Process for separating olefins from saturated hydrocarbons
Abstract
Abstract AN IMPROVED PROCESS FOR SEPARATING OLEFINIC HYDROCARBONS IN HIGH PURITY FROM A FEED STREAM CONTAINING A MIXTURE OF OLEFINIC AND PARAFFINIC HYDROCARBONS ALONG WITH CONTAMINANTS INCLUDING AROMATIC HYDROCARBONS. THE GENERAL PROCESS OPERATIONS INCLUDE A CONTACTING OPERATION WHEREIN AN OLEFINIC HYDROCARBON IS PREFERENTIALLY ADSORBED BY AN ADSROBENT IN AN ADSORPTION ZONE. SUNSEQUENT CONTACTING WITH A DESORBENT MATERIAL IN A DESORPTION ZONE EFFECTS THE REMOVAL OF PREFERENTIALLY ADSORBED OLEFINS FROM THE ADSORBENT. THE IMPROVEMENT RESIDES IN EFFECTING THE REMOVAL OF PRODUCT OLEFINS FROM THE ADSORBENT BY USING A SECOND DESORBENT PRIOR TO CONTACTING THE ADSORBENT WITH A FIRST DESORBENT TO EFFECT A DESORPTION OF THE MORE TENACIOUSLY HELD CONTAMINANT HYDROCARBONS. THE IMPROVEMENT ALLOWS A HIGHER CONCENTRATION OF SECOND DESORBENT TO DESORB OLEFINS WHILE PREVENTING CONTAMINATION OF THE EXTRACT OLEFINS WITH CONTAMINANT MATERIALS.
Inventors
- 👤 J Pharis
- 👤 F Adams
Bibliographic Details
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