公开(公告)号：US3726792A

公开(公告)日：1973-04-10

申请号：US3726792D

申请日：1971-09-20

Applicant: TEXACO INC

Inventor： FRANCIS J ,  LEWIS R ,  TRAMMELL L ,  VACHUDA G

IPC: C10G25/03 ,  C10G25/04

CPC classification number: C10G25/03

Abstract: A method for separating C8 - C24 carbon number range straight chain hydrocarbons from hydrocarbon mixture employing a molecular sieve selective adsorption process comprising an adsorption cycle and a desorption cycle operated in the vapor phase at an elevated temperature and super-atmospheric pressure wherein a vaporized desorbent hydrocarbon is employed in the desorption cycle. Also a method for treating a selective adsorbent effluent to recover desorbent hydrocarbon for recycle to the selective adsorption process.

Abstract translation: 一种使用分子筛选择性吸附方法从碳氢化合物混合物中分离C8-C24碳数范围的直链烃的方法，所述分子筛选择性吸附方法包括在升高的温度和超大气压下在气相中操作的吸附循环和解吸循环，其中蒸发的解吸烃 被用于解吸周期。 还有一种用于处理选择性吸附剂流出物以回收解吸烃以再循环到选择性吸附过程的方法。

公开(公告)号：US3773917A

公开(公告)日：1973-11-20

申请号：US3773917D

申请日：1971-11-10

Applicant: TEXACO INC

Inventor： LEWIS R ,  LEWIS C ,  GOLDSBY A

IPC: C01B17/58 ,  C01B17/72

CPC classification number: C01B17/58

Abstract: IMPROVED METHOD FOR RECOVERING SULFURIC ACID FROM USED SULFURIC ACID CONTAINING WATER AND HYDROCARBON WHEREBY USED ALKYLATION ACID IS BLENDED WITH SPENT ACID OF RELATIVELY HIGH HYDROCARBON CONTENT OBTAINED BY REACTING USED ALKYLATION ACID WITH AN ALIPHATIC OLEFIN TO FORM DIALKYL SULFATE WHICH IS EXTRACTED FROM THE SPENT ACID WITH ISOBUTANE. THE BLEND OF THE TWO ACIDS IS BURNED IN A SLUDGE CONVERSION PROCESS AND THE SULFUR VALUES RECOVERED AS STRONG SULFURIC ACID.