Supported mesoporous Ni catalyst for ethyl acetate hydrodeoxygenation and preparation method of catalyst

A hydrodeoxygenation and ethyl acetate technology, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, and hydrocarbon production from oxygen-containing organic compounds, etc., can solve the problem of underdeveloped pores and small specific surface area , Irregular pore size distribution, etc.

Inactive Publication Date: 2016-05-25
CHONGQING TECH & BUSINESS UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

Conventional metal catalysts have shortcomings such as small specific surface area, underdeveloped pores, and irregular pore size distribution, which lead to the incomplete exploration of the catalytic potential of metals. With the tremendous development of silicon-based materials, materials with various pore structures have been developed one after another, such as : KIT-6, SBA-15 and SBA-16, etc., they provide unparalleled conditions for supported catalysts, making them have super large specific surface area and high dispersion, and become the key research direction of scientific researchers in recent years

Method used

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  • Supported mesoporous Ni catalyst for ethyl acetate hydrodeoxygenation and preparation method of catalyst
  • Supported mesoporous Ni catalyst for ethyl acetate hydrodeoxygenation and preparation method of catalyst
  • Supported mesoporous Ni catalyst for ethyl acetate hydrodeoxygenation and preparation method of catalyst

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Embodiment 1

[0022] The preparation method of the supported Ni catalyst of the present embodiment may further comprise the steps:

[0023] Weigh 0.25gNi(NO 3 ) 2 ·6H 2 Dissolve O in 15-20mL of distilled water, add 1-2 drops of nitric acid dropwise, place it on a magnetic stirrer and stir evenly, add 0.45g of KIT-6, stir evenly, place in a constant temperature water bath at 50-60°C and stir. The raw material is obtained until the water is completely evaporated, and the obtained raw material is dried at a constant temperature at 60° C. for 10-15 hours, and then calcined at 550° C. for 3-4 hours. Make described 10%Ni / KIT-6 catalyst, change Ni(NO 3 ) 2 ·6H 2 The ratio of O to KIT-6, respectively prepared 15% Ni / KIT-6, 20% Ni / KIT-6, 25% Ni / KIT-6, 30% Ni / KIT-6, 35% Ni / KIT-6 catalyst. Mesoporous SiO 2 Instead of KIT-6 and varying the loading, 10% Ni / SiO was made respectively 2 , 15% Ni / SiO 2 , 20% Ni / SiO 2 catalyst. Replace KIT-6 with white carbon black and change the loading capacity...

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Abstract

The invention discloses a supported mesoporous Ni catalyst for ethyl acetate hydrodeoxygenation. Metal Ni serves as the catalyst active component, and SiO2 or white carbon black serves as a carrier. The carrier adopts SiO2 with a mesoporous structure preferably, the SiO2 with a mesoporous structure adopts mesoporous KIT-6 preferably, and the capacity of the meal Ni in the catalyst is 15-30%. The invention further discloses a method for preparing the catalyst. By means of an impregnation method, the capacity of the Ni is changed, the high-performance catalyst for preparing ethane through ethyl acetate hydrodeoxygenation is prepared, complete conversion of ethyl acetate is achieved at lower temperature, and meanwhile the selectivity reaches 95% or above.

Description

technical field [0001] The invention relates to a catalyst for hydrodeoxygenation of ethyl acetate, in particular to a supported mesoporous Ni catalyst for hydrodeoxygenation of ethyl acetate and a preparation method thereof. Background technique [0002] Ethyl acetate is one of the most widely used fatty acid esters. At present, there are many methods for producing ethyl acetate, such as direct esterification, acetaldehyde condensation, ethylene addition and ethanol dehydrogenation, etc., and the production technology is mature. , The product has high purity. The average annual growth rate of domestic production capacity is about 14%, and the average annual growth rate of output is about 10%, resulting in a situation of oversupply. How to solve the problem of overcapacity is worth our deep thinking. With the vigorous development of the hydrogen production industry, the hydrogen production technology and hydrogen storage technology in various countries in the world have bee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755C07C9/06C07C1/22
CPCB01J23/755C07C1/22C07C9/06
Inventor 周桂林陈爽张贤明焦昭杰谢红梅柳云骐熊昆
Owner CHONGQING TECH & BUSINESS UNIV
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