HISELECT membranes efficiently remove CO2 from natural gas over a wide flow and concentration range. The membranes demonstrate superior selectivity for CO2, irrespective of HHC content and CO2 partial pressure. Additionally, strong resistance to unsaturated hydrocarbons, mechanical robustness and high resistance to hydrogen sulfide (H2S) result in low maintenance effort and a rapid return on investment.
HISELECT membranes can be integrated into hydrogen applications to recover hydrogen (H2) from ammonia synthesis purge gases. These usually consist of methane (CH4), nitrogen (N2), argon (Ar), ammonia (NH3) and hydrogen (H2).
HISELECT membranes can be applied to helium (He) purification, configured as stand-alone systems or hybrid models combining membrane separation with pressure swing absorption (PSA) to recover high-purity He from low-concentration sources such as natural gas.
HISELECT membranes are an important part of the Linde hydrogen value chain. Tailored to customers' needs, the membranes are integrated in systems for the hydrogen extraction from H₂ blended natural gas.