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Molybdenum sulfide catalyst and preparation thereof, and applications of molybdenum sulfide catalyst in hydrogenation degradation of aromatic phenol and ether compounds

A technology for hydrogenation degradation of ether compounds, applied in the field of catalytic conversion of biomass derivatives, can solve the problems of low yield and high price of aromatic products, and achieve the effects of low price, easy preparation and good application prospects

Inactive Publication Date: 2016-12-21
TIANJIN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems in the prior art, the present invention provides a method for catalytic hydrogenation of molybdenum sulfide catalysts to degrade aromatic phenols and ethers to produce high value-added fine chemicals with aromatic structures, which solves the problem of precious metal catalysts in the prior art. The problem of low yield and high price of aromatic products in the hydrodegradation reaction of lignin

Method used

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  • Molybdenum sulfide catalyst and preparation thereof, and applications of molybdenum sulfide catalyst in hydrogenation degradation of aromatic phenol and ether compounds
  • Molybdenum sulfide catalyst and preparation thereof, and applications of molybdenum sulfide catalyst in hydrogenation degradation of aromatic phenol and ether compounds
  • Molybdenum sulfide catalyst and preparation thereof, and applications of molybdenum sulfide catalyst in hydrogenation degradation of aromatic phenol and ether compounds

Examples

Experimental program
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Effect test

Embodiment 1

[0023] MoS2 Preparation of / AC catalyst: Dissolve 0.92g of ammonium heptamolybdate tetrahydrate in 9mL of deionized water, add 4.5g of activated carbon after completely dissolving, impregnate at room temperature for 24h, dry in an oven at 120°C for 12h, and turn the catalyst precursor to Put it into a tube furnace, bake at 450°C for 3h under Ar atmosphere, cool to room temperature, and then perform temperature-programmed vulcanization. The specific vulcanization process is: heat up from room temperature at 5°C / min to 400°C, then keep it for 4h, and cool under Ar atmosphere to room temperature, H 2 S / H 2 The total flow rate is 60mL / min, H 2 S volume fraction of 10% yielded MoS with 10 wt% Mo loading 2 / AC Catalyst.

Embodiment 2

[0025] MoS 2 / γ-Al 2 o 3 Preparation of the catalyst: the preparation process is similar to Example 1, the difference is that the support is replaced by γ-Al 2 o 3 , during calcination, the precursor was transferred to a muffle furnace under an air atmosphere, and then transferred to a tube furnace for temperature-programmed vulcanization to obtain MoS with a Mo loading of 10wt%. 2 / γ-Al 2 o 3 catalyst.

Embodiment 3

[0027] MoS 2 / SiO 2 Preparation of catalyst: the preparation process is similar to Example 2, except that the carrier is replaced by SiO 2 , to obtain MoS with a Mo loading of 10 wt% 2 / SiO 2 catalyst.

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Abstract

The invention discloses a molybdenum sulfide catalyst and a preparation method thereof, and applications of the molybdenum sulfide catalyst in high-added value aromatic fine chemical product production reactions through hydrogenation degradation of aromatic phenol and ether compounds. According to the molybdenum sulfide catalyst I, molybdenum sulfide is adopted as a main active component, one or a plurality of materials selected from nickel, cobalt, iron, copper, platinum, ruthenium, rhodium, palladium, lanthanum, osmium, iridium and the like can be added as a second metal component, the components can be supported on one carrier selected from active carbon (AC), carbon black (VB), carbon fiber (CF), graphene, carbon nano-tubes (CT), a mesoporous carbon material, gamma-alumina (gamma-Al2O3), silica (SiO2), zirconia (ZrO2), titania (TiO 2), a silicon-aluminum molecular sieve and a phosphorous-aluminum molecular sieve, and the catalyst is used for the catalytic hydrogenation degradation reaction of aromatic phenol and ether compounds. According to the present invention, with the catalyst, the aromatic phenol and ether compounds can be catalytically converted into the high-added value aromatic chemical products having the aromatic structure at the temperature of 150-350 DEG C under the initial hydrogen gas pressure of 1-6 MPa in the high-efficiency, high-selectivity and high-yield manner.

Description

technical field [0001] The invention belongs to the technical field of catalytic transformation of biomass derivatives, in particular to a molybdenum sulfide catalyst and its preparation and use in the hydrogenation degradation of aromatic phenols and ether small molecular compounds to produce high value-added fine chemicals with aromatic structures Applications. Background technique [0002] Petroleum, natural gas, coal and other fossil energy can provide human society with a large amount of fuel and chemicals through chemical processing and refining. They are an important driving force and guarantee for the development of today's society. However, due to the ever-decreasing finite fossil energy reserves, society's demand has increased dramatically and energy security and CO 2 Human beings are facing enormous challenges such as the greenhouse effect caused by the excessive emission of greenhouse gases. Renewable energy has the characteristics of renewability and environme...

Claims

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Application Information

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IPC IPC(8): B01J27/051C07C37/00C07C39/06C07C1/22C07C13/20C07C41/18C07C43/23C07C39/04C07C15/04C07C15/06
CPCY02P20/52B01J27/051B01J27/0515C07C1/22C07C37/00C07C41/18C07C39/06C07C13/20C07C43/23C07C39/04C07C15/04C07C15/06
Inventor 纪娜宋静静张涛郑明远刘庆岭陈冠益
Owner TIANJIN UNIV
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