(19)

(11)

EP 0 705 320 A1

(12)

(43) Date of publication: 10.04.1996 Bulletin 1996/15 (21) Application number: 94920276.0 (22) Date of filing: 17.06.1994

(51) International Patent Classification (IPC):  C10G 11/ 00( . ) C10G 11/ 18( . ) B01J 8/ 00( . ) (86) International application number: PCT/US1994/006945 (87) International publication number: WO 1995/000603 (05.01.1995 Gazette 1995/02)

(84) Designated Contracting States: BE DE FR GB IT NL (30) Priority: 21.06.1993 US 19930080261 21.06.1993 US 19930080382 (71) Applicant: EXXON RESEARCH AND ENGINEERING COMPANY Florham Park, New Jersey 07932-0390 (US)	(72) Inventors: TERRY, Patrick, Henry Middletown, NJ 07748 (US) SHEROWSKI, Gregory, Steven Whippany, NJ 07981 (US) HOLMES, Philip West Horsley, Surrey KT24 6HH (GB) (74) Representative: Somers, Harold Arnold  ESSO Engineering (Europe) Ltd. Patents & Licences Mailpoint 72 Esso House Ermyn Way Leatherhead, Surrey KT22 8XE Leatherhead, Surrey KT22 8XE (GB)