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Molybdenum nitride hydrodeoxygenation catalyst as well as preparation method and application thereof

A technology of deoxidation catalyst and molybdenum nitride, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, preparation of liquid hydrocarbon mixtures, etc., can solve the problems of product reduction, instability of active metal catalysts, expensive precious metals, etc. Achieve high selectivity, good hydrodeoxygenation effect, high reactivity effect

Active Publication Date: 2017-12-12
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, sulfided active metal catalysts are unstable, and many by-products are formed
Moreover, sulfide catalysts will introduce sulfur-containing compounds, which will reduce the product. In order to overcome the shortcomings, researchers use noble metals as substitutes, such as supported Rh, Pt, Pd, etc., but noble metals are expensive, which limits its wide application to a certain extent. use

Method used

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  • Molybdenum nitride hydrodeoxygenation catalyst as well as preparation method and application thereof
  • Molybdenum nitride hydrodeoxygenation catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Catalyst preparation

[0028] Accurately weigh the carrier according to the water absorption of mesoporous carbon (MC) (the mesoporous carbon is treated with 2M concentrated hydrochloric acid in advance), and use it as an impregnated carrier after drying and roasting, and dissolve 0.27g ammonium molybdate in pure water to obtain an impregnating solution; The impregnation solution and the impregnation carrier were impregnated with equal volumes, impregnated at room temperature for 12 hours, and dried to obtain the precursor of the catalyst; the obtained precursor was subjected to a multi-stage temperature-programmed reaction; the temperature rate was 5°C / min in a hydrogen atmosphere from The room temperature is raised to 350°C, the temperature is raised from 350°C to 450°C at a temperature rate of 1°C / min, and the final temperature is raised from 450°C to 700°C at a temperature rate of 5°C / min. At this time, hydrogen is converted into ammonia. At the final temperature fo...

Embodiment 2

[0032] Replace 0.27g ammonium molybdate in embodiment 1 with 0.54g ammonium molybdate, and other steps are with embodiment 1.

Embodiment 3

[0034] Replace 0.27g ammonium molybdate in embodiment 1 with 0.82g ammonium molybdate, and other steps are with embodiment 1.

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Abstract

The invention researches a loaded molybdenum nitride catalyst and a preparation method thereof. The preparation method comprises the following steps: with mesoporous carbon (MC) as a carrier, loading an active component onto the carrier according to an equivalent-volume impregnation method, drying to obtain a catalyst precursor, and carbonizing and then nitriding the obtained precursor to obtain the loaded molybdenum nitride catalyst. The loaded molybdenum nitride catalyst prepared by the preparation method has relatively high activity during a hydrodeoxygenation reaction of guaiacol and has relatively high benzene selectivity.

Description

technical field [0001] The invention belongs to the technical field of catalysts, in particular to a catalyst for catalyzing the selective hydrodeoxygenation of guaiacol. Background technique [0002] The non-renewability of fossil fuels and their massive consumption lead to the tightening of energy supply and the continuous deterioration of the ecological environment, which has aroused people's attention to the research and development of environmentally friendly renewable energy. In this context, research on lignocellulosic biomass, which is an important renewable resource, has received increasing attention. Lignin is the main component of lignocellulosic biomass, and is the main by-product of the hydrolysis and fermentation of lignocellulosic biomass to ethanol industry and paper industry. Because it is not fully utilized, it has become an environmental pollutant and seriously polluted the environment. Therefore, from the perspective of environmental protection and sust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C10G3/00C07C1/20C07C15/04
CPCB01J27/24C07C1/20C10G3/44C10G3/50C07C15/04Y02P20/52Y02P30/20
Inventor 鲁墨弘魏斌杜虎李明时
Owner CHANGZHOU UNIV
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