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Method for preparing biofuel from waste oil, and preparation method for mixed fuel

A technology for waste oil and biofuel, applied in the field of biomass fuel oil preparation, can solve the problems of difficulty and high cost of biofuel, and achieve the effects of less equipment, low cost and high yield

Active Publication Date: 2017-08-29
YISHUI WANFU GREASE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for preparing biofuel from waste oil, which aims to improve the existing problem of difficulty and high cost in preparing biofuel from waste oil

Method used

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  • Method for preparing biofuel from waste oil, and preparation method for mixed fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Take 0.8g of polyoxyethylene ether, 11.2g of monoethanolamine oleate, 168g of waste oil, 5g of potassium hydroxide, 14g of deionized water, 6g of n-butanol, and 8.4g of anhydrous calcium chloride and weigh them for later use.

[0035] Dissolve 5 g of potassium hydroxide in 14 g of deionized water to obtain a potassium hydroxide solution with a molar concentration of 6.38 mol / L and a quality of 19 g for subsequent use.

[0036] Take 0.8 g of polyoxyethylene ether and 11.2 g of monoethanolamine oleate, mix and stir evenly to prepare a microemulsifier.

[0037] Heat 168g of waste oil to 110 degrees Celsius, and under vacuum conditions, add anhydrous calcium chloride to the heated waste oil to absorb the water in the waste oil, and dehydrate the waste oil with anhydrous calcium chloride The time was 24 hours, and then the calcium chloride was separated by filtration, and the addition of anhydrous calcium chloride was 8.4g.

[0038] 12g of the microemulsifier was mixed with...

Embodiment 2

[0042] Tween 2.1g, glyceryl oleate 11.9g, waste oil 182g, potassium hydroxide 4.11g, deionized water 12.22g, methanol 7.08g, anhydrous calcium chloride 18.2g were weighed for later use.

[0043] Dissolve 4.11 potassium hydroxide in 12.22 g of deionized water to obtain a potassium hydroxide solution with a molar concentration of 6 mol / L and a quality of 16.33 g for subsequent use.

[0044] Get 2.1g of Tween and 11.9g of glyceryl oleate and mix and stir evenly to prepare 14g of microemulsifier.

[0045] Heat 182g of waste oil to 100 degrees Celsius, and under vacuum conditions, add anhydrous calcium chloride to the heated waste oil to absorb the water in the waste oil, and dehydrate the waste oil with anhydrous calcium chloride The time was 20 hours, and then the calcium chloride was separated by filtration, and the addition of anhydrous calcium chloride was 18.2g.

[0046] 14g of the microemulsifier was mixed with the dehydrated waste oil, and then stirred with an electric stirr...

Embodiment 3

[0050] Triton 0.75g, polyethylene glycol oleate 10.5g, waste oil 180g, sodium hydroxide 3.15g, deionized water 10.48g, ethanol 5.84g, anhydrous calcium chloride 11.5g were weighed for later use.

[0051] Dissolve 3.15 g of sodium hydroxide in 10.48 g of deionized water to obtain a sodium hydroxide solution with a molar concentration of 7.5 mol / L and a mass of 13.63 g for subsequent use.

[0052] Get 0.75 g of Triton and 10.5 g of polyethylene glycol oleate and mix and stir to obtain 10.8 g of microemulsifier.

[0053] Heat 180g of waste oil to 120 degrees Celsius, and under vacuum conditions, add anhydrous calcium chloride to the heated waste oil to absorb the water in the waste oil, anhydrous calcium chloride for dehydration of waste oil The time was 26 hours, and then the calcium chloride was separated by filtration, and the addition of anhydrous calcium chloride was 11.5g.

[0054] Mix 10.8 g of the microemulsifier with the dehydrated waste oil, and stir with an electric s...

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Abstract

The invention provides a method for preparing a biofuel from waste oil, belonging to the technical field of preparation of biomass fuel oil. The method comprises the following steps: mixing oleate with at least one selected from a group consisting of polyoxyethylene ether, Tween, Triton and sodium dodecyl benzene sulfonate so as to prepare a micro-emulsifier; uniformly mixing waste oil with the micro-emulsifier so as to obtain a first mixed solution; mixing a strong alkaline solution with the first mixed solution under stirring so as to obtain a second mixed solution; and adding a co-emulsifier into the second mixed solution, carrying out stirring so as to obtain microemulsified waste oil and subjecting the microemulsified waste oil to cracking so as to obtain the biofuel. The method for preparing the biofuel is simple in process and low in cost; and the prepared biofuel has stable performance and high calorific value. The invention also provides a preparation method for a mixed fuel. The preparation method for the mixed fuel comprises the method for preparing the biofuel from waste oil, and is simple in process, low in cost, green and friendly to environment.

Description

technical field [0001] The invention relates to the technical field of preparation of biomass fuel oil, in particular to a method for preparing biofuel from waste oil and a preparation method for mixed fuel. Background technique [0002] Biomass oil refers to the use of renewable resources such as plants and animal oils as raw materials to produce clean fuels that can be used as petroleum diesel substitutes. Vigorously developing biodiesel has important strategic significance for sustainable economic development, promoting energy substitution, reducing environmental pressure, and controlling urban air pollution. [0003] At present, waste oil is mainly converted into biodiesel, and the method for producing biodiesel is mainly chemical method, which adopts acid and alkali catalysis (mainly KOH, NaOH and sulfuric acid) to produce biomass oil. However, there are some technical difficulties, such as the use of liquid acids such as sulfuric acid as catalysts, severe corrosion of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00C10G9/20C10L1/00
CPCY02P30/20C10G3/40C10G9/20C10G2300/1007C10L1/00C10L2290/02C10L2290/141C10L2290/24
Inventor 朱驯
Owner YISHUI WANFU GREASE