Способ очистки кислородсодержащих газов от диоксида серы
Patents
| Language: |
Русский |
| Type: |
Invention |
| Number |
SU 1823379 A1 |
| Request number: |
4478601/26 |
| Request date: |
Aug 30, 1988 |
| patent.field.start_date: |
|
| Registration date: |
Jan 27, 1996 |
| patent.field.request_publication_date: |
|
| Authors |
Кундо Н.Н.
,
Ермакова А.И.
,
Пай З.П.
,
Лукьянов Б.Н.
,
Кириллов В.А.
,
Замараев К.И.
,
Пармон В.Н.
,
Орлов В.А.
,
Богомазов В.М.
,
Козюра А.И.
,
Данилов Л.И.
,
Филатов А.В.
,
Колесников Б.И.
,
Митрофанов Б.В.
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS
|
| 2 |
Mining and Metallurgical Company NORILSK NICKEL
|
|
FIELD: gas cleaning.
SUBSTANCE: method for cleaning of oxygen-containing gases from sulfur dioxide includes chemical sorption of sulfur dioxide by solution of phosphates in combination with thiosulfate at temperature of 20-50 C and solution pH 6.5-4.2 in apparatus, preferably, of Venturi scrubber. Regeneration of solution with hydrogen sulfide is carried out in the presence of homogeneous catalyst at temperature of 40-70 C and pH 4.2-6.5 in bubbling apparatus (preferably in gas-lift type). In so doing, H2S : SO2 ratio in fed gases is 1.5:4. Solution contains, mol./l: phosphates 0.3-2.0; thiosulfate 0.3-1.0; catalyst by Ti, Al, Si,- 1•10-3-2•10-1, and by HF - 1•10-2-1,0..
EFFECT: higher efficiency of cleaning and simplified process.
4 cl, 1 dwg, 6 tbl