CN201809322U - Oxygenous coal bed gas purifying device - Google Patents
Oxygenous coal bed gas purifying device Download PDFInfo
- Publication number
- CN201809322U CN201809322U CN2010205299515U CN201020529951U CN201809322U CN 201809322 U CN201809322 U CN 201809322U CN 2010205299515 U CN2010205299515 U CN 2010205299515U CN 201020529951 U CN201020529951 U CN 201020529951U CN 201809322 U CN201809322 U CN 201809322U
- Authority
- CN
- China
- Prior art keywords
- containing oxygen
- gas
- coalbed methane
- methane containing
- refining plant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003245 coal Substances 0.000 title abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000007789 gas Substances 0.000 claims abstract description 53
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000001301 oxygen Substances 0.000 claims abstract description 40
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 40
- 239000002253 acid Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000001179 sorption measurement Methods 0.000 claims description 34
- 238000010521 absorption reaction Methods 0.000 claims description 19
- 238000000926 separation method Methods 0.000 claims description 14
- 238000007670 refining Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000002594 sorbent Substances 0.000 claims description 6
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000007420 reactivation Effects 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract 3
- 230000009466 transformation Effects 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 150000001412 amines Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000011328 necessary treatment Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model discloses an oxygenous coal bed gas purifying device which comprises a water sealing tank, a raw material gas compressor, a raw material gas deacidification absorbing tower and a transformation adsorbing system, wherein the water sealing tank, the raw material gas compressor, the raw material gas deacidification absorbing tower and the transformation adsorbing system are connected in series in sequence; the water sealing tank has a mixed water-cooling structure; and adsorbing liquid in the raw material gas deacidification absorbing tower is an alkylol amine aqueous solution used for adsorbing acid gas. The utility model adopts a structure for combining a mixed water-cooling and adsorbing tower and the transformation adsorbing system, and can more thoroughly remove impurities besides oxygen, nitrogen and methane in the oxygenous coal bed gas, provide favorable production condition for the liquefaction separating procedure and eliminate potential safety hazard caused by mixing methane and oxygen by adopting necessary treatment measures.
Description
Technical field
The utility model relates to a kind of the utilization and absorbs the device that absorption principle purifies, and relates in particular to a kind of coalbed methane containing oxygen refining plant.
Background technology
Coalbed methane containing oxygen be the colliery in recovery process for preventing gas explosion and outstanding, guarantee Safety of Coal Mine Production and elementary byproduct that pump drainage goes out; Its main component is a methane, and as can be seen, coal-seam gas is the energy and the industrial chemicals of outbalance from its component content.But because its composition is comparatively complicated, particularly containing aerobic in coal-seam gas, is breakneck combustion-supporting pro-knock agent, has restricted the comprehensive utilization of coalbed methane containing oxygen; In the practice, in order to save cost, coal-seam gas generally enters atmosphere in the coal mining process, causes the profligacy of resource and environment is polluted.
Along with science and technology development, the liquefaction technology of multiple coalbed methane containing oxygen has appearred.Wherein, the patent disclosure of ZL200610103425.0 cryogenic rectification method be applied to the separation and the liquefaction of coalbed methane containing oxygen, have the separation purity height, the simple advantage of apparatus structure.
But, there is more problem in coalbed methane containing oxygen cleaning section in this refrigeration techniques, can not remove wherein each kind of impurity of raw material more completely, influence follow-up liquefaction separation circuit, cause the liquefaction separation circuit not stablize and carry out, the singularity that particularly is not directed to coalbed methane containing oxygen is taked corresponding security measures, has the coalbed methane containing oxygen of making blast, incendiary hidden danger, the normal safety in production of influence has a strong impact on employee's personnel safety.
Therefore, need the purification process of existing coalbed methane containing oxygen be improved, can remove the impurity except oxygen, nitrogen and methane in the coalbed methane containing oxygen comparatively completely, for the liquefaction separation circuit provides good working condition, simultaneously, take the necessary processing measure, eliminate because methane and oxygen mix the potential safety hazard that causes.
The utility model content
In view of this, the utility model provides a kind of coalbed methane containing oxygen refining plant, can remove the impurity except oxygen, nitrogen and methane in the coalbed methane containing oxygen comparatively completely, for the liquefaction separation circuit provides good working condition, simultaneously, take the necessary processing measure, eliminate because methane and oxygen mix the potential safety hazard that causes.
A kind of coalbed methane containing oxygen refining plant of the present utility model comprises that water-sealed tank, feed gas compressor, the unstripped gas of serial connection remove acid absorption column and pressure swing adsorption system successively; Described water-sealed tank is for mixing water-cooling structure.
Further, pressure swing adsorption system comprises three adsorption towers in parallel;
Further, also be provided with gas-liquid separator between described water-sealed tank and the feed gas compressor; Feed gas compressor outlet and unstripped gas remove between the acid absorption column feed gas chiller also are set;
Further, unstripped gas removes and also to be sequentially set with gas-liquid separator behind tower aftercooler and the tower between acid absorption column outlet and the pressure swing adsorption system;
Further, described feed gas compressor is a two stages of compression;
Further, described pressure swing adsorption system purifies the coalbed methane containing oxygen outlet by a separator output that is used to filter micro-sorbent material powder;
Further, described adsorption tower is provided with the adsorbent reactivation cold blowing gas feed that is communicated in from the oxygen nitrogen mixed tail gas outlet of liquefaction and separation system.
The beneficial effects of the utility model are: the coalbed methane containing oxygen refining plant of the utility model structure, adopt and mix water-cooled, absorption tower and pressure swing adsorption system structure combining, can remove the impurity except oxygen, nitrogen and methane in the coalbed methane containing oxygen comparatively completely, for the liquefaction separation circuit provides good working condition, simultaneously, take the necessary processing measure, eliminate because methane and oxygen mix the potential safety hazard that causes.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Accompanying drawing is the utility model compression purification system structural representation.
Embodiment
Accompanying drawing is the utility model compression purification system structural representation, and as shown in the figure: the coalbed methane containing oxygen refining plant of present embodiment comprises that water-sealed tank 1, feed gas compressor 3, the unstripped gas of serial connection remove acid absorption column 5 and pressure swing adsorption system successively; As shown in the figure, pressure swing adsorption system comprises adsorption tower 8, adsorption tower 9 and adsorption tower 10 in parallel, certainly, can be that the adsorption tower of other quantity connects use; Water-sealed tank 1 is for mixing water-cooling structure, and it is aqueous alkanolamine that unstripped gas removes the absorption liquid that is used for inner acidic gas in the acid absorption column 5; Absorb at the sour gas in the coalbed methane containing oxygen, guarantee to remove comparatively completely sour gas, guarantee the safe operation of follow-up equipment.
In the present embodiment, pressure swing adsorption system comprises three adsorption towers in parallel, and the sorbent material of adsorption tower comprises that aromatic hydrocarbon sorbent material and sulphur soak active carbon from coal; Be beneficial to and remove impurity, prevent to influence end product quality; Improve the efficient of absorption process simultaneously; Employing sulphur soaks the mercury in the active carbon from coal absorption unstripped gas, avoids influence liquefaction separation circuit and assurance cost product quality.
In the present embodiment, also be provided with gas-liquid separator 2 between described water-sealed tank 1 and the feed gas compressor 3, prevent that liquid hit phenomenon from appearring in compressor 3, guarantees its safe operation; Feed gas compressor 3 outlets and unstripped gas remove between the acid absorption column 5 feed gas chiller 4 also are set, and lower temperature is beneficial to unstripped gas and normally absorbs except that acid absorption column 5; Unstripped gas removes and also to be sequentially set with gas-liquid separator 7 behind tower aftercooler 6 and the tower between acid absorption column 5 outlets and the pressure swing adsorption system, can reduce the impurity of bringing adsorption tower into after cooling and the gas-liquid separation, for adsorption cleaning provides the good adsorption condition.
In the present embodiment, described feed gas compressor 3 is a two stages of compression, and inter-stage all is provided with cooling and gas-liquid separator, reduces the single-stage compression ratio of pressurized gas, and the temperature of single-stage outlet, thereby cuts down the consumption of energy;
In the present embodiment, described pressure swing adsorption system purifies the coalbed methane containing oxygen outlet and exports liquefaction and separation system to by a separator 11 that is used to filter micro-sorbent material powder, guarantees to purify the cleaning of coalbed methane containing oxygen, avoids influencing the normal operation of liquefaction and separation system.
In the present embodiment, described adsorption tower (adsorption tower 8, adsorption tower 9 and adsorption tower 10) is provided with the adsorbent reactivation cold blowing gas feed that is communicated in from the oxygen nitrogen mixed tail gas outlet of liquefaction and separation system; Utilize tail gas to regenerate, save cost, and it is compact that field apparatus is arranged.
The utility model is when producing:
To contain oxygen coal seam unstripped gas from the lower concentration in colliery removes acid absorption column 5 and pressure swing adsorption system through 3 compressions of water-sealed tank 1 hybrid water-cooled, feed gas compressor and unstripped gas and purifies and remove impurity and be purified coalbed methane containing oxygen; Absorption liquid in the absorption tower is an aqueous alkanolamine, is used to deviate from sour gas; The unstripped gas of deviating from behind the sour gas removes raw material aromatic hydrocarbon wherein by the sorbent material in the adsorption tower; Simultaneously, add sulphur in the adsorption tower and soak the mercury that active carbon from coal is used for removing unstripped gas, finally obtaining main component is CH
4, N
2And O
2The purification coalbed methane containing oxygen.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1. a coalbed methane containing oxygen refining plant is characterized in that: comprise that water-sealed tank, feed gas compressor, the unstripped gas of serial connection remove acid absorption column and pressure swing adsorption system successively; Described water-sealed tank is for mixing water-cooling structure.
2. coalbed methane containing oxygen refining plant according to claim 1 is characterized in that: pressure swing adsorption system comprises three adsorption towers in parallel.
3. coalbed methane containing oxygen refining plant according to claim 2 is characterized in that: also be provided with gas-liquid separator between described water-sealed tank and the feed gas compressor; Feed gas compressor outlet and unstripped gas remove between the acid absorption column feed gas chiller also are set.
4. coalbed methane containing oxygen refining plant according to claim 3 is characterized in that: unstripped gas removes and also to be sequentially set with gas-liquid separator behind tower aftercooler and the tower between acid absorption column outlet and the pressure swing adsorption system.
5. coalbed methane containing oxygen refining plant according to claim 4 is characterized in that: described feed gas compressor is a two stages of compression.
6. coalbed methane containing oxygen refining plant according to claim 5 is characterized in that: described pressure swing adsorption system purifies the coalbed methane containing oxygen outlet by a separator output that is used to filter micro-sorbent material powder.
7. coalbed methane containing oxygen refining plant according to claim 6 is characterized in that: described adsorption tower is provided with the adsorbent reactivation cold blowing gas feed that is communicated in from the oxygen nitrogen mixed tail gas outlet of liquefaction and separation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205299515U CN201809322U (en) | 2010-09-15 | 2010-09-15 | Oxygenous coal bed gas purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205299515U CN201809322U (en) | 2010-09-15 | 2010-09-15 | Oxygenous coal bed gas purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201809322U true CN201809322U (en) | 2011-04-27 |
Family
ID=43892261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205299515U Expired - Lifetime CN201809322U (en) | 2010-09-15 | 2010-09-15 | Oxygenous coal bed gas purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201809322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276925A (en) * | 2015-11-27 | 2016-01-27 | 中煤科工集团重庆研究院有限公司 | Low-temperature purification method and device for oxygen-containing coal bed gas |
-
2010
- 2010-09-15 CN CN2010205299515U patent/CN201809322U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276925A (en) * | 2015-11-27 | 2016-01-27 | 中煤科工集团重庆研究院有限公司 | Low-temperature purification method and device for oxygen-containing coal bed gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RE Free format text: FORMER NAME: COAL SCIENTIFIC RESEARCH INSTITUTE CHONGQING INSTITUTE Owner name: CHINA COAL TECHNOLOGY ENGINEERING GROUP CHONGQING Free format text: FORMER NAME: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RESEARCH INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee after: Chongqing Research Institute of China Coal Technology & Engineering Group Corp. Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee before: Chongqing Institute of Coal Science Research Institute |
|
| CP03 | Change of name, title or address |
Address after: 400039 Chongqing Jiulongpo Branch City Road No. 6 Patentee after: CCTEG CHONGQING RESEARCH INSTITUTE Co.,Ltd. Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee before: Chongqing Research Institute of China Coal Technology & Engineering Group Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110427 |
|
| CX01 | Expiry of patent term |