Method for the purification of hydrogen sulfide-containing gases
Patents
| Language: |
Английский |
| Type: |
Invention |
| Number |
CA 1307906 C |
| Request number: |
590,617 |
| Request date: |
Feb 9, 1989 |
| patent.field.start_date: |
|
| Registration date: |
Sep 29, 1992 |
| patent.field.request_publication_date: |
|
| Authors |
Ismagilov Zinfer Rishatovich
,
Zamaraev Kirill Ilʹich
,
Khairulin Sergei Rifovich
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS
|
|
A starting hydrogen sulfide-containing gas is purified by way of a two-stage oxidation to elemental sulfur with oxygen which is supplied in an amount of 100-110% of the stoichiometric quantity necessary for oxidizing hydrogen sulfide to elemental sulfur. Oxidation at the first stage is carried out in a fluidized bed of a granular catalyst containing 10 -20% by mass of magnesium chromite on aluminium oxide, At the second oxidation stage, the unreacted hydrogen sulfide and oxygen from the first stage are reacted at 140-155°C in the presence of a catalyst to form elemental sulfur. The invention may be used in decontamination of natural gases high in hydrogen sulfide, gas releases of oil refinery and coke chemical plants.