Supercharge Your Innovation With Domain-Expert AI Agents!

Method for producing lubricating oil base oil

A technology for lubricating base oil and production method, which is applied in the petroleum industry, processing hydrocarbon oil, etc., can solve problems such as poor pour point depressant effect and low yield, and achieve the effect of improving yield and pour point depressant effect.

Active Publication Date: 2007-05-23
CHINA PETROLEUM & CHEM CORP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a new method for producing lubricating base oil with higher yield and better pour point depressing effect in view of the shortcomings of low yield or poor pour point depressing effect in the existing method

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

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] This example illustrates the catalyst I used in the method provided by the invention and its preparation method.

[0026]The ZSM-22 molecular sieve used in this example was synthesized according to the patent U.S. Pat. No. 4,556,477 method. Weigh 286 grams of silica sol (silica content 25% by weight), and add 298 grams of distilled water to obtain a silica sol solution. Take by weighing 10 grams of aluminum sulfate (product of Beijing Chemical Plant, analytically pure, aluminum oxide content 15.3 weight %), be dissolved in 260 grams of distilled water; Take by weighing 23 grams of potassium hydroxide (product of Beijing Chemical Plant, analytically pure), be dissolved in 263 grams of distilled water. Under vigorous stirring, the aluminum sulfate solution was slowly added dropwise to the potassium hydroxide solution, and then the silica sol solution was added dropwise to the solution, and the stirring was continued for 15 minutes. Under vigorous stirring, 50 grams of 1...

example 2

[0030] This example illustrates the catalyst I used in the method provided by the invention and its preparation method.

[0031] The ZSM-22 molecular sieve synthesized in 173.3 gram alumina powders (same example 1) and 70 gram example 1 is mixed homogeneously, extruded into the trilobal bar that circumscribed circle diameter is 1.4 millimeters, dried 4 hours in 120 ℃ of air, 560 ℃ under an air atmosphere for 4 hours to prepare the catalyst carrier Z2.

[0032] Take 100 grams of carrier Z2, impregnate it with 80 milliliters of tetraammine platinum dichloride solution containing 0.3 grams of platinum for 4 hours, dry it in air at 120° C. for 4 hours, and roast it in a tube furnace at 450° C. for 4 hours to obtain catalyst C2. The composition of catalyst C2 is listed in Table 1.

example 3

[0034] This example illustrates the catalyst II used in the method provided by the invention and its preparation method.

[0035] The SAPO-11 molecular sieve used in this example was synthesized according to the method of Example 16 in the patent U.S. Pat. No. 4,440,871. Weigh 420 grams of 85% by weight phosphoric acid, add 880 grams of distilled water, 276 grams of pseudoboehmite (alumina content of 74.2% by weight, water content of 25.8% by weight), and stir evenly to obtain a mixture S1. Weigh 1298.4 grams of 40% by weight aqueous solution of hydroxytetra-n-butylamine and 52 grams of fumed silica gel (92.8% by weight of silicon oxide, 7.2% by weight of water), and stir evenly to obtain a mixture S2. The mixtures S1 and S2 were mixed, and 204 g of di-n-propylamine were added with stirring to obtain a reaction mixture. The reaction mixture was packed into a polytetrafluoroethylene-sealed reaction kettle, crystallized at 200°C for 24 hours, filtered, washed to neutrality, and...

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

No PUM Login to View More

Abstract

This invention is a manufacturing method of basic oil of lubricating oil, which includes that contact the fraction oil of lubricating oil with catalyst under the condition of hydrocatalytic dewaxing. The catalyst has layered catalyst I and II, the catalyst I contains a carrier that is composed of a heat-fast inorganic oxide and the zeolite molecular sieve with 4.2-4.8 A short axis and 5.4-7.0 long axis of one dimensional elliptical hole and platinum and / or Pd on the carrier. The catalyst II contains a carrier that is composed of a heat-fast inorganic oxide and the non-zeolite molecular sieve with 4.2-4.8 A short axis and 5.4-7.0 long axis of one dimensional elliptical hole and platinum and / or Pd on the carrier. The method of this invention greatly improves the yield of basic oil of lubricating oil.

Description

technical field [0001] The invention relates to a production method of lubricating oil base oil. Background technique [0002] Lubricant base oils are generally obtained from crude oil through a multi-step process, such as distillation, hydrocracking, hydrotreating, dewaxing, and hydrofining. Among them, a variety of methods can be used to dewax the raw oil to produce lubricating base oil with a pour point that meets the requirements. [0003] Effectively lowers the pour point of lube distillates through selective wax molecular cracking and / or isomerization. For example: Re28398 (U.S. Patent No. 3,700,585) describes a method of dewaxing by selective cracking of wax molecules using ZSM-5 zeolite catalyst. The defect of this dewaxing method is that the viscosity and density of the resulting oil increase with the decrease of the pour point; the second is that the wax cracking products are mainly such as C 4 - Below the light distillate and gas, the...

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 Patents(China)
IPC IPC(8): C10G49/06
Inventor 黄卫国康小洪董维正郭庆洲聂红石亚华李大东
Owner CHINA PETROLEUM & CHEM CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com