Catalysis --
Catalytic cracking --
Catalytic reforming --
Catalytic reaction engineering --
Ceramics -- 
Certified Chartered Chemical Engineers --
Chartered Chemical Engineers --
Chemical engineering --
Chemical kinetics -- 
Chemical reaction --
Chemical synthesis --
Chemical vapor deposition (CVD) --
Chemical solution deposition --
Chemistry --
Chromatographic separation --
Circulating fluidized bed --
Combustion --
Computational fluid dynamics (CFD) --
Conservation of energy -- 
Conservation of mass -- 
Conservation of momentum -- 
Crystallization processes --