Reduced NOx combustion promoter for use in FCC processes

Reducing NO.sub.x emissions with antimony additive

Reducing NO.sub.x emissions with group IIIB compounds

Reducing NO.sub.x emissions with zinc catalyst

Reducing sulfur trioxide concentration in regeneration zone flue

Reduction of coker furnace tube fouling in a delayed coking...

Reduction of foaming in a slurry catalyst hydrocarbon conversion

Reduction of gas phase reduced nitrogen species in partial...

Reduction of gas phase reduced nitrogen species in partial...

Reduction of SO.sub.x in regenerator off gas of a fluid cracking

Reduction of sulphur content in FCC-naphtha

Regenerating zeolitic cracking catalyst

Regenerating zeolitic cracking catalyst

Regenerating zeolitic cracking catalyst

Regeneration of alkali metal sulfides from alkali metal hydrosul

Regeneration of alkali metal sulfides from alkali metal hydrosul

Removal of carbon monoxide and sulfur oxides from refinery flue

Removal of contaminating metals from FCC catalyst by NH.sub.4 ci

Removal of quinoline insolubles from coal derived fractions

Removing pollutants from flue gas in nonzeolitic catalytic crack