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.

 
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< N3 alkylated benzimidazole derivatives as MEK inhibitors

> Method for treating a hydrocarbon feedstock including resin removal

> Reactor system with interstage product removal

~ 00541