Exxonmobil Chemical Patents Inc.

Renyuan Yu

Wenyih Frank Lai

Anatoly Ilich Kramer

James Richardson Lattner

Paul F Keusenkothen

Teng Xu

Brett Thomas Loveless

Frank Cheng-Yu Wang

Sina Sartipi

Ronald Raymond Hill, Jr

Elizabeth G Mahoney

Mechilium J G Janssen

Roxana Perez Velez

Andrew P Broenen

Nan Hu

Zsigmond Varga

Bryan Tiedemann

Brett T Loveless

Mechilium JG Janssen

Methylparaffins having limited methyl branching may be prepared by contacting at least one linear olefin with hydrogen in the presence of a dual-function supported catalyst comprising a solid acid component and a hydrogenation component under conditions sufficient to catalytically isomerize the at least one linear olefin into an intermediate product comprising one or more branched olefins, and hydrogenating the one or more branched olefins to form an isoparaffin product comprising one or more methylparaffins. Heat transfer fluids comprising such methylparaffins may be used in various thermal management systems, such as within various systems of electric vehicles, server farms, or other locales in need of efficient heat transfer.

Methylparaffins obtained through isomerization of linear olefins and use thereof in thermal management

A method for isomerizing alpha olefins to produce an isomerization mixture comprising branched olefins can comprise contacting an olefinic feed including one or more C-Calpha olefins with a catalyst under skeletal isomerization conditions, wherein the catalyst comprises a molecular sieve having an MRE topology; and obtaining an isomerization mixture comprising one or more C-Cbranched olefins.

Methods for isomerizing alpha olefins

In an embodiment, a method for decreasing reactor fouling in a steam cracking process is provided. The method includes steam cracking a hydrocarbon feed to obtain a quench oil composition comprising a concentration of donatable hydrogen of 0.5 wt. % or more based on a total weight percent of the quench oil composition; exposing a steam cracker effluent flowing from a pyrolysis furnace to the quench oil composition to form a mixture; and fractionating the mixture in a separation apparatus to obtain a steam cracker tar. In another embodiment, a hydrocarbon mixture is provided. The hydrocarbon mixture includes a mid-cut composition.

Steam cracking processes and the use of solvents streams produced by solvent-assisted tar conversion processes

Processes are described for isomerizing one or more C-Calpha olefins to produce an isomerization mixture comprising one or more C-Cinternal olefins comprising contacting an olefinic feed comprising the one or more C-Calpha olefins with a catalyst under isomerization conditions, wherein the catalyst comprises a microporous crystalline aluminosilicate having an MWW framework. The resulting isomerization mixture typically exhibits a low pour point with maintained biodegradability properties as compared to the olefinic feed, and is particularly useful in drilling fluid and paper sizing compositions.

Processes for isomerizing alpha olefins

Processes are described for isomerizing one or more C-Calpha olefins to produce an isomerization mixture comprising one or more C-Cinternal olefins comprising contacting an olefinic feed comprising the one or more C-Calpha olefins with a catalyst under isomerization conditions, wherein the catalyst comprises a microporous crystalline aluminosilicate selected from the group consisting of ZSM-5, ZSM-23, ZSM-35, ZSM-11, ZSM-12, ZSM-48, ZSM-57, and mixtures or combinations thereof, and wherein the microporous crystalline aluminosilicate has a SiO/AlOmolar ratio of less than or equal to about 100. The resulting isomerization mixture typically exhibits a lower pour point and maintained biodegradability properties as compared to the olefinic feed, and is particularly useful in drilling fluid and paper sizing compositions.

Growing community of inventors

Humble, TX, United States of America

Renyuan Yu