EP 0641244 A1 19950308 - TREATMENT OF ACID GAS USING HYBRID MEMBRANE SEPARATION SYSTEMS.
Title (en)
TREATMENT OF ACID GAS USING HYBRID MEMBRANE SEPARATION SYSTEMS.
Title (de)
BEHANDLUNG VON SAUREM GAS MIT HYBRIDMEMBRAN ANLAGE.
Title (fr)
TRAITEMENT DE GAZ ACIDES AU MOYEN DE SYSTEMES DE SEPARATION A MEMBRANES HYBRIDES.
Publication
Application
Priority
- US 9204026 W 19920514
- US 70351891 A 19910521
Abstract (en)
[origin: WO9220431A1] A system and method for separating acid gas from natural gas which utilizes a hybrid membrane system comprising a hydrogen sulfide membrane assembly, an acid gas membrane assembly, and, optionally, a dehydration membrane assembly. This hybrid membrane system is preferably used together with a means for converting the separated hydrogen sulfide into elemental sulfur, i.e., a Claus sulfur plant. The hydrogen sulfide membrane assembly preferably comprises a gel polymer membrane, molten salt membrane and/or rubber copolymer membrane. The acid gas membrane assembly preferably comprises a cellulose acetate membrane, polyimide membrane, polysiloxane membrane, and/or pyrolone membrane. The dehydration membrane assembly preferably comprises a polysiloxane membrane.
IPC 1-7
IPC 8 full level
B01D 53/22 (2006.01); C01B 17/04 (2006.01); C01B 17/16 (2006.01); C07C 7/144 (2006.01); C07C 9/04 (2006.01); C10L 3/10 (2006.01)
CPC (source: EP)
B01D 53/22 (2013.01); C01B 17/0408 (2013.01); C01B 17/167 (2013.01); C10L 3/10 (2013.01)
Citation (search report)
See references of WO 9220431A1
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
WO 9220431 A1 19921126; CA 2108892 A1 19921122; EP 0641244 A1 19950308; JP H06504949 A 19940609; NO 934178 D0 19931118; NO 934178 L 19931118
DOCDB simple family (application)
US 9204026 W 19920514; CA 2108892 A 19920514; EP 92912590 A 19920514; JP 50017892 A 19920514; NO 934178 A 19931118