CN101457159B - Gas purification and cooling process of two stage type gas generating furnace - Google Patents
Gas purification and cooling process of two stage type gas generating furnace Download PDFInfo
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- CN101457159B CN101457159B CN2009100007300A CN200910000730A CN101457159B CN 101457159 B CN101457159 B CN 101457159B CN 2009100007300 A CN2009100007300 A CN 2009100007300A CN 200910000730 A CN200910000730 A CN 200910000730A CN 101457159 B CN101457159 B CN 101457159B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The present invention relates to a gas generator gas purification cooling down process, particularly a two-segment gas generating furnace purify cooling down process. The process flow is as following: gas in upper segment flows through a gravity dust collector to remove bug dust with granule in big size and partial coke tar in the gas, then enters into electrostatic coke tar remove to remove most coke tar and bug dust in the gas, and then enter into a electrostatic precipitator; gas in lower segment flows through the gravity dust collector to remove bug dust with granule in big size in the gas, then enters into waste heat recoverer to recover and utilize gas high temperature sensible heat, and then enters into a wind cooler, at last enters into the electrostatic precipitator after cooling down by outside air; upper segment gas and lower segment gas that entered into the electrostatic precipitator mixes, then enter into indirect cooler, at last be transmitted to consumer after pressurized by a gas supercharging equipment. The present invention can realize transmitting dry gas containing low water to gas pipe network, improve gas generating furnace gas delivery efficiency and burning temperature greatly.
Description
Technical field:
The present invention relates to a kind of gas generator gas purification and cooling process, two stage type gas generating furnace purifies process for cooling specifically.
Background technology:
Press gas purification process form branch, employing more process for purifying in station takes place in two stage type gas at present, is water-cooled purifying technology and air-cooled process for purifying.
1, water-cooling process
Water-cooling process hypomere gas purification cooling system is made up of cyclone dust collectors and chiller; Its main technological features is the primary purifying and the cooling of producer hypomere coal gas; Be in chiller; Contact with the direct of coal gas through water, carry out that following current and countercurrent flow realize, the station takes place and has following problem in water-cooled purifying technology two stage type gas:
(1) the chiller cooling water is water and the direct flushing water that coal gas directly contacts, and contains harmful substances such as a large amount of tar, dust and benzene, phenol, this water centralized collection, cooling naturally, cycle applications.But this water severe contamination air after the natural evaporation in the cooling pond, the district's environment of standing is relatively poor.And the chiller cooling pond is easy to be full of water in rainy season, causes this water accident to efflux serious environment pollution.
(2) in the chiller in cooling water and the coal gas of high temperature direct heat transfer process; The steam of considerable part turns to water vapour and is taken away by coal gas; Get into next stage and purify process for cooling; The degree of depth cooling along with coal gas in indirect cooler of this part water vapour is condensed out, thereby has increased the output of coal gas phenol wastewater greatly, has brought very big difficulty for the processing of phenol wastewater.
(3) technology is not utilized the sensible heat of hypomere coal gas of high temperature.
(4) in chiller, be vaporized that part of water, get into indirect cooler with coal gas, along with the cooling of coal gas is condensed out, the condensation of this part steam has increased the demand of cooling medium in the indirect cooler greatly, has increased the energy consumption of coal gas degree of depth cooling
2, air-cooled technology
Air-cooled technology hypomere gas purification cooling system is made up of cyclone dust collectors and air cooler; Its process characteristic is different from water-cooled purifying technology; Mainly show as the elementary cooling of producer hypomere coal gas; Be in cyclone dust collectors and air cooler, the indirect heat exchange through outside air and coal gas of high temperature realizes that air-cooled process for purifying two stage type gas the station takes place has following problem:
(1) because the elementary cooling of coal gas realizes that through coal gas in cyclone dust collectors and the air cooler and surrounding air indirect heat exchange so cause equipment ambient temperatures such as cyclone dust collectors and air cooler high, operating environment is very poor, is not easy to workman's operating maintenance.
(2) though this technology has solved the problem that vaporize water condensation power consumption that water-cooled purifying technology direct water-cooling causes increases, the sensible heat to the hypomere coal gas of high temperature does not effectively utilize, and causes energy waste.
Summary of the invention:
A kind of gas purification and cooling process of two stage type gas generating furnace that the objective of the invention is to overcome the deficiency of background technology and provide.
The present invention adopts following technical scheme:
1, a kind of gas purification and cooling process of two stage type gas generating furnace, this two stage type gas generating furnace are produced upper and lower two sections coal gas, and its technological process is:
A, gas in upper segment through gravitational precipitator with coal gas in big dust particle and part tar remove, get into the static decoking device then, most tar and dust in the coal gas are removed, get into electrostatic precipitator again;
B, hypomere coal gas through gravitational precipitator with coal gas in big dust particle remove, get into waste-heat recoverer, the coal gas high-temperature sensible heat is recycled, reduce gas temperature, get into air cooler again, get into electrostatic precipitator again after utilizing outside air that coal gas is lowered the temperature;
After c, the gas in upper segment that gets into electrostatic precipitator and hypomere coal gas mix, carry out deep purifying dedusting, decoking processing, the coal gas after the purification gets into indirect cooler again, carries out the more cooling of the degree of depth;
D, after the coal gas supercharging equipment is pressed and delivered to the user.
The present invention of employing technique scheme compared with prior art; Can realize carrying the very low dry gas of water content to gaspipe network; Increase substantially gas generator coal gas transfer efficiency and ignition temperature; The gas generating station water pollution problems of having avoided coal gas and water directly to contact cooling being brought has been implemented the waste heat recovery to coal gas of high temperature in the coal gas cooling procedure, reached energy-conservation effect.
Description of drawings:
Fig. 1 is a process chart of the present invention.
The specific embodiment:
Below in conjunction with accompanying drawing and embodiment the present invention is detailed:
A kind of gas purification and cooling process of two stage type gas generating furnace, this two stage type gas generating furnace are produced upper and lower two sections coal gas, and referring to Fig. 1, its technological process is:
A, gas in upper segment through the epimere gravitational precipitator with coal gas in big dust particle and part tar remove, get into then that the static decoking device carries out further purifying and dedusting, decoking is handled, most tar and dust in the coal gas are removed, get into electrostatic precipitator again;
B, hypomere coal gas through the hypomere gravitational precipitator with coal gas in big dust particle remove; Get into waste-heat recoverer, the coal gas high-temperature sensible heat is recycled, reduce gas temperature; Get into air cooler again, get into electrostatic precipitator again after utilizing outside air that coal gas is lowered the temperature;
After c, the gas in upper segment that gets into electrostatic precipitator and hypomere coal gas mix, carry out deep purifying dedusting, decoking processing, the coal gas after the purification gets into indirect cooler again, carries out the more cooling of the degree of depth;
D, after the coal gas supercharging equipment is pressed and delivered to the user.
The epimere gravitational precipitator that adopts in the present embodiment is identical with its structure of hypomere gravitational precipitator, and different because of the product property that two stage type gas generating furnace produced, section and hypomere are provided with gravitational precipitator respectively above that.
Present embodiment can be realized carrying the very low dry gas of water content to gaspipe network; Increase substantially gas generator coal gas transfer efficiency and ignition temperature; The gas generating station water pollution problems of having avoided coal gas and water directly to contact cooling being brought; Implemented waste heat recovery in the coal gas cooling procedure, reached energy-conservation effect coal gas of high temperature.
Claims (1)
1. gas purification and cooling process of two stage type gas generating furnace, this two stage type gas generating furnace is produced upper and lower two sections coal gas, and its technological process is:
A, gas in upper segment through gravitational precipitator with coal gas in big dust particle and part tar remove, get into the static decoking device then, most tar and dust in the coal gas are removed, get into electrostatic precipitator again;
B, hypomere coal gas through gravitational precipitator with coal gas in big dust particle remove, get into waste-heat recoverer, the coal gas high-temperature sensible heat is recycled, reduce gas temperature, get into air cooler again, get into electrostatic precipitator again after utilizing outside air that coal gas is lowered the temperature;
After c, the gas in upper segment that gets into electrostatic precipitator and hypomere coal gas mix, carry out deep purifying dedusting, decoking processing, the coal gas after the purification gets into indirect cooler again, carries out the more cooling of the degree of depth;
D, after the coal gas supercharging equipment is pressed and delivered to the user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100007300A CN101457159B (en) | 2009-01-09 | 2009-01-09 | Gas purification and cooling process of two stage type gas generating furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100007300A CN101457159B (en) | 2009-01-09 | 2009-01-09 | Gas purification and cooling process of two stage type gas generating furnace |
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| CN101457159A CN101457159A (en) | 2009-06-17 |
| CN101457159B true CN101457159B (en) | 2012-05-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613626B (en) * | 2009-07-09 | 2012-07-04 | 唐山雷浩能源技术装备有限公司 | Technology for producing cooled coal gas with no discharge of phenolic water |
| CN102260532B (en) * | 2011-06-09 | 2013-07-31 | 宁波双翼能源科技有限公司 | Production equipment for continuously preparing combustible gas by utilizing biomass fuel |
| CN104593089A (en) * | 2014-12-18 | 2015-05-06 | 广东正鹏生物质能源科技有限公司 | Self-heat supply type biomass oil gas co-production process |
| CN105018155B (en) * | 2015-08-05 | 2017-06-16 | 华陆工程科技有限责任公司 | The method of rich oil coal utilization pyrolytic gasification coupling device and oil gas purifier production coal tar and synthesis gas |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818080A (en) * | 2006-01-01 | 2006-08-16 | 广东韶钢松山股份有限公司 | Gas totally-drying purifying dust-collecting process of blast-furnace |
| CN101280225A (en) * | 2008-05-13 | 2008-10-08 | 邹平县华星热能环保设备有限公司 | Purification and cooling method for hot dirty high-temperature gas |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818080A (en) * | 2006-01-01 | 2006-08-16 | 广东韶钢松山股份有限公司 | Gas totally-drying purifying dust-collecting process of blast-furnace |
| CN101280225A (en) * | 2008-05-13 | 2008-10-08 | 邹平县华星热能环保设备有限公司 | Purification and cooling method for hot dirty high-temperature gas |
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