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Patent Agency Ranking
公开(公告)号：US3876532A
公开(公告)日：1975-04-08
申请号：US33638273
申请日：1973-02-27
Applicant: GULF RESEARCH DEVELOPMENT CO
Inventor： PLUNDO ROBERT A , READAL THOMAS C , STROM JAMES R
CPC classification number: C10G45/02 , C10G2400/06
Abstract: Middle distillate virgin oils, such as straight run furnace oil, jet fuel or kerosene are required to meet many commercial specifications, among which are maximum allowable total sulfur content, maximum allowable mercaptan sulfur content and maximum allowable total acid number. Middle distillates which do not meet commercial specifications in regard to total sulfur content can be hydrodesulfurized for the removal of the portion of the total sulfur required for meeting the commercial requirement. Such hydrodesulfurization requires more severe conditions than do processes for reduction of total acid number or for reduction of mercaptan sulfur content so that under the severe conditions required for hydrodesulfurization, excessive total acid number and excessive mercaptan content are automatically concomitantly reduced to commerically acceptable levels. The present invention relates to the hydrotreatment of virgin middle distillates which meet commercial specifications in regard to total sulfur content in the absence of prior hydrotreating or any other treatment, but do not meet commercial specifications in regard to total acid number or in regard to mercaptan sulfur content. According to the present invention, the latter middle distillates are not blended with high total sulfur feeds flowing to hydrodesulfurization processes requiring severe conditions to accomplish reduction in total sulfur content, but are hydrotreated separately under relatively more mild catalytic hydrotreating conditions to reduce mercaptan sulfur content or total acid number at hydrotreating severities which are so mild that there is an extremely limited consumption of hydrogen and a very limited removal of total sulfur. The catalyst employed in the mild hydrotreating processes of this invention is a deactivated hydrotreating catalyst from a more severe hydrodesulfurization or other hydrotreating operation which is no longer of viable use in the more severe operation due to numerous cycles of use and regeneration, due to excessive metals deposit thereon, or any other reason.
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公开(公告)号：US3617532A
公开(公告)日：1971-11-02
申请号：US3617532D
申请日：1968-10-23
Applicant: GULF RESEARCH DEVELOPMENT CO
Inventor： PLUNDO ROBERT A , SCHMID BRUCE K
CPC classification number: C10G45/50 , C10G2400/10
Abstract: Hydrotreating catalysts promoted with boria increase the viscosity index and decrease the iodine number of lube oil charge stocks.
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公开(公告)号：US3907667A
公开(公告)日：1975-09-23
申请号：US39036073
申请日：1973-08-22
Applicant: GULF RESEARCH DEVELOPMENT CO
Inventor： MURPHY JR HARRY C , PLUNDO ROBERT A , STAUFFER HARRY C , TAYLOR JR HERMAN , YANIK STEPHEN J
CPC classification number: C10G65/04 , C10G2400/10
Abstract: A multiple stage process is described for the catalytic hydrodesulfurization and hydrodemetallization of a residual petroleum oil boiling above the gasoline range. The product of the process comprises essentially material boiling above the gasoline range and comprises little material boiling below the initial boiling point of the residual oil feed. The hydrodesulfurization-demetallization process comprises an initial stage involving relatively high hydrogen pressure in the presence of a catalyst comprising a relatively low proportion of catalytically active hydrogenation metals. The process employs a final stage in series having a relatively lower hydrogen pressure and a catalyst comprising a relatively higher proportion of hydrogenation metals. The stream entering the final stage contains an amount up to 10, 20 or even 25 weight percent of the asphaltene content of the charge to the first stage while the effluent from the final stage is essentially free of asphaltenes. The final stage effluent is therefore suitable as a residual lubricating oil feedstock without requiring a solvent deasphalting step.
Abstract translation: 描述了沸点高于汽油范围的残余石油的催化加氢脱硫和加氢脱金属的多阶段方法。 该方法的产物基本上在汽油范围之上的材料沸腾，并且包含沸点低于残油进料的初始沸点的少量材料。 加氢脱硫脱金属过程包括在催化剂存在下包含相对较低比例的催化活性氢化金属的相对高的氢气压力的初始阶段。 该方法采用具有相对较低的氢气压力的串联的最终阶段和包含相对较高比例的氢化金属的催化剂。 进入最后阶段的料流含有高达10,20或甚至25重量％的第一阶段装料的沥青质含量，而最终阶段的流出物基本上不含沥青质。 因此，最终阶段流出物适合作为残留的润滑油原料而不需要溶剂脱沥青步骤。
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公开(公告)号：US3870626A
公开(公告)日：1975-03-11
申请号：US33638373
申请日：1973-02-27
Applicant: GULF RESEARCH DEVELOPMENT CO
Inventor： PLUNDO ROBERT A , READAL THOMAS C , STROM JAMES R
Abstract: Middle distillate virgin oils, such as straight run furnace oil, jet fuel or kerosene are required to meet many commercial specifications, among which are maximum allowable total sulfur content, maximum allowable mercaptan sulfur content and maximum allowable total acid number. Middle distillates which do not meet commercial specifications in regard to total sulfur content can be hydrodesulfurized for the removal of the portion of the total sulfur required for meeting the commercial requirement. Such hydrodesulfurization requires more severe conditions than do processes for reduction of total acid number or for reduction of mercaptan sulfur content so that under the severe conditions required for hydrodesulfurization, excessive total acid number and excessive mercaptan content are automatically concomitantly reduced to commercially acceptable levels. The present invention relates to the hydrotreatment of virgin middle distillates which meet commercial specifications in regard to total sulfur content in the absence of prior hydrotreating or any other treatment, but do not meet commercial specifications in regard to total acid number or in regard to mercaptan sulfur content. According to the present invention, the latter middle distillates are not blended with high total sulfur feeds flowing to hydrodesulfurization processes requiring severe conditions to accomplish reduction in total sulfur content, but are hydrotreated separately under relatively more mild catalytic hydrotreating conditions to reduce mercaptan sulfur content or total acid number at hydrotreating severities which are so mild that there is an extremely limited consumption of hydrogen and a very limited removal of total sulfur. The catalyst employed in the mild hydrotreating processes of this invention is a deactivated hydrotreating catalyst from a more severe hydrodesulfurization or other hydrotreating operation which is no longer of viable use in the more severe operation due to numerous cycles of use and regeneration, due to excessive metals deposit thereon, or any other reason.
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公开(公告)号：US3637503A
公开(公告)日：1972-01-25
申请号：US3637503D
申请日：1969-07-28
Applicant: GULF RESEARCH DEVELOPMENT CO
Inventor： GIANNETTI JOSEPH P , PLUNDO ROBERT A
IPC: C10M143/08 , C10M1/16
CPC classification number: C10M143/08 , C10M143/00 , C10M2205/00 , C10M2205/02 , C10M2205/026 , C10M2205/028 , C10M2209/084 , C10N2220/02
Abstract: A lubricating oil composition having good shear stability is obtained by blending together a mineral lubricating oil and a viscosity index improving amount of a polymer of a normal alpha olefin having from four to 16 carbon atoms per molecule. The polymer is obtained by polymerizing the alpha olefin or alpha olefin mixture in the liquid phase in the presence of aluminum chloride and a nonpolymerizing hydrocarbon diluent at a temperature between about -40* and +70* F. for a time sufficient to produce a polymer having a viscosity of about 40 to about 3000 centistokes at 210* F. The alpha olefin is introduced into the polymerization system at a rate of about 0.6 to about 60 moles of olefin per mole of aluminum chloride per hour. The addition of the olefin is continued until 2 to 200 moles of olefin per mole of aluminum chloride has been added.
Abstract translation: 具有良好剪切稳定性的润滑油组合物通过将矿物润滑油和每分子具有4至16个碳原子的正常α-烯烃的聚合物的粘度指数改进量混合在一起而获得。 聚合物是通过在氯化铝和非聚合性烃稀释剂存在下，在-40℃至+70℃之间的温度下使液相中的α-烯烃或α-烯烃混合物聚合得到的，所述时间足以产生聚合物 在210°F时具有约40至约3000厘沲的粘度。将α-烯烃以每小时每摩尔氯化铝约0.6至约60摩尔烯烃的速率引入聚合体系。 继续加入烯烃直至加入每摩尔氯化铝2至200摩尔烯烃。
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