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Membrane Separation Biogas Decarburization De-Carbon Upgrading/Purification to Natural Gas/CNG System1
Other Equipment ComponentsBiogas UpgradingBiogas Purification
Hunan Along New Energy Technologies Co., Ltd.
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Product Description After two-stage desulphurization processes, then go through our GasDec system (Membrane Separation) for carbon removal, biogas could be upgraded to make CNG, for vehicle or going into national pipeline network.The gas quality after upgrading as below:ItemQuality IndexCommentsHigh thermal valueMJ/m3>31.4In the specific geographical area for vehicle driving, under the highest operation pressure, the water dew point shouldn't be higher than -13 degree.C; When lowest ambient temperature lower than -8 degree.C, the water dew point should be 5 degree.C lower than the lowest temperature.CO2%≤3.0Total Sulfurmg/Nm3≤200H2Smg/Nm3≤15O2%≤0.5Comments: The above data is subject to clients' actual requirements.Procedures of our biogas upgrading system: 1, Primary FilterThe saturated water and partial particles in the raw digester gas are removed through the primary filter;2, Boosting, Primary desulphurizationThe biogas from primary filter is boosted by blower. Then after cooling, the biogas is fed to wet type desulphurization system for primary removal of Hydrogen Sulfide, to make H2S content lower than 200 mg/Nm3; 3, Fine desulphurizationThe content of Hydrogen Sulfide is made lower than 50 mg/Nm3 through dry type desulphurization system; 4, Impurities Removal, Fine Cleaning SystemThe new dust and impurities in biogas could be removed through the Separator; Then delivered to Fine cleaning system for removals of water and tiny particles in order to protect membrane and guarantee its life-time;5. First MS (Membrane Separation)The high quality compressed biogas goes into the first MS system through gas-distributing pipeline. The exhaust gas could be gathered or discharged into atmosphere;6. Secondary MS (Membrane Separation)The gas out of First-MS goes into Secondary MS system for final decarburization. The exhaust gas would totally return to the inlet of biogas compressor. Thiophane is added into the cleaned gas, after CNG compressor, through dispenser, to be delivered to gas station by tank lorry;Main equipment list of our upgrading system:1. Main non-standard equipmentItemEquipment NameSpecificationsQtyComments1Primary Filter 1Unit 2Primary Cooler 1Unit 3Wet Desulphurization Tower 1Unit 4Secondary Filter 1Unit 5Dry Desulphurization Tower 1Unit 6Separator 1Unit 7Pregnant Groove 1Unit 8Regeneration Groove 1Unit 9Barren Liquor Groove 1Unit 10Sulfur Froth Groove 1Unit 11Underground Groove 1Unit 12Fine Cleaning System 1 Set 13First MS Assembly 1 BatchImported14Second MS Assembly 1 BatchImported15Buffer Tank 1 Unit 2. Main Operation Equipment ListItemEquipment NameMaterialQTYComments1Biogas BlowerCase Iron2 UnitsWith back-upAnti-explosion2Desulphurization PumpCase Iron+SS3042 UnitsWith back-upAnti-explosion3Regeneration PumpCase Iron+SS3042 UnitsWith back-upAnti-explosion4Sulfur Froth PumpCase Iron+SS3042 UnitsWith back-upAnti-explosion5Supplement PumpCase Iron+SS3041 UnitAnti-explosion6Biogas CompressorCase Iron1 UnitAnti-explosion, Variable frequency7CNG CompressorCase Iron1 UnitAnti-explosion, Variable frequency8Gas Dispenser 1 UnitSingle line, Double nozzles & measuring9Gas Odorization 1 Unit 3. Instruments & controllingItemProduct NameQTYComments1PLC Controlling Cabinet1 set 2PLC system1 set 3Operator Station2 units 4Complete On-line UPS1 unit 5Flow-meter2 units 6On-line analyzer2 units 7Pressure transmitter1 batch 8Pressure gauge1 batch 9Temperature gauge1 batch 10RTD1 batch 11Alertor1 batch 12Electrical control box1 batch
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