IMPROVED ADSORPTION PROCESS FOR RECOVERING CONDENSABLE COMPONENTS FROM A GAS STREAM

摘要

Disclosed is an improved process for recovering condensable components from a gas stream, in particular, heavier hydrocarbons from a gas stream. The present process uses solid adsorbent media to remove said heavier hydrocarbons wherein the adsorbent media is regenerated in a continuous fashion in a continuous adsorbent media counter-current regeneration system using a stripping gas to provide a regenerated adsorbent media and a product gas comprising heavier hydrocarbons from a loaded adsorbent media. The improvement is the use of a portion of the product gas from the regeneration unit as the stripping gas.

主权项

1. An improved process for separating hydrocarbons from a gas feedstream comprising methane and one or more of ethane, propane, butane, pentane, or heavier hydrocarbons, comprising the steps of:
(a) providing one or more adsorbent bed comprising an adsorbent media, wherein said adsorbent media adsorbs one or more of ethane, propane, butane, pentane, heavier hydrocarbons, and/or mixtures thereof, (b) passing the gas feedstream through the one or more adsorbent bed to provide a methane rich gas stream and a loaded adsorbent media, (c) recovering, transporting, liquefying, or flaring the methane rich gas stream, (d) using a counter-current regeneration process to regenerate the loaded adsorbent media using a stripping gas to produce regenerated adsorbent media and a product gas comprising one or more desorbed ethane, propane, butane, pentane, heavier hydrocarbons, and/or mixtures thereof, (e) recovering, transporting, liquefying, re-injecting, excluding, by-passing, or flaring the one or more desorbed ethane, propane, butane, pentane, and/or heavier hydrocarbons individually and/or as mixtures, and (f) reusing the regenerated adsorbent media,the improvement comprising the use of a stripping gas comprising a portion of the product gas.