Check patentability & draft patents in minutes with Patsnap Eureka AI!

Hydrodesulfurization catalyst and preparation method thereof

A hydrodesulfurization and catalyst technology, applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of limited inhibitory effect on olefin saturation activity

Active Publication Date: 2021-04-27
CHINA PETROLEUM & CHEM CORP +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that adding activated carbon in this way has limited inhibitory effect on olefin saturation activity

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
  • Hydrodesulfurization catalyst and preparation method thereof
  • Hydrodesulfurization catalyst and preparation method thereof
  • Hydrodesulfurization catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]Dissolve 16.8g of citric acid in 90mL of clean water, add 12.5g of cobalt carbonate, boil to dissolve, after cooling, add 25% (weight) ammonia water to 130mL, add 13.3g of ammonium molybdate to the above solution, dissolve and use 25 % ammonia water to adjust the volume of the solution to 150mL, and keep it airtight. Put 200g of the carrier in a rolling pot, spray and soak it with 150mL of molybdenum and cobalt ammonium solution, after the solution is sprayed, continue to rotate in the rolling pot for 30 minutes, then place it for 18 hours, dry at 110°C for 3 hours, and then Roast at 500°C at a rate of 200°C / hour for 3 hours, then place it in 600mL of hexadiene solvent for 4h, then heat at 200°C for 4h, heat up to 300°C for 24h, then heat up to 400°C for 10h The first-stage oxidation state catalyst A was prepared by heat treatment. The oxidation state catalyst A was vulcanized by the internal vulcanization process. The amount of dimethyl disulfide introduced was 120% of...

Embodiment 2

[0036] Dissolve 9.4g of citric acid in 95mL of clean water, add 7.0g of cobalt carbonate, boil to dissolve, after cooling, add 25% (weight) ammonia water to 130mL, add 8.3g of ammonium molybdate to the above solution, dissolve and use 25 % ammonia water to adjust the volume of the solution to 150mL, and keep it airtight. Put 200 g of the carrier in a rolling pot, spray and immerse it with 150 mL of molybdenum and cobalt ammonium solution, after the solution is sprayed, continue to rotate in the rolling pot for 30 minutes, then place it for 18 hours, and dry it at 110°C for 3 hours. Then heat up to 500°C at a rate of 200°C / hour and roast for 3 hours, then place it in 600mL hexadiene solvent for immersion for 4h, then heat at 200°C for 4h, heat up to 300°C for 24h, then heat up to 400°C for 10h A heat treatment is carried out to obtain a first-stage oxidation state catalyst B. The first-stage oxidation state catalyst B was vulcanized by the internal vulcanization process. The a...

Embodiment 3

[0038] Dissolve 21.7g of citric acid in 65mL of clean water, add 16.1g of cobalt carbonate, boil to dissolve, after cooling, add 25% (weight) ammonia water to 135mL, add 21.0g of ammonium molybdate to the above solution, dissolve and use 25 % ammonia water to adjust the volume of the solution to 150mL, and keep it airtight. Put 200 g of the carrier in a rolling pot, spray and immerse it with 150 mL of molybdenum and cobalt ammonium solution, after the solution is sprayed, continue to rotate in the rolling pot for 30 minutes, then place it for 18 hours, and dry it at 110°C for 3 hours. Then heat up to 500°C at a rate of 200°C / hour and roast for 3 hours, then place it in 600mL hexadiene solvent for immersion for 4h, then heat at 200°C for 4h, heat up to 300°C for 24h, then heat up to 400°C for 10h A heat treatment is carried out to prepare a catalyst C in an oxidation state. The first-stage oxidation state catalyst C was vulcanized by the internal vulcanization process. The amo...

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
strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a hydrodesulfurization catalyst and a preparation method thereof. On the basis of the total weight of the catalyst, MoS2 accounts for 1.0%-19.0%, Co9S8 accounts for 0.1%-7.0%, MoO3 accounts for 1.0%-10.0%, and the carbon content is 0.5%-18.0%. The carrier is an inorganic refractory oxide, and the content of the carrier is 56%-97.4%. The preparation method of the hydrodesulfurization catalyst comprises the following steps: (1) impregnating a carrier with an impregnation liquid I containing active metals Co and Mo, drying and roasting the impregnated carrier, performing saturated impregnation with liquid olefin, performing heat treatment, and performing vulcanization treatment; and (2) impregnating the sulfide material obtained in the step (1) with an impregnation liquid II containing an active metal Mo, and drying to obtain the hydrodesulfurization catalyst. The active components of the hydrodesulfurization catalyst have different existence forms, and the catalyst has high activity, gasoline hydrogenation selectivity and high stability in the gasoline selective hydrodesulfurization process.

Description

technical field [0001] The invention relates to a hydrodesulfurization catalyst and a preparation method thereof. Background technique [0002] In order to protect the environment, countries all over the world are restricting the emission of harmful substances in vehicle exhaust more and more strictly. Reducing the sulfur content in gasoline will effectively reduce the emission of harmful substances in automobile exhaust. Therefore, the sulfur content of clean gasoline is getting lower and lower all over the world. Reducing the sulfur content of gasoline has become a major trend in the world, and it is also an important topic for the advancement of gasoline quality technology in my country. [0003] Compared with foreign countries, the composition of gasoline in my country is very different. Catalyzed cracked gasoline (FCC gasoline) accounts for about 80% of gasoline in most refining and chemical enterprises in my country, and the proportion of other gasoline is very smal...

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 Applications(China)
IPC IPC(8): B01J27/051B01J37/02C10G45/08
CPCB01J27/0515B01J37/0205C10G45/08C10G2300/202B01J35/638B01J35/635B01J35/633B01J35/615Y02A50/20
Inventor 郭蓉姚运海王震杨成敏刘丽段为宇周勇丁莉孙进郑步梅
Owner CHINA PETROLEUM & CHEM CORP
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