Processing technology of non-hydrogenated dewaxing catalysts

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A non-hydrogenated dewaxing catalyst is used in a process that enhances liquefied petroleum gas and high-octane gasoline of value through catalytic action without the addition of hydrogen; it can be applied to processed oils that have re-condensed, to oils produced using non-hydrogenated dewaxing catalysts in refineries, as well as to other low-quality oils, and it requires simple equipment. The product dewaxing catalyst uses a high-silica molecular sieve with a specific pore structure; under non-hydrogenous conditions, this catalyst is used to treat reduced first and second fraction oils as well as catalytic cracking heavy oils, while leaving the naphthenes and aromatics unchanged. Non-hydrogenated dewaxing catalysts feature high activity, good thermal stability, and excellent structural selectivity. The catalyst formulation can be adjusted according to the properties of the feedstocks in small and medium-sized refineries, the existing process conditions, as well as the specific requirements of the desired products, thereby enabling the provision of various non-hydrogenated reforming catalysts from this series.