CN206736194U - A kind of methane purification system - Google Patents

A kind of methane purification system Download PDF

Info

Publication number
CN206736194U
CN206736194U CN201720192946.1U CN201720192946U CN206736194U CN 206736194 U CN206736194 U CN 206736194U CN 201720192946 U CN201720192946 U CN 201720192946U CN 206736194 U CN206736194 U CN 206736194U
Authority
CN
China
Prior art keywords
filter
level
compressor
pump
carbon dioxide
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
Application number
CN201720192946.1U
Other languages
Chinese (zh)
Inventor
吴帆
吴一帆
王子悦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Huiyuan Ecological Technology Co Ltd
Original Assignee
Beijing Huiyuan Ecological Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Huiyuan Ecological Technology Co Ltd filed Critical Beijing Huiyuan Ecological Technology Co Ltd
Priority to CN201720192946.1U priority Critical patent/CN206736194U/en
Application granted granted Critical
Publication of CN206736194U publication Critical patent/CN206736194U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

A kind of methane purification system is the utility model is related to, it includes:The roots blower being sequentially connected, grade one filter, surge tank, force (forcing) pump, water scrubber, moisture trap, desulfurizer, spark arrester, decarbonization device, dehydrohalogenation device, denitrogenation oxygen device, stage compressor, freezing type drier, secondary filter, split-compressor, carbon dioxide heat-pump, tertiary filter, primary heater, level Four filter, one-level film group, secondary heater, Pyatyi filter, secondary membrane group, natural gas storage tank, CNG compressors, caisson;The outlet of the entrance and anaerobic reaction-pot of the roots blower connects;The caisson is connected with filling machine and/or aerating post.System of the present utility model realizes carries out purification processing with relatively low investment and operating cost, better simply control to biogas, the output gas after processing is met the requirement of vehicle fuel standard.

Description

A kind of methane purification system
Technical field
The utility model belongs to field of renewable energy resource utilization, particularly a kind of natural pond by methane purification to natural gas used for automobile Gas purification system.
Background technology
At present, at home and abroad have than broader application using Anaerobic Digestion technical finesse organic garbage of city, Particularly in Europe, larger development is obtained with the method processing organic waste of anaerobic digestion, in Japan and South Korea, anaerobic digestion Processing kitchen garbage has also obtained faster development.Organic garbage of city produces biogas by anaerobic digestion, obtains reproducible The energy, realize the recycling of debirs.
The main component of biogas is methane (50%~70%) and carbon dioxide (25~45%), and remaining is a small amount of nitrogen Gas, hydrogen sulfide, ammonia, VOCs and vapor, the vehicular compressed natural of national standard can be met after purified purification Gas (GB18047-2000), alternative conventional gas is as vehicle-mounted natural gas motorcar, however, the domestic biogas heat in China at present Value and purity are low, and Purification is not yet carried out on a large scale, and biogas only uses as rural area kitchen range fuel, and purposes is few, use value Low, even if there is methane purification, also simply simple purifying plant, the biogas after purification are difficult to meet national standard.
The content of the invention
Technology of the present utility model solves problem:Overcome the deficiencies in the prior art, propose a kind of methane purification to automobile-used The methane purification system of natural gas.
Technical solution of the present utility model is:A kind of methane purification system, including:The roots blower being sequentially connected, Grade one filter, surge tank, force (forcing) pump, water scrubber, moisture trap, desulfurizer, spark arrester, decarbonization device, dehydrohalogenation Device, denitrogenation oxygen device, stage compressor, freezing type drier, secondary filter, split-compressor, carbon dioxide heat-pump, three Level filter, primary heater, level Four filter, one-level film group, secondary heater, Pyatyi filter, secondary membrane group, natural gas Storage tank, CNG compressors, caisson;The outlet of the entrance and anaerobic reaction-pot of the roots blower connects;The caisson It is connected with filling machine and/or aerating post.
Further, the carbon dioxide heat-pump includes the carbon-dioxide gas compressor that circulation is sequentially connected, condenser, expansion Valve and regenerator.
Further, described system includes heat exchanger, and carbon dioxide working medium and the one-level of the carbon dioxide heat-pump add The cooling backwater of hot device and secondary heater is exchanged heat by the heat exchanger.
Further, the grade one filter is particulate filter, and the secondary filter is coalescing filter, described Tertiary filter is water absorbing filter, and the level Four filter and Pyatyi filter are oil water separation filtering.
Further, the stage compressor and split-compressor are Marsh gas compression machine.
Further, the one-level film group and secondary membrane group are CH4/CO2Seperation film.
Further, it is provided with odorization machine on the pipeline between the CNG compressors and caisson.
Further, the system includes the first CO2Air accumulator and the 2nd CO2Air accumulator, the CH of the one-level film group4Ooze Appear mouth and CO2Infiltration exports the entrance and the first CO with secondary heater respectively2Air accumulator entrance connects, the secondary membrane group CH4Infiltration outlet and CO2Infiltration exports the entrance and the 2nd CO with natural gas storage tank respectively2Air accumulator entrance connects.
The utility model compared with prior art the advantages of be:
Pass through the desulfurizer that sets in systems, moisture trap, Marsh gas compression machine, cooling driers, one-level film group, two level The devices such as film group, Marsh gas compression machine coordinate to be handled biogas successively, ensure that the height in the gas of final output after handling Position calorific capacity, total sulfur, H2S、CO2、O2, the index such as water dew point reach the standard of vehicle fuel.Realize with relatively low investment and fortune Row cost, better simply control carry out purification processing to biogas, the output gas after processing is met vehicle fuel mark Alignment request.
Brief description of the drawings
Fig. 1 is the schematic diagram of methane purification system of the present utility model.
Fig. 2 is the schematic diagram of the carbon dioxide heat-pump of methane purification system of the present utility model.
Embodiment
As shown in Figure 1-2, a kind of methane purification system, including:The roots blower being sequentially connected, particulate filter, buffering Tank, force (forcing) pump, water scrubber, moisture trap, desulfurizer, spark arrester, decarbonization device, dehydrohalogenation device, denitrogenation oxygen device, Stage compressor, freezing type drier, coalescing filter, split-compressor, carbon dioxide heat-pump, water absorbing filter, one-level Heater, level Four filter, one-level film group, secondary heater, Pyatyi filter, secondary membrane group, natural gas storage tank, CNG compressions Machine, caisson;The outlet of the entrance and anaerobic reaction-pot of the roots blower connects;The caisson and filling machine and/ Or aerating post connection.
Wherein, roots blower:For extracting the biogas of anaerobic reaction-pot out;Particulate filter:For removing in biogas Grain thing;Surge tank:For entering row buffering to biogas;Force (forcing) pump:For the biogas pressurization for exporting surge tank, subsequent purification is completed Technique;Water scrubber:For impurity such as the carbon dioxide in initial absorption biogas, hydrogen sulfide;Moisture trap:For being taken off to biogas Water;Desulfurizer:For further removing the sulfide in biogas;Spark arrester:For preventing and treating the reverse biography of flame in the duct Broadcast;Decarbonization device:For further removing the carbide in biogas;Dehydrohalogenation device:For removing the hydrogen halides in biogas; Denitrogenation oxygen device:For removing the nitrogen oxides in biogas;Stage compressor:For improving gas pressure, subsequent purification is completed Technique;Freezing type drier:For further to gas dewatering;Secondary filter:For carrying out de-oiling, dehydration to gas;Two Level compressor:For improving gas pressure, follow-up purifying technique is completed;Carbon dioxide heat-pump:Go out for cooling down split-compressor The gas of mouth, realize further dehydration;Tertiary filter:Further absorb the moisture in gas;Primary heater:Improve gas Temperature and pressure, in case follow-up de-oiling process;Level Four filter:De-oiling further is carried out to gas;One-level film group:Further Remove the carbon dioxide in gas;Secondary heater:For improving gas temperature and pressure, in case follow-up further de-oiling work Sequence;Pyatyi filter:Realize the de-oiling to gas;Secondary membrane group:Realize the removal of carbon dioxide in gas;Natural gas storage tank: Natural gas after storage purification;CNG compressors:Natural gas is pressurizeed, is easy to store;Caisson;For natural gas Storage.
Preferably, the carbon dioxide heat-pump includes the carbon-dioxide gas compressor that circulation is sequentially connected, condenser, expansion valve And regenerator.
Preferably, the methane purification system includes heat exchanger, the carbon dioxide working medium and one of the carbon dioxide heat-pump The cooling backwater of level heater and secondary heater is exchanged heat by the heat exchanger, by setting heat exchanger, realizes carbon dioxide The carbon dioxide working medium of heat pump and the heat exchange of primary heater and the cooling backwater of secondary heater, take full advantage of two-stage compression The problem of machine exit gas, save the energy.
Preferably, the level Four filter and Pyatyi filter are oil water separation filtering.
Preferably, the stage compressor and split-compressor are Marsh gas compression machine.
Preferably, the one-level film group and secondary membrane group are CH4/CO2Seperation film.
Preferably, it is provided with odorization machine on the pipeline between the CNG compressors and caisson.
Preferably, the methane purification system includes the first CO2Air accumulator and the 2nd CO2Air accumulator, the one-level film group CH4Infiltration outlet and CO2Infiltration exports the entrance and the first CO with secondary heater respectively2Air accumulator entrance connects, the two level The CH of film group4Infiltration outlet and CO2Infiltration exports the entrance and the 2nd CO with natural gas storage tank respectively2Air accumulator entrance connects, and leads to Cross and the first CO is set2Air accumulator and the 2nd CO2, realize CO2Collection, both avoid CO2Air increase greenhouse effects are discharged into, Gas sampling recycling is realized again.
Preferably, filling machine and/or aerating post are connected after the caisson, so as to realizing to natural gas commerial vehicle Aerating and/or be CNG tank car gas injections.
When handling purifying biogas using methane purification system of the present utility model, biogas is by roots blower from anaerobic reaction-pot After middle extraction, surge tank buffering is entered after particulate filter filters particulate matter, biogas passes through force (forcing) pump from surge tank outlet Pass through water scrubber, moisture trap, desulfurizer, spark arrester, decarbonization device, dehydrohalogenation device, denitrogenation oxygen after pressurization successively Device realizes the removal of the impurity such as carbide, sulfide, hydrogen halides;The gas for removing related impurities passes sequentially through one stage of compression Machine, freezing type drier, secondary filter, split-compressor, carbon dioxide heat-pump, tertiary filter, primary heater, level Four Filter, one-level film group, secondary heater, Pyatyi filter, secondary membrane group enter naturally after realizing dehydration and carbon dioxide removal Gas storage tank, the natural gas of natural gas storage tank outlet is by CNG compressors high pressure compressed and by entering after odorization machine injection foul smell Caisson is for the aerating of natural gas commerial vehicle and/or is CNG tank car gas injections.
In the process, the carbon dioxide that one-level film group and secondary membrane group separate out, which enters in carbon dioxide air accumulator, to be stored.
The workflow of the carbon dioxide heat-pump of methane purification system of the present utility model is as follows:Through carbon-dioxide gas compressor HTHP carbon dioxide after compression forms cryogenic high pressure carbon dioxide after entering condenser heat exchange;The cryogenic high pressure dioxy Change carbon and form low-temp low-pressure carbon dioxide by the expansion valve, the low-temp low-pressure carbon dioxide exchanges heat into regenerator, shape Into high-temperature low-pressure carbon dioxide, the high-temperature low-pressure carbon dioxide enters carbon-dioxide gas compressor, forms HTHP titanium dioxide Carbon, the gas of split-compressor outlet realize cooling by the regenerator of carbon dioxide heat-pump with low-temperature carbon dioxide heat exchange, with Just the precipitation of aqueous water, the condenser connect with the heat exchanger, realize low temperature high temperature carbon dioxide and primary heater and The cooling backwater heat exchange of secondary heater.
The content not being described in detail in the utility model specification belongs to the known technology of professional and technical personnel in the field.

Claims (8)

  1. A kind of 1. methane purification system, it is characterised in that including:The roots blower being sequentially connected, grade one filter, surge tank, Force (forcing) pump, water scrubber, moisture trap, desulfurizer, spark arrester, decarbonization device, dehydrohalogenation device, denitrogenation oxygen device, one Level compressor, freezing type drier, secondary filter, split-compressor, carbon dioxide heat-pump, tertiary filter, one-level heating Device, level Four filter, one-level film group, secondary heater, Pyatyi filter, secondary membrane group, natural gas storage tank, CNG compressors, storage Device of air;The outlet of the entrance and anaerobic reaction-pot of the roots blower connects;The caisson and filling machine and/or aerating Post connects.
  2. 2. system according to claim 1, it is characterised in that:The carbon dioxide heat-pump includes two that circulation is sequentially connected Carbonoxide compressor, condenser, expansion valve and regenerator.
  3. 3. system according to claim 1, it is characterised in that:Including heat exchanger, the titanium dioxide of the carbon dioxide heat-pump Carbon working medium is exchanged heat with the cooling backwater of primary heater and secondary heater by the heat exchanger.
  4. 4. system according to claim 1, it is characterised in that:The grade one filter is particulate filter, the two level Filter is coalescing filter, and the tertiary filter is water absorbing filter, and the level Four filter and Pyatyi filter are equal For oil water separation filtering.
  5. 5. system according to claim 1, it is characterised in that:The stage compressor and split-compressor are biogas pressure Contracting machine.
  6. 6. system according to claim 1, it is characterised in that:The one-level film group and secondary membrane group are CH4/CO2Separation Film.
  7. 7. system according to claim 1, it is characterised in that:On pipeline between the CNG compressors and caisson It is provided with odorization machine.
  8. 8. system according to claim 6, it is characterised in that:Including the first CO2Air accumulator and the 2nd CO2Air accumulator, it is described The CH of one-level film group4Infiltration outlet and CO2Infiltration exports the entrance and the first CO with secondary heater respectively2Air accumulator entrance connects It is logical, the CH of the secondary membrane group4Infiltration outlet and CO2Infiltration exports the entrance and the 2nd CO with natural gas storage tank respectively2Air accumulator Entrance connects.
CN201720192946.1U 2017-03-01 2017-03-01 A kind of methane purification system Active CN206736194U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720192946.1U CN206736194U (en) 2017-03-01 2017-03-01 A kind of methane purification system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720192946.1U CN206736194U (en) 2017-03-01 2017-03-01 A kind of methane purification system

Publications (1)

Publication Number Publication Date
CN206736194U true CN206736194U (en) 2017-12-12

Family

ID=60557090

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720192946.1U Active CN206736194U (en) 2017-03-01 2017-03-01 A kind of methane purification system

Country Status (1)

Country Link
CN (1) CN206736194U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108676700A (en) * 2018-07-12 2018-10-19 甘肃驰奈生物能源系统有限公司 A kind of form anaerobic fermentation methane dewatering
CN108753389A (en) * 2018-07-23 2018-11-06 安徽金种子酒业股份有限公司 A kind of biogas purification method
CN111961509A (en) * 2020-08-18 2020-11-20 北京中持绿色能源环境技术有限公司 Biogas membrane purification system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108676700A (en) * 2018-07-12 2018-10-19 甘肃驰奈生物能源系统有限公司 A kind of form anaerobic fermentation methane dewatering
CN108753389A (en) * 2018-07-23 2018-11-06 安徽金种子酒业股份有限公司 A kind of biogas purification method
CN111961509A (en) * 2020-08-18 2020-11-20 北京中持绿色能源环境技术有限公司 Biogas membrane purification system and method

Similar Documents

Publication Publication Date Title
CN206736194U (en) A kind of methane purification system
CN203820739U (en) Biogas treatment system
CN106281476A (en) A kind of low temperature washing device for methanol and a kind of remove the method for sour gas in synthesis gas
CN201168557Y (en) Flue gas processing system
CN101724479B (en) Method for pressure swing adsorption and concentration of methane
CN101792139A (en) Method for recovering CO2
CN203170167U (en) Flue gas purification and desulfurization system
CN103157346B (en) Low-temperature rectisol and CO 2trapping coupling process and system
CN103396853A (en) Technology for preparing natural gas by purifying biogas
CN102321525A (en) Production equipment and production method of compressed biological natural gas for vehicle
CN203429147U (en) Methane purifying system
CN101822929B (en) Method for capturing carbon dioxide by utilizing electrical desorption technology
CN208279582U (en) A kind of system of preparing liquefied natural gas from coke oven gas and hydrogen
CN203333608U (en) Marsh gas purification system
CN103432861B (en) Sintering desulfurization and white smoke removal system and technological process of sintering desulfurization and white smoke removal system
CN204779511U (en) Marsh gas desulfurization removes carbon purification natural gas system
CN104909456A (en) Landfill leachate anaerobic biogas purification method
CN102321676A (en) Biogas engineering two gas one fertile complex method
CN205127735U (en) Gaseous phase demercuration device based on chemisorption
CN208829616U (en) Remove the process system of carbon dioxide in natural
CN200955752Y (en) Apparatus for producing inert gas by thermal fluegas recovery
CN206721196U (en) A kind of organic garbage of city processing system
CN110787594A (en) CO in flue gas2Method and system for capturing and utilizing coupled LNG decompression cycle
CN105561742A (en) Carbon dioxide capture system assisted by combination of solar energy and geothermal energy
CN206889109U (en) A kind of calcium base decarburization integrated system based on Combined cycle gas-steam turbine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant