Method for in-situ preparation of biodiesel from Jiangxi gardenia as raw material in deep eutectic solvent/n-hexane system through ultrasonic assistance
A technology of deep eutectic solvent and biodiesel, which is applied in the fields of biofuel, fat oil/fat production, fuel, etc., can solve the problems of difficult separation, complicated process and high cost, and achieve the effect of reducing cost, simple process and low cost
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Embodiment 1
[0047] The extraction-transesterification coupling in-situ preparation of biodiesel in a deep eutectic solvent / n-hexane system using Gardenia jasminoides Jiangxi as raw materials includes the following steps:
[0048] (1) The Jiangxi Gardenia raw material is sterilized by autoclaving, washed with deionized water, dried in vacuum, pulverized by a pulverizer to obtain Jiangxi Gardenia powder raw material;
[0049] (2) In a 250ML round-bottomed flask, add 30g of Jiangxi Gardenia powder with an alcohol-to-oil ratio of 10:1, 180ml of deep eutectic solvent / n-hexane mixed solution, including 2.7g of DES. After installing the condensing device, put it into the ultrasonic reactor;
[0050] (3) Start the ultrasonic reactor heating device and set the reaction temperature to 30°C. After reaching the set value, start the ultrasonic switch and start to react;
[0051] (4) The reaction is terminated, wait for the flask to be cooled to normal temperature, unload the condensing reflux device...
Embodiment 2
[0055] The extraction-transesterification coupling in-situ preparation of biodiesel in a deep eutectic solvent / n-hexane system using Gardenia jasminoides Jiangxi as raw materials includes the following steps:
[0056] (1) The Jiangxi Gardenia raw material is sterilized by autoclaving, washed with deionized water, dried in vacuum, pulverized by a pulverizer to obtain Jiangxi Gardenia powder raw material
[0057] (2) In a 250ML round bottom flask, add 30g of Jiangxi Gardenia powder, alcohol-to-oil ratio 10:1, 180ml deep eutectic solvent / n-hexane mixed solution, including 2.7g of DES. After installing the condensing device, put it into the ultrasonic reactor;
[0058] (3) Start the ultrasonic reactor heating device and set the reaction temperature to 40°C. After reaching the set value, start the ultrasonic switch and start to react;
[0059] (4) The reaction is terminated, wait for the flask to be cooled to normal temperature, unload the condensing reflux device, take out the s...
Embodiment 3
[0063] The extraction-transesterification coupling in-situ preparation of biodiesel in a deep eutectic solvent / n-hexane system using Gardenia jasminoides Jiangxi as raw materials includes the following steps:
[0064] (1) The Jiangxi Gardenia raw material is sterilized by autoclaving, washed with deionized water, dried in vacuum, pulverized by a pulverizer to obtain Jiangxi Gardenia powder raw material;
[0065] (2) In a 250ML round bottom flask, add 30g of Jiangxi gardenia powder, the alcohol-to-oil ratio is 10:1, 180ml deep eutectic solvent / n-hexane mixed solution, of which DES 2.7g. After installing the condensing device, put it into the ultrasonic reactor;
[0066] (3) Start the ultrasonic reactor heating device and set the reaction temperature to 50°C. After reaching the set value, start the ultrasonic switch and start to react;
[0067] (4) The reaction is terminated, wait for the flask to be cooled to normal temperature, unload the condensing reflux device, take out t...
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