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:
Jun. 26, 1984
Filed:
Apr. 26, 1983
Hartley Owen, Belle Mead, NJ (US);
Susan K Marsh, Mt. Holly, NJ (US);
Bernard S Wright, East Windsor, NJ (US);
Mobil Oil Corporation, New York, NY (US);
Abstract
An improved continuous process for converting lower olefinic hydrocarbon feedstock to C.sub.5.sup.+ liquid hydrocarbons by contacting vapor phase olefinic feedstream with acid zeolite catalyst in the presence of recycled diluent stream rich in C.sub.3 -C.sub.4 hydrocarbons in an enclosed reactor at elevated temperature and pressure. The improved technique comprises a system for cooling reactor effluent to recover a heavier hydrocarbon stream containing a mixture of C.sub.3 -C.sub.4 hydrocarbons and C.sub.5.sup.+ hydrocarbons and debutanizing the heavier hydrocarbons below reactor pressure to obtain a C.sub.5.sup.+ product stream and a condensed C.sub.3 -C.sub.4 hydrocarbon stream. Operating efficiencies are realized in the heat exchange system by reboiling the debutanized C.sub.5.sup.+ hydrocarbon product stream with hot reactor effluent, and by recycling and combining at least a portion of the condensed C.sub.3 -C.sub.4 hydrocarbon stream to dilute liquid olefin hydrocarbon feedstock. By increasing pressure on the liquid olefinic hydrocarbon feedstock and liquid recycle stream to at least the elevated reactor pressure in the liquid state prior to vaporization, energy is conserved.