EP 0398952 A4 19910522 - COMPOSITION, METHOD AND APPARATUS FOR REMOVAL OF HYDROGEN SULFIDE
Title (en)
COMPOSITION, METHOD AND APPARATUS FOR REMOVAL OF HYDROGEN SULFIDE
Publication
Application
Priority
US 14440988 A 19880115
Abstract (en)
[origin: WO8906675A1] This invention provides a process and apparatus for removing H2S from the gaseous stream by contacting the stream with an aqueous solution of a water soluble oxidized polyvalent metal chelate catalyst in the presence of oxygen whereby the metal chelate catalyst oxidizes the hydrogen sulfide to produce elemental sulfur and the oxygen present oxidizes the reduced metal chelate catalyst to its oxidized form. This process is performed in a single reaction vessel and forms a suspension or slurry of the precipitated elemental sulfur. This invention also provides a composition for H2S removal comprising a polyvalent metal chelate catalyst, a buffer and a dispersing agent. The process can be carried out in separate reaction zones, one zone for the oxidation of H2S and reduction of the metal chelate catalyst (22) and a second zone for the oxidation of the reduced catalyst to its oxidized form (23).
IPC 1-7
IPC 8 full level
B01D 53/14 (2006.01); B01D 53/52 (2006.01); B01D 53/77 (2006.01); C01B 17/05 (2006.01); C09K 3/00 (2006.01)
CPC (source: EP KR)
B01D 47/02 (2013.01 - KR); B01D 53/1418 (2013.01 - EP); B01D 53/1468 (2013.01 - EP); B01D 53/1493 (2013.01 - EP); B01D 53/52 (2013.01 - EP); C01B 17/05 (2013.01 - EP)
Citation (search report)
- No further documents have been revealed.
- See references of WO 8906675A1
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8906675 A1 19890727; AU 3043789 A 19890811; CN 1036545 A 19891025; EP 0398952 A1 19901128; EP 0398952 A4 19910522; JP H03503856 A 19910829; KR 900700176 A 19900811
DOCDB simple family (application)
US 8900181 W 19890113; AU 3043789 A 19890113; CN 89100244 A 19890116; EP 89902134 A 19890113; JP 50198689 A 19890113; KR 890701707 A 19890916