Check patentability & draft patents in minutes with Patsnap Eureka AI!

A method for preparing lubricating oil base oil by hydrogenation of high-waxy raw materials

A lubricating oil base oil and raw material oil technology, which is applied in the field of hydrogenation conversion of high-waxy raw materials, can solve the problems of low yield of light and heavy base oils and affect process economy, and achieve strong raw material adaptability and high performance Good, simple process conditions

Active Publication Date: 2022-03-29
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the above process, in the hydrodewaxing operation unit, the disadvantages of using the traditional hydroisomerization dewaxing catalyst are that it is difficult to make light and Heavy base components meet both pour point and viscosity index requirements
When traditional hydrocracking catalysts are used, whether whole fraction or broad fraction waxy oil is used as feed, most light and heavy base oil products can meet the requirements of pour point and viscosity index at the same time, but the process produces a large amount of cracked products , the yield of light and heavy base oil is too low, seriously affecting the process economy

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
  • A method for preparing lubricating oil base oil by hydrogenation of high-waxy raw materials
  • A method for preparing lubricating oil base oil by hydrogenation of high-waxy raw materials
  • A method for preparing lubricating oil base oil by hydrogenation of high-waxy raw materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The hydrogenation pretreatment catalyst H1 is used in the hydrogenation pretreatment reactor, and the reaction conditions are 250°C, 4MPa, and the space velocity is 2.0h -1 , the hydrogen-to-oil ratio is 500; the distillation tower 1 separates the heavy oil fraction greater than 550 °C; the hydroisomerization reactor adopts the hydroisomerization catalysts A and B, and the filling method of both is A above B and below, and the filling volume ratio is 2: 1. The reaction conditions are 355°C, 12MPa, and space velocity 0.8h -1 , the ratio of hydrogen to oil is 500; the hydrofinishing reactor adopts hydrofinishing catalyst H2, and the reaction conditions are 220°C, 5MPa, and space velocity 1.0h -1 , Hydrogen oil ratio 500. After the raw materials shown in Table 1 are converted and fractionated by the reaction process, the product yields obtained are shown in Table 2, and the properties of the base oil products are shown in Table 3.

Embodiment 2

[0057] The hydrogenation pretreatment catalyst H1 is used in the hydrogenation pretreatment reactor, and the reaction conditions are 230°C, 4MPa, and the space velocity is 2.0h -1 , the ratio of hydrogen to oil is 600; the distillation tower 1 separates the heavy oil fraction greater than 550 ° C; the hydroisomerization reactor adopts hydroisomerization catalysts A and B, and the filling method of both is A above B and below, and the filling volume ratio is 1: 1. The reaction conditions are 352°C, 13MPa, and space velocity 0.8h -1 , the ratio of hydrogen to oil is 500; the hydrofinishing reactor uses hydrofinishing catalyst H2, and the reaction conditions are 240°C, 6MPa, and space velocity 1.0h -1 , Hydrogen oil ratio 500. After the raw materials shown in Table 1 are converted and fractionated by the reaction process, the product yields obtained are shown in Table 2, and the properties of the base oil products are shown in Table 3.

Embodiment 3

[0059] The hydrogenation pretreatment catalyst H1 is used in the hydrogenation pretreatment reactor, and the reaction conditions are 270°C, 5MPa, and the space velocity is 2.0h -1 , the ratio of hydrogen to oil is 600; the distillation tower 1 separates the heavy oil fraction greater than 550 ° C; the hydroisomerization reactor adopts hydroisomerization catalysts A and B, and the filling method of both is A above B and below, and the filling volume ratio is 1: 2. The reaction conditions are 348°C, 15MPa, and space velocity 0.8h -1 , the ratio of hydrogen to oil is 500; the hydrofinishing reactor uses hydrofinishing catalyst H2, and the reaction conditions are 240°C, 6MPa, and space velocity 1.0h -1 , Hydrogen oil ratio 500. After the raw materials shown in Table 1 are converted and fractionated by the reaction process, the product yields obtained are shown in Table 2, and the properties of the base oil products are shown in Table 3.

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

The invention relates to a method for preparing lubricating oil base oil by hydrogenating high-waxy raw materials. The content is as follows: the high-waxy raw materials first enter the hydrogenation pretreatment reaction zone, and complete the hydrogenation saturation and hydrodesulfurization of non-alkane components in the raw materials. , hydrodenitrogenation and hydrodeoxygenation; the obtained hydropretreated oil enters the vacuum fractionation tower to separate the heavy oil fraction greater than 550°C; the fraction less than 550°C enters the hydroisomerization reaction zone, The hydroisomerization of the pretreated oil is completed on the catalyst; the obtained hydroisomerized oil enters the hydrofinishing reaction zone for further treatment to obtain crude products; the crude products are fractionated by atmospheric / vacuum towers to obtain base oil, diesel oil, Gasoline and other products. Compared with the prior art, the method of the invention can obtain base oil with a higher yield of low pour point and high viscosity index, and has simple process and lower energy consumption.

Description

technical field [0001] The invention relates to a method for hydrogenation conversion of high-waxy raw materials, in particular to a method using Fischer-Tropsch synthetic wax, vacuum distillate oil, propane deasphalted oil, hydrocracking tail oil, wax paste and wax bottom oil as raw materials. Hydroconversion is a method of producing base oil as the main product. Background technique [0002] With the increasing trend of crude oil becoming heavier and inferior and the environmental protection regulations becoming stricter, the performance requirements of refined oil are becoming higher and higher. In this context, the rate of improvement of lubricating oil standards is also accelerating. For the base oils of Class I produced by traditional processes, they can no longer meet the current use needs. Advanced lubricating oil base oil production processes have been developed to produce Class II, Type III and natural gas synthetic oil base oils can realize the expansion and upgr...

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): C10G67/02
CPCC10G67/02C10G2300/4006C10G2300/4012C10G2300/4018C10G2300/202C10G2300/70C10G2400/10
Inventor 王从新田志坚马怀军潘振栋曲炜王冬娥王琳李鹏
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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