Regenerative Adsorption Process for Removal of Silicon-Containing Contaminants from Process Gas Using a Neutral Adsorbent Media

摘要

A natural gas-containing stream such as biogas from landfills and sewage treatment plants is freed of siloxane contaminants by passing the biogas through a bed containing an adsorbent having a neutral surface, which adsorbs the siloxanes. When the bed of neutral adsorbent is filled to capacity, the adsorbent bed is heated to remove the siloxanes and regenerate the bed. The neutral adsorbent reduces disadvantageous reactions between the adsorbent and siloxane and other impurities in the natural gas-containing stream.

主权项

1. A process for removing siloxanes from a natural gas feed comprising:
passing the natural gas feed through an adsorbent bed comprising an adsorbent having a neutral surface to adsorb onto the adsorbent at least a portion of the siloxanes in the natural gas feed; and regenerating the adsorbent by removing the siloxanes adsorbed on the adsorbent.