Method for modifying tung oil methyl esters by utilizing ultrasonic wave

A biodiesel and ultrasonic technology, applied in the chemical/physical/physicochemical process of energy application, biofuel, petroleum industry, etc., to improve high dynamic viscosity, high iodine value, high oil content, reduce energy and time Effect

Inactive Publication Date: 2014-04-16
NAT TAIPEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology is limited by the high viscosity and high iodine value of tung oil biodiesel, so the blending amount of tung oil in tung oil biodiesel is only below 20wt%.

Method used

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  • Method for modifying tung oil methyl esters by utilizing ultrasonic wave
  • Method for modifying tung oil methyl esters by utilizing ultrasonic wave
  • Method for modifying tung oil methyl esters by utilizing ultrasonic wave

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1. The fixed ultrasonic power is 180W

[0028] The blending ratio of the oil product in this embodiment is 60% tung oil, 30% canola oil and 10% palm oil, wherein the tung oil is extracted from the tung oil seeds produced by the tung oil tree in Miaoli County, Taiwan; the canola oil is purchased from Taiwan Flavor Co., Ltd., its main fatty acid component is oleic acid (oleic acid); palm oil is purchased from Taiwan Justice Co., Ltd., its main fatty acid component is palmitic acid (palmitic acid), and the molar ratio of methanol to oil is 6, and a mixture is formed by using potassium hydroxide (KOH) with a concentration of 2wt% as a transesterification catalyst, and then the volume of the mixture is adjusted to be between 130mL and 780mL. The mixture is placed in the reaction vessel 40, and the frequency of the ultrasonic controller 10 is set to 20 kilohertz (kHz), the mixture is vibrated ultrasonically for 5 minutes with the ultrasonic transmitter 30, and the ...

Embodiment 2

[0032] Embodiment 2. The fixed ultrasonic power is 270W

[0033] The blending ratio of the oil product of this embodiment is as described in Example 1, which is 60% tung oil, 30% canola oil and 10% palm oil, so that the molar ratio of methanol to oil product is 6, and the concentration is 2wt%. Potassium hydroxide (KOH) is used as a transesterification catalyst to form a mixture, and the volume of the mixture is adjusted to between 130mL and 390mL, then the mixture is placed in the reaction vessel 40, and the ultrasonic controller 10 The frequency of the mixture was set to 20 kHz, the mixture was oscillated by ultrasonic waves 30 for 5 minutes, and the thermometer 20 and the constant temperature water tank 50 were adjusted to make the reaction temperature 25°C.

[0034] The results are shown in Table 2. When the ultrasonic power is fixed at 270W, the acid value, iodine value and dynamic viscosity of each oil product also decrease with the decrease of the mixture volume, while ...

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Abstract

The invention relates to a method for modifying tung oil methyl esters by utilizing ultrasonic wave. Specifically, the method comprises: mixing an oil product, an alcohol and a transesterification catalyst to form a mixture, and vibrating the mixture by ultrasonic wave to obtain low-kinematic-viscosity low-iodine-value tung oil methyl esters, wherein the oil product comprises 20-80 wt% of tung oil, 10-50 wt% of canola oil and 0-30 wt% of palm oil. By regulating the oil product volume and the ultrasonic wave power, the tung oil blending amount is improved, and also the disadvantages of high kinematic viscosity and high iodine value of tung oil methyl esters are improved.

Description

technical field [0001] The invention relates to a method for modifying tung oil biodiesel, in particular to a method for modifying tung oil biodiesel by using ultrasonic waves. Background technique [0002] Biodiesel is a renewable energy source that uses oil crops or recycled edible oil as raw material. European and American countries have actively developed biodiesel over the past ten years, and the annual output of biodiesel has increased year by year. Standards and specifications have been established for biodiesel-related laws and regulations, oil product specifications, and inspection methods, and the production has increased year by year. The blending ratio of quality diesel and petrochemical diesel. Taiwan's energy import ratio is as high as about 98%. At the time of energy depletion and high oil prices, it is necessary to develop indigenous and promising woody forest oil crops to produce biodiesel. [0003] The sources of raw materials for food and biofuels compet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/04B01J19/10C10L1/02
CPCY02E50/13Y02E50/10
Inventor 陈奕宏张庆源曼杜凡张家骥
Owner NAT TAIPEI UNIV OF TECH
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