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Fuel molecule with spirocyclic hydrocarbon structure and preparation method thereof

A spirocycloalkane and molecular technology, which is applied in the field of fuel molecules with a spirocycloalkane structure and its preparation, can solve problems such as limiting direct application, and achieve the effects of reducing excessive dependence, increasing energy, and high density

Active Publication Date: 2016-06-08
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The document GreenChemistry, 2015, 17, 4473 condenses and hydrodeoxygenates cyclopentanone to obtain bicyclohexane with a density of 0.887g / cm 3 fuel, but its freezing point (1.2°C) is high, which limits its direct application

Method used

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  • Fuel molecule with spirocyclic hydrocarbon structure and preparation method thereof
  • Fuel molecule with spirocyclic hydrocarbon structure and preparation method thereof
  • Fuel molecule with spirocyclic hydrocarbon structure and preparation method thereof

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Embodiment Construction

[0027] In the following, the implementation of the present invention is further described with examples in the form of a list. The embodiments are illustrative only, not restrictive.

[0028] Table 1. Hydroxyalkylation / Alkylation Reaction Catalyst Level 0.6 g.

[0029]

[0030] Hydroxyalkylation / alkylation reaction: Take Examples 1 and 7 in Table 1 as an example: in a three-necked flask, under stirring conditions, add 160mmol of 2-methylfuran and 80mmol of cyclopentanone / cyclohexanone (2 :1 ratio), under the action of strong acid catalyst nafion-212, hydroxyalkylation / alkylation reaction occurs, the amount of catalyst is 0.6g, the reaction temperature is 40°C, and the reaction is 6h. Chromatographic analysis was used to measure the composition of the sample and calculate the yield of the target product FCF. For the reaction of cyclopentanone, the yield of C15-FCF is 85.4%; for the reaction of cyclohexanone, the yield of C16-FCF is 94.1%. The reaction conditions and yield...

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Abstract

The invention discloses a fuel molecule with a spirocyclic hydrocarbon structure, wherein the fuel molecule has the following structure, n is equal to 1 or 2; when n is equal to 1, the density of the fuel molecule with the spirocyclic hydrocarbon structure is 0.940 g / ml, and the freezing point is minus 43 DEG C; when n is equal to 2, the density of the fuel molecule with the spirocyclic hydrocarbon structure is 0.944 g / ml, and the freezing point is minus 36 DEG C. The invention further discloses a preparation method of the fuel molecule with the spirocyclic hydrocarbon structure. The structure is shown in the description.

Description

technical field [0001] The invention belongs to the field of fuel propellant, and relates to a fuel molecule with a spirocycloalkane structure and a preparation method thereof. Background technique [0002] High-density fuel is an important part of liquid propellant, and its performance determines the flight performance of the aircraft (including range, speed and payload), and is the key to providing power guarantee for the aircraft. High-density fuel can be applied to air-breathing engines fueled by kerosene, rocket engines, and rocket-ramjet, turbine-ramjet combined power engines. In addition to the advantages of general liquid hydrocarbon fuels, high-density fuels also have greater mass density and volumetric calorific value (that is, high energy density), which can effectively increase the energy carried in the case of limited engine oil tank volume to meet Requirements for high speed, large load and long range. [0003] High-density fuels are artificially synthesized ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C13/72C07C1/207C10L1/04
CPCC07C1/2076C07C13/72C07C45/59C07C45/74C07D307/36C10L1/04C07C49/637C07C49/297C07C49/303
Inventor 张香文邹吉军潘伦王庆法王莅
Owner TIANJIN UNIV
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