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Catalyst carrier for preparing high-energy-density fuel as well as preparation method and application of catalyst carrier

A technology with high energy density and catalyst support, which is applied in the direction of catalyst support, catalyst activation/preparation, chemical instruments and methods, etc., can solve the problems of high specific surface area and single catalyst function, and achieve the improvement of hydrodeoxygenation performance and Effects of benzene ring saturation, increased added value, and high specific surface area

Active Publication Date: 2022-02-01
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the single function of the catalyst in the prior art (for example, it cannot have high specific surface area, suitable acid active center and catalytic hydrogenation active center, etc.), and it cannot convert lignin into high energy density Defects such as fuels, thereby providing a catalyst carrier for preparing high energy density fuels, preparation methods and applications

Method used

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  • Catalyst carrier for preparing high-energy-density fuel as well as preparation method and application of catalyst carrier
  • Catalyst carrier for preparing high-energy-density fuel as well as preparation method and application of catalyst carrier
  • Catalyst carrier for preparing high-energy-density fuel as well as preparation method and application of catalyst carrier

Examples

Experimental program
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Effect test

Embodiment 1-9

[0065] Embodiment 1-9 provides a kind of Nb / ZrO respectively 2 Catalyst carrier and preparation method thereof, preparation method comprises the following steps,

[0066] (1) Mix zirconium nitrate, stabilizer and 100mL ethanol to form solution A; mix niobium oxalate and 100mL oxalic acid aqueous solution to form solution B; mix template agent and 100mL ethanol to form solution C;

[0067] (2) Add solution A and solution B dropwise to solution C at the same time to obtain a mixed solution, add ammonia water to the mixed solution to adjust the pH to 3-6, stir and react at 25°C, take it out, filter, and dry at 100°C 10h, and then calcined for 6h to obtain Nb-doped ZrO 2 Catalyst carrier, denoted as Nb / ZrO 2 .

[0068] The difference between Examples 1-9 lies in the molar concentration of zirconium ions in the mixed solution, the mass concentration of the stabilizer in the mixed solution, the molar concentration of niobium ions in the mixed solution, the mass concentration of t...

Embodiment 10-20

[0075] Embodiments 10-20 respectively provide a method for preparing high energy density fuel, comprising the following steps,

[0076] Disperse the lignin and catalyst in 100mL water, then place it in a 300mL autoclave, pour 0.5-5MPa of hydrogen into it, raise the temperature to 250-350°C, stir and react for 0.5-12h, after the reaction is over, filter and rotary steam Solvent removal yields high energy density fuels.

[0077] Among them, the difference between Examples 10-20 lies in the amount of lignin, catalyst amount, catalyst type, hydrogen pressure, reaction temperature, and reaction time. The process parameters in Examples 10-20 are shown in Table 2.

[0078] Process parameter in table 2 embodiment 10-20

[0079]

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Abstract

The invention belongs to the technical field of lignin preparation through heterogeneous catalytic conversion, and particularly relates to a catalyst carrier for preparing high-energy-density fuel as well as a preparation method and application thereof. According to the application of niobium-doped zirconium oxide in preparation of the high-energy-density fuel, the niobium-doped zirconium oxide enables a part of niobium to enter zirconium oxide crystal lattices so as to replace a part of zirconium, and the obtained carrier enables a catalyst to have relatively proper acid strength and acid amount, a high specific surface area and high hydrogenation activity; the catalyst can be directly used for preparing the high-energy-density fuel from the lignin, and the lignin is converted into the high-energy-density fuel such as bicycloalkane and tricycloalkane through a one-step method under the condition that no inorganic acid or alkali is added, so the additional value of lignin application is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of heterogeneous catalytic conversion of lignin, and in particular relates to a catalyst carrier for preparing high energy density fuel, a preparation method and an application. Background technique [0002] High energy density fuel generally refers to a fuel composed of various hydrocarbons with a density greater than 0.8g / cm 3 The fuel is mainly used in modern long-range, high-speed aircraft and advanced missile systems. It is of great significance to improve the performance of aircraft, missiles and other aircraft. High energy density fuel has been paid more and more attention by researchers. High-energy-density fuels are usually planar cycloalkanes such as bicyclic, tricyclic, and tetracyclic, or three-dimensional cycloalkanes such as adamantane and high-tension cages, which have high fuel density and volumetric combustion calorific value, and the volumetric combustion calorific value is average Greater...

Claims

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Application Information

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IPC IPC(8): B01J23/847B01J23/20B01J35/10B01J32/00B01J37/00C10L1/04
CPCB01J23/8474B01J23/20B01J37/0018C10L1/04B01J35/615Y02P30/20
Inventor 马睿王钰张歆涂高美卢信清傅仰河王宁伟朱伟东
Owner ZHEJIANG NORMAL UNIVERSITY
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