Unlock instant, AI-driven research and patent intelligence for your innovation.

Lube hydroisomerization system

A technology of lubricating oil and catalyst, which is applied in the field of lubricating oil hydroisomerization system, can solve the problems of turbidity, difficult conversion and unclearness of lubricating oil products.

Inactive Publication Date: 2005-11-30
EXXON RES & ENG CO
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Few catalysts have been reported to effectively catalytically hydroisomerize and dewax paraffins to lower pour point lubricating oils
Also, such catalysts have difficulty converting materials with high molecular weight components, resulting in lubricating oil products that often appear cloudy (or not clear)

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
  • Lube hydroisomerization system
  • Lube hydroisomerization system
  • Lube hydroisomerization system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] raw material. Hydrotreated SASOL was obtained from Moore and Munger, Inc., (Shelton, CT) TM PARAFLINT TM C80 wax (C80) material and was used without additional pretreatment. C80 waxes are mixtures of predominantly linear paraffins with very low levels of olefins and oxygenates.

[0051] SASOL TM There are three commercial grades of wax on the market:

[0052] PARAFLINT TM H1, 700°F+ (371°C+) full range wax; PARAFLINT TM C80 and C105, 700-1100°F (371-593°C) and 1100°F+ (593°C+) distillation cuts, respectively. The molecular weight distribution (in terms of boiling point) of the waxes is briefly indicated in Table 3.

[0053] table 3

[0054] wax material

Embodiment 2

[0056] Preparation of Pt / β catalysts. The Pt / beta catalyst was prepared by extruding an aqueous grind mixture or paste containing 65 parts beta zeolite and 35 parts alumina (dry weight basis). After drying, the catalyst containing zeolite beta was sintered at 900°F (482°C) in nitrogen and exchanged with sufficient ammonium nitrate at room temperature to remove residual sodium in the zeolite channels. The extrudates were then washed with deionized water and sintered at 1000°F (538°C) in air. After air sintering, the 65% beta zeolite / 35% alumina extrudate was steamed at 1020°F (549°C) to reduce the alpha value of the sintered catalyst to less than 10. The 65% low-acidity β / 35% alumina catalyst blown with steam is ion-exchanged with tetraaminoplatinum chloride solution under ion-exchange conditions to uniformly prepare a catalyst containing 0.6% Pt. After washing with deionized water to remove residual chloride, the catalyst was dried at 250°F (121°C) before final air sintering...

Embodiment 3

[0058] Preparation of Pt / ZSM-48 catalyst. The Pt / ZSM-48 catalyst was prepared by extruding an aqueous mill mixture or paste containing 65 parts of ZSM-48 and 35 parts of alumina (dry basis). After drying, the ZSM-48 containing catalyst was sintered at 900°F (482°C) in nitrogen and exchanged with sufficient ammonium nitrate at room temperature to remove residual sodium in the zeolite channels. The extrudates were then washed with deionized water and sintered at 1000°F (538°C) in air. After air sintering, the 65% ZSM-48 / 35% alumina catalyst was impregnated with tetraaminoplatinum nitrate solution under incipient wetness condition to uniformly prepare the catalyst containing 0.6% Pt. Finally the catalyst was dried at 250°F (121°C) and then air sintered at 680°F (360°C).

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 present invention relates to a process for converting wax with a heavy component to high quality lube basestocks using a unidimensional intermediate pore molecular sieve with near circular pore structures having an average diameter of 0.50 nm to 0.65 nm wherein the difference between the maximum diameter and the minimum is <= 0.05 nm followed by a molecular sieve Zeolite Beta catalyst. Both catalysts comprise one or more Group VIII metals. For example, a cascaded two-bed catalyst system consisting of a first bed Pt / ZSM-48 catalyst followed by a second bed Pt / Beta catalyst improves processing of heavy lubes.

Description

field of invention [0001] The present invention relates to a process for converting waxy feedstocks into low viscosity lubricating oil basestocks. Background of the invention [0002] It is economically significant to convert waxes into high quality lube basestocks, especially basestocks whose performance and efficacy are comparable or superior to those of polyalphaolefins (PAOs). Wax refining relies heavily on advanced wax isomerization technology, which selectively converts linear paraffins to multi-branched isoparaffins. [0003] Methods for converting waxes to paraffinic lubricating oil base stocks are known. A common method is a two-step process, in which the wax is hydroisomerized to a waxy isoparaffin mixture in the first step, followed by solvent or catalytic dewaxing of the waxy isoparaffin mixture in a second step to remove the remaining wax And achieve the target lubricant pour point. [0004] Previously disclosed hydroisomerization catalysts, such as Pt suppor...

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
IPC IPC(8): C10G45/62C10G45/64C10G65/04
CPCC10G45/62C10G2400/10
Inventor 蒋兆中兰德尔·D·帕特里奇
Owner EXXON RES & ENG CO
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