Screening of commercial hydrocracking catalysts by temperature-programmed methods:tpr/tps/tpd

摘要

The basic principle in hydrocracking catalyst design is to obtain a balance between hydrogen transfer-functionality and cracking-functionality to achieve a desired slate of products without coke deposition.The choice of catalyst will depend,apart from economic consideration,on factors such as feed properties and characteristics of desired products.For example,while choosing the appropriate hydrogenating/dehydrogenating function,it must be considered if the feed contains poisons such as sulfur,nitrogen and oxygen,which make the use of noble metals infeasible [1].