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

Hydrodesulfurization catalyst and preparation method thereof

A hydrodesulfurization and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc. Large, affecting catalyst hydrocracking reaction activity and other problems, to achieve the effect of improving utilization rate, high specific surface area, good low temperature reaction activity and deep desulfurization effect

Active Publication Date: 2015-09-30
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method helps metal components and acidic components to disperse better, the heteropoly acid used is phosphotungstic acid, which shows very strong acidity due to the high content of phosphotungstic acid. Addition, its strong acidity and the reaction process of generating cesium phosphotungstate salt have a great influence on the formation of the carrier silica pore structure, resulting in relatively small specific surface area, pore volume and pore diameter of the catalyst, which affects the hydrocracking of the catalyst Reactivity, and due to the high content of cesium phosphotungstate salt in the catalyst and strong acidity, it is not suitable for hydrodesulfurization reaction

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

Embodiment 1

[0026] (1) Preparation of Mo-Ni-P aqueous solution:

[0027] 9.3 g phosphoric acid H 3 PO 4 (Concentration: 85 wt%) was dissolved in 98 mL of water, then 18 g of molybdenum trioxide and 6.9 g of basic nickel carbonate were added, the temperature was raised to 100 °C, stirred and refluxed for 0.5 h, and the Mo-Ni-P aqueous solution was obtained by filtration. where MoO 3 The concentration of NiO was 0.18 g / mL, that of NiO was 0.04 g / mL, and that of P was 0.025 g / mL.

[0028] (2) Preparation of catalyst:

[0029] Add 5.6 mL of cesium carbonate aqueous solution with a concentration of 0.1 g / mL to 6.5 g of silicotungstic acid aqueous solution, stir well, add 100 mL of Mo-Ni-P solution and stir evenly, then add 320 g of template agent hexadecyltrimethyl Ammonium bromide and 185 g of citric acid were stirred evenly, then 246 mL of ethyl orthosilicate was added, stirred at room temperature for 8.0 h, then heated to 70 °C, and continued to stir until the solution was evaporated to...

Embodiment 2

[0033] (1) Preparation of Mo-Ni-P aqueous solution:

[0034] 5.6 g phosphoric acid H 3 PO 4 (concentration 85wt%) was dissolved in 97 mL of water, then 15 g of molybdenum trioxide and 5.2 g of basic nickel carbonate were added, the temperature was raised to 100 °C, stirred and refluxed for 0.5 h, and the Mo-Ni-P aqueous solution was obtained by filtration. where MoO 3 The concentration of NiO was 0.15 g / mL, that of NiO was 0.03 g / mL, and that of P was 0.015 g / mL.

[0035] (2) Preparation of catalyst:

[0036] Add 2.7 mL of cesium carbonate aqueous solution with a concentration of 0.1 g / mL into 4.78 g of silicotungstic acid aqueous solution, stir well, add 100 mL of Mo-Ni-P solution and stir evenly, then add 262 g of template agent hexadecyltrimethyl bromide Ammonium chloride and 151 g of citric acid were stirred evenly, then 278 mL of ethyl orthosilicate was added, stirred at room temperature for 8.0 h, then heated to 70 °C, and continued to stir until the solution was eva...

Embodiment 3

[0039] (1) Preparation of Mo-Ni-P aqueous solution:

[0040] 3.7 g phosphoric acid H 3 PO 4 (Concentration: 85wt%) was dissolved in 97 mL of water, then 10 g of molybdenum trioxide and 3.4 g of basic nickel carbonate were added, the temperature was raised to 100 °C, stirred and refluxed for 0.5 h, and the Mo-Ni-P aqueous solution was obtained by filtration. where MoO 3 The concentration of NiO was 0.1 g / mL, that of NiO was 0.02 g / mL, and that of P was 0.01 g / mL.

[0041] (2) Preparation of catalyst:

[0042] Add 2.2 mL of cesium carbonate aqueous solution with a concentration of 0.1 g / mL into 3.82 g of phosphotungstic acid aqueous solution, stir well, add 100 mL of Mo-Ni-P solution and stir evenly, then add 248 g of template agent hexadecyltrimethyl bromide Ammonium chloride and 143 g of citric acid were stirred evenly, then 309 mL of ethyl orthosilicate was added, stirred at room temperature for 8.0 h, then heated to 70 °C, and continued to stir until the solution was eva...

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

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a hydro-desulfurization catalyst and a preparation method thereof. The catalyst comprises an active metal component composed of Mo and Ni and / or Co, an auxiliary agent P, and a little amount of alkali metal heteropoly acid salts. The preparation method comprises the following steps: mixing an alkali metal salt solution with a heteropoly acid solution to carry out reactions, after the reactions, adding a solution containing Mo, Ni and / or Co, and P, adding a template and an organic acid, then introducing a silicon source into the solution, evaporating, drying, and burning so as to obtain the catalyst. The catalyst prepared by the method mentioned above has the advantages of large specific surface area, large pore volume, large pore diameter, and proper acidity; and furthermore, the active metal component can better cooperate with heteropoly acid salts to create a deep desulfurization effect. The catalyst is used to catalyze hydro-desulfurization reactions of lightweight distillate oil, has a good low-temperature reaction activity and deep desulfurization effect, and does not cause the over-cracking of the lightweight distillate oil.

Description

technical field [0001] The invention relates to a hydrodesulfurization catalyst and a preparation method thereof, in particular to a light distillate oil hydrodesulfurization catalyst and a preparation method thereof. Background technique [0002] As the sulfur content in vehicle fuel standards decreases year by year, hydrodesulfurization has become the main way to process inferior raw materials to produce clean fuel. The activity of hydrodesulfurization catalyst determines the economic benefit of the whole hydrodesulfurization process. Highly active hydrodesulfurization catalysts can produce low-sulfur products under moderate conditions, thereby prolonging the operating cycle and saving operating costs. [0003] Hydrodesulfurization catalysts usually use Group VIB and Group VIII metals as active components, and various additives can be added to improve catalyst activity. During the preparation of the catalyst, the uniform dispersion of each component has an important impa...

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): B01J27/19B01J35/10C10G45/08
Inventor 金浩孙素华朱慧红刘杰杨光
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