Process for separating olefins from saturated hydrocarbons
Abstract
Abstract AN IMPROVED PROCESS FOR SEPARATING OLEFINIC HYDROCARBONS IN HIGH PURITY FROM A FEED STREAM CONTAINING AMIXTURE OF OLEFINIC AND PARAFFINIC TYPE HYDROCARBONS ALONG WITH CONTAMINANTS INCLUDING AROMATIC AND NON-NORMAL TYPE HYDROCARBONS. THE GENERAL PROCESS OPERATIONS INCLUDE A CONTACTING OPERATION WHEREIN AN OLEFINIC HYDROCARBON IS PREFERENTIALLY ADSORBED BY A SELECTIVE ADSORBET IN AN ADSORPTION ZONE AND SUBSEQUENTLY CONTACTED WITH A DESORBENT MATERIAL IN A DESORPTION ZONE TO EFFECT THE REMOVAL OF PREFERENTIALLY ADSORBED OLEFNS FROM THE ADSORBENT. THE IMPROVEMENT RESIDES IN EFFECTING THE REMOVAL OF PRODUCT OLEFINS FROM THE ADSORBENT PRIOR TO CONTACTING THE ADSORBENT IN THE DESORPTION ZONE WITH AN INCREASED CONCENTRATION OF DESORBENT TO EFFECT A SECOND DESORPTION OF THE MORE TENACIOUSLY HELD CONTAMINANT HYDROCARONS. THE IMPROVEMENT ALLOWS THE PROCESS TO RID THE ADSORBENT OF CONTAMINANTS (AROMATIC AND NON-NORMAL HYDROCARBONS) PRESENT ON THE ADSORBENT WHEN ATTEMPTING TO SEPARATE OLEFINIC HYDROCARBONS. THIS RESULTS IN INCREASED ADSORBENT CAPACITY FOR OLEFINIC HYDROCARBONS ANDIMPROVED OLEFINIC EXTRACT PURITY RELATIVE TO CONTAMINANTS.
Inventors
- 👤 J Pharis
- 👤 F Adams
Bibliographic Details
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