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US 4,540,842 AGranted
Removal of sulfur compounds from pentane
AssigneeEl Paso Products Company
InventorGeorge C. Allen
Life of this patent
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Abstract
Pentane derived from fractionation of sulfur-containing natural gasoline is desulfurized to low levels of sulfur, e.g., 1 ppm or below, in a process comprised of contacting the pentane in a first zone with molecular sieve adsorbent to remove dimethylsulfide and then in a second zone with activated carbon to remove carbon disulfide.
Claims8
A process for the removal of carbon disulfide and other sulfur contaminants from pentane which comprises:
- contacting pentane in a first contacting zone with an adsorbent consisting essentially of molecular sieve;
- contacting pentane from said first zone in a second contacting zone with an adsorbent consisting essentially of activated carbon, and recovering pentane product substantially free of carbon disulfide and other sulfur contaminants from said second zone.
Dependencies are inferred from the claim text.