公开(公告)号：US20240165601A1

公开(公告)日：2024-05-23

申请号：US18282026

申请日：2022-03-29

申请人： Yara International ASA

发明人： Faisal GHAFOOR ,  Hanne DE GEEST ,  Armin RAMIC ,  Frederick VAES

IPC分类号： B01J38/10 ,  B01J19/00 ,  B01J19/24 ,  C01B3/48 ,  C01C1/04

CPC分类号： B01J38/10 ,  B01J19/002 ,  B01J19/245 ,  C01B3/48 ,  C01C1/0417 ,  B01J2219/00024 ,  B01J2219/00245 ,  C01B2203/0233 ,  C01B2203/0255 ,  C01B2203/0283 ,  C01B2203/0445 ,  C01B2203/047 ,  C01B2203/0475 ,  C01B2203/068 ,  C01B2203/1241 ,  C01B2203/127 ,  C01B2203/84

摘要： A method for revamping a system comprising at least two ammonia production units, each unit comprising an ammonia converter each having an inlet for receiving a process gas and an outlet for releasing a purge gas, the method for revamping comprising the step of fluidly connecting the inlet of the converter of a first ammonia production unit to the outlet of the converter of a second ammonia production unit, for transporting the purge gas being produced by the converter of the second ammonia production unit, to the converter of the first ammonia production unit. Finally, the present disclosure describes a method for the reduction of a catalyst in an ammonia converter, in an ammonia production system comprising at least two ammonia production units and a system in which the method for the reduction of the catalyst can performed.