CN101565634B - Single-stage environment-friendly air swept type coal gas production method - Google Patents
Single-stage environment-friendly air swept type coal gas production method Download PDFInfo
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- CN101565634B CN101565634B CN2009100649868A CN200910064986A CN101565634B CN 101565634 B CN101565634 B CN 101565634B CN 2009100649868 A CN2009100649868 A CN 2009100649868A CN 200910064986 A CN200910064986 A CN 200910064986A CN 101565634 B CN101565634 B CN 101565634B
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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
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- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The invention discloses a single-stage environment-friendly air swept type coal gas production method, which comprises the steps of: 1. mixing air from a blower with steam separated from a steam dome and a phenolic water steam dome of a single-stage coal gas producer, inputting mixed gas from the bottom of the single-stage coal gas producer into the producer as a gasifying agent, and simultaneously adding coal evenly into the single-stage coal gas producer to conduct chemical reaction at high temperature to produce coal gas; 2. inputting the coal gas into a surplus heat cyclone dust collector for dust collection and conducting heat exchange with the phenolic water in the jacket of the surplus heat cyclone dust collector; 3. inputting the coal gas from the surplus heat cyclone dust collector into a natural air swept device for heat exchange, and reducing the temperature of the coal gas to 100-120 DEG C; 4. inputting the coal gas from the natural air swept device into an indirect cooler for heat exchange with recycled water of 32 DEG C, and reducing the temperature of the coal gas to 35-40 DEG C; and 5. inputting the coal gas after being cooled in the indirect cooler into an electricdeoiler for further dust collection and deoiling and finally obtaining purified coal gas. The equipment has lower construction investment than a double-stage coal gas producer, thus greatly reducing production cost.
Description
Technical field
The present invention relates to adopt producer gas generator to produce the method for coal gas, especially relate to single-stage environment-friendly air swept type coal gas production method.
Background technology
The two stage type gas generating furnace of present many employings of gas prodn standard, characteristics such as its gas quality of producing height, stable operation, environmental protection, but required investment is bigger, makes that the gas cost of producing is higher.And adopt its cooled coal gas of producing of unistage type producer gas generator can produce a large amount of phenolic wastewater and bring pollution to environment; Tar, coal ash obstruction gas line phenomenon usually taking place simultaneously, increased maintenance cost, has reduced production efficiency.
Summary of the invention
The object of the invention is to provide a kind of gas prodn cost low single-stage environment-friendly air swept type coal gas production method.
For realizing above-mentioned purpose, the present invention can take following technical proposals:
Single-stage environment-friendly air swept type coal gas production method of the present invention, it is to carry out according to following step:
The first step, will mix with steam from the air of gas blower from unistage type producer gas generator steam pockets, phenol steam bag; Mixed gas temperature of saturation is controlled between 50～60 ℃, should be input in the stove from unistage type producer gas generator bottom through non-return valve as vaporized chemical by mixed gas; Simultaneously with feed coal in coal mechanism evenly joins unistage type producer gas generator body of heater, at high temperature carry out chemical reaction and produce coal gas;
Second the step, will be passed into from the coal gas that the unistage type producer gas generator comes out carry out in the waste heat tornado dust collector dedusting and with waste heat tornado dust collector chuck in the heat exchange of phenol water;
The 3rd step, will be passed into from the coal gas that the waste heat tornado dust collector come out in the natural wind cooler and the atmosphere heat exchange; Coal gas is cooled to 100-120 ℃;
The 4th step, the coal gas that comes out in the natural wind cooler is passed in the inter cooler and 32 ℃ of recirculated water heat exchange; Coal gas is cooled to 35-40 ℃;
The 5th step, with the 4th step be cooled to 35-40 ℃ coal gas be passed into further carry out in the electric fishing light oil device behind dedusting and the light oil purify coal gas.
The said second step dedusting and with waste heat tornado dust collector chuck in coal gas after the heat exchange of phenol water be cooled to 200-250 ℃.
In said second step, the phenol water through the coal gas heating in the waste heat tornado dust collector chuck is fed phenol steam bag, phenol steam bag is isolated the phenol water vapor, and the phenol water vapor is input to unistage type producer gas generator furnace bottom as vaporized chemical; The phenolic wastewater of the interior condensation of inter cooler is pumped into behind sedimentation and filtration in the said phenol steam bag and utilizes in the 4th step.
Because the inventive method adopts the production of unistage type producer gas generator to purify coal gas, so the equipment construction investment cost is lower than two section type producer gas generator, thereby greatly reduces production cost.Simultaneously, the inventive method also has the following advantages:
1, solves tar and the coal ash generation of stopping up the gas pipe phenomenon in process of production of unistage type producer gas generator, reduced maintenance cost, improved production efficiency;
2, the phenol water after the purification is heated back feeding phenol steam bag at the waste heat tornado dust collector and isolates the phenol water vapor, and the phenol water vapor is utilized as vaporized chemical once more, has improved resource utilization, has avoided the pollution of phenolic wastewater to environment simultaneously;
3, phenol water is heated into the phenol water vapor at the waste heat tornado dust collector by heating gas, and coal gas obtains cooling simultaneously, has played energy-saving effect.
4, adopt air cooler to utilize natural air that low temperature coal gas is lowered the temperature, further practiced thrift water, electric resources.
Description of drawings
Fig. 1 is technological process of production figure of the present invention.
Embodiment
As shown in the figure, single-stage environment-friendly air swept type coal gas production method of the present invention, carry out according to following step:
The first step, will mix with steam from the air of gas blower from unistage type producer gas generator steam pockets, phenol steam bag; Mixed gas temperature of saturation is controlled between 50～60 ℃, should be input in the stove from unistage type producer gas generator bottom through non-return valve as vaporized chemical by mixed gas; Simultaneously feed coal is evenly joined in the unistage type producer gas generator body of heater through coal mechanism, at high temperature carry out chemical reaction and produce coal gas;
Second the step, will be passed into from the coal gas that the unistage type producer gas generator comes out in the waste heat tornado dust collector and carry out dedusting, and with waste heat tornado dust collector chuck in the heat exchange of phenol water be cooled to 200-250 ℃; Simultaneously the phenol water through the coal gas heating in the waste heat tornado dust collector chuck is passed into phenol steam bag, phenol steam bag is isolated the phenol water vapor, and the phenol water vapor is input to unistage type producer gas generator furnace bottom as vaporized chemical; The phenolic wastewater of condensation is pumped into behind sedimentation and filtration in the said phenol steam bag and utilizes in the inter cooler;
The 3rd step, will be passed into from the coal gas that the waste heat tornado dust collector come out in the natural wind cooler and the atmosphere heat exchange; Coal gas is cooled to 100-120 ℃;
The 4th step, the coal gas that comes out in the natural wind cooler is passed in the inter cooler and 32 ℃ of recirculated water heat exchange; Coal gas is cooled to 35-40 ℃; The phenolic wastewater of condensation is pumped into behind sedimentation and filtration in the said phenol steam bag and utilizes in the said inter cooler.
The 5th step, the 4th step was cooled to 35-40 ℃ coal gas is passed into and further carries out in the electric fishing light oil device promptly making purification coal gas behind dedusting and the light oil.
Claims (3)
1. single-stage environment-friendly air swept type coal gas production method, it is characterized in that: it is to carry out according to following step:
The first step, will mix with steam from the air of gas blower from unistage type producer gas generator steam pockets, phenol steam bag; Mixed gas temperature of saturation is controlled between 50～60 ℃, should be input in the stove from unistage type producer gas generator bottom through non-return valve as vaporized chemical by mixed gas; Simultaneously with feed coal in coal mechanism evenly joins unistage type producer gas generator body of heater, at high temperature carry out chemical reaction and produce coal gas;
Second the step, will be passed into from the coal gas that the unistage type producer gas generator comes out carry out in the waste heat tornado dust collector dedusting and with waste heat tornado dust collector chuck in the heat exchange of phenol water;
The 3rd step, will be passed into from the coal gas that the waste heat tornado dust collector come out in the natural wind cooler and the atmosphere heat exchange; Coal gas is cooled to 100-120 ℃;
The 4th step, the coal gas that comes out in the natural wind cooler is passed in the inter cooler and 32 ℃ of recirculated water heat exchange; Coal gas is cooled to 35-40 ℃;
The 5th step, with the 4th step be cooled to 35-40 ℃ coal gas be passed into further carry out in the electric fishing light oil device behind dedusting and the light oil purify coal gas.
2. single-stage environment-friendly air swept type coal gas production method according to claim 1 is characterized in that: the said second step dedusting and with waste heat tornado dust collector chuck in coal gas after the heat exchange of phenol water be cooled to 200-250 ℃.
3. single-stage environment-friendly air swept type coal gas production method according to claim 1 and 2; It is characterized in that: in said second step; Phenol water through the coal gas heating in the waste heat tornado dust collector chuck is fed phenol steam bag; Phenol steam bag is isolated the phenol water vapor, and the phenol water vapor is input to unistage type producer gas generator furnace bottom as vaporized chemical; The phenolic wastewater of the interior condensation of inter cooler is pumped into behind sedimentation and filtration in the said phenol steam bag and utilizes in said the 4th step.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100649868A CN101565634B (en) | 2009-05-22 | 2009-05-22 | Single-stage environment-friendly air swept type coal gas production method |
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| CN2009100649868A CN101565634B (en) | 2009-05-22 | 2009-05-22 | Single-stage environment-friendly air swept type coal gas production method |
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| CN101565634A CN101565634A (en) | 2009-10-28 |
| CN101565634B true CN101565634B (en) | 2012-11-14 |
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| CN105174345A (en) * | 2015-10-16 | 2015-12-23 | 湖南天欣科技股份有限公司 | Method for treating phenolic wastewater by means of gas producer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2871535Y (en) * | 2005-09-28 | 2007-02-21 | 邹平县华星热能环保设备有限公司 | Water-cooled jacket set |
| CN101120076A (en) * | 2005-01-18 | 2008-02-06 | 恩奎斯特能源公司 | Method for steam reforming carbonaceous material |
| US20080110090A1 (en) * | 2006-11-15 | 2008-05-15 | C166, An Llc Registered In Florida | Gasification of fuel in a slagging gasifier |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101120076A (en) * | 2005-01-18 | 2008-02-06 | 恩奎斯特能源公司 | Method for steam reforming carbonaceous material |
| CN2871535Y (en) * | 2005-09-28 | 2007-02-21 | 邹平县华星热能环保设备有限公司 | Water-cooled jacket set |
| US20080110090A1 (en) * | 2006-11-15 | 2008-05-15 | C166, An Llc Registered In Florida | Gasification of fuel in a slagging gasifier |
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