Process for the hydrocracking of a hydrocarbonaceous feedstock

Patent · Tue Aug 21 04:00:00 EDT 1990

OSTI ID:6593309

Groeneveld, D J.W.; Sie, S T

This patent describes a process for hydrocracking a hydrocarbonaceous feedstock. It comprises: contacting the feedstock with hydrogen-containing gas in a first reaction zone maintained at first reaction zone temperature and pressure conditions and containing a first hydrocracking catalyst to obtain a first reaction zone effluent stream; separating the first reaction zone effluent stream a substantially the first reaction zone temperature and pressure conditions to form a first gaseous effluent phase and a first liquid effluent stream; contacting first liquid effluent stream in a second reaction zone at second reaction zone conditions of temperature and pressure in the presence of hydrogen and a second hydrocracking catalyst; fractionating the combined stream at fractionation conditions to form at least one distillate product stream and at least one residual fraction stream; and recycling at least one residual fraction stream to either the first reaction zone or the second reaction zone or both.

• Assignee: Shell Oil Co., Houston, TX (USA)
• Patent Number(s): A; US 4959384
• Application Number: PPN: US s 7-373711
• OSTI ID: 6593309
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
CATALYTIC CRACKING
CHALCOGENIDES
CHEMICAL FEEDSTOCKS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROCRACKING
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
NITROGEN
NONMETALS
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
PYROLYSIS
RECYCLING
SULFIDES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
ZEOLITES