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High-energy-density slurry fuel, preparation method and application

A high-energy-density, high-density liquid technology, used in fuels, fuel additives, liquid carbon-containing fuels, etc., can solve the problems of oxidative deactivation of nano-aluminum particles, affect energy performance, and reduce active aluminum content, and achieve anti-settling performance. Good, improve combustion performance, reduce the effect of two-phase flow loss

Active Publication Date: 2022-02-11
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]Although the nano-Al powder has high combustion efficiency, the nano-Al powder is in a highly activated state due to its special surface effect, and it is easy to dissociate with the gas in the environment. , The interaction of liquid molecules makes the nano-aluminum particles easily oxidized and deactivated, making the surface covered with a 2-6nm alumina thin layer, and the active aluminum content will drop significantly with the particle size decreasing, seriously affecting its energy performance

Method used

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  • High-energy-density slurry fuel, preparation method and application
  • High-energy-density slurry fuel, preparation method and application
  • High-energy-density slurry fuel, preparation method and application

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preparation example Construction

[0037] According to the second aspect of the present invention, there is provided a preparation method of high energy density slurry fuel, comprising the following steps: adding high density liquid hydrocarbon fuel, aluminum base-metal hydride composite Fuel, anti-settling agent, and other performance modifiers are mixed at room temperature to a uniform slurry to obtain a high-energy-density slurry fuel.

[0038] According to the third aspect of the present invention, the use of the high-energy-density slurry fuel described in the first aspect as a fuel for an engine such as a ramjet or a rocket engine.

Embodiment 1

[0042](1) Composition of fuel composition

[0043]

[0044] The preparation method is: add hanging tetrahydrodicyclopentadiene, Al-LiH, white carbon black, and nitromethane into a 5L vertical mixer according to the above ratio, and mix at room temperature for 45 minutes until it becomes a uniform slurry to obtain high-energy Density slurry fuel.

[0045] (2) Fuel performance

[0046]

[0047]

[0048] Can know from embodiment 1, measured calorific value=40.5MJ·kg -1 (greater than 38MJ·kg -1 ), density = 0.954g cm -3 (ρ 20℃ >0.9g·cm -3 ), combustion efficiency = 98%, active aluminum content in the residue = 0.02%, and has the advantages of high density, high energy, fast ignition speed and high combustion efficiency.

Embodiment 2

[0050] (1) Composition of fuel composition

[0051]

[0052] The preparation method is the same as in Example 1.

[0053] (2) Propellant performance

[0054]

[0055] Can know from embodiment 2, measured calorific value=40.9MJ·kg -1 (greater than 38MJ·kg -1 ), density=1.067g cm -3 (ρ 20℃ >0.9g·cm -3 ), combustion efficiency=99%, active aluminum content in the residue=0, and has the advantages of high density, high energy, fast ignition speed and high combustion efficiency.

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Abstract

The invention provides a high-energy-density slurry fuel, a preparation method and an application. The high-energy-density slurry fuel comprises the following components in percentage by mass: 3%-40% of aluminum-based metal hydride composite fuel; 53.6%-96% of high-density liquid hydrocarbon fuel; 0.2%-2% of an anti-settling agent; and the balance of other performance regulators. The aluminum-based metal hydride is a composite material in which metal hydride is dispersed and distributed in aluminum powder. The high-energy-density slurry fuel can be used as fuel of engines such as ramjet engines or rocket engines. Compared with existing liquid fuel, the high-energy-density slurry fuel disclosed by the invention has the characteristics of high density ([rho]20 DEG C is greater than 0.9 g / cm<3>), high calorific value (greater than 38MJ / kg), quick ignition and efficient combustion. Compared with the existing slurry fuel, the slurry fuel has the advantages of quick ignition, high-efficiency combustion and no or less residues of combustion products.

Description

technical field [0001] The invention belongs to the technical field of fuel for missile weapons, and in particular relates to a slurry fuel with high energy density, a preparation method and an application. Background technique [0002] Fuel technology is the core technology, basic technology, and even restrictive technology for the development of aerospace weapons. Liquid hydrocarbon fuel plays an important role in the field of aerospace propulsion, and fuel performance (especially energy and density) is one of the keys to determine flight performance (including range, speed and payload, etc.). The development of high-performance aircraft has put forward higher requirements for the propulsion capability of fuel. High-density fuel has greater mass density and volumetric calorific value, which can provide more energy without increasing the size of the fuel tank, and is a low-cost Vital fuel for rapid flight performance improvements. [0003] The addition of metal fuels to l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L8/00C10L1/12C10L1/04C10L10/00C10L10/04
CPCC10L8/00C10L1/1216C10L1/04C10L10/00C10L10/04C10L2230/22C10L2270/04
Inventor 王芳王凯付晓梦黄谱史钰王伟李春涛王艳薇李伟宋仕雄
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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