公开(公告)号：US20220401863A1

公开(公告)日：2022-12-22

申请号：US17787712

申请日：2021-02-12

Applicant: TOPSOE A/S

Inventor： Mads LYKKE ,  Lars Piilmann BRORHOLT ,  Per Aggerholm SØRENSEN

IPC: B01D39/20 ,  B01D71/36 ,  B01D39/16 ,  B01D37/02 ,  C01B17/79 ,  C01B17/90 ,  C01B17/88 ,  B01J20/14 ,  B01J20/26 ,  B01J20/28 ,  B01J23/22

Abstract: Process for the removal of particulate matter from an aqueous stream containing a concentrated acid, preferably concentrated sulfuric acid, the process including mechanical filtration by passing the aqueous stream through a filter unit, the filter unit including a metallic, ceramic or polymeric filter, or a filter including a filter aid on a septum. The aqueous stream is the exit stream of a sulfuric acid condenser, optionally the exit stream of a sulfuric acid concentrator arranged downstream the sulfuric acid condenser.