Recently developed microporous inor- ganic membranes show both high per- meatinrates and selective items. Thus the separation of H_2 from other gases, CO_2 from N_2, and CO_ from CH_4 is at a stage which is suitable for industrial applica- tions. Hydrocarbons can successfully be separated using inorganic membranes. Future targets of inorganic membrane Development will be durability under Elevated pressures and temperatures, Separation of structurally similar hydro- Carbon molecules, development of hy- Drophobic membranes that are stable in a Brane regeneraiton.
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