PATENT CLAIMS |
(a) Passing gaseous mixt comprising 2-8C olefin & 2-8C acetylenic impurity through particulate bed of adsorbent comprising support material having high surface area on which is dispersed metal selected from Cr, Fe, Co, Ni, Ru, Pd & Pt to effect in presence of H2-free atm within the bed selective & reversible adsorption of acetylenic contaminants & thereby obtain purified effluent contg < 1 ppm by vol. of said impurities (b) Regenerating resulting bed of adsorbent in presence of H2 reducing gas to effect release of contained acetylenic impurities from adsorbent
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