公开(公告)号：US3725299A

公开(公告)日：1973-04-03

申请号：US3725299D

申请日：1970-08-06

Applicant: UNION CARBIDE CORP

Inventor： TURNOCK P ,  BANCROFT W ,  LEE M

IPC: C10G25/03 ,  C10G25/05 ,  B01J11/70 ,  B01D41/02

CPC classification number: C10G25/05 ,  C01B33/2807 ,  Y10S502/517

Abstract: The sweetening of natural gasoline liquid fractions employing molecular sieve type adsorbents to selectively adsorb the sulfur compound impurities is accomplished using a minimum of nonsorbable purge gas for regeneration purposes. The process comprises using a low boiling condensable paraffin to purge the sulfur compounds from the principal adsorption bed, condensing said paraffin, purifying same in the liquid phase by passage through a large pore molecular sieve bed, and thereafter removing the sulfur compounds from the latter bed with a non-sorbable purge gas.

Abstract translation: 使用分子筛型吸附剂选择性吸附硫化合物杂质的天然汽油液体馏分的增甜是使用最少的不可吸收的净化气体进行再生的目的。 该方法包括使用低沸点可冷凝石蜡从主要吸附床清除硫化合物，冷凝所述石蜡，通过通过大孔分子筛床在液相中纯化，然后从后一个床除去硫化合物 具有不可吸收的吹扫气体。