JPS56147615A - Dry desulfurization method - Google Patents
Dry desulfurization methodInfo
- Publication number
- JPS56147615A JPS56147615A JP4925580A JP4925580A JPS56147615A JP S56147615 A JPS56147615 A JP S56147615A JP 4925580 A JP4925580 A JP 4925580A JP 4925580 A JP4925580 A JP 4925580A JP S56147615 A JPS56147615 A JP S56147615A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- line
- reducing
- sulfur
- residual
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000006477 desulfuration reaction Methods 0.000 title 1
- 230000023556 desulfurization Effects 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 4
- 239000003463 adsorbent Substances 0.000 abstract 3
- 229910052717 sulfur Inorganic materials 0.000 abstract 3
- 239000011593 sulfur Substances 0.000 abstract 3
- 150000003464 sulfur compounds Chemical class 0.000 abstract 3
- 239000003575 carbonaceous material Substances 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 239000003245 coal Substances 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 abstract 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To employ versatile kinds of coals for reducing SO2, to raise the conversion efficiency, and to diminish the heat load of the reducing process and the loss of the reducing carbonaceous substance, by reducing a part of desorbed SO2 gas with carbonaceous substances into H2S, etc., and by making H2S react with the residual SO2 to perform Claus reaction.
CONSTITUTION: The carbonaceous adsorbent 2 adsorbs SO2 in the waste gas sent from the boiler 1; an inert gas such as steam supplied from the line 20 is passed through the said carbonaceous adsorbent layer 2 in order to heat it to desorb SO2. The concentrated SO2 gas 9 is partly recycled to the adsorbent layer 2 for adjusting the concentration of SO2, and thereafter, the residual part of SO2 gas is branched into two lines 11 and 13, and the former branch 11 is reduced to reducing sulfur compound such as H2S, COS, by the coal supplied from the line 15, in the presence of moisture in the reducing furnace 3. Thus obtained sulfur compound is united with the residual concentrated SO2 gas of the line 13, and this gas mixture is fed to the catalyst-packed layer of the Claus furnace 4 wherein the sulfur compound is converted into the elemental sulfur. The gas is next sent to the sulfur condenser 5, the liquid sulfur is recovered through the line 17, and the gas deprived of sulfur is partly sent to the boiler 1 through the line 19, and the residual part is recycled to the SO2 adsorber 2 through the line 18.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4925580A JPS56147615A (en) | 1980-04-15 | 1980-04-15 | Dry desulfurization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4925580A JPS56147615A (en) | 1980-04-15 | 1980-04-15 | Dry desulfurization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56147615A true JPS56147615A (en) | 1981-11-16 |
Family
ID=12825720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4925580A Pending JPS56147615A (en) | 1980-04-15 | 1980-04-15 | Dry desulfurization method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56147615A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734001A (en) * | 1980-08-01 | 1982-02-24 | Hitachi Ltd | Converting method of sulfur dioxide into sulfur |
| JPS6158805A (en) * | 1984-08-30 | 1986-03-26 | 三井三池化工機株式会社 | Method for removing NH3 from SO2-containing gas |
-
1980
- 1980-04-15 JP JP4925580A patent/JPS56147615A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734001A (en) * | 1980-08-01 | 1982-02-24 | Hitachi Ltd | Converting method of sulfur dioxide into sulfur |
| JPS6158805A (en) * | 1984-08-30 | 1986-03-26 | 三井三池化工機株式会社 | Method for removing NH3 from SO2-containing gas |
| JPH0428644B2 (en) * | 1984-08-30 | 1992-05-14 | Mitsui Miike Kakoki Kk |
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