Exxonmobil Chemical Patents Inc.

Denise M Burcham

Kapil Kandel

John Slocum Coleman

John Joseph Monson

Kendele S Galvan

Systems and methods are provided for increasing the portion of a pyrolysis tar fraction that can be hydroprocessed by using a physical particle size reduction process on at least a portion of the pyrolysis tar fraction. The physical particle size reduction process can reduce the percentage of particles in the pyrolysis tar fraction that have a particle size of 75 &#x3bc;m or greater, or 50 &#x3bc;m or greater. It has been unexpectedly discovered that at least a portion of the particles having a size of 75 &#x3bc;m or less, or 50 &#x3bc;m or less, can be effectively hydroprocessed to form products of greater value while still reducing or minimizing the amount of fouling or plugging in a hydroprocessing catalyst bed. By increasing the number of particles having a size of 75 &#x3bc;m or less, or 50 &#x3bc;m or less, while selectively removing larger particles from the SCT fraction, a higher yield of hydrocarbon products can be achieved for a feed containing an SCT fraction. This can reduce or minimize the amount of particulates that are disposed of by incineration or another disposal method for fractions that have a lesser value.

Growing community of inventors

Houston, TX, United States of America

Denise M Burcham