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Ether energy and preparation method and application thereof

An energy and ether technology, applied in the field of ether energy and its preparation, can solve the problems of long production cycle and high energy consumption, and achieve the effect of convenient separation, simple reaction device and simple process

Inactive Publication Date: 2012-09-05
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cellulose cracking refers to cracking fibers under high temperature and high pressure to obtain liquid energy. This method consumes a lot of energy and has a long production cycle, and it is still in the laboratory stage.

Method used

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  • Ether energy and preparation method and application thereof
  • Ether energy and preparation method and application thereof
  • Ether energy and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Preparation of sucrose ether liquid energy from sucrose

[0045] (1) Dissolve 50 g of sucrose (analytically pure, the molar number of hydroxyl groups is 1.169 mol) in 50 mL of water.

[0046] (2) Dissolve 47g (1.169mol) of sodium hydroxide in 50mL of water and cool in an ice bath.

[0047] (3) Pour the solutions obtained in steps (1) and (2) into a high-temperature and high-pressure reactor, add 150 mL of monochloroethane (2.14 mol), and react with magnetic stirring at 120° C. for 12 h.

[0048] (4) After the reaction was completed, the upper layer of the reaction solution was separated, and the volume fraction was added to 50% sulfuric acid solution until the pH value was neutral, and the sodium sulfate was left to stand to precipitate, and then centrifuged at 3000r / min for 10min to obtain the supernatant.

[0049] (5) Purification of samples:

[0050] The following two methods were used for purification:

[0051] ①Add 50mL of chloroform to the supernatant obtained ...

Embodiment 2

[0057] Preparation of sucrose mannitol ether liquid energy from mannitol

[0058] (1) Take 50g of mannitol (the molar number of hydroxyl groups is 1.64mol), add 50mL of water to dissolve in the reaction kettle, and then add 60g of silver oxide.

[0059] (2) Add 115 mL of monochloroethane (1.64 mol), and react with magnetic stirring at 110° C. for 2 h.

[0060] (3) After the reaction, the supernatant of the reaction solution was separated, and the samples were purified by the following methods:

[0061] ① The supernatant obtained in step (3) was washed with water until the pH value was neutral, and the water was evaporated to dryness under vacuum at 60-80° C. to obtain an oily product.

[0062] ② The supernatant obtained in step (3) is washed with water until the pH value is neutral, and dried directly or with a dehydrating agent at 100-105° C. to obtain an oily product.

[0063] After testing, the products obtained by purification methods ① and ② are the same, and the specif...

Embodiment 3

[0067] Preparation of Glycerol Ether Liquid Energy from Glycerol

[0068] (1) Take 35 mL of glycerol (analytical pure) (the number of moles of hydroxyl groups is 1.19 mol).

[0069] (2) Dissolve 120g of potassium hydroxide in 200mL of water and cool in an ice bath.

[0070] (3) Pour the solutions obtained in steps (1) and (2) into a high-temperature and high-pressure reactor, add 250 mL of monochloroethane (3.57 mol), and react with medium-speed magnetic stirring at 120 ° C for 1 h.

[0071] (4) After the reaction, separate the supernatant of the reaction solution, evaporate the water to dryness at a vacuum of 0.1 MPa and a temperature of 40°C; raise the temperature to 90-120°C to distill the product.

[0072] After testing, the products obtained by purification methods ① and ② are the same, and the specific test results are as follows:

[0073] Detection method is with embodiment 1, and detection result is as follows: by Figure 11 Combined with mass spectrometry Figure ...

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Abstract

The invention discloses ether energy and a preparation method and application thereof. The preparation method comprises the following steps of: adding water to dissolve monosaccharide, oligosaccharide or sugar alcohol of monosaccharide or oligosaccharide serving as raw materials in a solid state; and adding a catalyst of which the mole number is 1 to 3 times that of free hydroxyl groups in sugar or sugar alcohol and an etherification reagent of which the mole number is 1 to 3 times that of free hydroxyl groups in sugar or sugar alcohol, performing reaction with stirring at the temperature of between 80 and 160 DEG C, and separating and purifying to obtain an ether compound of sugar or sugar alcohol. The preparation method has obvious advantages and simple and rapid process. The ethers obtained after the reaction are convenient to separate from alkali liquor on the lower layer due to automatic demixing. The residual alkali liquor after separation can be reused. The preparation method has low discharge of waste and waste liquor and is environmental-friendly. The ether energy obtained by the preparation method can be easier to burn, has low solidifying point and is favorable for being used in the low temperature environment.

Description

technical field [0001] The invention relates to an energy source, in particular to an ether energy source and its preparation method and application. Background technique [0002] With the development of industrialization, the demand for energy has increased sharply, and the problem of energy shortage has become increasingly serious. The global oil resources and energy are expected to be exploited for 48 years, and my country's oil, coal and natural gas are expected to be exploited for 22, 90 and 80 years respectively. The global exploitation of fossil fuel resources will enter a period of decline. If alternative energy sources are not developed in time, the world will face a serious energy crisis. [0003] Biomass energy is the most ideal alternative energy. Nearly 200 billion tons of fiber are synthesized through photosynthesis in the world every year, of which 13.5 billion tons are waste generated from agriculture and food processing. my country is a large agricultural...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07H1/00C07H15/04C07C43/10C07C41/16C10L1/02
Inventor 欧仕益林海伟赵阳阳汪勇
Owner JINAN UNIVERSITY
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