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AirraneBiogas Upgrading Membrane

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Biogas, which has recently been attracting attention as a next-generation eco-friendly fuel, is a clean renewable energy source and is recognized as a resource that can replace natural gas in power generation and vehicle fuels. Biogas is generated from food waste, manure, sewage treatment facilities, and landfills. Biogas is generally composed of 60% methane (CH4) and 40% carbon dioxide (CO2). Biogas can be converted into biomethane with a methane purity over 97% through a gas separation membrane and injected into a gas grid or fueled in CNG vehicles.Recently, the Korean government is promoting the production of hydrogen from biomethane, which is additional business opportunity for gas separation membrane industry. Airrane has already supplied several biogas upgrading facilities using the membrane system to Chungju, Uijeongbu, Paju, and Asan in Korea through collaboration with the government, and is currently participating in many future biogas upgrading projects in major cities.

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Model

Number

Dimension (mm)
Connection (inch)
Weight
L
OD
ID
Feed
Retentate
Permeate
MCH-3032A
856
110
85
1/2"
1/2"
1/2"
6.0kg
MCH-4040A
1080
150
114
1"
1"
1"
15kg
MCH-4160A
1564
160
125
1"
1"
1"
19kg
MCH-6160A
1580
200
157.5
1.5"
1.5"
1.5"
26kg
MCH-8140A
1080
280
220
1.5"
1.5"
2"
44kg
MCH-8160A
1580
280
220
1.5"
1.5"
2"
55kg
  • Does not require frequent replacement of chemical ingredients that causes secondary waste
  • Can operate in wide range of operational pressure
  • Less pressure loss for biogas upgrading
  • Simple operation and low maintenance requirements
  • Flexible operation depending on generated gas amount
  • Possible to install for small-scale operation
  • Compact size only requires minimal space
  • Easy up-scaling
Method
Scrubber
PSA
Membrane

CH4 concentration

95% + 
95% + 
95% +
CH4 recovery
95-98%
90-99%

>95%

Moisture Processing

After Separation
Before Separation
Before Separation 
Secondary pollution and waste
High

High

Low

H2S co-removal

Possible
Not possible
Possible

H2O vapor co-removal

Not possible

Partially possible

Possible

N2 and O2 co-removal

Not possible
Partially possible
Partially possible