公开(公告)号：US20210107801A1

公开(公告)日：2021-04-15

申请号：US17047907

申请日：2019-04-15

申请人： THYSSENKRUPP INDUSTRIAL SOLUTIONS AG ,  thyssenkrupp AG

发明人： Maximilian SCHAAF ,  Dirk MEURER ,  Klaus NÖLKER

IPC分类号： C01C1/04

摘要： An ammonia plant having a first and second reactor and a start-up oven having at least one first heat exchanger. The first reactor operates under a higher internal pressure than the second reactor. The start-up oven is connected via a piping system for at least one synthesis gas to the first and second reactor. Ammonia is produced by heating synthesis gas in the start-up oven and transferring the heated synthesis gas to the first reactor for initiating the chemical reaction. Synthesis gas is heated with the same start-up oven and is transferred to the second reactor for initiating the chemical reaction, wherein high-pressure synthesis of ammonia occurs in the first reactor and low-pressure synthesis of ammonia occurs in the second reactor at a lower process pressure than in the first reactor.

公开(公告)号：US20240246830A1

公开(公告)日：2024-07-25

申请号：US18597600

申请日：2024-03-06

申请人： thyssenkrupp Uhde GmbH ,  thyssenkrupp AG

发明人： Maximilian SCHAAF ,  Dirk MEURER ,  Klaus NÖLKER

IPC分类号： C01C1/04

CPC分类号： C01C1/0452 ,  C01C1/0482

摘要： A method of producing ammonia includes heating, with a start-up oven, a first synthesis gas for a first ammonia synthesis in a first reactor; transferring the heated first synthesis gas to the first reactor for initiating a chemical reaction; heating, with the start-up oven, a second synthesis gas for a second ammonia synthesis in a second reactor; and transferring the heated second synthesis gas to the second reactor for initiating a chemical reaction, wherein a high-pressure synthesis of ammonia is carried out in the first reactor and a low-pressure synthesis of ammonia is carried out in the second reactor at a process pressure which is lower than the process pressure in the first reactor.