Exxonmobil Chemical Patents Inc.

Exxonmobil Upstream Research Company

Timothy F Kinn

Kevin J Knob

Michael C Clark

Mark M Disko

Scott William Clawson

Xiaohua Yi

Jeff H Moss

Kenneth W Desmond

A method and system are described for wirelessly communicating along tubular members. The method includes determining, constructing and installing a communication network, which communicates using one or more communication coupling devices along one or more tubular members. The communication network is used to perform operations for a system, such as hydrocarbon operations, which may involve hydrocarbon exploration, hydrocarbon development, and/or hydrocarbon production.

Method and system for performing wireless ultrasonic communications along tubular members

A process of producing PX comprising providing a C+ feedstock, the C+ feedstock has Chydrocarbons and C+ hydrocarbons, to a crystallization unit under crystallization conditions to produce a PX enriched stream having a PX concentration of at least 99.5 wt % based on the weight of the PX enriched stream, wherein the C+ feedstock has a PX concentration of at least 70 wt % based on total weight of xylenes in the C+ feedstock, which the C+ feedstock having a C+ hydrocarbons concentration in a range from 1 wppm to 10 wt % based on the total weight of the C+ feedstock.

Process and apparatus for para-xylene production

In a process for reducing the amount of benzene produced in a startup procedure for purification of an aromatic feedstream, the improvement comprising a start-up procedure including contacting said catalyst with said feedstream at elevated LHSV for a period of time sufficient to reduce benzene and/or toluene levels to a predetermined level, and proceeding under normal operational conditions.

Aromatic hydrocarbon purification method

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Houston, TX, United States of America

Timothy F Kinn