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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
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。
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2.发明授权
公开(公告)号：US3753895A
公开(公告)日：1973-08-21
申请号：US3753895D
申请日：1971-04-19
Applicant: TEXACO INC
Inventor： FRANCIS J
CPC classification number: B01D15/08 , Y10S585/952
Abstract: STRAIGNT CHAIN HYDROCARBONS IN THE C13-C24 CARBON NUMBER RANGE ARE SEPARATED FROM A HYDROCARBON MIXTURE BY SELECTIVE ABSORPTION INTO A MOLECULAR SIEVE ABSORBENT IN A VAPOR PHASE ABSORPTION STEP OPERATED AT AN ELEVATED PRESSURE WHEREIN THE NECESSARY OPERATING TEMPERATURE IS MAINTAINED BELOW 700*F. BY ADDING SUFFICIENT LOW BOILING HYDROCARBON TO MAINTAIN THE DEW POINT TEMPERATURE OF THE HYDROCARBON MIXTURE BETWEEN 575*F. AND 650*F. SUBSEQUENTLY, THE STRAIGHT CHAIN HYDROCARBONS ARE RECOVERED BY DESORPTION FROM THE MOLECULAR SIEVE ABSORBENT.
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3.发明授权
公开(公告)号：US3760028A
公开(公告)日：1973-09-18
申请号：US3760028D
申请日：1971-08-05
Applicant: TEXACO INC
Inventor： FRANCIS J
CPC classification number: C07C2/62 , C07C2527/054 , Y02P20/584
Abstract: A multi-stage alkylation for alkylating lower isoparaffins with lower olefins with sulfuric acid catalyst in which the sulfuric acid is transferred serially from one reaction stage to another utilizes sulfuric acid separated from the first stage acid settler to treat the hydrocarbon effluent. The acid from the initial reaction stage separates dialkyl sulfates from the hydrocarbon effluent, and the acid containing dialkyl sulfates is recycled as alkylation catalyst to the alkylation process.
Abstract translation: 用低级烯烃与硫酸催化剂烷基化低级异链烷烃的多级烷基化，其中硫酸从一个反应阶段连续转移到另一个反应阶段利用从第一阶段酸沉降器分离的硫酸来处理烃流出物。 来自初始反应阶段的酸从烃流出物中分离出二烷基硫酸盐，将含有二烷基硫酸的酸作为烷基化催化剂再循环至烷基化方法。
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4.发明授权
公开(公告)号：US3756961A
公开(公告)日：1973-09-04
申请号：US3756961D
申请日：1971-06-02
Applicant: TEXACO INC
IPC: B01D53/04 , B01J20/34 , C07C1/00 , C07C7/13 , C07C9/00 , C07C9/14 , C07C67/00 , C10G25/03 , C10G25/12 , B01J11/04
CPC classification number: B01J20/3408 , C10G25/03
Abstract: A PROCESS FOR REGENERATING A BED OF COKE-CONTAINING CRYSTALLINE ZEOLITIC MOLECULAR SIEVES BY CONTINUOUSLY PASSING A CLOSED-LOOP FLOW OF HOT, OXYGEN-CONTAINING INERT GAS THROUGH THE MOLECULAR SEIVE BED, WHEREIN WATER IN THE CIRCULATING GAS STREAM IS MAINTAINED BELOW A PRESELECTED CONCENTRATION.
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