Vent Methane and CO2 Recovery Unit
The patented vent methane and CO2 recovery unit has two sets of Vacuum Swing Adsorption (VSA) process.
One set VSA is meant to handle the tail gas of the membrane unit to recover all the remaining methane and produce CO2 rich gas as product. The CO2 rich gas could be further refined to produce purity for CO2 sequestration, food grade, green house farming or reuse CO2 in concrete production depending on the requirements of the customer.
Another set VSA is meant to handle the tail of the NRU to recover all the remaining methane and produce N2 rich gas as product. The N2 rich gas can be vented to atmosphere as all the methane will be recovered.