CN104560253A - Marsh gas membrane separation purification carbon dioxide gas source heat pump cold/hot coproduction technique - Google Patents
Marsh gas membrane separation purification carbon dioxide gas source heat pump cold/hot coproduction technique Download PDFInfo
- Publication number
- CN104560253A CN104560253A CN201410741011.5A CN201410741011A CN104560253A CN 104560253 A CN104560253 A CN 104560253A CN 201410741011 A CN201410741011 A CN 201410741011A CN 104560253 A CN104560253 A CN 104560253A
- Authority
- CN
- China
- Prior art keywords
- heat pump
- carbon dioxide
- heat
- biogas
- source heat
- 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.)
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 64
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 28
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 26
- 239000012528 membrane Substances 0.000 title claims abstract description 25
- 238000000926 separation method Methods 0.000 title claims abstract description 7
- 238000000746 purification Methods 0.000 title abstract description 9
- 238000000034 method Methods 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000003345 natural gas Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000005516 engineering process Methods 0.000 claims description 12
- 235000011089 carbon dioxide Nutrition 0.000 claims description 10
- 235000009508 confectionery Nutrition 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000006200 vaporizer Substances 0.000 description 2
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention belongs to the technical field of preparation of vehicle combustible gas by marsh gas purification, particularly a marsh gas membrane separation purification carbon dioxide gas source heat pump cold/hot coproduction technique. The technique comprises a water containing marsh gas compression device, a membrane separation methane purification device, a gas source heat pump device and a central control device. The pretreated marsh gas enters the water containing marsh gas compression device; and the compressed marsh gas is cooled by an after-cooler, enters the carbon dioxide gas source heat pump device for cooling and dewatering, enters a filter, is heated by hot water generated by the carbon dioxide gas source heat pump device to proper temperature, and enters the membrane separation device. The biogas is purified, so that the purified gas can achieve the standard for vehicle natural gas. The carbon dioxide gas source heat pump system is adopted to simultaneously generate cooling and heating energies which are used for the purification device. Besides, the technique has the advantages of low manufacturing cost, simple structure and high practicality, and is suitable for popularization and application in related technical fields.
Description
Technical field
The invention belongs to methane purification and produce vehicle fuel technical field, specifically the cold-heat combined technology of a kind of biogas membrane sepn purifying carbon dioxide air supply heat pump.
Background technology
The features such as membrane sepn methane purification technology is high with separation efficiency, energy consumption is low, equipment is simple, Technological adaptability is strong are being applied widely in recent years.In membrane sepn methane purification technology, needing the gas to entering film group to carry out pre-treatment, comprising and coldly dryly dewatering, filter and heat.Dewater and general adopt cold dryly to dewater, reach the dewpoint requirements of Sweet natural gas.Needed again to heat to biogas the optimal temperature reaching membrane sepn before entering film group.Need to use the cold and hot energy simultaneously.
Summary of the invention
The object of the invention is to solve deficiency of the prior art, provide a kind of biogas membrane sepn purifying carbon dioxide air supply heat pump cold-heat combined technology.
The present invention includes water containing Marsh gas compression equipment, membrane sepn methane equipment for purifying, air supply heat pump equipment, central control equipment, biogas after pretreatment enters water containing Marsh gas compression equipment, biogas after compression cools through aftercooler, strainer is entered after entering carbon dioxide air source heat-pump apparatus cooling de-watering, then the hot water heating produced through carbon dioxide air source heat-pump apparatus is extremely applicable to temperature, enters membrane separation unit.
Preferably, described well heater is divided into primary heater and secondary heater.
Preferably, described water is compressor containing Marsh gas compression equipment.
The present invention also comprises evaporator with heat pump, and the cold that described evaporator with heat pump produces, by the biogas cooling after compression, makes elutriation wherein go out, improves the dew point of product Sweet natural gas.
Preferably, the heat produced through heat pump has two kinds of modes to heat film group, and after water heats by the first heat being heat pump produces, hot water and the biogas before entering film group carry out heat exchange.The second be adopt the carbonic acid gas working medium of heat pump directly and biogas carry out heat exchange.
Marsh gas purifying is purified by the present invention, makes purified gas reach the standard of natural gas used for automobile.The present invention adopts carbon dioxide gas source heat pump system, can produce cooling and the energy heated simultaneously, is that equipment for purifying uses.In addition, manufacturing cost of the present invention is not high, and structure is simple, and practical, the present invention is adapted at correlative technology field and applies.
Accompanying drawing explanation
Fig. 1 is that the present invention adopts hot water heating apparatus's schema;
Fig. 2 is that the present invention adopts carbonic acid gas working medium heating installation schema;
Fig. 3 is carbon dioxide heat-pump schema of the present invention.
Embodiment
Below with reference to accompanying drawings the present invention is described in more detail, which show the preferred embodiments of the present invention, should be appreciated that those skilled in the art can revise the present invention described here and still realize advantageous effects of the present invention.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as limitation of the present invention.
In order to clear, whole features of practical embodiments are not described.They in the following description, are not described in detail known function and structure, because can make the present invention chaotic due to unnecessary details.Will be understood that in the exploitation of any practical embodiments, a large amount of implementation detail must be made to realize the specific objective of developer, such as, according to regarding system or the restriction about business, change into another embodiment by an embodiment.In addition, will be understood that this development may be complicated and time-consuming, but be only routine work to those skilled in the art.
For making object of the present invention, feature becomes apparent, and is further described the specific embodiment of the present invention below in conjunction with accompanying drawing.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.
As shown in Figure 1, the present invention comprises compressor 101, carbon dioxide heat-pump equipment 102, strainer 103, primary heater 104, strainer 105, one-level film group 106, secondary heater 107, intermembranous strainer 108, secondary membrane group 109, interchanger 110.
Biogas after pretreatment enters compressor 101, biogas after compression, after vaporizer 304 cooling de-watering of carbon dioxide heat-pump equipment 102, enters strainer 103, is then heated to optimal temperature by primary heater 104, one-level, again after strainer 105, enters one-level film group 106.Be heated to the temperature be suitable for by secondary heater 107, after intermembranous strainer 108 filters again, enter secondary membrane group 109 and be separated, obtain natural gas used for automobile.
Wherein, the heat of primary heater 104, secondary heater 107 is from the condenser 302 of CO2 heat pump 301 and interchanger 110 and water heat exchange.
As shown in Figure 2, compressor 201 of the present invention, carbon dioxide heat-pump equipment 202, strainer 203, primary heater 204, strainer 205, one-level film group 206, secondary heater 207, intermembranous strainer 208, secondary membrane group 209.Biogas after pretreatment enters compressor 201, biogas after compression, after the evaporator cools of carbon dioxide heat-pump equipment 202 dewaters, enters strainer 203, is then heated to optimal temperature by primary heater 204, one-level, again after strainer 205, enters one-level film group 206.Be heated to the temperature be suitable for by secondary heater 207, after intermembranous strainer 208 filters again, enter secondary membrane group 209 and be separated, obtain natural gas used for automobile.Namely primary heater 204, secondary heater 207 are equivalent to the condenser of CO2 heat pump, and its heat carries out heat exchange from carbonic acid gas working medium and biogas.
As shown in Figure 3, carbon dioxide air source heat pump of the present invention take carbonic acid gas as working medium, and after carbon dioxide compressor 301 compresses, the carbonic acid gas of High Temperature High Pressure enters condenser 302 and water or biogas heat exchange, and the biogas before entering film group is heated to optimal temperature.Carbonic acid gas is expanded into the carbonic acid gas of low-temp low-pressure through expansion valve 303, and the biogas after vaporizer 304 with compression carries out heat exchange, and biogas is cooled, removing moisture wherein.This device have employed carbon dioxide gas source heat pump system, achieves a tractor serves several purposes function of heat pump, and the demand of biogas membrane sepn purifying technique to the cold and hot energy obtains and well meet, and is the comprehensive utilization to energy resource system.
Marsh gas purifying is purified by the present invention, makes purified gas reach the standard of natural gas used for automobile.Have employed air supply heat pump system simultaneously, adopt graded temperature-control technique, the cold and hot energy needed for membrane sepn purification system can be provided simultaneously, fully utilize the energy.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the embodiment of the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the embodiment of the present invention, can realize in other embodiments.Therefore, the embodiment of the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
These are only the preferred embodiment of the embodiment of the present invention; not in order to limit the embodiment of the present invention; within all spirit in the embodiment of the present invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the embodiment of the present invention.
Claims (5)
1. the cold-heat combined technology of biogas membrane sepn purifying carbon dioxide air supply heat pump, comprise water containing Marsh gas compression equipment, membrane sepn methane equipment for purifying, air supply heat pump equipment, central control equipment, it is characterized in that biogas after pretreatment enters water containing Marsh gas compression equipment, biogas after compression cools through aftercooler, strainer is entered after entering carbon dioxide air source heat-pump apparatus cooling de-watering, then the hot water heating produced through carbon dioxide air source heat-pump apparatus is extremely applicable to temperature, enters membrane separation unit.
2. the cold-heat combined technology of a kind of biogas membrane sepn purifying carbon dioxide air supply heat pump according to claim 1, is characterized in that described well heater is divided into primary heater and secondary heater.
3. the cold-heat combined technology of a kind of biogas membrane sepn purifying carbon dioxide air supply heat pump according to claim 1, is characterized in that described water is compressor containing Marsh gas compression equipment.
4. the cold-heat combined technology of a kind of biogas membrane sepn purifying carbon dioxide air supply heat pump according to claim 1, characterized by further comprising evaporator with heat pump, the cold that described evaporator with heat pump produces, by the biogas cooling after compression, makes elutriation wherein go out, improves the dew point of product Sweet natural gas.
5. the cold-heat combined technology of a kind of biogas membrane sepn purifying carbon dioxide air supply heat pump according to claim 4, it is characterized in that the heat produced through heat pump has two kinds of modes to heat film group, after water heats by the first heat being heat pump produces, hot water and the biogas before entering film group carry out heat exchange.The second be adopt the carbonic acid gas working medium of heat pump directly and biogas carry out heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410741011.5A CN104560253A (en) | 2014-12-08 | 2014-12-08 | Marsh gas membrane separation purification carbon dioxide gas source heat pump cold/hot coproduction technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410741011.5A CN104560253A (en) | 2014-12-08 | 2014-12-08 | Marsh gas membrane separation purification carbon dioxide gas source heat pump cold/hot coproduction technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104560253A true CN104560253A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410741011.5A Pending CN104560253A (en) | 2014-12-08 | 2014-12-08 | Marsh gas membrane separation purification carbon dioxide gas source heat pump cold/hot coproduction technique |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316055A (en) * | 2015-11-04 | 2016-02-10 | 天津凯德实业有限公司 | Methane membrane separation and purification system adopting carbon dioxide air source heat pump |
| CN114774177A (en) * | 2022-05-19 | 2022-07-22 | 上海林海生态技术股份有限公司 | Decarbonization system for biogas purification |
| CN114806663A (en) * | 2022-05-19 | 2022-07-29 | 上海林海生态技术股份有限公司 | Cooling system for decarbonization system of methane purification device |
| CN114806664A (en) * | 2022-05-19 | 2022-07-29 | 上海林海生态技术股份有限公司 | Cooling method for biogas purification and decarburization system |
| CN114806662A (en) * | 2022-05-19 | 2022-07-29 | 上海林海生态技术股份有限公司 | Cooling system for biogas purification and decarburization system and biogas purification and decarburization system |
| CN114874819A (en) * | 2022-05-19 | 2022-08-09 | 上海林海生态技术股份有限公司 | Decarbonization method for biogas purification |
-
2014
- 2014-12-08 CN CN201410741011.5A patent/CN104560253A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316055A (en) * | 2015-11-04 | 2016-02-10 | 天津凯德实业有限公司 | Methane membrane separation and purification system adopting carbon dioxide air source heat pump |
| CN114774177A (en) * | 2022-05-19 | 2022-07-22 | 上海林海生态技术股份有限公司 | Decarbonization system for biogas purification |
| CN114806663A (en) * | 2022-05-19 | 2022-07-29 | 上海林海生态技术股份有限公司 | Cooling system for decarbonization system of methane purification device |
| CN114806664A (en) * | 2022-05-19 | 2022-07-29 | 上海林海生态技术股份有限公司 | Cooling method for biogas purification and decarburization system |
| CN114806662A (en) * | 2022-05-19 | 2022-07-29 | 上海林海生态技术股份有限公司 | Cooling system for biogas purification and decarburization system and biogas purification and decarburization system |
| CN114874819A (en) * | 2022-05-19 | 2022-08-09 | 上海林海生态技术股份有限公司 | Decarbonization method for biogas purification |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |