Exxonmobil Research and Engineering Company

Exxonmobil Technology and Engineering Company

Jason M Golias

Jihad Mohammed Dakka

Scott Jeffrey Weigel

Guang Cao

Chuansheng Bai

Xinrui Yu

Majosefina Cunningham

Wesley Sattler

Brandon M Carcuffe

Megan E Witzke

Carolyn M Aimino

Isomerization of normal paraffins to form branched paraffins may be complicated by significant cracking of Cparaffins under isomerization reaction conditions. This issue may complicate upgrading of hydrocarbon feeds having significant quantities of heavier normal paraffins. Cracking selectivity may be decreased by combining one or more naphthenic compounds with a feed mixture comprising at least one Cnormal paraffin and/or by utilizing tungstated zirconium catalysts having decreased tungsten loading. Further, Cand Cnormal paraffins may undergo isomerization in the presence of Cnormal paraffins. Methods for isomerizing normal paraffins may comprise: providing a feed mixture comprising at least C-Cnormal paraffins and lacking normal paraffins larger than C; and contacting the feed mixture with a bifunctional mixed metal oxide catalyst under isomerization reaction conditions effective to form a product mixture comprising one or more branched paraffins formed from each of the C-Cnormal paraffins.

Isomerization of normal paraffins

Bulk metallic catalyst precursor compositions are provided that include a Group VIB metal, a Group VIII metal, an organic-compound based component, and an organo-metalloxane polymer or gel. The catalyst precursor compositions can further include a binder. Amorphous sulfided catalysts formed from the catalyst precursor compositions are also provided. The catalyst precursor compositions can have a surface area of about 20 m/g or less.

Stabilization of bulk catalysts with organo-metalloxane framework

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Clinton, NJ, United States of America

Jason M Golias