Combined catalytic and alkali metal hydrodesulfurization and con

Combined desulfurization and hydroconversion with alkali metal h

Combined desulfurization and hydroconversion with alkali metal o

Combined disulfurization and conversion with alkali metals

Combined fluid catalytic cracking and hydrocracking process

Combined hydroreforming-hydroisomerization process

Combined hydrotreating and process

Combined hydrotreating process and configurations for same

Combined process for heavy oil upgrading and synthetic fuel prod

Combined process of low degree solvent deasphalting and...

Combined steam conversion process for treating vacuum gas oil

Combined thermal and catalytic treatment of heavy petroleum...

Combusting flue gas in a cracking catalyst regeneration process

Combustion air preheating

Composites of microporous aluminum phosphates and zeolites and c

Composition and a method for its use in dehydrocyclization of al

Composition and method for coke retardant during hydrocarbon pro

Composition and reforming process for the operation of a magneti

Composition of matter and process useful for conversion of hydro

Compositions and processes for reducing NOx emissions during...