CN100427391C - Tail gas treatment and reutilization for calcium carbide stove - Google Patents
Tail gas treatment and reutilization for calcium carbide stove Download PDFInfo
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- CN100427391C CN100427391C CNB200610141746XA CN200610141746A CN100427391C CN 100427391 C CN100427391 C CN 100427391C CN B200610141746X A CNB200610141746X A CN B200610141746XA CN 200610141746 A CN200610141746 A CN 200610141746A CN 100427391 C CN100427391 C CN 100427391C
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- calcium carbide
- carbide stove
- stove exhaust
- ammonia
- processing
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Abstract
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Claims (10)
- The processing of a calcium carbide stove exhaust with utilize method again, it is characterized in that this method comprises the steps: the preprocessing process of calcium carbide stove exhaust, the tail gas synthetic ammonia process, the absorption of ammonia and course of conveying, ammoniacal liquor flue gas desulfurization, denitrification process, the doctor solution treating processes, whereinThe preprocessing process of described calcium carbide stove exhaust comprises cooling, dedusting and the scavenging process of calcium carbide stove exhaust;Described tail gas synthetic ammonia process adopts the multistage conversion process that CO is transformed into H 2, conversion gas removes CO 2With produce N 2Adopt pressure swing adsorption technique, synthetic ammonia adopts middle-pressure process;The absorption of described ammonia and course of conveying are that water absorbs ammonia, make ammoniacal liquor, by pump delivery and be used for boiler flue gas desulfurization, denitrogenation;Described ammoniacal liquor flue gas desulfurization, denitrification process are after flue gas advances people's thionizer, contact with the whitewashing that comprises the ammoniacal liquor slurries, generate ammonium sulphite, the NO in ammonium sulphite and the flue gas 2Reaction generates ammonium sulfate and N 2Be oxidized to ammonium sulfate in the oxidation trough of unnecessary subsequently ammonium sulphite in being provided in thionizer, the xln content 3~4% of ammonium sulfate in the control doctor solution;The doctor solution treating processes is meant that ammonium sulfate is made for standard compliant chemical fertilizer product after concentrated, crystallization, dehydration.
- 2, according to the processing of the described calcium carbide stove exhaust of claim 1 with utilize method again, it is characterized in that: the cooling of described calcium carbide stove exhaust is meant calcium carbide stove exhaust sent in the byproduct steam boiler lowers the temperature.
- 3, according to the processing of the described calcium carbide stove exhaust of claim 1 with utilize method again, it is characterized in that: described dust removal process is to realize in the one-level multi-tube dust cleaner.
- 4, according to the processing of the described calcium carbide stove exhaust of claim 1 with utilize method again, it is characterized in that: described scavenging process is to adopt washing cooling, caustic wash desulfuration, and the tail gas CO purity after the purification reaches more than 90%.
- 5, according to the processing of the described calcium carbide stove exhaust of claim 1 with utilize method again, it is characterized in that: described CO conversion process is realized by 4 sections conversion.
- 6, according to the processing of the described calcium carbide stove exhaust of claim 1 with utilize method again, it is characterized in that: described separation of C O 2With produce N 2Adopt molecular sieve transformation suction type.
- 7, according to the processing of claim 1 or 5 or 6 described calcium carbide stove exhausts with utilize method again, it is characterized in that: above-mentioned unstripped gas after conversion and decarburization also need be removed CO and CO with the method for methanation behind the first methanolizing 2
- 8, according to the processing of the described calcium carbide stove exhaust of claim 1 with utilize method again, it is characterized in that: described synthetic ammonia pressure-controlling is at 30~40MPa.
- 9, according to the processing of the described calcium carbide stove exhaust of claim 1 with utilize method again, it is characterized in that: above-mentioned finish the ammonia absorption process after, residual gas is reentered ammonia synthesis converter and is reacted.
- 10, according to the processing of the described calcium carbide stove exhaust of claim 1 with utilize method again, it is characterized in that: the doctor solution pH value is controlled at 6.5~7.0 in described ammoniacal liquor flue gas desulfurization, the denitrification process.
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CNB200610141746XA CN100427391C (en) | 2006-09-30 | 2006-09-30 | Tail gas treatment and reutilization for calcium carbide stove |
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CNB200610141746XA CN100427391C (en) | 2006-09-30 | 2006-09-30 | Tail gas treatment and reutilization for calcium carbide stove |
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CN1939840A CN1939840A (en) | 2007-04-04 |
CN100427391C true CN100427391C (en) | 2008-10-22 |
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CNB200610141746XA Expired - Fee Related CN100427391C (en) | 2006-09-30 | 2006-09-30 | Tail gas treatment and reutilization for calcium carbide stove |
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Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101638359B (en) * | 2009-09-04 | 2011-12-21 | 傅永茂 | Technology for producing oxalic acid by using tail gas of calcium carbide furnace |
CN101837954B (en) * | 2010-05-18 | 2012-10-03 | 浙江工业大学 | Method for preparing hydrogen by using tail gas of calcium carbide furnace |
CN102745647A (en) * | 2012-06-20 | 2012-10-24 | 青海宜化化工有限责任公司 | Process for producing hydrogen from natural gas by using calcium carbide tail gas |
CN103204469B (en) * | 2013-03-21 | 2015-04-08 | 新疆天业(集团)有限公司 | Full-low-transformation technique for tail gas of calcium carbide furnaces |
CN103467232B (en) * | 2013-08-23 | 2015-09-02 | 宁夏宝塔石化科技实业发展有限公司 | A kind of method utilizing calcium carbide stove exhaust to prepare alkene |
CN104987275B (en) * | 2015-07-21 | 2017-12-08 | 神雾科技集团股份有限公司 | A kind of technique and system of two-part furnace of calcium carbide fine coal ethene |
CN105779047A (en) * | 2016-04-22 | 2016-07-20 | 北京中科瑞奥能源科技股份有限公司 | Technology and system for making flue gas into liquified natural gas |
CN105838465B (en) * | 2016-05-20 | 2018-07-06 | 中科瑞奥能源科技股份有限公司 | Utilize the technique and system of Fischer-Tropsch process exhaust preparing liquefied natural gas |
CN107619055A (en) * | 2016-07-17 | 2018-01-23 | 卓粤 | Tail gas recovery system of calcium carbide furnace |
CN106345257B (en) * | 2016-08-26 | 2019-02-26 | 江苏中圣高科技产业有限公司 | A kind of device and method improving ammonia process of desulfurization producing ammonium sulfate byproduct quality |
CN107010627B (en) * | 2017-04-11 | 2020-12-25 | 北京柯林斯达科技发展有限公司 | Method for producing pellet calcium carbide raw material by recycling calcium carbide furnace gas fly ash, semi coke powder and quicklime powder |
Citations (6)
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JP2002126448A (en) * | 2000-07-31 | 2002-05-08 | Showa Denko Kk | Method and apparatus for treating combustion exhaust gas |
CN1394667A (en) * | 2002-06-28 | 2003-02-05 | 巨化集团公司 | Method for treating smoke produced by carbide |
CN1456546A (en) * | 2003-03-18 | 2003-11-19 | 四川亚联高科技有限责任公司 | Method for preparing potassium formate and sodium formate from carbide furnace tail gas as raw material |
CN1478585A (en) * | 2003-07-19 | 2004-03-03 | 重庆正和生物能源有限公司 | Smoke desucfuration denitrification dedust process and device |
CN1600410A (en) * | 2003-09-24 | 2005-03-30 | 北京国纬达环保科技有限公司 | Integration method for ammonia process of desulfurizing flue gas and multiple utilizing desulfurized products and equipment |
CN1724369A (en) * | 2005-07-20 | 2006-01-25 | 赵中彦 | Process for producing synthetic ammonia or methanol by acetylene furnace tail gas |
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2006
- 2006-09-30 CN CNB200610141746XA patent/CN100427391C/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002126448A (en) * | 2000-07-31 | 2002-05-08 | Showa Denko Kk | Method and apparatus for treating combustion exhaust gas |
CN1394667A (en) * | 2002-06-28 | 2003-02-05 | 巨化集团公司 | Method for treating smoke produced by carbide |
CN1456546A (en) * | 2003-03-18 | 2003-11-19 | 四川亚联高科技有限责任公司 | Method for preparing potassium formate and sodium formate from carbide furnace tail gas as raw material |
CN1478585A (en) * | 2003-07-19 | 2004-03-03 | 重庆正和生物能源有限公司 | Smoke desucfuration denitrification dedust process and device |
CN1600410A (en) * | 2003-09-24 | 2005-03-30 | 北京国纬达环保科技有限公司 | Integration method for ammonia process of desulfurizing flue gas and multiple utilizing desulfurized products and equipment |
CN1724369A (en) * | 2005-07-20 | 2006-01-25 | 赵中彦 | Process for producing synthetic ammonia or methanol by acetylene furnace tail gas |
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CN1939840A (en) | 2007-04-04 |
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Owner name: YINGLITE ELECTRIC POWER GROUP CO., LTD., NINGXIA; Free format text: FORMER OWNER: YINGLITE ELECTRIC POWER GROUP CO., LTD., NINGXIA Effective date: 20080321 |
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Effective date of registration: 20080321 Address after: 297, east the Great Wall Road, Jinfeng District, the Ningxia Hui Autonomous Region, Yinchuan: 750001 Applicant after: Ningxia British power group Limited by Share Ltd Co-applicant after: Ningxia Yinglite Chemistry Industry Co., Ltd. Address before: 297, east the Great Wall Road, Jinfeng District, the Ningxia Hui Autonomous Region, Yinchuan: 750001 Applicant before: Ningxia Yinglite Electric Power Group Co., Ltd. |
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