Hydrocarbon cracking process for converting gas oil preferentially to middle distillate and lower olefins
AssigneeShell Oil Company
InventorsWeijian Mo, Georghios Agamemnonons Hadjigeorge, Frank Hsian Hok Khouw
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Abstract
Described is a hydrocarbon cracking process for converting a heavy hydrocarbon feedstock selectively to middle distillate and lower olefins by catalytically cracking a heavy hydrocarbon feedstock within a riser reactor zone by contacting the heavy hydrocarbon feedstock with both a middle distillate selective cracking catalyst in combination with a shape selective zeolite additive under suitable catalytic cracking reaction conditions.
Claims7
A hydrocarbon cracking process for converting a heavy hydrocarbon feedstock preferentially to middle distillate and lower olefins, wherein said hydrocarbon cracking process comprises:
- catalytically cracking said heavy hydrocarbon feedstock within a riser reactor zone by contacting under suitable catalytic cracking conditions within said riser reactor zone said heavy hydrocarbon feedstock with a middle distillate selective cracking catalyst in combination with a shape selective zeolite additive that are introduced into said riser reactor zone,
- wherein said middle distillate selective cracking catalyst comprises a molecular sieve component, an alumina component, and an inorganic refractory matrix component,
- wherein said middle distillate selective cracking catalyst comprises a zeolitic surface area less than 130 m2/g,
- whereby said heavy hydrocarbon feedstock is preferentially converted to middle distillate and lower olefins.
Dependencies are inferred from the claim text.