Recycling process for demetalization of hydrocarbon oil

Red mud as a first-stage catalyst in a two-stage, close-coupled

Redox catalyst plus promoter for oxidation of hydrocarbons

Reduced chaos cyclone separation

Reduced gas holdup in an ebullated bed reactor

Reduced gas holdup in ebullated reactor

Reduced nitrogen content of hydrocarbon fraction by catalytic po

Reduced NOx combustion promoter for use in FCC processes

Reduced puffing needle coke from coal tar

Reduced puffing needle coke from coal tar distillate

Reduced puffing needle coke from decant oil

Reducing CO2 levels in CO2-rich natural gases converted into...

Reducing hydrogen consumption in hydrotreating petroleum fractio

Reducing metal content of oil feeds

Reducing metal content of oil feeds

Reducing metal corrosion of hydrocarbons using acidic...

Reducing metal corrosion of hydrocarbons using acidic...

Reducing NO.sub.x emissions from FCC regenerators by segregated

Reducing NO.sub.x emissions with antimony additive

Reducing NO.sub.x emissions with group IIIB compounds