Definition of "hydrotreating" [hydrotreating]

• Present participle of hydrotreat. (verb)
• A chemical engineering process in which reaction with hydrogen is used to remove impurities, especially as part of oil refining (noun)

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• ""A lot of biomass processing technologies resemble a petroleum industry process called hydrotreating, which uses a lot of hydrogen," Bond said."
• "Next comes distillation, thermal conversion, catalytic conversion, and hydrotreating."
• "Catalytic hydrotreating is a hydrogenation process used to remove about 90% of contaminants such as nitrogen, sulfur, oxygen, and metals from liquid petroleum fractions."