本文描述了用于从制造氰化氢的方法回收氢的方法和系统。 在该方法中，从Andrussow工艺的气态废物流中回收氢。 该方法包括以下步骤：（a）调整包含甲烷，氨和氧的反应混合物，以使反应混合物具有足够的氧气以产生在除去氨后具有至少40％的氢气并回收氰化氢的气态废物流 ; 和（b）从气态废物流中除去组分以产生回收的氢气。