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1. WO1999032578 - MONOFUNCTIONAL REFORMING CATALYST CONTAINING BISMUTH

Publication Number WO/1999/032578
Publication Date 01.07.1999
International Application No. PCT/US1998/023683
International Filing Date 06.11.1998
Chapter 2 Demand Filed 28.06.1999
IPC
B01J 29/62 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
29Catalysts comprising molecular sieves
04having base-exchange properties, e.g. crystalline zeolites, pillared clays
06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
60of the type L
61containing iron group metals, noble metals or copper
62Noble metals
C10G 35/095 2006.1
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
35Reforming naphtha
04Catalytic reforming
06characterised by the catalyst used
095containing crystalline alumino-silicates, e.g. molecular sieves
CPC
B01J 29/62
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
29Catalysts comprising molecular sieves
04having base-exchange properties, e.g. crystalline zeolites
06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
60of the type L, as exemplified by patent document US3216789
61containing iron group metals, noble metals or copper
62Noble metals
C10G 35/095
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION
35Reforming naphtha
04Catalytic reforming
06characterised by the catalyst used
095containing crystalline alumino-silicates, e.g. molecular sieves
Applicants
  • CHEVRON CHEMICAL COMPANY LLC [US]/[US]
  • IDEMITSU KOSAN CO., LTD. [JP]/[JP]
Inventors
  • INNES, Robert, A.
  • SUGIMOTO, Michio
  • FUKUNAGA, Tetsuya
Agents
  • DeJONGHE, Thomas, G.
Priority Data
08/995,58822.12.1997US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) MONOFUNCTIONAL REFORMING CATALYST CONTAINING BISMUTH
(FR) CATALYSEUR DE REFORMAGE MONOFONCTIONNEL CONTENANT DU BISMUTH
Abstract
(EN) A catalytic reforming process is disclosed using a catalyst containing a Group VIII metal, low amounts of bismuth, and a zeolite L. The catalyst is a non-acidic, monofunctional reforming catalyst. Preferably, the catalyst contains one or more halogens. Preferably, the feed includes C8 hydrocarbons. The addition of small amounts of bismuth increase or substantially maintain catalyst stability. Unexpectedly low dealkylation rates are achieved using the catalyst while reforming to produce aromatics, especially to produce xylenes such as paraxylene.
(FR) On décrit un procédé de reformage catalytique dans lequel on utilise un catalyseur contenant un métal du Groupe VIII, de faibles quantités de bismuth et une zéolite L. Le catalyseur est un catalyseur de reformage monofonctionnel, non acide. Le catalyseur contient de préférence un ou plusieurs halogènes. La charge comprend de préférence des hydrocarbures C8. Le fait d'ajouter de petites quantités de bismuth permet d'accroître ou de maintenir sensiblement la stabilité du catalyseur. On obtient des taux de désalkylation imprévisiblement faibles lorsqu'on utilise le catalyseur pendant le reformage pour produire des aromatiques, plus particulièrement pour produire des xylènes tels que du paraxylène.
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