Exxonmobil Research and Engineering Company

David Scott Sinclair

Christopher John Fowler

John Roger Peterson

Robert Lee Antram

Thomas R Palmer

Brent England Beasley

Christopher S Hinson

Adam Garrett Susong

A delayed coking unit has a thermal shock-resistant, erosion-resistant internal lining to reduce thermally-induced mechanical stresses in the pressure boundary of the coke drum. The lining is effective to reduce or mitigate the transient thermal stress that occurs in the pressure boundary of the coke drum and to reduce or minimize the high thermal stress resulting from temperature differentials at the skirt-to-shell junction.

Internal lining for delayed coker drum

The determination of wax crystal particle size and population is used to monitor the performance of wax crystallizers used in lubricant oil processing using solvent dewaxing. The wax crystal particle size is monitored using online measurements. The information obtained from on-line monitoring is then used to control crystallization in the dewaxing equipment in order to optimize performance of the dewaxing units.

Method for on-line monitoring of wax crystallization

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Houston, TX, United States of America

David Scott Sinclair