Shape selective hydrocracking catalyst and method of use thereof

By using a combination of hydroforming shape cracking catalyst and isomerization dewaxing and supplementary refining catalyst, the problems of insufficient catalyst selectivity and flocculent matter in the production of bright oil in the existing technology have been solved, and the production of high-quality bright oil has been achieved, meeting the special requirements of aerospace, military and other industries.

CN121607180BActive Publication Date: 2026-06-05SHANDONG JINCHENG PETROCHEMICAL GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG JINCHENG PETROCHEMICAL GRP CO LTD
Filing Date
2026-01-30
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing technologies struggle to produce high-quality bright oils with a viscosity index greater than 90, a kinematic viscosity at 100℃ ≥ 26 mm²/s, a pour point less than -15℃, and a transparent, flocculent appearance at 15℃. This is particularly problematic for lubricating greases used in specialized industries such as aerospace and military, where insufficient catalyst selectivity and flocculent matter issues exist.

Method used

A hydro-shape-selective cracking catalyst is used, which includes SAPO-11 molecular sieve, ZSM-23 molecular sieve and low sodium microporous pseudoboehmite powder as support. The active metal components are palladium, nickel, lanthanum and cerium. The active metals are loaded by unsaturated impregnation method. Combined with isomerization dewaxing and post-refining catalyst and hydrotreating process, the heavy oil produced by hydrotreating is subjected to secondary hydrotreating.

Benefits of technology

We produce low pour point transformer oil and high-quality bright oil, with a pour point of less than -50℃, a viscosity index greater than 110, a kinematic viscosity of ≥26mm²/s at 100℃, and a transparent, flocculent state at 15℃, meeting the needs of special industries.

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Abstract

The present application relates to the technical field of petroleum chemical catalyst, in particular to a hydrogenation shape selective cracking catalyst and its application method.The hydrogenation shape selective cracking catalyst comprises a carrier and an active metal component, the carrier comprises SAPO-11 molecular sieve, ZSM-23 molecular sieve and low-sodium small-pore pseudo-boehmite powder, and the active metal component comprises palladium, nickel, lanthanum and cerium;the content of SAPO-11 molecular sieve is 40-50 wt%, the content of ZSM-23 molecular sieve is 7-8.5 wt%, the content of palladium is 0.2-1.5 wt%, the content of nickel is 0.5-5.5 wt%, the content of cerium is 0.6-4%, the content of lanthanum is 2-7%, and the rest is low-sodium small-pore pseudo-boehmite powder, based on the total weight of the catalyst.The present application can produce transformer oil with a pour point less than-50 DEG C and high-quality bright oil products with a viscosity index greater than 110 and being transparent and free of flocculation at 15 DEG C.
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