What are the differences between hydrogenation refining catalysts and hydrocracking catalysts in terms of function and chemical composition?
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What are the differences between hydrogenation refining catalysts and hydrocracking catalysts in terms of function and chemical composition? Why is there such a difference?
Different active metals result in different emphasis on the properties of the carrier; hydrogenation refining is primarily used to remove heteroatoms from petroleum products, whereas hydrocracking is intended to break down large molecules into smaller ones. The goal is to improve the quality of oil products.
The acidity of hydrogenation refining catalysts is lower, while that of hydrocracking catalysts is much higher; in addition, the amount of active metal may also differ.
The carriers for catalysts differ; cracking catalysts typically use molecular sieves as carriers, while those used for refining processes employ aluminum oxide as carriers. Molecular sieves have a stronger acidity, and the active centers in refining catalysts are generally composed of MO-CO or MO-NI. Catalysts generally contain a lot of W
Different active metals result in different emphasis on the properties of the carrier; hydrogenation refining is primarily used to remove heteroatoms from petroleum products, whereas hydrocracking is intended to break down large molecules into smaller ones. The goal is to improve the quality of oil products