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

Catalyst for selective oxidation desulfurization of fuel oil, preparation method and application thereof

A technology for selective oxidation and fuel oil, applied in the field of chemical materials, it can solve the problems of waste of oxidant, low fuel desulfurization efficiency, and difficulty in achieving deep removal of organic sulfides, and achieves the effect of saving dosage, not easy to oxidize, and strong affinity.

Active Publication Date: 2016-08-31
PETROCHINA CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the catalytic oxidation desulfurization process of fuel oil, aromatics and olefinic hydrocarbons in fuel oil are also easily oxidized, resulting in low desulfurization efficiency of fuel oil, and a large waste of oxidant, making it difficult to achieve the purpose of deep removal of organic sulfur compounds

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

[0036] This embodiment provides a catalyst for selective oxidation desulfurization of fuel oil and a preparation method thereof. The preparation method specifically includes the following steps:

[0037] Dissolve 0.6g of LiBr in 20mL of N,N-dimethylacetamide, weigh 4.0g of polybenzimidazole and dissolve it in the above solution, and reflux for 4h under a nitrogen atmosphere at 60°C, filter out the insoluble matter, and take solution;

[0038] Add 0.21g of phosphotungstic acid to the solution, stir at 50°C for 3h to obtain a homogeneous solution;

[0039] Transfer the homogeneous solution to an electrospinning device for electrospinning. The electrospinning conditions are: voltage 22kV, flow rate 0.4mL / h, and the distance between the needle tip and the current collector plate is 20cm to obtain nanofibers;

[0040] Wash the nanofibers with a mixed solution of acetonitrile and methanol (the volume ratio of acetonitrile and methanol is 1:1), remove N,N-dimethylacetamide solvent a...

Embodiment 2

[0043] This embodiment provides a catalyst for selective oxidation desulfurization of fuel oil and a preparation method thereof. The preparation method specifically includes the following steps:

[0044] Dissolve 0.8g of LiBr in 20mL of N,N-dimethylacetamide, weigh 4.0g of polybenzimidazole and dissolve it in the above solution, reflux at 70°C for 4h under a nitrogen atmosphere, filter out the insoluble matter, and take solution;

[0045] Add 0.44g of phosphomolybdic acid to the solution, and stir at 50°C for 3h to obtain a homogeneous solution;

[0046] Transfer the homogeneous solution to an electrospinning device for electrospinning. The electrospinning conditions are: voltage 20kV, flow rate 0.4mL / h, and the distance between the needle tip and the current collector plate is 20cm to obtain nanofibers;

[0047] Wash the nanofibers with a mixed solution of acetonitrile and methanol (the volume ratio of acetonitrile and methanol is 1:1) to remove N,N-dimethylacetamide solvent a...

Embodiment 3

[0050] This embodiment provides a catalyst for selective oxidation desulfurization of fuel oil and a preparation method thereof. The preparation method specifically includes the following steps:

[0051] Dissolve 0.7g of LiBr in 20mL of N,N-dimethylacetamide, weigh 4.0g of polybenzimidazole and dissolve in the above solution, reflux at 60°C for 4h under a nitrogen atmosphere, filter out the insoluble matter, and take solution;

[0052] Add 0.71g of silicotungstic acid to the solution, stir at 50°C for 3h to obtain a homogeneous solution;

[0053] Transfer the uniform solution to an electrospinning device for electrospinning. The electrospinning conditions are: voltage 25kV, flow rate 0.4mL / h, and the distance between the needle tip and the current collector plate is 20cm to obtain nanofibers;

[0054] Wash the nanofibers with a mixed solution of acetonitrile and methanol (the volume ratio of acetonitrile and methanol is 1:1) to remove N,N-dimethylacetamide solvent and impurit...

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
pore sizeaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention provides a catalyst for selective oxidation desulfurization of fuel oil as well as a preparation method and an application of the catalyst. The catalyst for selective oxidation desulfurization of fuel oil comprises the following raw materials: 80wt%-95wt% of polybenzimidazole and 5wt%-20wt% of heteropoly acid, wherein the total amount of the raw materials of the catalyst for selective oxidation desulfurization of fuel oil is 100wt%. The invention also provides a preparation method of the catalyst for selective oxidation desulfurization of fuel oil. The catalyst for selective oxidation desulfurization of fuel oil prepared by the method, has the advantages of high catalytic desulfurization efficiency when the catalyst is used for catalyzing the selective oxidation desulfurization of fuel oil and can also be recycled.

Description

technical field [0001] The invention relates to a catalyst and its preparation method and application, in particular to a fuel oil selective oxidation desulfurization catalyst, its preparation method and application, and belongs to the field of chemical materials. Background technique [0002] Sulfur-containing compounds in fuel oil are important pollution sources of urban air. With the continuous improvement of people's environmental protection requirements in the 21st century, countries around the world have made strict regulations on the sulfur content in fuel oil. The standard for content less than 10ppm. With the continuous upgrading of my country's emission standards and finally in line with international standards, it is imminent to improve the quality of fuel products. [0003] Traditional hydrodesulfurization technology has very limited ability to remove high content of benzothiophene, dibenzothiophene and their derivatives in fuel oil, mainly because these sulfide...

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): B01J31/18B01J31/16C10G27/12
Inventor 梅平颜学敏
Owner PETROCHINA CO LTD
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