摘要 |
A pressure swing adsorption process for removal of COfrom natural gas streams through a combination of a selective adsorbent material containing an effective amount of a non-adsorbent filler, adsorbent contactor design, and adsorption cycle design. The removal of contaminants from gas streams, preferably natural gas streams, using rapid-cycle swing adsorption processes, such as rapid-cycle pressure swing adsorption (RC-PSA). Separations at high pressure with high product recovery and/or high product purity are provided through a combination of judicious choices of adsorbent material, gas-solid contactor, system configuration, and cycle designs. For example, cycle designs that include steps of purge and staged blow-down as well as the inclusion of a mesopore filler in the adsorbent material significantly improves product (e.g., methane) recovery. An RC-PSA product with less than 10 ppm HS can be produced from a natural gas feed stream that contains less than 1 mole percent HS. |
申请人 |
EXXONMOBIL UPSTREAM RESEARCH COMPANY |
发明人 |
DECKMAN HARRY, W.;JOHNSON ROBERT, A.;ANDERSON THOMAS, N.;KELLEY BRUCE, T.;RAVIKOVITCH PETER, I. |