Feed hydrotreating for improved thermal cracking
Patent
·
OSTI ID:5390812
A process is described for hydrogenation of a thermal cracking feedstock in the presence of a bimetallic catalyst containing added chlorine and/or fluorine prior to noncatalytic thermal cracking. The preferred catalysts are tungsten - nickel sulfide, cobalt - molybdenumm sulfide, nickel - molybdenum sulfide, or tungsten - cobalt sulfide supported on silica, alumina, zeolites, or activated alumina containing ZrO/sub 2/ or TiO/sub 2/ with added chlorine and/or fluorine. The process results in increased yields of light olefins and BTX (benzene, toluene, and xylene) as compared to cracking under conditions of pre-hydrogenation in the presence of an unpromoted bimetallic catalyst. (BLM)
- Assignee:
- Lummus Co.
- Patent Number(s):
- US 4181601
- OSTI ID:
- 5390812
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020400* -- Petroleum-- Processing
AROMATICS
BENZENE
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORINE
COBALT
COBALT COMPOUNDS
COBALT SULFIDES
CRACKING
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
FLUORINE
FOSSIL FUELS
FUELS
HALOGENS
HYDROCARBONS
HYDROGENATION
METALS
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
NICKEL
NICKEL COMPOUNDS
NICKEL SULFIDES
NONMETALS
ORGANIC COMPOUNDS
PETROLEUM
PYROLYSIS
REFRACTORY METALS
SULFIDES
SULFUR COMPOUNDS
THERMAL CRACKING
THERMOCHEMICAL PROCESSES
TOLUENE
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN
XYLENES
020400* -- Petroleum-- Processing
AROMATICS
BENZENE
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORINE
COBALT
COBALT COMPOUNDS
COBALT SULFIDES
CRACKING
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
FLUORINE
FOSSIL FUELS
FUELS
HALOGENS
HYDROCARBONS
HYDROGENATION
METALS
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
NICKEL
NICKEL COMPOUNDS
NICKEL SULFIDES
NONMETALS
ORGANIC COMPOUNDS
PETROLEUM
PYROLYSIS
REFRACTORY METALS
SULFIDES
SULFUR COMPOUNDS
THERMAL CRACKING
THERMOCHEMICAL PROCESSES
TOLUENE
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN
XYLENES