Machinery and apparatus for filtering or purifying gases

Description

In Denmark, the amount of biogas on the distribution grids increases. When bio natural gas (biomethane) from distribution grids is fed into the transmission grid, the concentration of odorant present in the gas needs to be reduced to trace amounts before the gas enters the transmission grid. The removal of the odorant, tetrahydrothiophene (THT), will be executed by a deodorization unit, at the place of injection into the transmission system. The tendered assignment is the supply and installation of one deodorization system for THT removal from bio natural gas at existing compressor station St. Andst. Energinet intends to purchase one deodorization units with service agreements for the compressor station St. Andst. General specification for the deodorization units: — St. Andst: pressure 40 barg, capacity 10 000 Nm3/h and volume 35 million Nm3/year.