PRISM Membrane Systems for Hydrogen Recovery and Syngas Ratio Adjustment Allie D. 11 years ago In petrochemical plants, our PRISM membrane systems are used for hydrogen recovery, synthesis gas ratio adjustment, carbon monoxide purification, and hydrogenation. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook More Print (Opens in new window) Print Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email