公开(公告)号：US20250100892A1

公开(公告)日：2025-03-27

申请号：US18728299

申请日：2023-01-31

Applicant: TOPSOE A/S

Inventor： Lari Bjerg KNUDSEN ,  Christian Henrik SPETH ,  Annette E. KRØLL JENSEN ,  Pat A. HAN

IPC: C01C1/04 ,  B01D3/14 ,  B01D53/00 ,  C25B1/042

Abstract: Ammonia synthesis process and plant comprising an ammonia synthesis converter and a downstream ammonia cooling system, wherein the ammonia synthesis converter is arranged to receive an ammonia synthesis gas comprising hydrogen and nitrogen and to produce an ammonia product gas stream and an off-gas ammonia stream; said ammonia cooling system comprising:—an ammonia evaporator for evaporating an ammonia liquid stream and generating an ammonia vapor stream;—an off-gas cleaning unit for cleaning said off-gas ammonia stream under the addition of water as a scrubbing agent, generating a water stream and an ammonia depleted off-gas stream;—an absorption cooling unit comprising water for cooling said ammonia vapor stream and collecting a condensed ammonia-water stream;—a regeneration unit for generating from said condensed ammonia-water stream: a purified water stream, said ammonia liquid stream, and an overhead ammonia gas stream.