CN201381844Y - Catalyzing device for increasing underground coal gasification gas quality - Google Patents
Catalyzing device for increasing underground coal gasification gas quality Download PDFInfo
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- CN201381844Y CN201381844Y CN200920105771U CN200920105771U CN201381844Y CN 201381844 Y CN201381844 Y CN 201381844Y CN 200920105771 U CN200920105771 U CN 200920105771U CN 200920105771 U CN200920105771 U CN 200920105771U CN 201381844 Y CN201381844 Y CN 201381844Y
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- 239000003245 coal Substances 0.000 title claims abstract description 32
- 238000002309 gasification Methods 0.000 title claims abstract description 31
- 230000003197 catalytic effect Effects 0.000 claims abstract description 16
- 238000010926 purge Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 7
- 238000007664 blowing Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 44
- 239000003034 coal gas Substances 0.000 description 22
- 229910052739 hydrogen Inorganic materials 0.000 description 13
- 239000001257 hydrogen Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 206010037544 Purging Diseases 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- INPLXZPZQSLHBR-UHFFFAOYSA-N cobalt(2+);sulfide Chemical compound [S-2].[Co+2] INPLXZPZQSLHBR-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model relates to a catalyzing device for increasing underground coal gasification gas quality in a non-shaft underground coal gasifier, which comprises an underground gas delivery pipe, a lifting cage, a lifting cage handing and lifting device and a high-pressure steam blowing device, wherein the lifting cage is arranged in the underground gas delivery pipe via the lifting cage hanging and lifting device, the high-pressure steam blowing device is arranged in the underground gas delivery pipe, and the lifting cage is filled with catalytic agents. The catalyzing device has the advantages of guaranteeing long-term high-efficient utilization of the catalytic agents for increasing underground coal gasification gas quality, improving gas quality, and having simple structure and simple and convenient using and mounting.
Description
Technical field
The utility model belongs to the underground coal gasification(UCG) field, particularly a kind of catalytic unit that improves the underground coal gasification(UCG) gas quality in no well formula coal underground gasifying furnace.
Background technology
Underground coal gasification(UCG) is the technology that on the spot underground coal is transformed into fuel gas, becomes traditional physics and mines to the chemistry coal mining, has characteristics such as safe, environmental friendliness.The content of carbon monoxide (chemical molecular formula is CO) is along with the difference of using gasifying agent changes in the coal gas that the underground coal gasification(UCG) process produces, and when gasifying agent was air, CO content was about 20% in the coal gas of production, and (chemical molecular formula is H to hydrogen
2) be about 13%, H
2With the ratio of CO about 0.65; When gasifying agent was oxygen enrichment (oxygen content is about 70%) and water vapour, the content of CO was 21%～31% in the coal gas, H
2Content be 34～43%, H
2And the ratio of CO is between 1.1～1.92.
In the coal gas that underground coal gasification(UCG) is produced the content of CO is higher, has surpassed city artificial coal gas CO content less than 10% standard, from wholesomeness and the safety that uses, should reduce the content of CO; In addition, along with hydrogen being the industrial new development of raw material and the rise of Hydrogen Energy economy, H
2Demand very big; The U.S. Patent Publication of the patent No. 3823775 a kind of a kind of catalytic unit that in the blind-hole type underground gasification, uses, this device is to utilize the carbon monodixe conversion reaction to improve the square law device of gas quality, this square law device is used in the blind-hole type underground gasification process, and its catalyzer is attached on the gasifying agent conveyance conduit outer wall, the modes of emplacement of its catalyzer is unfavorable for the replacing of catalyzer, there is not the catalyst purge device, exist the long-term utilization rate of using not high, catalyzer is easily by adhesion failures such as tar, and causes the problems such as obstruction of gas passage.
Summary of the invention
The purpose of this utility model is for the quality that improves underground coal gasification(UCG) coal gas and realizes long-term efficient utilization of catalyzer and a kind of catalytic unit that improves the underground coal gasification(UCG) gas quality of proposition.
To achieve these goals, the technical solution of the utility model is, a kind of catalytic unit that improves the underground coal gasification(UCG) gas quality, comprise the underground gas carrier pipe, carry cage, carry cage suspention lifting appliance and high steam blow device, the described cage of carrying will be proposed the cage lifting and be placed in the underground gas carrier pipe by carrying cage suspention lifting appliance, and described high steam blow device is arranged in the underground gas carrier pipe; Described carrying is equipped with catalyzer in the cage.
Described high steam blow device comprises annular coil pipe, nozzle is arranged on the annular coil pipe, the nozzle direction is towards the annular disk tube hub, the annular coil pipe is set on the inwall of the underground gas carrier pipe port of export, on annular coil pipe, be connected to the high steam carrier pipe, carry cage can around high steam annular coil pipe in pass up and down.
Need promote cage for the dirt that purges the catalyzer calculus in the such scheme, this kind method can be fixed on the high steam scavenging conduit gas exit side of underground gas carrier pipe, the high steam carrier pipe can maintain static for hard tube, if arts demand carry cage motionless then: described high steam blow device comprises annular coil pipe, nozzle is arranged on the annular coil pipe, the nozzle direction is towards the annular disk tube hub, the annular coil pipe be set at carry cage around, be connected to the high steam carrier pipe on annular coil pipe, described carrier pipe is a flexible pipe.
The beneficial effects of the utility model are:
1. the utility model has guaranteed long-time efficient utilization of catalyzer of underground coal gasification(UCG) gas quality, and gas quality is improved;
2. the utility model is simple in structure, uses simple installation.
Below in conjunction with drawings and Examples the utility model being done one describes in detail.
Description of drawings
Fig. 1 is that the utility model high steam scavenging conduit is around structural representation on the inwall that is arranged on the underground gas carrier pipe;
Fig. 2 carries the basket structure schematic diagram for the utility model;
Fig. 3 carries the cylindrical volume frame of cage distribution schematic diagram, (A of Fig. 2 is to view) for the utility model;
Fig. 4 carries the basket structure schematic diagram for what the utility model had that high steam purges annular coil pipe.
The specific embodiment
Embodiment
A kind of embodiment that improves the catalytic unit of underground coal gasification(UCG) gas quality, referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of catalytic unit that improves the underground coal gasification(UCG) gas quality, comprise underground gas carrier pipe 1, carry cage 2, carry cage suspention lifting appliance and high steam blow device, the described cage of carrying will be proposed the cage lifting and be placed in the underground gas carrier pipe by carrying cage suspention lifting appliance, and described high steam blow device is provided with in the underground gas carrier pipe; Described carrying is equipped with catalyzer 4 in the cage, described high steam blow device is provided with nozzle 5-1.
Described high steam blow device comprises annular coil pipe 5, described nozzle is arranged on the annular coil pipe, its nozzle is towards the annular disk tube hub, the annular coil pipe is set on the inwall of underground gas carrier pipe, on annular coil pipe, be connected to high steam carrier pipe 6, the high steam carrier pipe is connected with the ground high pressure steam generator, carry cage promote or drop on down by the suspention lifting appliance around high steam annular coil pipe in pass up and down, the coal gas that produces in the underground coal gasification(UCG) process enters in the underground gas carrier pipe, coal gas contacts the back carbon monodixe conversion reaction takes place with catalyzer in carrying cage, hydrogen in the coal gas increases carbon monoxide and reduces, and the quality of coal gas is improved.Coal gas is delivered to ground by the underground gas carrier pipe, and is transported to ground coal gas treating apparatus by gas flue 7.
The described cage suspention lifting appliance of carrying comprises reductor 8, wirerope 9 and pulley 10, upper port at the underground gas carrier pipe is provided with sealing stifled 11, sealing is stifled to be connected by flange with the underground gas carrier pipe, this kind is connected with and is beneficial to the stifled easy accessibility of sealing, be convenient to propose the replacing of catalyzer in the cage, wirerope one end hangs in the underground gas carrier pipe and carries cage, and the wirerope other end passes that sealing is stifled to be walked around pulley and link to each other with reductor.
In the underground coal gasification(UCG) process, tar in the coal gas etc. can stick to the catalyst surface of carrying in the cage, cause the underground gas carrier pipe to stop up, simultaneously, impurity such as tar make coal gas not contact with catalyzer attached to catalyst surface, cause the carbon monodixe conversion reaction terminating, thereby the high steam blow device is disposed in the underground gas carrier pipe port of export (being easy to install); When needs purge when carrying the attachment that cage and catalyzer, removing adhere to, its process is to carry to the annular coil pipe of high pressure steam blowing equipment carrying cage by carrying cage suspention lifting appliance earlier, the unlatching high steam purges, cage is carried in slow oscilaltion while purging, with thoroughly clean purgings such as the tar that adheres to, and then carrying the middle and lower part that cage is placed into the underground gas carrier pipe;
Need promote cage for the dirt that purges the catalyst surface knot in the such scheme, this kind method can purge the gas exit end that annular coil pipe is fixed on the underground gas carrier pipe to high steam, the high steam carrier pipe can maintain static for hard tube, adopts the device of this kind method to have the short advantage of described high steam carrier pipe; If arts demand carry cage motionless then: described high steam blow device comprises annular coil pipe, nozzle is arranged on the annular coil pipe, the nozzle direction is towards the annular disk tube hub, the annular coil pipe be set at carry cage around, be connected to the high steam carrier pipe on annular coil pipe, described high steam carrier pipe is a flexible pipe.
In the underground coal gasification(UCG) real process, the thermometric facility is installed in the underground gas carrier pipe,, can be placed into the best position of reaction to catalyzer by the indication of temperature.Point for measuring temperature can be placed on the two ends up and down of carrying cage.Monitor the gasifying agent injection pressure and the gas exit pressure of underground gasification furnace in real time, and the content of carbon monoxide in the coal gas and hydrogen, according to the pressure differential of turnover gas and the variation of carbon monoxide and hydrogen content ratio, whether decision starts the high steam purging process, meets standard with the carbon monoxide in the unimpeded and coal gas that guarantees gas conveying tube and the ratio of hydrogen.
In the coal gas that underground coal gasification(UCG) is produced the content of CO is higher, has surpassed city artificial coal gas CO content less than 10% standard, from wholesomeness and the safety that uses, should reduce the content of CO; In addition, along with being the industrial new development of raw material and the rise of Hydrogen Energy economy with hydrogen, the demand of H2 is very big.CO and H2 can change into CH4 under the effect of catalyzer, i.e. the coal gas of underground coal gasification(UCG) can change into the higher natural gas of calorific value by methanation reaction, and it is 3 that methanation reaction requires the ratio of H2 and CO; In addition, requiring the ratio of H2 and CO in the ammonia synthesizing industry is 2.8.
So from the angle of calorific value, CO is not transformed into necessity of H2, because of both calorific values similar, but the angle of the health, safety and the comprehensive utilization that use from coal gas, it is just very necessary that CO is transformed into H2.
The reaction that CO is transformed into H2 is called the CO transformationreation, and promptly carbon monoxide and water vapour are transformed into hydrogen and carbon dioxide on suitable catalyzer, and reaction equation is as follows:
The carbon monoxide reacting condition need adopt the carrying out of catalyzer accelerated reaction, temperature is about 300 ℃, catalyzer adopts the mixture of tri-iron tetroxide and chrome green, be called high temperature conversion catalyst, can anti-low-sulfur, the ratio that tri-iron tetroxide accounts in present embodiment tri-iron tetroxide and the chrome green mixture should be more than or equal to 74%, and the ratio that chrome green accounts for should be more than or equal to 7%, the mixture catalyzer that also has a kind of cobalt sulfide and molybdenum sulfide can sulfur poisoning-resistant.
In the underground coal gasification(UCG) process, utilize the carbon monodixe conversion reaction to improve the content of hydrogen in the underground gasified gas, reduce the content of carbon monoxide simultaneously, thereby raising gas quality, the best place of placing catalyzer is the middle and lower part at the underground gas carrier pipe, because these local gas temperature height, can satisfy the temperature requirement of carbon monodixe conversion reaction, simultaneously, gas temperature height vapour content wherein is also high, for the carbon monodixe conversion reaction provides reactants water steam, and excessive water vapour helps transformationreation to carry out to the direction that generates hydrogen.In addition, the carbon monodixe conversion reaction is exothermic reaction, and the flow velocity of coal gas is higher in the underground gas carrier pipe, can in time take reaction heat out of, prevents that catalyzer from damaging because of high temperature.
For catalyzer can be contacted fully with coal gas, the described cage of carrying is that a cylindrical frame structure such as Fig. 3 are shown in Figure 3, and the column type that has been circular layout in carrying cage is compiled frame 2-1, and catalyzer 4 is filled in column type and compiles in the frame; According to underground gas internal diameter of delivery hose size, carry quantity, the diameter of column type volume frame in the cage, length and spacing distance are all different.
Being 500 millimeters with the underground gas internal diameter of delivery hose is example, and the diameter of carrying cage is 380 millimeters, and diameter is that the number of 40 millimeters column type volume frame is 24, divides two and is circular layout in carrying cage, and center arrangement one diameter is that 100 millimeters column type is compiled frame; The length of column type volume frame can be between 3～6 meters.
Fig. 4 signal be have that high steam purges annular coil pipe carry the basket structure schematic diagram, the described cage of carrying also is to be a cylindrical frame structure, the column type that has been circular layout in carrying cage is compiled frame, catalyzer is filled in column type and compiles in the frame; Simultaneously be provided with high steam and purge annular coil pipe 5 in the outmost turns of carrying cage.
Claims (7)
1. catalytic unit that improves the underground coal gasification(UCG) gas quality, it is characterized in that, described device comprises the underground gas carrier pipe, carries cage, carries cage suspention lifting appliance and high steam blow device, the described cage of carrying will be proposed the cage lifting and be placed in the underground gas carrier pipe by carrying cage suspention lifting appliance, and described high steam blow device is arranged in the underground gas carrier pipe; Described carrying is equipped with catalyzer in the cage.
2. a kind of catalytic unit that improves the underground coal gasification(UCG) gas quality according to claim 1, it is characterized in that, described high steam blow device comprises annular coil pipe, annular coil pipe is provided with nozzle, the direction of nozzle is towards the annular disk tube hub, the annular coil pipe is set on the inwall of underground gas carrier pipe, is connected to the high steam carrier pipe on annular coil pipe, carry cage can around high steam annular coil pipe in pass up and down.
3. a kind of catalytic unit that improves the underground coal gasification(UCG) gas quality according to claim 2 is characterized in that described high steam purges the gas exit end that annular coil pipe is fixed on the underground gas carrier pipe.
4. a kind of catalytic unit that improves the underground coal gasification(UCG) gas quality according to claim 1 is characterized in that, describedly carries the middle and lower part that cage is placed into the underground gas carrier pipe.
5. a kind of catalytic unit that improves the underground coal gasification(UCG) gas quality according to claim 1, it is characterized in that, described high steam blow device comprises annular coil pipe, annular coil pipe is provided with nozzle, the direction of nozzle is towards the annular disk tube hub, the annular coil pipe be set at carry cage around, on annular coil pipe, be connected to the high steam carrier pipe, described carrier pipe is a flexible pipe.
6. a kind of catalytic unit that improves the underground coal gasification(UCG) gas quality according to claim 1, it is characterized in that, the described cage suspention lifting appliance of carrying comprises reductor, wirerope and pulley, it is stifled to be provided with sealing in the upper port of described underground gas carrier pipe, wirerope one end hangs in the underground gas carrier pipe and carries cage, and the wirerope other end passes that sealing is stifled to be walked around pulley and link to each other with reductor.
7. a kind of catalytic unit that improves the underground coal gasification(UCG) gas quality according to claim 1 is characterized in that, the described cage of carrying is a cylindrical frame structure, and the column type that has been circular layout in carrying cage is compiled frame, and catalyzer is filled in column type and compiles in the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920105771U CN201381844Y (en) | 2009-03-09 | 2009-03-09 | Catalyzing device for increasing underground coal gasification gas quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920105771U CN201381844Y (en) | 2009-03-09 | 2009-03-09 | Catalyzing device for increasing underground coal gasification gas quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201381844Y true CN201381844Y (en) | 2010-01-13 |
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ID=41525321
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|---|---|---|---|
| CN200920105771U Expired - Fee Related CN201381844Y (en) | 2009-03-09 | 2009-03-09 | Catalyzing device for increasing underground coal gasification gas quality |
Country Status (1)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603648A (en) * | 2013-11-29 | 2014-02-26 | 新奥气化采煤有限公司 | Underground gasification device |
| CN103603647A (en) * | 2013-11-29 | 2014-02-26 | 新奥气化采煤有限公司 | Underground gasifier and application method thereof |
| CN106223925A (en) * | 2016-08-24 | 2016-12-14 | 中为(上海)能源技术有限公司 | Auxiliary raw materials for production feed process for coal underground gasifying technology |
| CN107631309A (en) * | 2017-09-14 | 2018-01-26 | 江苏航天惠利特环保科技有限公司 | A kind of catalysis burning waste gas purification furnace for being conveniently replaceable catalytic bed |
| US9963949B2 (en) | 2012-06-28 | 2018-05-08 | Carbon Energy Limited | Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification |
| US9976403B2 (en) | 2012-06-28 | 2018-05-22 | Carbon Energy Limited | Method for shortening an injection pipe for underground coal gasification |
-
2009
- 2009-03-09 CN CN200920105771U patent/CN201381844Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9963949B2 (en) | 2012-06-28 | 2018-05-08 | Carbon Energy Limited | Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification |
| US9976403B2 (en) | 2012-06-28 | 2018-05-22 | Carbon Energy Limited | Method for shortening an injection pipe for underground coal gasification |
| CN103603648A (en) * | 2013-11-29 | 2014-02-26 | 新奥气化采煤有限公司 | Underground gasification device |
| CN103603647A (en) * | 2013-11-29 | 2014-02-26 | 新奥气化采煤有限公司 | Underground gasifier and application method thereof |
| CN103603647B (en) * | 2013-11-29 | 2016-05-25 | 新奥气化采煤有限公司 | A kind of underground gasification furnace and using method thereof |
| CN103603648B (en) * | 2013-11-29 | 2016-06-01 | 新奥气化采煤有限公司 | A kind of underground gasification device |
| CN106223925A (en) * | 2016-08-24 | 2016-12-14 | 中为(上海)能源技术有限公司 | Auxiliary raw materials for production feed process for coal underground gasifying technology |
| CN107631309A (en) * | 2017-09-14 | 2018-01-26 | 江苏航天惠利特环保科技有限公司 | A kind of catalysis burning waste gas purification furnace for being conveniently replaceable catalytic bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING ZHONGKUANG KENENG COAL UNDERGROUND GASIFIC Free format text: FORMER OWNER: LI WENJUN Effective date: 20091218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Wenjun Inventor after: Hao Tingyun Inventor after: Zhu Huixiang Inventor before: Li Wenjun Inventor before: Hao Tingyun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI WENJUN; HAO TINGYUN TO: LI WENJUN; HAO TINGYUN; ZHU HUIXIANG |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20091218 Address after: No. 101, building B, No. 3 South Third Ring Road, Beijing, Fengtai District: 100068 Patentee after: Beijing Zhongkuang Keneng Underground Coal Gasification Technology Research Center Address before: Beijing City, Fengtai District No. 4 East Building Room 1005, zip code: 100068 Co-patentee before: Hao Tingyun Patentee before: Lee Wenjun |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING ZHONGKUANG TIANSHENG ENERGY TECHNOLOGY CO. Free format text: FORMER OWNER: BEIJING ZHONGKUANG KE NENG RESEARCH CENTER FOR UNDERGROUND COAL GASIFICATION TECHNOLOGY Effective date: 20121107 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100068 FENGTAI, BEIJING TO: 100027 CHAOYANG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20121107 Address after: 100027 Beijing city Chaoyang District Chaowai Street No. 6 B 9 layer 1005 Patentee after: Beijing Zhongkuang Tiansheng Energy Technology Co Ltd Address before: 100068 No. 101, building B, No. 3 South Third Ring Road, Beijing, Fengtai District Patentee before: Beijing Zhongkuang Keneng Underground Coal Gasification Technology Research Center |
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Address after: 100027 Beijing city Chaoyang District Chaowai Street No. 6 B 9 layer 1005 Patentee after: ZHONGKUANG TIANSHENG ENERGY TECHNOLOGY CO., LTD. Address before: 100027 Beijing city Chaoyang District Chaowai Street No. 6 B 9 layer 1005 Patentee before: Beijing Zhongkuang Tiansheng Energy Technology Co Ltd |
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