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

Coal cinder supported solid base catalyst and preparation method and use thereof

A solid base catalyst and supported technology, applied in chemical instruments and methods, physical/chemical process catalysts, fatty acid esterification, etc., can solve the problems of long transesterification reaction time, large alcohol-oil mole, high reaction temperature, etc., to achieve The separation is simple and easy, the yield is increased, and the effect of accelerating the transesterification reaction

Inactive Publication Date: 2010-07-21
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the commonly used solid base catalyst catalyzed transesterification mainly has the following disadvantages at present: alcohol oil molar ratio is relatively large (more common in 15: 1), the transesterification reaction time is longer (more common in 2h), and the reaction temperature is higher (more common in 80 ℃ above), the esterification rate is rarely above 95%
However, there is no report on the relevant research on coal slag as a catalyst carrier.

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

[0017] Weigh 35 g of potassium carbonate in a beaker, dissolve it in 100 mL of deionized water, and stir to fully dissolve it to obtain a potassium carbonate solution. Weigh 30 g of cinder carrier with a particle size of 5 mm to 7 mm that has been sieved and dried, and immerse it in the above-mentioned potassium carbonate aqueous solution, filter after reaching the adsorption equilibrium, and generally leave it to stand for 1 hour or more to reach the adsorption equilibrium. In this embodiment, it is After standing still for 12 hours, it was filtered again, and the solid sample obtained by filtration was dried and calcined at 600° C. for 1 hour to obtain a cinder-supported solid alkali catalyst.

[0018] 8 g of the catalyst, 0.6 mol of methanol, and 0.05 mol of soybean oil were sequentially added into a 250 ml three-necked flask, and stirred and refluxed at 65° C. for 1 h. After the reaction is completed, the remaining methanol is evaporated for recovery, and the reaction solu...

Embodiment 2

[0020] Weigh 50 g of potassium carbonate and dissolve it in 100 mL of deionized water, and stir to fully dissolve it to obtain potassium carbonate solution. Weigh 40 g of sieved and dried cinder carrier with a particle size of 2 mm to 5 mm and immerse it in the above potassium carbonate aqueous solution, let it stand for 24 hours, filter it, dry the solid sample, and then calcinate it at 500 ° C for 5 hours to obtain a cinder-loaded solid base catalyst.

[0021] 8 g of the catalyst, 0.6 mol of methanol, and 0.05 mol of rapeseed oil were sequentially added into a 250 ml three-necked flask, and stirred and refluxed at 65° C. for 1 h. After the reaction is completed, the remaining methanol is evaporated for recovery, and the reaction solution is filtered while it is hot, and the solid base catalyst is separated for recovery. Then the filtrate was moved to a separatory funnel and left to stand for 10 min. After the layering was stable, the product in the upper layer and the crude...

Embodiment 3

[0023] Weigh 90 g of potassium carbonate and dissolve it in 100 mL of deionized water, and stir to fully dissolve it to obtain potassium carbonate solution. Weigh 50 g of sieved and dried cinder carrier with a particle size of 1-2 mm and immerse it in the above potassium carbonate aqueous solution, let it stand for 6 hours, filter it, dry the solid sample, and then calcinate it at 400°C for 3 hours to obtain a cinder-loaded solid base catalyst.

[0024] 8 g of the above catalyst, 0.6 mol of methanol, and 0.05 mol of tung oil were sequentially added into a 250 ml three-necked flask, and stirred and refluxed at 65° C. for 1 h. After the reaction is completed, the remaining methanol is evaporated for recovery, and the reaction solution is filtered while it is hot, and the solid base catalyst is separated for recovery. Then the filtrate was moved to a separatory funnel and left to stand for 10 min. After the layering was stable, the product in the upper layer and the crude glycer...

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
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a coal cinder supported solid base catalyst and a preparation method and use thereof. The coal cinder supported solid base catalyst is prepared by soaking a dried coal cinder carrier with a certain particle diameter in aqueous solution of K2CO3 with the concentration of 0.3 to 1 g / ml, and filtering, drying and calcining after adsorption equilibrium. The coal cinder supported solid base catalyst can efficiently catalyze various vegetable oils to produce biodiesel under mild reaction conditions (normal pressure and the temperature of less than 70 DEG C). The yield of the coal cinder supported solid base catalyst can reach over 93 percent and over 99 percent maximally. The coal cinder supported solid base catalyst has the advantages of having simple preparation method and low cost, facilitating continuous production of the biodiesel, saving the production cost, reducing the operating cost, and simplifying the production process flow and the purification process of the biodiesel.

Description

technical field [0001] The invention relates to a coal slag-loaded solid base catalyst, a preparation method thereof and the use of catalyzing the transesterification reaction between vegetable oil (fatty acid glyceride) and methanol to prepare biodiesel at the boiling point of methanol. Background technique [0002] Biodiesel refers to fatty acid methyl esters prepared by transesterification of renewable animal and vegetable oils with short-chain alcohols (methanol or ethanol). It is a clean and renewable energy that can replace petrochemical diesel. Biodiesel does not contain aromatic hydrocarbons and has very low sulfur content. Compared with petrochemical diesel, the emission of major pollutants is reduced, and the exhaust emission indicators and European standards; more importantly, biodiesel is renewable and has lubricating properties. Good, full combustion, safe transportation and use. [0003] At present, the main production methods of biodiesel are blending method,...

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): B01J27/232C11C3/10C10L1/02
CPCY02E50/13Y02E50/10
Inventor 刘慧苏玲燕
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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