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

Paraffin hydrogenation refining catalyst and its preparation method

A technology for hydrorefining and catalyst, which is applied in petroleum wax refining and other directions, can solve the problems of insufficient metal dispersion and low hydrorefining activity, and achieve the effects of good dispersion state, improved activity stability and high mechanical strength.

Active Publication Date: 2006-05-10
CHINA PETROLEUM & CHEM CORP +1
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the amount of metal dispersed on the carrier is not high enough, only 12.5-19.1m% (based on MoO 3 meter), so the activity of hydrofining is not high
Although the existing paraffin hydrofining catalysts can meet the requirements for processing general paraffin raw materials, for processing certain raw material waxes with high metal content and special properties, due to many reasons such as small pore size, the current paraffin hydrofining catalysts are still helpless

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

preparation example Construction

[0025] The main points of the preparation of the Mo-Ni-P solution are: according to the concentration requirements of the solution, the required phosphoric acid is added to water to prepare an aqueous phosphoric acid solution. Add the above phosphoric acid aqueous solution to the required amount of molybdenum oxide. The system was heated to a slight boil under stirring, and heated until most of the molybdenum oxide was dissolved. Lower the system temperature to 60-70°C, and add the required amount of basic nickel carbonate. Stir and heat up again to a slight boil, and heat until the basic nickel carbonate is completely dissolved. Finally, slowly heat and evaporate to remove excess water and concentrate the solution to obtain a high-concentration and high-stability Mo-Ni-P solution.

[0026] The application of the catalyst of the present invention in the hydrofining of paraffin raw materials, especially the application in the hydrofining of paraffin raw materials containing c...

Embodiment 1

[0029] (1). Al 2 o 3 Preparation of vector

[0030] (a). Macroporous Al 2 o 3 preparation

[0031] Take 50g of pseudo-thin alumina powder, add 100ml of distilled water to make a paste and place it at 40°C for 24 hours. It was then dried at 110°C for 2 hours and calcined at 940°C for 2 hours. After cooling to room temperature in the air, grind it into >150 mesh powder for later use.

[0032] (b). Take 200g of pseudo-thin water alumina powder by weighing, add macroporous Al prepared by (a) 2 o 3 28.0g, mix, then add 160ml 3% HNO 3 and a moderate amount of H 2 O. Mix well, knead into a plastic shape and extrude into clover strips (orifice φ=1.4mm). After air drying overnight, it was dried at 110°C for 2 hours.

[0033] Place the dried sample in a high-temperature furnace, raise the temperature to 200°C at a rate of 3°C per minute, and roast at this temperature for 1.0 hour. Then, the temperature was raised to 410° C. at a rate of 3° C. per minute, and was roasted at...

Embodiment 2

[0039] (1). Al 2 o 3 The preparation of the vector is the same.

[0040] (a). Same as Example (1-a).

[0041] (b). Same as Example (1-b), but macroporous Al 2 o 3 The amount added was 34.0 g. The third-stage calcination temperature is 700°C.

[0042] (2), preparation of Mo-Ni-P solution

[0043] With embodiment 1 (2).

[0044] (3), MoNiP / Al 2 o 3 Catalyst preparation

[0045] With embodiment 1 (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 provides a refining catalysis for ceresin wax hydrogenation and its method. First, make out new carrier Al203 which is characterized on being hydrogenation refining catalysis of high activity. At the same time, the bore diameter of said Al203 is larger, and the bore distribution is much assembled, average pore size is between 10 and 15 nm, the rate of the bores whose diameter is lager than 15 nm could be more than 20%, while the mechanical strength is larger than 160N / cm(ªŽú¢1.2mm strip form)íú Therefore, it is suitable to be hydrogenation refining catalysis carrier for making special raw ceresin wax. Comparing with present ceresin wax hydrogenation refining catalysis, said invention has projecting adaptability when dealing with raw ceresin wax and its decolouration effect, demetal rate, aromatic hydrocarbon saturation are both increased appreciablely.

Description

technical field [0001] The invention relates to a paraffin hydrorefining catalyst and a preparation method thereof, in particular to a hydrorefining catalyst specially used for special paraffin wax raw materials and a preparation method thereof. Background technique [0002] Paraffin wax raw materials usually contain a small amount of harmful substances, such as certain aromatic compounds harmful to the human body (single-ring aromatic hydrocarbons, polycyclic and fused-ring aromatic hydrocarbons such as 3,4-benzopyrene, etc.) and certain colored and unstable components. The main purpose of paraffin hydrofining is to remove the colored, unstable and harmful substances contained in paraffin raw materials through hydrogenation. Therefore, there is a need for an efficient catalyst. The catalyst is required to have both high hydrogenation and impurity removal performance and high ability to remove aromatic organic compounds. [0003] Paraffin hydrorefining catalysts mainly use...

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 徐友明何金海罗锡辉
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