ALEXANDRIA, Va., June 9 -- United States Patent no. 12,649,704, issued on June 9, was assigned to ExxonMobil Chemical Patents Inc. (Baytown, Texas).

"Processes for dehydrogenating alkanes and alkyl aromatic hydrocarbons" was invented by Saurabh S. Maduskar (Houston), Xiaoying Bao (Houston) and Keith H. Kuechler (Friendswood, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydrocarbon feed can be contacted with dehydrogenation catalyst particles to produce a conversion effluent that includes coked catalyst particles and dehydrogenated hydrocarbon(s). The coked catalyst particles can be contacted with an oxidant and a fuel to produce a combustion effluent that can include catalyst particles lean in coke...