Novel centrifugal process removes gas contaminants

A new technique based on centrifugal separation can economically process gas from fields contaminated with large amounts of carbon dioxide (CO2) or hydrogen sulfide (H2S).The process could help mitigate expected shortages in global natural gas supply during the next few decades in an environmentally responsible manner. Current energy-intensive methods often cannot economically remove CO2 or H2S in existing or newly discovered gas fields if the gas contains more than 15% CO2 or H2S.Selective absorption in an aqueous solution is the standard technique for removing these gaseous contaminants from methane.1 High contamination levels, however, require unacceptable levels of energy consumption ...

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