Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Combined catalyst and method for producing lubricating oil base oil from hydrocracking tail oil

A combination of catalysts and catalysts, applied in chemical instruments and methods, catalyst activation/preparation, molecular sieve catalysts, etc., can solve the problems of reducing interaction, mesopores without structure, etc., to achieve increased yield and good isomerism depreciation effect of effect

Active Publication Date: 2020-02-28
CHINA PETROLEUM & CHEM CORP +1
View PDF10 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The seed crystal selected in this invention is a microporous molecular sieve, which is added to the preparation system after silanization, and its hydrophobicity is used to increase its effect on the hydrophobic end of the surfactant micelle, thereby reducing the interaction between the two directing agents. However, the formed mesopores still do not have a regular structure, and whether the addition of seed crystals reduces the amount of templating agent has not been reported.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combined catalyst and method for producing lubricating oil base oil from hydrocracking tail oil
  • Combined catalyst and method for producing lubricating oil base oil from hydrocracking tail oil
  • Combined catalyst and method for producing lubricating oil base oil from hydrocracking tail oil

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0064]In the present invention, the mother liquor after crystallization can be prepared according to conventional methods in the art, for example, when the ten-membered ring molecular sieve is ZSM-22 molecular sieve, the preparation method of the mother liquor after crystallization can refer to document O. Muraza et al., Microporous and Mesoporous Materials 206(2015) 136–143. When the ten-membered ring silica-alumina molecular sieve is ZSM-48 molecular sieve, the preparation method of the mother liquor after crystallization can refer to the literature P.Me'riaudeau et al / Journal of Catalysis, 1999 (185), 435-444, or refer to United States patent application US5961951. In one embodiment, the preparation process of the crystallized mother liquor includes: preparing a silicon-containing solution, an aluminum-containing solution, and an alkaline liquid, mixing the above-mentioned liquids to form a gel, and then performing crystallization at a certain temperature.

[0065] In the ...

preparation example 1

[0084] (1) Preparation of mother liquor after crystallization

[0085] Take 36.3 grams of SiO containing 40% by weight 2 silica sol, 1.77 g of analytically pure Al 2 (SO 4 ) 3 18H 2 O, 3.94 grams of analytically pure KOH and 8.44 grams of hexamethylenediamine are ready for use. Hexamethylenediamine was mixed with silica sol, KOH and Al 2 (SO 4 ) 3 18H 2 O and 89.4 grams of deionized water were mixed, and then the two solutions were mixed, stirred for 1 hour, then transferred to a reaction kettle, and crystallized at 160° C. for 72 hours.

[0086] (2) Preparation of filter cake

[0087] Filter the mother liquor after crystallization prepared in the operation (1), and continue suction filtration for 5 minutes when there is no filtrate on the filter cake, and obtain the filter cake F-1, which has a dry basis content of 11.2 % by weight and a silica / alumina molar ratio of 60.

[0088] (3) Preparation of molecular sieve precursor

[0089] The filter cake F-1 was raised ...

preparation example 2

[0099] (1) Preparation of mother liquor after crystallization

[0100]Get 45 grams of white carbon black, 1.25 grams of analytically pure Al 2 (SO 4 ) 3 18H 2 O, 1.88 grams of analytically pure NaOH and 39.3 grams of hexamethylenediamine are ready for use. Mix hexamethylenediamine with silica and 200 g of deionized water, NaOH and Al 2 (SO 4 ) 3 18H 2 O and 272 grams of deionized water were mixed, and then the two solutions were mixed, stirred for 1 hour, then transferred to a reaction kettle, and crystallized at 160° C. for 72 hours.

[0101] (2) Preparation of filter cake

[0102] Filter the crystallized mother liquor prepared in step (1), count as there is no filtrate on the filter cake, continue suction filtration for 5 minutes, obtain filter cake F-2, and the dry basis content of the filter cake F-2 is 11.2 % by weight and a silica / alumina molar ratio of 60.

[0103] (3) Preparation of molecular sieve precursor

[0104] The filter cake F-2 was raised from room ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a combined catalyst and a method for producing lubricating oil base oil from hydrocracking tail oil, wherein the combined catalyst comprises a first catalyst and a second catalyst, the first catalyst contains a ten-membered ring molecular sieve M1, the second catalyst contains a ten-membered ring molecular sieve M2, the first catalyst and the second catalyst are respectively filled in different reactors, and the ten-membered ring molecular sieve M1 and / or the ten-membered ring molecular sieve M2 has the following characteristics that a molar ratio of silicon oxide to aluminum oxide is 120-300, the catalyst contains a mesoporous structure, a closed hysteresis loop appears at a low-temperature nitrogen adsorption-desorption curve P / P0 of 0.4-0.99, and the initial position of the closed hysteresis loop is P / P0 of 0.4-0.7. According to the invention, with the application of the combined catalyst to produce lubricating oil base oil from hydrocracking tail oil, the good pour point depressing effect can be obtained, and the lubricating oil base oil is high in yield and viscosity index.

Description

technical field [0001] The invention relates to the field of hydrotreating of hydrocracking tail oil, in particular to a method for producing lubricating oil base oil by combining a catalyst and hydrocracking tail oil. Background technique [0002] Molecular sieve material has high acidity and high specific surface area, and is an excellent acidic catalyst. At the same time, molecular sieve materials have strong chemical stability and hydrothermal stability, and are difficult to be destroyed by corrosion and dissolution of reactants. Compared with commonly used homogeneous catalysts, molecular sieve material catalysts can be directly reused without separation, and will not pollute the environment and products. The specific surface area and other pore structure parameters of molecular sieve materials have an important influence on the catalytic performance of molecular sieves. Therefore, the preparation of molecular sieves with special channels is an important research direc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J37/16B01J37/08B01J37/10B01J29/74B01J29/80C10G45/64
CPCB01J37/16B01J37/08B01J37/10B01J29/7476B01J29/7461B01J29/80C10G45/64B01J2229/18
Inventor 毕云飞夏国富黄卫国郭庆洲方文秀
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com