Exxonmobil Chemical Patents Inc.

Michael J Clemmons

Teng Xu

Kapil Kandel

David T Ferrughelli

John Slocum Coleman

James Harding Beech, Jr

Glenn Allen Heeter

Giovanni S Contello

Jesse R McManus

Processes for preparing a low particulate liquid hydrocarbon product are provided and includes blending a tar stream containing particles with a fluid to produce a fluid-feed mixture containing tar, the particles, and the fluid, and centrifuging the fluid-feed mixture at a temperature of greater than 60&#xb0; C. to produce a higher density portion and a lower density portion, where the lower density portion contains no more than 25 wt % of the particles in the fluid-feed mixture.

Temperature control for centrifugation of steam cracked tar

A process id disclosed for upgrading tars, typically those resulting from hydrocarbon refining processes, to products suitable for other uses, such as blending with other hydrocarbons to provide low-sulfur fuel oils or Emission Control Area-acceptable fuels. A low-sulfur hydrocarbon product obtained from the process is also disclosed.

Pyrolysis tar upgrading

Methods for upgrading a hydrocarbon feed are disclosed. The methods include a hydrocarbon feed having an insolubility number, I, with at least a first fluid to form a fluid-feed mixture; and inducing a centrifugal force to the fluid-feed mixture sufficient to form at least a higher density portion and a lower density portion, said lower density portion having an insolubility number, I, wherein I/I&#x2266;0.95. Methods and apparatus for hydroprocessing the treated feed and blending with a fuel oil blend-stock are also described.

Method and apparatus for improving a hydrocarbon feed

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Mont Belvieu, TX, United States of America

Michael J Clemmons