Method for preparing paraffin hydrocarbon shape-selective isomerization catalyst

By loading active components and TON-type small grain molecular sieves during catalyst preparation, a catalyst with two pore systems is formed, which solves the problem of low activity and selectivity of existing catalysts and significantly improves the efficiency of paraffin isomerization reaction. and base oil yield.

CN105521816AActive Publication Date: 2016-04-27SINOPEC (DALIAN) PETROCHEMICAL RES INST CO LTD +1
16 Cites 0 Cited by

Patent Information

Application Number
CN201410564010.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2014-10-22
Publication Date
2016-04-27
Estimated Expiration
2034-10-22

AI Technical Summary

Technical Problem

The acidic center of existing isomeric dewaxing catalysts is covered during the preparation process, resulting in low activity and selectivity, and insufficient stability and resistance to sulfur and nitrogen poisoning, resulting in side reactions.

Method used

The active components are loaded onto the macroporous pore-forming agent and mixed with TON-type small-grain molecular sieves, refractory oxides and peptizers. The catalyst is prepared through drying and roasting to form a catalyst with two pore systems, which improves processing efficiency. /Dehydrogenation activity and reaction selectivity.

Benefits of technology

The activity and selectivity of the isomerization reaction are improved, the production cost is reduced, and the base oil yield and the yield of isomerized hydrocarbons are significantly increased during the selective isomerization process of paraffin hydrocarbons.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a method for preparing a paraffin hydrocarbon shape-selective isomerization catalyst. The method comprises the following steps: 1) active ingredients are loaded to a macropore pore-forming agent, then the active ingredients are dried to obtain a modified pore-forming agent; and 2) a TON-type small grain molecular sieve, a refractory oxide, the modified pore-forming agent, a peptizing agent and water are mixed, a mixture is shaped, dried, and calcinated to obtain the catalyst product. The method has the advantages of simple process flow and low cost, and the catalyst product used in a paraffin hydrocarbon shape-selective hydrocarbon reaction has the characteristics of high target product yield and low pour point.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Battery container and lid

    US4419420A

  • Hydrotreating / isomerization process to produce low pour point distillate fuels and lubricating oil stocks

    US4518485A

  • Cascade hydrodewaxing process

    US4599162A

  • Catalyst composition dewaxing of lubricating oils

    US4601993A

  • Lubricant production process

    US4919788A