FIELD: catalytic reduction of sulfur dioxide from gas mixtures.
SUBSTANCE: proposed method is used for catalytic reduction of sulfur dioxide from gas mixtures containing at least 10 vol-% of water; gas mixture is passed over surface of sulfur-resistant hydrogenated catalyst in sulfide form at volumetric rate of no less than 2000 h-1 in presence of reducing component, preferably containing hydrogen at molar ratio of reducing agent to sulfur dioxide more than 10 up to 100 at temperature of 125 to 300 C; then, gas mixture is passed (after reduction) through dry oxidizing layer for oxidation of sulfur compounds, namely hydrogen sulfide obtaining elementary sulfur.
EFFECT: enhanced economical efficiency; increased yield of sulfur.
9 cl, 7 tbl, 8 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF REMOVING SULFUR FROM HYDROGEN SULFIDE-CONTAINING GAS | 1999 |
|
RU2232128C2 |
| PROCESS OF OXIDATING HYDROGEN SULFIDE | 2016 |
|
RU2632014C1 |
| METHOD FOR HIGH-EFFICIENCY EXTRACTION OF SULPHUR FROM ACIDIC GAS STREAM | 2005 |
|
RU2383385C2 |
| CATALYST FOR SELECTIVE OXIDATION OF SULFUR COMPOUNDS AND METHOD FOR SELECTIVE OXIDATION OF SULFUR COMPOUNDS TO ELEMENTAL SULFUR | 1990 |
|
RU2070089C1 |
| IMPROVED CATALYST FOR SELECTIVE OXIDATION OF HYDROGEN SULPHIDE | 2017 |
|
RU2719369C1 |
| METHOD FOR PREPARING ELEMENTAL SULFUR FROM SULFUR DIOXIDE GAS | 2004 |
|
RU2275325C2 |
| SULPHUR PRODUCTION METHOD | 2019 |
|
RU2806854C2 |
| CATALYTIC COMPOSITION BASED ON TITANIUM AND ALUMINUM OXIDE COMPOUNDS AND ITS APPLICATION | 2021 |
|
RU2775472C1 |
| HYDROLYSIS CATALYST WITH HIGH METAL CONTENT FOR CATALYTIC REDUCTION OF SULFUR IN GAS STREAM | 2017 |
|
RU2735774C2 |
| HIGH-EFFICIENCY METHOD OF PRODUCING SULFUR FROM ACID GAS FLOW | 2005 |
|
RU2388524C2 |
