Technological Applications of Zeolites in Catalysis

摘要: Abstract Zeolites have been used as catalysts in industry since the early 1960s. The great majority of commercial applications employ one three zeolite types: Y (faujasite); mordenite; ZSM-5. By far largest use zeolites is catalytic cracking, and to a lesser extent hydrocracking. Table 1 presents some data showing importance this field [1]. are for United States refineries only must be multiplied by factor arrive at worldwide use. Better than 90% free-world cracking units now catalysts. For many years it had assumed that crystalline aluminosilicates with their uniform pore structure would make inferior amorphous silica-slumina rather wide size distribution. tremendous acid activity hydrogen also was not recognized. Rabo co-workers [2] showed 2nd International Congress on Catalysis exchanged faujasites possessed good isomerization ability, but applicat...