One-stage serial hydrocracking method

Abstract

The present invention discloses one-section cascade hydrocracking process, and features the hydrocracking unit comprising one hydrocracking pre-treating reactor filled with pre-treating catalyst and hydrocracking catalyst and one hydrocracking reactor filled with hydrocracking catalyst and post-hydrotreating catalyst connected serially. Compared with available technology, the hydrocracking unit of the present invention has the advantages of raised integral activity, increased treating capacity or increased operation period, and raised product quality.

Description

technical field The invention discloses a hydrocracking method, in particular a one-stage serial hydrocracking method. Background technique With the rapid development of the world economy, the demand for fuel oil products is increasing, and environmental protection regulations are becoming increasingly stringent, and the quality requirements for oil products are also getting higher and higher, which requires the development of technologies to produce clean oil products from inferior raw materials . Hydrocracking technology is the most direct and effective way to obtain high-quality light products from inferior heavy raw materials, so it has been widely developed and applied. According to the setting of the reaction part, the hydrocracking process can be divided into single-stage hydrocracking, one-stage series hydrocracking and two-stage hydrocracking, among which one-stage series hydrocracking is widely used. Depending on whether the tail oil is cyclically cracked, it ca...

AI Technical Summary

Problems solved by technology

US4834365 relates to a graded packing method with different particle sizes of hydrocracking catalysts, without considering different types of catalysts

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