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A kind of technology that utilizes levulinic acid to prepare alcohol-based fuel

A technology of alcohol-based fuel and levulinic acid, which is applied in the direction of carboxylate preparation, fuel, liquid carbon-containing fuel, etc., and can solve the problems of low reaction yield, high cost of methyl levulinate, unfavorable competition of alcohol-based fuels, etc. , to achieve the effect of reducing loss and improving utilization

Active Publication Date: 2020-12-08
ANHUI SHENGBAO NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the yield of levulinic acid and methanol reaction is usually not more than 70%, and the reaction yield is low, resulting in higher cost of methyl levulinate, which is not conducive to its application in the competition of alcohol-based fuel market.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1), in the reactor with condensation recovery device, add successively the methyl alcohol of 40 mass parts, 4.7 mass parts mass fraction are the vitriol oil of 98%, the catalyzer of 59 mass parts, the levulinic acid of 123.3 mass parts, inside the reactor The materials were heated to 65-66 °C for 6 hours; wherein, 100 parts by mass of attapulgite over 500 meshes, 100 parts by mass of epoxy resin adhesive, 30 parts by mass of sodium bicarbonate, and 30 parts by mass of calcium hydrogen phosphate were mixed uniformly at 270 °C The catalyst is cured to form a rubber sheet, and the rubber sheet is crushed and pulverized to make a powder that has passed a 100-mesh sieve, which is the catalyst. The epoxy resin adhesive is prepared by mixing the epoxy resin base material, curing agent, diluent and accelerator uniformly according to the mass ratio of 100:2.3:80:0.02.

[0017] 2), the product in the reactor is obtained by rectifying methyl levulinate and methyl alcohol;

[0018...

Embodiment 2

[0021] 1), in the reactor with condensation recovery device, add successively the methyl alcohol of 43 mass parts, 7.2 mass parts mass fraction are the vitriol oil of 98%, the catalyzer of 60 mass parts, the levulinic acid of 124 mass parts, inside the reactor The raw materials were heated to 68-69 °C for 7 h; wherein, 100 parts by mass of attapulgite over 500 mesh, 110 parts by mass of epoxy resin adhesive, 33 parts by mass of sodium bicarbonate, and 33 parts by mass of calcium hydrogen phosphate were mixed evenly at 280 °C The catalyst is cured to form a rubber sheet, and the rubber sheet is crushed and pulverized to make a powder that has passed a 100-mesh sieve, which is the catalyst. The epoxy resin adhesive is prepared by mixing the epoxy resin base material, curing agent, diluent and accelerator uniformly according to the mass ratio of 100:2.6:90:0.03.

[0022] 2), the product in the reactor is obtained by rectifying methyl levulinate and methyl alcohol;

[0023] 3), s...

Embodiment 3

[0026] 1), in the reactor with condensation recovery device, add successively the methyl alcohol of 50 mass parts, 5.2 mass parts mass fraction are the vitriol oil of 98%, the catalyzer of 63 mass parts, the levulinic acid of 124.7 mass parts, inside the reactor The material was heated to 69-70 ℃ for 6 hours; wherein, 100 parts by mass of attapulgite over 500 meshes, 120 parts by mass of epoxy resin adhesive, 35 parts by mass of sodium bicarbonate, and 35 parts by mass of calcium hydrogen phosphate were mixed uniformly at 290 ℃ The catalyst is cured to form a rubber sheet, and the rubber sheet is crushed and pulverized to make a powder that has passed a 100-mesh sieve, which is the catalyst. The epoxy resin adhesive is prepared by mixing the epoxy resin base material, curing agent, diluent and accelerator uniformly according to the mass ratio of 100:2.7:100:0.03.

[0027] 2), the product in the reactor is obtained by rectifying methyl levulinate and methyl alcohol;

[0028] 3...

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Abstract

The invention relates to a technology for preparing alcohol-based fuel by utilizing levulinic acid. The technology comprises the steps that methanol, concentrated sulfuric acid, a catalyst and the levulinic acid are sequentially added into a reaction kettle with a condensation recovery device, materials inside the reaction kettle is heated to 65-70 DEG C, and reaction is carried out for 6-8 hours;products inside the reaction kettle are rectified so as to obtain methyl levulinate and the methanol; and the methyl levulinate, the methanol and an auxiliary are mixed and stirred uniformly so as toprepare the alcohol-based fuel. The technology has the advantages that in the preparing process of the alcohol-based fuel, renewable biomass raw materials of the levulinic acid and the methanol are converted into the methyl levulinate in a synthesized mode, and the synthesis yield of the methyl levulinate can reach 95.1%; and the methyl levulinate and the methanol are combusted cooperatively, sothat the loss of the methanol caused by evaporation in the combustion process can be reduced, and the utilization rate of the alcohol-based fuel is increased.

Description

technical field [0001] The invention relates to the technical field of alcohol-based fuels, in particular to a process for preparing alcohol-based fuels by utilizing levulinic acid. Background technique [0002] Alcohol-based fuels are fuels mainly configured with alcohols (such as methanol, ethanol, butanol, etc.). The combustion value of biofuel is lower than that of liquefied gas and diesel, but the price is more advantageous. It can be used as an alternative fuel for petroleum liquefied gas and diesel fuel. It is low-cost, safe, convenient, has no residue, no black bottom, and is clean and safe. , cheap, easy to buy raw materials, easy to use and other characteristics, the cost is only about one-third of the wholesale price of petroleum liquefied gas or diesel, huge profit margins, with extremely high investment value. [0003] Methyl levulinate is widely used as an important platform compound in the biomass conversion process, and can be used as food additives, spices,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/02C10L1/10C07C69/716C07C67/08B01J31/26
CPCB01J31/26C07C67/08C10L1/02C10L1/10C07C69/716
Inventor 曹大强
Owner ANHUI SHENGBAO NEW ENERGY TECH CO LTD