Method for hydrorefining petroleum wax

A technology for hydrorefining and petroleum wax, which is applied in petroleum wax refining and other directions, can solve problems such as unsatisfactory refining effect, and achieve the effects of good hydrogenation activity and simple preparation process.

Active Publication Date: 2012-06-06
PETROCHINA CO LTD
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing wax hydrorefining catalysts have unsatisfactory refining effect when dealing

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
  • Method for hydrorefining petroleum wax

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1

[0022] (1)Al 2 O 3 Carrier preparation

[0023] (a) Macroporous Al with weak surface acidity 2 O 3 Preparation

[0024] Weigh 500g pseudo-boehmite powder, 15g Tianqing powder, 15g citric acid, 50g fatty alcohol ether phosphate, 3wt.%~5wt.% dilute nitric acid 350ml, knead uniformly, dry at 110℃, and roast at 750℃ in air Treat, grind into powder> 150 mesh after cooling.

[0025] (b) Weigh 1000g of pseudo-boehmite powder and add the macroporous Al prepared from (a) 2 O 3 300g, 30g Tianqing powder, 30g citric acid, 100g silica sol (SiO 2 Concentration 30wt.%), 3wt.%~5wt.% dilute nitric acid 700ml, kneaded uniformly, extruded with an extruder, dried at 110°C, and calcined at 600°C in air to obtain Al 2 O 3 Carrier.

[0026] (2) Preparation of W-Mo-Ni-P dipping solution

[0027] Prepare 1000ml solution, weigh 125g molybdenum trioxide (industrial grade) and 60g basic nickel carbonate (industrial grade) into 600ml water, stir well, add 40g phosphoric acid (85wt.%), boil for 2...

Example Embodiment

[0030] Example 2

[0031] (1)Al 2 O 3 Carrier preparation

[0032] (a) Macroporous Al with weak surface acidity 2 O 3 Preparation

[0033] Weigh 500g pseudo-boehmite powder, 15g Tianqing powder, 15g citric acid, 60g polyol phosphate, 3wt.%~5wt.% dilute nitric acid 350ml, knead uniformly, dry at 110℃, and roast at 800℃ in air , After cooling, grind into powder> 150 mesh for later use.

[0034] (b) Weigh 1000g of pseudo-boehmite powder and add the macroporous Al prepared from (a) 2 O 3 350g, 30g Tianqing powder, 30g citric acid, 110g silica sol (SiO 2 Concentration 30%), 3% to 5% dilute nitric acid 730ml, kneaded uniformly, extruded with an extruder, dried at 110°C, and calcined at 600°C under air to obtain Al 2 O 3 Carrier.

[0035] (2) Preparation of W-Mo-Ni-P dipping solution

[0036] Same as Example 1(2).

[0037] (3) Preparation of W-Mo-Ni catalyst

[0038] Weigh 500g Al 2 O 3 As the carrier, measure 360 ​​ml of the solution prepared in step (2), immerse in an equal volume for 30 minut...

Example Embodiment

[0039] Example 3

[0040] (1)Al 2 O 3 Carrier preparation

[0041] Same as Example 1(1).

[0042] (2) Preparation of W-Ni catalyst.

[0043] Weigh 500g Al 2 O 3 Carrier, measure 375ml of ammonium metatungstate and nickel nitrate aqueous solution (where WO 3 The concentration is 70g / 100ml; the concentration of NiO is 20g / 100ml) is immersed in equal volume for 30 minutes, dried at 110°C, and then calcined at 460°C to obtain the catalyst.

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 hydrorefining petroleum wax. According to the invention, alumina is used as a carrier of a hydrorefining catalyst, and an active component in the catalyst is one or two selected from the group consisting of NiO, MoO3 and WO3, wherein, the content of NiO accounts for 2 to 7% of the total weight of the catalyst, and the content of MoO3 and/or WO3 accounts for 20 to 32% of the total weight of the catalyst; the content of SiO2 accounts for 1 to 9% of the total weight of the catalyst, and the content of P2O5 accounts for 1 to 7% of the total weight of the catalyst; the catalyst has a specific surface area of 120 m<2>/g to 190 m<2>/g, a pore volume of 0.30 ml/g to 0.55 ml/g, pores with a pore diameter of 5 nm to 14 nm account for 40 to 70% of the whole pore volume, and pores with a pore diameter of 20 nm to 40 nm account for 20 to 40% of the whole pore volume; the alumina carrier has a double-peak pore structure, the pore wall of a macroporous tunnel has weak surface acidity, and pore wall of a microporous tunnel has strong surface acidity.

Description

technical field [0001] The invention relates to a method for hydrofinishing petroleum wax. Background technique [0002] Paraffin wax and microcrystalline wax are important petroleum products and important raw materials for medicine, daily chemical industry and other fine chemical industries. Paraffin raw materials usually contain a small amount of harmful substances, such as certain aromatic compounds harmful to the human body and certain colored and unstable components. At present, the main method of wax refining is to use hydrorefining method to remove the colored, unstable and harmful substances contained in the raw materials through hydrogenation. [0003] The raw materials for paraffin wax and microcrystalline wax hydrorefining come from vacuum distillate oil or deasphalted oil, which will contain a small amount of macromolecular organic compounds, especially some metal organic compounds. For general hydrogenation catalysts, due to the limitation of pore size, these ...

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): C10G73/44
Inventor 张志华徐伟池赵忠武郭金涛田然于春梅孙发民张文成王刚冯秀芳邴淑秋丛丽茹李淑杰方磊李宝强
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap