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Low-freezing biodiesel combined fuel and preparation method thereof

A biodiesel and mixed fuel technology, applied in the fields of biofuels, fuels, fuel additives, etc., can solve the problems of unfavorable resource saving, renewable production of biodiesel, high cost, etc., to save crops and other mineral resources, short reaction time, The effect of stable product performance

Active Publication Date: 2012-11-28
北京雷恩新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it uses agricultural and forestry waste as raw material, which solves the defects of high cost to a certain extent, it still needs to use coal as raw material, which is not conducive to resource conservation and renewable production of biodiesel.

Method used

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  • Low-freezing biodiesel combined fuel and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1. Preparation of furfural and levulinic acid

[0044] 1. Raw material pretreatment:

[0045] After pulverizing Salix salix stubble with a moisture content of 15-20% into small particles of 0.5-1 cm, adding tap water and stirring to obtain a biomass slurry with a moisture content of 65%;

[0046] 2. The first step acid hydrolysis reaction:

[0047] Put the above-mentioned biomass slurry into the premixing tank, add formic acid solution with a mass percentage concentration of 8% into the tank, mix evenly, and send the slurry formic acid mixture into the first reactor with a plunger type high-pressure pump. The bottom of the reactor is fed with high-temperature and high-pressure steam to increase the temperature and pressure in the first reactor, and carry out the first step of acid hydrolysis reaction to obtain the first step to acid hydrolysis mixture, wherein the weight ratio of biomass slurry to formic acid solution 100:5, the temperature of the first step acid hydr...

Embodiment 2

[0082] 1. Preparation of furfural and levulinic acid

[0083] 1. Raw material pretreatment:

[0084] After pulverizing the caragana stubble with a moisture content of 15-20% into small particles of 0.5-1 cm, adding tap water and stirring to mix evenly to obtain a biomass slurry with a moisture content of 60%;

[0085] 2. The first step acid hydrolysis reaction:

[0086] Put the above-mentioned biomass slurry into the premixing tank, add formic acid solution with a mass percentage concentration of 4% into the tank, mix well, and send the slurry formic acid mixture into the first reactor with a plunger type high-pressure pump. The bottom of the reactor is fed with high-temperature and high-pressure steam to increase the temperature and pressure in the first reactor, and carry out the first step of acid hydrolysis reaction to obtain the first step to acid hydrolysis mixture, wherein the weight ratio of biomass slurry to formic acid solution 100:2, the temperature of the first s...

Embodiment 3

[0121] 1. Preparation of furfural and levulinic acid

[0122] 1. Raw material pretreatment:

[0123] After pulverizing Salix salix stubble with a moisture content of 15-20% into small particles of 0.5-1 cm, adding tap water and stirring to obtain a biomass slurry with a moisture content of 65%;

[0124] 2. The first step acid hydrolysis reaction:

[0125] Put the above biomass slurry into the premixing tank, add formic acid solution with a mass percentage concentration of 10% into the tank, mix evenly, and send the slurry formic acid mixture into the first reactor with a plunger type high-pressure pump. The bottom of the reactor is fed with high-temperature and high-pressure steam to increase the temperature and pressure in the first reactor, and carry out the first step of acid hydrolysis reaction to obtain the first step to acid hydrolysis mixture, wherein the weight ratio of biomass slurry to formic acid solution 100:8, the temperature of the first step acid hydrolysis re...

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Abstract

The invention discloses a low-freezing biodiesel combined fuel and a preparation method thereof, and the components of low-freezing biodiesel combined fuel comprise ethyl levulinate, methylfuroate, dibutyl carbonate, methyl oleate, solubilizing assistant and flash point improver. Each esters component in the low-freezing biodiesel combined fuel disclosed by the invention can be prepared from biomass materials, is simple in preparation technology, easy in separation and purification, pollution-free in production process, and can realize continuous operation with high preparation efficiency; and moreover, the prepared low-freezing biodiesel combined fuel is low in cost, environment-friendly and reproducible, particularly low in freezing point, and can well satisfy the demand for fuel in northern cold district.

Description

technical field [0001] The invention relates to the field of energy, in particular to a low-condensation biodiesel mixed fuel and a preparation method thereof. Background technique [0002] With the increasingly serious global energy shortage and environmental deterioration, controlling vehicle exhaust emissions and protecting the natural environment on which human beings live have become urgent problems for human beings to solve. From the perspective of environmental protection and resource strategy, energy researchers all over the world are actively exploring the development of alternative fuels and renewable energy sources, biodiesel is one of them, and it is based on aquatic plants such as oil crops, wild oil plants and engineered microalgae. Grease, animal fat, food waste oil, etc. are made of raw material oil through transesterification process. It is a renewable energy source with good lubricity, safety, and combustion performance. It is biodegradable. After use, the ...

Claims

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Application Information

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IPC IPC(8): C10L1/02C10L1/19C10L1/10C10L10/00C11B1/00C11C3/00
CPCY02E50/13Y02E50/10
Inventor 颉二旺张维
Owner 北京雷恩新材料科技有限公司
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