Biogas Upgrading System

Product Details
Customization: Available
CO2 Removal Technology: Dww Decarburization
Transport Package: LCL or FCL
Manufacturer/Factory, Trading Company

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Registered Capital
4000000 RMB
Plant Area
501~1000 square meters
  • Biogas Upgrading System
  • Biogas Upgrading System
  • Biogas Upgrading System
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Basic Info.

Model NO.
ALONG BIOGAS
Trademark
ALONG BIOGAS
Origin
China
HS Code
8486909000
Production Capacity
100 Sets/Year

Product Description

Biogas Upgrading System

After two-stage desulphurization processes, then go through our GasDec system (DWW Pressurized Washing) 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:
Item Quality Index Comments
High thermal value MJ/m3 >31.4 In 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 % ≤3.0
Total Sulfur mg/Nm3 ≤200
H2S mg/Nm3 ≤15
O2 % ≤0.5
Comments: The above data is subject to clients' actual requirements.

The Flowchart of biogas upgrading system:
Biogas Upgrading System


Procedures of our biogas upgrading system:
1,  Gas
Outlet pressure of desulphurization system is about 37 KPa. Water and impurities are removed in the biogas filtration. Then boosted by biogas compressor, the gas goes into absorption tower, flows through the packings in tower from the bottom up, reacts with the absorption solution, which is sprayed down in the tower. The CO2 is absorbed into the liquid while methane would take up most content in the cleaned gas. The product gas is pressurized by CNG compressor at 20 ~ 22 MPa, bottled in the tank lorry for transportation outside.

 
2,  Liquid
The liquid is pressurized by barren-liquor pump, then is sprayed down along the packing layers  in the tower through solution-distributor. Then contacts with biogas, absorbs CO2, the liquid becomes pregnant solution. Then goes into regeneration tower for pressure reduction and stripping for CO2 desorption, after cooled, the solution becomes barren liquor. The cleaned barren liquor is pressurized and delivered to absorption tower for recycling.

The CO2 can be treated for producing food-grade or industrial grade.


Main equipment list of our upgrading system:
Item Product QTY Comments
Equipment
1 Primary Filter 1 set Inclusive SS304 internals
2 Wety desulphurization system 1 set  
3 Dry desulphurization system 1 set  
4 Biogas decarburization system 1 set  
5 Dryer 1 unit TSA
6 Biogas Compressor 2 units With explosion-proof variable frequency motor
7 CNG Compressor 2 units With explosion-proof variable frequency motor
8 Gas Dispenser 2 units  
9 Pipeline, valves, connection fittings,etc 1 batch Subject to design
10 Others 1 batch  
Instruments, controlling systems
1 On-line analyzer (O2) 1 set Feed gas
2 On-line analyzer(CH4/CO2/O2) 1 set Product Gas
3 Flow meter 2 pieces  
4 Liquid level transmitter 2 set  
5 Pressure transmitter 1 batch  
6 Temperature sensor 1 batch  
7 Temperature gauge 1 batch  
8 Pressure gauge 1 batch  
9 Pressure regulation valve bank 2 set  
10 Controlling System 1 set PLC
11 Cables, wires 1 batch  
12 Others 1 batch  

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