CN1970703A - Process for desulfurization by using distilled coal with high-temperature residual heat in steam power plant - Google Patents
Process for desulfurization by using distilled coal with high-temperature residual heat in steam power plant Download PDFInfo
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- CN1970703A CN1970703A CN 200610145886 CN200610145886A CN1970703A CN 1970703 A CN1970703 A CN 1970703A CN 200610145886 CN200610145886 CN 200610145886 CN 200610145886 A CN200610145886 A CN 200610145886A CN 1970703 A CN1970703 A CN 1970703A
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- desulfurization
- residual heat
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Abstract
The invention discloses a coal desulfurizing method through residual heat of steam power plant, which comprises the following steps: utilizing high-temperature residual heat between high-temperature hearth flue gas outlet and flue gas discharge inlet to distill coal; decomposing sulfide and monomer sulfur in the coal; setting the distilling decomposing temperature below the burning point of coal; collecting sulfur gas and desulfurized coal.
Description
Technical field: utilize the method for distilled coal with high-temperature residual heat in steam power plant desulfurization to belong to UTILIZATION OF VESIDUAL HEAT IN environmental protection field, fuel-burning power plant, be specially adapted to coal fired power generation enterprise.
Background technology: use the coal desulfurization method to have two kinds by the retrieval fuel-burning power plant, a kind of method is to add sulphur-fixing agent in coal, the discharging of sulfide when reducing the generating fire coal; Another kind method is to install absorbing and filtering sulfurous gas device additional in the smoke evacuation process.The shortcoming that above-mentioned technological method exists is that desulfurization is incomplete, desulfurization project is big, working cost is high, complicated operation etc.
Main contents: the objective of the invention is problem, invent the novel method that a kind of novel recyclable utilization is turned waste into wealth at above-mentioned existence.
Utilize the method for distilled coal with high-temperature residual heat in steam power plant desulfurization to it is characterized in that utilizing the high-temperature burner hearth exhanst gas outlet to the high-temperature residual heat distillation coal between the smoke-uptake inlet, and utilize in the coal sulfide and elemental sulfur to meet pyrolytic decomposition, and its distillation decomposition temperature is lower than below the coal burning-point, collects the coal that steams after effusive sulfurous gas and the desulfurization then respectively.
Utilize the method for distilled coal with high-temperature residual heat in steam power plant desulfurization compared with prior art to have the following advantages:
1, utilizes the power station waste heat to decompose to contain sulfur mineral in the coal and opened up a kind of novel method.
2, sulfuric acid or elemental sulfur are manufactured in the recyclable utilization of the sulfurous gas after the desulfurization.
3, desulfurization degree height in the coal of desulfurization, the method environmental protection and energy saving.
4, desulfurization project is simple, working cost is low, simple to operate.
Description of drawings:
Accompanying drawing is the method synoptic diagram that utilizes the distilled coal with high-temperature residual heat in steam power plant desulfurization.
1, high-temperature burner hearth exhanst gas outlet; 2, smoke-uptake inlet;
3, sulfur-bearing coal inlet; 4, desulfurized coal outlet;
5, sulfur-containing smoke gas outlet; 6, smokestack; 7, burner hearth.
Specific embodiments: existing is the example explanation with the accompanying drawing: the coal that just needs desulfurization is by the inlet of the sulfur-bearing coal under the smokestack (6) (3), enter smoke-uptake inlet 2, after sulfur-bearing coal passes through the desulfurization of heating in the smoke-uptake inlet (2), finish sulfur-bearing coal high temperature desulfurizing through high-temperature burner hearth exhanst gas outlet (1) and desulfurized coal outlet (4), coal after the desulfurization enter lower the temperature in the cooling storehouse standby, and sulfurous gas enters the sulfur-bearing cigarette chamber of utilization by sulfur-containing smoke gas outlet (5) and utilizes, thereby realizes utilizing the method for distilled coal with high-temperature residual heat in steam power plant desulfurization.
Claims (1)
1, utilize the method for distilled coal with high-temperature residual heat in steam power plant desulfurization to it is characterized in that utilizing the high-temperature burner hearth exhanst gas outlet to the high-temperature residual heat distillation coal between the smoke-uptake inlet, and utilize in the coal sulfide and elemental sulfur to meet pyrolytic decomposition, and its distillation decomposition temperature is lower than below the coal burning-point, collects the coal that steams after effusive sulfurous gas and the desulfurization then respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610145886 CN1970703A (en) | 2006-11-22 | 2006-11-22 | Process for desulfurization by using distilled coal with high-temperature residual heat in steam power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610145886 CN1970703A (en) | 2006-11-22 | 2006-11-22 | Process for desulfurization by using distilled coal with high-temperature residual heat in steam power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1970703A true CN1970703A (en) | 2007-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200610145886 Pending CN1970703A (en) | 2006-11-22 | 2006-11-22 | Process for desulfurization by using distilled coal with high-temperature residual heat in steam power plant |
Country Status (1)
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| CN (1) | CN1970703A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106635240A (en) * | 2016-11-27 | 2017-05-10 | 宁波高新区世代能源科技有限公司 | Exhaust heat energy recovery and microwave desulfurization and dewatering process device |
| CN109929569A (en) * | 2017-12-15 | 2019-06-25 | 神华集团有限责任公司 | The method and system of power plants generating electricity coupling production clean coal |
| CN109929571A (en) * | 2017-12-15 | 2019-06-25 | 神华集团有限责任公司 | The method and system of power plants generating electricity coupling production clean coal |
| CN109929640A (en) * | 2017-12-15 | 2019-06-25 | 神华集团有限责任公司 | The method and system of power plants generating electricity coupling production clean coal |
| CN111363598A (en) * | 2018-12-26 | 2020-07-03 | 国家能源投资集团有限责任公司 | Method for producing clean coal |
| CN111363597A (en) * | 2018-12-26 | 2020-07-03 | 国家能源投资集团有限责任公司 | Method for producing clean coal by coupling power generation of power plant |
-
2006
- 2006-11-22 CN CN 200610145886 patent/CN1970703A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106635240A (en) * | 2016-11-27 | 2017-05-10 | 宁波高新区世代能源科技有限公司 | Exhaust heat energy recovery and microwave desulfurization and dewatering process device |
| CN106635240B (en) * | 2016-11-27 | 2019-11-12 | 宁波高新区世代能源科技有限公司 | The processing equipment of exhaust heat-energy recycling and microwave desulfurization dehydration |
| CN109929569A (en) * | 2017-12-15 | 2019-06-25 | 神华集团有限责任公司 | The method and system of power plants generating electricity coupling production clean coal |
| CN109929571A (en) * | 2017-12-15 | 2019-06-25 | 神华集团有限责任公司 | The method and system of power plants generating electricity coupling production clean coal |
| CN109929640A (en) * | 2017-12-15 | 2019-06-25 | 神华集团有限责任公司 | The method and system of power plants generating electricity coupling production clean coal |
| CN109929640B (en) * | 2017-12-15 | 2021-04-30 | 神华集团有限责任公司 | Method and system for producing clean coal by power plant power generation coupling |
| CN111363598A (en) * | 2018-12-26 | 2020-07-03 | 国家能源投资集团有限责任公司 | Method for producing clean coal |
| CN111363597A (en) * | 2018-12-26 | 2020-07-03 | 国家能源投资集团有限责任公司 | Method for producing clean coal by coupling power generation of power plant |
| CN111363597B (en) * | 2018-12-26 | 2021-02-23 | 国家能源投资集团有限责任公司 | Method for producing clean coal by coupling power generation of power plant |
| CN111363598B (en) * | 2018-12-26 | 2021-03-23 | 国家能源投资集团有限责任公司 | Method for producing clean coal |
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Open date: 20070530 |