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Method for preparing catalysts

A catalyst and carbon nanotube technology, applied in the field of MPA-Ru/CNTs catalyst preparation, can solve the problems of complex production process, reduced cost and high technical requirements, and achieve the effects of simple method, simple operation and increased economic benefits

Inactive Publication Date: 2014-07-30
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All current methods are catalytic hydrogenation of 5-hydroxymethylfurfural converted from the substrate. Such a production process is complex, with many types of equipment, a long process, and high technical requirements. Although the current production rate has been increasing, the cost problem is not so great. Not reduced in essence, not conducive to large-scale production

Method used

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  • Method for preparing catalysts
  • Method for preparing catalysts

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Add 0.025g MPA-Ru / CNTs, MPA-Ru / Al 2 o 3 , MPA-Ru / C and MPA-Ru / MS catalysts. The initial hydrogen pressure was 1.2MPa, the reaction was magnetically stirred at 220°C for 2h, and stirred at room temperature for 20mim before heating. Detected by high performance liquid chromatography, the productive rate of analyzing 2.5-dimethylfuran is as follows in Table 1:

[0041] The MPA-Ru catalyst of table 1 different supports prepares the productive rate of 2.5-dimethylfuran

[0042] catalyst Yield(%) MPA-Ru / CNTs 20 MPA-Ru / Al 2 o 3 0.9 MPA-Ru / C 12

[0043] MPA-Ru / MS 1.3

Embodiment 2

[0045] Add 0.025g catalyst MoO respectively in the reactor that is added with 8.0g n-butanol and 0.27g glucose 3 -Ru / CNTs. At an initial hydrogen pressure of 1.2 MPa, the reaction was magnetically stirred at 220° C. for 2 h, and stirred at room temperature for 20 min before heating. Detected by high performance liquid chromatography, the yield of 2.5-dimethylfuran was analyzed to be 16%.

Embodiment 3

[0047] Add 0.025g PO to the reactor with 8.0g n-butanol and 0.27g glucose X -MoO 3 -Ru / CNTs catalyst. At an initial hydrogen pressure of 1.2 MPa, the reaction was magnetically stirred at 220° C. for 2 h, and stirred at room temperature for 20 min before heating. Detected by high performance liquid chromatography, the yield of 2.5-dimethylfuran was analyzed to be 42%.

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Abstract

The invention discloses a method for preparing 2.5-dimethyl furan through glucose by adopting a single-step method. According to the method, under the condition of suitable temperature and hydrogen pressure, the reaction single-step method is used for catalytically converting and preparing the glucose into the 2.5-dimethyl furan (DMF). The method provided by the invention has the advantages of rich raw materials, high yield, easiness in separating products, simple operation, and excellent prospect in industrial production.

Description

technical field [0001] The invention relates to the field of catalytic conversion of biomass into biomass fuel and pharmaceutical intermediates, and specifically belongs to a method for preparing an MPA-Ru / CNTs catalyst. Background technique [0002] The rapid increase in the demand for limited and non-renewable fossil fuels has brought huge challenges to the current world peace, which also exposes the security risks of China's current dependence on imports for most of its energy, which affects economic growth, and the massive emissions of greenhouse gases have seriously affected There is an urgent need to find new fuels and chemical intermediates that can replace fossil energy. Biomass is a renewable resource. It is the product of photosynthesis of green plants. It has a wide range of sources, is cheap, and will not increase the greenhouse effect. Biofuels and chemical intermediates prepared from biomass as raw materials meet the requirements of sustainable development. In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D307/36
Inventor 吴廷华项群柏一慧吴瑛
Owner ZHEJIANG NORMAL UNIVERSITY