Hydrocracking process utilizing a catalyst having a reduced zeolite content

Patent · Tue Aug 15 04:00:00 EDT 1989

OSTI ID:5426244

Abdo, S F

This patent describes a process for refining hydrocarbon feedback containing organonitrogen components, organosulfur components or a mixture thereof. The process comprises: contacting the feedback with molecular hydrogen under hydrotreating conditions in the presence of a hydrotreating catalyst comprising a Group VIB metal component and a Group VIII metal component such that a subtantial proportion of the organonitrogen components, organosulfur components or mixture thereof is converted to ammonia, hydrogen sulfide or a mixture thereof; contacting substantially all of the effluent from the first step with molecular hydrogen in a first hydrocracking zone in the presence of a first hydrocracking catalyst comprising a zeolite and a hydrogeneration component to produce a hydrocracking product of substantially lower boiling point; separating the hydrocracking product into a higher boiling fraction and a lower boiling fraction; contacting the higher boiling fraction with molecular hydrogen in a second hydrocracking zone under hydrocracking conditions in an atmosphere which contains no more than about 200 ppmv ammonia and in the presence of a second hydrocracking catalyst to convert the higher boiling fraction into lower boiling products. The second hydrocracking catalysts comprises; a porous, inorganic refractory oxide component; and between about 40 weight percent and about 70 weight percent of a crystalline aluminosilicate Y zeolite having a silica-to-alumina mole ratio above about 6.0 intimately mixed with the refractory oxide component. The crystalline aluminosilicate Y zeolite having been ion-exchanged with Group VIII noble metal cations.

• Assignee: Union Oil Co. of California, Los Angeles, CA
• Patent Number(s): US 4857169
• Application Number: PPN: US 7119168A
• OSTI ID: 5426244
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
CATALYSTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCRACKING
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
PYROLYSIS
REFRACTORIES
SILICATES
SILICON COMPOUNDS
THERMOCHEMICAL PROCESSES
ZEOLITES