The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 1989
Filed:
May. 23, 1988
Raymond R Herber, Medinah, IL (US);
Gregory J Thompson, Waukegan, IL (US);
UOP Inc., Des Plaines, IL (US);
Abstract
A process for the catalytic dehydrogenation of a dehydrogenatable C.sub.2 -plus feed hydrocarbon which comprises the steps of: (a) passing a feed stream comprising the C.sub.2 -plus feed hydrocarbon into an isothermal dehydrogenation zone and through at least one bed of dehydrogenation catalyst maintained at isothermal dehydrogenation conditions selected to convert at least about 50 weight percent of the dehydrogenatable C.sub.2 -plus feed hydrocarbon and producing an isothermal dehydrogenation zone effluent stream comprising hydrogen, unconverted C.sub.2 -plus feed hydrocarbon and C.sub.2 -plus product hydrocarbon; (b) forming an oxidation catalyst bed feed stream by admixing an oxygen-containing stream with the isothermal dehydrogenation zone effluent stream; (c) passing the oxidation catalyst bed feed stream through a bed of hydrogen selective oxidation catalyst maintained at selective oxidation conditions and producing an oxidation zone effluent stream having a reduced concentration of hydrogen and an increased temperature; (d) passing the oxidation zone effluent stream into an adiabatic dehydrogenation zone and through at least one bed of dehydrogenation catalyst maintained at dehydrogenation conditions selected to convert additional unconverted C.sub.2 -plus feed hydrocarbon and producing an adiabatic dehydrogenation zone effluent stream comprising hydrogen, unconverted C.sub.2 -plus feed hydrocarbon and C.sub.2 -plus product hydrocarbon; and (e) recovering the C.sub.2 -plus product hydrocarbon.