Shell Oil Comapny

Star Enterprise

John Robert Powers

Gerald Foley Prescott

Steven Allen Holmes

James Roger Whiteman

Michael Phillip Smith

Robert M Steinberg

Abraham Robert Dekraker

Cycloalkane base oil, methods of making cycloalkane base oil, and dielectric liquid comprising cycloalkane base oil, the cycloalkane base oil comprising a quantity of isoparaffins and from 50 wt. % to 70 wt. % cycloalkanes having the formula CHwherein n is from 15 to 30, said quantity of isoparaffins being less than 50 wt. % of said cycloalkane base oil.

Cycloalkane base oils, cycloalkane-base dielectric liquids made using cycloalkane base oils, and methods of making same

In an integrated lube oil process, a lube oil stock is hydrotreated over a non-noble metal containing hydrotreating catalyst in an HDN/HDS unit to remove sulfur and nitrogen from the lube oil stock and produce an HDN/HDS unit effluent. The effluent comprises hydrodesulfurized, hydrodenitrogenated lube oil stock, hydrogen sulfide and ammonia. The hydrogen sulfide and ammonia are stripped from the hydrodesulfurized, hydrodenitrogenated lube oil stock to form a liquid stream comprising stripped lube oil stock and a first gas stream comprising hydrogen sulfide, ammonia and molecular hydrogen. The stripped lube oil stock is hydrotreated over a noble-metal containing hydrotreating catalyst in an HDW unit to produce an HDW unit effluent comprising a dewaxed lube oil stock. A second gas stream comprising molecular hydrogen is separated from the dewaxed lube oil stock. The first gas stream is combined with the second gas stream to form a third gas stream. The third gas stream is treated to remove ammonia and hydrogen sulfide and form a fourth gas stream comprising primarily molecular hydrogen. The fourth gas stream is compressed to form a fifth gas stream. At least a portion of the fifth gas stream is mixed with the lube oil stock.

Integrated lube oil hydrorefining process

A process for saturating aromatics in a lube range hydrocarbon is disclosed. The process can be used to raise the viscosity index of the lube range products. The process is carried out over a noble metal catalyst under mild process conditions. The catalyst is resistant to sulfur and nitrogen compounds.

Hydrorefining process for production of base oils

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Port Neches, TX, United States of America

John Robert Powers