Patent ID: 9051228
Filing Date: 2015-06-09
Classification: B01D,C07C,C10L,Y02C

Abstract:
1. A process for treating a natural gas feed stream containing a contaminant comprising: a) passing said natural gas feed stream to a membrane unit to remove at least a portion of said contaminant from said natural gas feed stream as a permeate, and yield a partially purified natural gas stream as retenate; b) passing said partially purified natural gas retenate stream to a temperature swing adsorption unit containing an adsorbent to remove a further amount of said contaminant and produce a purified natural gas stream, having less contaminant than said retenate and; c) regenerating said temperature swing adsorption unit to desorb said contaminant from said adsorbent within said temperature swing adsorption unit by heating said permeate and using said heated permeate stream to heat said adsorbent.