CN204676046U - A kind of Sweet natural gas decarburization dewatering unit - Google Patents
A kind of Sweet natural gas decarburization dewatering unit Download PDFInfo
- Publication number
- CN204676046U CN204676046U CN201520334258.5U CN201520334258U CN204676046U CN 204676046 U CN204676046 U CN 204676046U CN 201520334258 U CN201520334258 U CN 201520334258U CN 204676046 U CN204676046 U CN 204676046U
- Authority
- CN
- China
- Prior art keywords
- molecular sieve
- natural gas
- sweet natural
- decarburization
- gas
- 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.)
- Active
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Drying Of Gases (AREA)
Abstract
The utility model relates to a kind of Sweet natural gas decarburization dewatering unit, comprises the strainer, feed heater, decarburization membrane separation apparatus, dehydrated film separator, the molecular sieve water separation tower that are connected successively by air delivering pipeline; Also comprise be connected with dehydrated film separator go out watercooler and gas-liquid separator, the resurgent gases well heater be connected with molecular sieve dehydration tower bottom, be connected water cooler and gas-liquid separator with molecular sieve dehydration top of tower.The utility model adopts membrane separation process to combine to Sweet natural gas decarburization, dehydration with molecular sieve dehydration, avoids the problem that line equipment is corroded and dewatering process molecular sieve work-ing life is short of Sweet natural gas tradition decarbonization process.
Description
Technical field
The utility model relates to a kind of Sweet natural gas decarburization dewatering unit, is specifically related to the process unit that a kind of embrane method decarburization, dehydration and molecular sieve dehydration combine.
Background technology
From the Sweet natural gas of oil-gas field or long distance pipeline, main component is methane, also containing impurity such as a small amount of heavy hydrocarbon, carbonic acid gas, hydrogen sulfide, water, mercury.First must by CO during production natural gas liquids
2, moisture, heavy hydrocarbon, mercury etc. removes, to avoid CO
2, moisture, heavy hydrocarbon etc. freeze clog downstream pipeline and equipment at low temperatures, and the corrosion that sulphur, mercury etc. produce equipment.
Current natural qi exhaustion CO
2most employing hydramine method, adopts MDEA(N-methyldiethanolamine) solvent removal CO
2, the method removes CO
2need with special formula solvent, cost is very high, and MDEA solution also easy corroded pipeline and equipment.
Natural gas dehydration process, comparatively conventional is molecular sieve dehydration at present.Need after molecular sieve dehydration to regenerate.Molecular sieve is after Reusability and regeneration, and its dehydrating effect will decline, and improves regeneration temperature and can improve the loading capacity of molecular sieve after regeneration, but regeneration temperature high work-ing life that can shorten molecular sieve.
Summary of the invention
The purpose of this utility model is to provide a kind of simple Sweet natural gas decarburization dewatering unit, solve the line equipment corrosion of traditional decarbonization process and dewatering process molecular sieve work-ing life short problem.
A kind of Sweet natural gas decarburization dewatering unit of the present utility model, comprises the strainer, feed heater, decarburization membrane separation apparatus, dehydrated film separator, the molecular sieve water separation tower that are connected successively by air delivering pipeline; Also comprise be connected with dehydrated film separator go out watercooler and gas-liquid separator, the resurgent gases well heater be connected with molecular sieve dehydration tower bottom, be connected water cooler and gas-liquid separator with molecular sieve dehydration top of tower.
The film that described decarburization membrane separation apparatus uses is cellulose acetate membrane or polyimide film or polysulfone membrane.
The film that described dehydrated film separator uses is cellulose acetate film.
Described molecular sieve water separation tower is two.
The utility model adopts membrane separation apparatus decarburization, selects CO
2and H
2s has better perviousness, and carrys out decarburization to Sweet natural gas main component without chemosmotic film, the pipeline that current Sweet natural gas decarburization can be avoided to adopt hydramine method to bring and equipment corrosion problem.Adopt film dehydration to combine with molecular sieve dehydration technology, first adopt membrane separation apparatus to remove most of moisture in Sweet natural gas, then adopt molecular sieve to carry out deep dehydration, effectively can reduce the working load of molecular sieve, prolongation molecular sieve work-ing life.
Adopt membrane separation technique can simplify Sweet natural gas decarburization dewatering process, equipment is simple, processing ease, and floor space is little, does not need additionally to add solvent, also do not need regeneration, non-secondary pollution.The pressure of Sweet natural gas itself can be utilized as impellent, and turndown ratio is large.Can by the treatment capacity regulating membrane area and process parameter control to adapt to.
Accompanying drawing explanation
Fig. 1 is the utility model device schema.
In figure, the meaning of each numbering is as follows:
1-wet natural gas; 2-CO
2and H
2s; 3-waste water; 4-waste water; 5-dry gas;
1-1-strainer; 1-2-feed heater; 1-3-decarburization membrane separation apparatus; 1-4-dehydrated film separator; 1-5-water cooler; 1-6-gas-liquid separator; 1-7a, 1-7b-molecular sieve water separation tower; 1-8-well heater; 1-9-water cooler; 1-10-gas-liquid separator.
Embodiment
In conjunction with Figure of description, the technical process of this device is.
The wet natural gas 1(pressure come from natural gas pipeline is about 4.5MPa) by self pressure through filter 1-1 filters solid particles, send into feed heater 1-2, be heated to 3-35 DEG C, send into decarburization membrane separation apparatus 1-3.The film that decarburization membrane separation apparatus 1-3 adopts is cellulose acetate membrane or polyimide film or polysulfone membrane, and this type of film is to CO
2and H
2the removal effect of S is fine.CO
2and H
2s discharges from the per-meate side of film, and on high-tension side Sweet natural gas removes CO
2and H
2be admitted to dehydrated film separator 1-4 after S, water is discharged by the per-meate side of film.The steam that dehydrated film separator is discharged may carry a small amount of CH secretly
4.The moisture that dehydrated film separator is discharged cools through water cooler 1-5 again, enters gas-liquid separator 1-6, isolates waste water and CH
4, CH
4gas is entered by molecular sieve water separation tower 1-7a top with the on high-tension side Sweet natural gas of dehydrated film separator 1-4, through molecular sieve filling layer, discharge by bottom molecular sieve water separation tower 1-7a, dry gas after dehydration is divided into two strands, one is as the resurgent gases of molecular sieve water separation tower, and another stock enters next step operation.After the dry gas heater via 1-8 heating of resurgent gases, molecular sieve water separation tower 1-7b is entered by bottom molecular sieve water separation tower 1-7b, molecular sieve is regenerated, dry gas after regenerated molecular sieve separates waste water and Sweet natural gas through water cooler 1-9, gas-liquid separator 1-10 successively, and natural gas via pipeline is connected with dehydrated film separator 1-4 export gas pipeline.
Claims (4)
1. a Sweet natural gas decarburization dewatering unit, is characterized in that the strainer, feed heater, decarburization membrane separation apparatus, dehydrated film separator, the molecular sieve water separation tower that are connected successively by air delivering pipeline; Also comprise be connected with dehydrated film separator go out watercooler and gas-liquid separator, the resurgent gases well heater be connected with molecular sieve dehydration tower bottom, the water cooler be connected with molecular sieve dehydration top of tower and gas-liquid separator.
2. a kind of Sweet natural gas decarburization dewatering unit as claimed in claim 1, is characterized in that decarburization film is cellulose acetate membrane or polyimide film or polysulfone membrane.
3. a kind of Sweet natural gas decarburization dewatering unit as claimed in claim 1, is characterized in that dehydrated film is cellulose acetate film.
4. a kind of Sweet natural gas decarburization dewatering unit as claimed in claim 1, is characterized in that molecular sieve water separation tower is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520334258.5U CN204676046U (en) | 2015-05-22 | 2015-05-22 | A kind of Sweet natural gas decarburization dewatering unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520334258.5U CN204676046U (en) | 2015-05-22 | 2015-05-22 | A kind of Sweet natural gas decarburization dewatering unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204676046U true CN204676046U (en) | 2015-09-30 |
Family
ID=54175752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520334258.5U Active CN204676046U (en) | 2015-05-22 | 2015-05-22 | A kind of Sweet natural gas decarburization dewatering unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204676046U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779056A (en) * | 2016-05-16 | 2016-07-20 | 重庆耐德能源装备集成有限公司 | Natural gas removing system and reproduction device thereof |
| CN106524666A (en) * | 2016-10-28 | 2017-03-22 | 银川天佳能源科技股份有限公司 | Integral mobile natural gas liquefaction device |
| CN109722317A (en) * | 2019-03-01 | 2019-05-07 | 西安鸿钧睿泽新材料科技有限公司 | Based on wet reclamation CO2The natural gas decarbonization system and method for adsorbent material |
-
2015
- 2015-05-22 CN CN201520334258.5U patent/CN204676046U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779056A (en) * | 2016-05-16 | 2016-07-20 | 重庆耐德能源装备集成有限公司 | Natural gas removing system and reproduction device thereof |
| CN105779056B (en) * | 2016-05-16 | 2018-11-30 | 重庆耐德能源装备集成有限公司 | A kind of natural gas removing system and its regenerating unit |
| CN106524666A (en) * | 2016-10-28 | 2017-03-22 | 银川天佳能源科技股份有限公司 | Integral mobile natural gas liquefaction device |
| CN106524666B (en) * | 2016-10-28 | 2022-10-21 | 宁夏凯添燃气发展股份有限公司 | Integrated mobile natural gas liquefaction device |
| CN109722317A (en) * | 2019-03-01 | 2019-05-07 | 西安鸿钧睿泽新材料科技有限公司 | Based on wet reclamation CO2The natural gas decarbonization system and method for adsorbent material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204619690U (en) | A kind of coke-stove gas preparing liquefied natural gas carbon dioxide in process removes device | |
| CN101955828B (en) | Method for removing hydrogen sulfide from natural gas | |
| DK2903719T3 (en) | Method and apparatus for extracting a gas from a gas mixture using a venturi ejector | |
| CN104927951A (en) | Decarbonization and dehydration process for natural gas | |
| CN101126042B (en) | Integrative purification and separation method for natural gas | |
| CN204676046U (en) | A kind of Sweet natural gas decarburization dewatering unit | |
| CN103232871A (en) | Methane purification system and methane purification technology thereof | |
| CN110697655A (en) | Method and system device for recovering hydrogen through membrane separation and concentration | |
| CN103170218B (en) | Methane purifying method and system | |
| CN102489120B (en) | Low temperature methanol wash method and equipment | |
| CN107433107A (en) | C2+ two sections of points of concentration PSA methods are reclaimed from oil refinery dry gas | |
| CN111232924A (en) | Device and method for purifying and recovering hydrogen from hydrogen-containing fuel gas and application | |
| CN104745260A (en) | Method and equipment for preparing and storing high-quality natural gas from marsh gas | |
| CN103480275A (en) | Device and method for acid gas concentration, desalination and separation after doctor solution regeneration | |
| CN106433832A (en) | Process and device for removing CO2 in natural gas | |
| CN102585953A (en) | Efficient variable-frequency and variable-pressure adsorptive separation and purification method for methane and carbon dioxide | |
| CN102161925A (en) | Process for producing biological natural gas by using methane | |
| CN103320193B (en) | Device and method for manufacturing high quality natural gas by purifying methane | |
| CN204436362U (en) | A kind of utilize gas well mouth pressure to carry out UF membrane device and system | |
| CN109722317A (en) | Based on wet reclamation CO2The natural gas decarbonization system and method for adsorbent material | |
| CN104190201A (en) | Landfill gas separating and purifying process and device | |
| CN106753633A (en) | A kind of natual gas dehydrate unit | |
| CN104073310B (en) | A kind of natural gas purification and dry apparatus and method | |
| CN203284374U (en) | Pure integration dehydration device of liquefied hydrocarbon | |
| CN205152165U (en) | Carbon dioxide separator is deviate from to supersonic speed natural gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190102 Granted publication date: 20150930 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210102 Granted publication date: 20150930 |