Mobil Oil Corporation

Richard J Quann

Nai Y Chen

Stephen S Wong

Rene B LaPierre

Tai-Sheng Chou

Clinton R Kennedy

Grant G Karsner

Melcon G Melconian

Samuel A Tabak

Philip Jay Angevine

Larry Arthur Green

David A Pappal

Peter J Owens

Anna B Gorshteyn

Jolie A Rhinehart

Yuk Mui Louie

A method is provided for removing sulfur from an effluent produced by hydrotreating a hydrocarbon feed, said effluent having a heavy fraction containing polyaromatic sulfur compounds and a lighter fraction, said method comprising contacting the effluent with a noble metal containing hydrodearomatization catalyst on a support under super-atmospheric hydrogen pressure and reaction conditions sufficient to hydrogenate at least one ring of said polyaromatic sulfur compounds and thereby produce a product with a reduced sulfur content.

Process for removing sulfur from a hydrocarbon feed

Nitrogenous compounds especially bases such as ammonia vapor are used to control the operation of a hydrocracker or catalytic dewaxer. Catalyst activity and selectivity may be controlled by addition of the base to the feed, for example, to control the balance between isomerization and hydrocracking in an operation using a zeolite beta catalyst. Runaway conditions may be controlled by the addition of nitrogenous compounds to regulate the temperature profile within the reactor.

Method for controlling hydrocracking and isomerization dewaxing operations

Method for controlling hydrocracking and isomerization dewaxing

Nitrogenous compounds especially bases such as amines are used to control the operation of a hydrocracker. Catalyst activity and selectivity may be controlled by addition of the base to the feed, for example, to control the balance between isomerization and conversion in an operation using a zeolite beta catalyst. Runaway conditions may be controlled by the addition of nitrogenous compounds and if they are added at intermediate points along the length of the reactor, the temperature profile within the reactor can be effectively regulated.

Method for controlling hydrocracking operations

A process for removing oxygenated impurities from a hydrocarbon stream includes extracting said oxygenates by a heavy organic polar solvent, water scrubbing the extracted hydrocarbon to recover dissolved solvent and combining the solvent phase from the extractor and the water phase from the scrubber and distilling to recover the solvent.

Process for removing oxygenated compounds or other impurities from

A process for preparing alpha-olefins is provided which comprises:

Process for preparing alpha-olefins from light olefins

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Morrestown, NJ, United States of America

Richard J Quann