Catalytic cracking process with simultaneous production of a low Btu fuel gas and catalyst regeneration

Patent · Tue Jan 13 00:00:00 EST 1981

OSTI ID:6301696

Grenoble, D C; Weissman, W

A process is described for the catalytic cracking of a hydrocarbon feedstream involving the use of an acid catalyst comprising a catalytic component selected from the group consisting of oxides of tungsten, niobium and mixtures thereof and tungsten or niobium oxides in combination with one or more additional metal oxides selected from the group consisting of tantalum oxide, hafnium oxide, chromium oxide, titanium oxide and zirconium oxide on supports, wherein (1) the feedstream is catalytically cracked by being contacted with said catalyst at a temperature and for a time (optionally, in combination with H2O), sufficient to crack the hydrocarbon yielding a cracked product and a deactivated catalyst and (2) subjecting the deactivated catalyst to gasification conditions consisting of (A) partial oxidative combustion to produce a low Btu gas rich in CO or, (B) the addition of steam to produce a gas rich in H2, or both, with the recirculation of the decoked catalyst back to the first step.

• Assignee: Exxon Research And Engineering Co
• Patent Number(s): US 4244811
• OSTI ID: 6301696
• Resource Relation: Patent File Date: Filed date 25 Jul 1978
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
CATALYTIC CRACKING
CATALYSTS
HYDROCARBONS
LOW BTU GAS
PRODUCTION
NIOBIUM OXIDES
CATALYTIC EFFECTS
TUNGSTEN OXIDES
HYDROGEN PRODUCTION
REGENERATION
STEAM
CHALCOGENIDES
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
NIOBIUM COMPOUNDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
020400* - Petroleum- Processing