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Method for preparing biodiesel from rhodosporidium toruloides

A technology of Rhodosporidium toruloides and biodiesel, which is applied in the field of biodiesel preparation, can solve the problems such as difficulty in breaking the walls of Rhodosporidium toruloides, complicated transesterification reaction process, environmental pollution of catalysts, etc., and achieves efficient comprehensive utilization. , The effect of reducing the cost of commercial application and solving the difficulty of yeast wall breaking

Pending Publication Date: 2022-04-19
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the defects of Rhodosporidium toruloides in the prior art that it is difficult to break the wall, the transesterification process is complex, and the catalyst is polluted, the invention discloses a method for preparing biodiesel from Rhodosporidium torulosporidium, which uses a thermochemical method to prepare biodiesel. Diesel, using an acidic ionic liquid as a catalyst, the catalyst plays a role in both wall breaking and transesterification reactions
At the same time, the ionic liquid catalyst used in this method not only has high catalytic efficiency, but also can be recycled, which solves the problem that the catalyst in the traditional process has environmental pollution and cannot be recycled, and realizes sustainable development.

Method used

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  • Method for preparing biodiesel from rhodosporidium toruloides
  • Method for preparing biodiesel from rhodosporidium toruloides
  • Method for preparing biodiesel from rhodosporidium toruloides

Examples

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Effect test

Embodiment 1

[0043] The present embodiment provides a method for preparing biodiesel by Rhodosporidium toruloides, the method specifically comprising the following steps:

[0044] (1): After drying Rhodosporidium toruloides, use a 120-mesh sieve to sieve, and weigh 5g for later use;

[0045] (2): Weigh 40g of methanol and 5g of 1-butyl-3 methylimidazolium bisulfate;

[0046] (3): Put the yeast in step (1), methanol and 1-butyl-3 methylimidazolium bisulfate in step (2) into the reaction kettle, shake slightly to mix the reactants evenly, and cover the reaction Kettle lid to seal the reactor;

[0047] (5): Feed enough N into the reactor 2 , discharge the air in the reactor;

[0048] (6): Heating the reactor, the reaction temperature is 100°C;

[0049] (7): After reaching the reaction temperature, keep the temperature for 60 minutes, that is, the reaction time is 60 minutes;

[0050] (8): After the reaction, cool down to room temperature naturally;

[0051] (9): Open the lid of the reac...

Embodiment 2

[0057] The present embodiment provides a method for preparing biodiesel by Rhodosporidium toruloides, the method specifically comprising the following steps:

[0058] (1): After drying Rhodosporidium toruloides, use a 120-mesh sieve to sieve, and weigh 5g for later use;

[0059] (2): Weigh 40g of methanol and 5g of bis(1-butyl-3methylimidazole) hydrogen phosphate;

[0060] (3): Put the yeast in step (1), methanol and bis(1-butyl-3 methylimidazole) hydrogen phosphate salt in step (2) into the reaction kettle, shake slightly to mix the reactants evenly , cover the lid of the reactor to seal the reactor;

[0061] (5): Feed enough N into the reactor 2 , discharge the air in the reactor;

[0062] (6): Heating the reactor, the reaction temperature is 100°C;

[0063] (7): After reaching the reaction temperature, keep the temperature for 60 minutes, that is, the reaction time is 60 minutes;

[0064] (8): After the reaction, cool down to room temperature naturally;

[0065] (9): ...

Embodiment 3

[0071] The present embodiment provides a method for preparing biodiesel by Rhodosporidium toruloides, the method specifically comprising the following steps:

[0072] (1): After drying Rhodosporidium toruloides, use a 120-mesh sieve to sieve, and weigh 5g for later use;

[0073] (2): Weigh 40g of methanol and 5g of 1-butyl-3-methylimidazolium dihydrogen phosphate;

[0074] (3): Put the yeast in step (1), methanol and 1-butyl-3 methylimidazole dihydrogen phosphate in the reaction kettle, shake slightly to mix the reactants evenly, and cover Reactor lid to seal the reactor;

[0075] (5): Feed enough N into the reactor 2 , discharge the air in the reactor;

[0076] (6): Heating the reactor, the reaction temperature is 100°C;

[0077] (7): After reaching the reaction temperature, keep the temperature for 60 minutes, that is, the reaction time is 60 minutes;

[0078] (8): After the reaction, cool down to room temperature naturally;

[0079] (9): Open the lid of the reaction k...

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Abstract

The invention discloses a method for preparing biodiesel from rhodosporidium toruloides, which comprises the following steps of: putting rhodosporidium toruloides, methanol and an acidic ionic liquid catalyst into a closed reaction kettle, heating the reaction kettle in an inert atmosphere, destroying yeast cell walls by the acidic ionic liquid, and reacting to obtain the biodiesel. Wherein the grease overflows and then is subjected to transesterification with methanol under the catalytic action of H < + > to generate fatty acid methyl ester (biodiesel). Compared with the traditional process, the method has the advantages that the biodiesel is prepared by matching the thermochemical method with the acidic ionic liquid catalyst, the reaction condition is mild, the catalyst plays a catalytic role in wall breaking and ester exchange, and the two processes of wall breaking and ester exchange are realized in one step; after the reaction is finished, the biodiesel is simply separated from the yeast cell wall, and the recycled yeast cell wall can be used as feed and other purposes; the used acidic ionic liquid catalyst can be recycled and reused, is safe and pollution-free, and is an environment-friendly and efficient method for preparing biodiesel from rhodosporidium toruloides.

Description

technical field [0001] The invention relates to the technical field of biodiesel preparation, in particular to a method for preparing biodiesel by Rhodosporidium toruloides. Background technique [0002] With the development of society, the human demand for fossil fuels is increasing day by day, resulting in energy shortages and environmental pollution problems, which can be effectively alleviated by the use of renewable energy. Among them, biomass is the only renewable carbon source on the earth. The total amount of biomass grown on the earth is about 140-180 billion tons every year, which is equivalent to 10 times the current total energy consumption in the world. The development and utilization of biomass energy is of great significance to the sustainable development of human beings. Biodiesel is a kind of fatty acid monoalkyl ester, the most typical one is fatty acid methyl ester, which has the advantages of non-toxicity, low sulfur content and biodegradability, and h...

Claims

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Application Information

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IPC IPC(8): C12P7/649C11C3/10C10L1/02C12R1/645
CPCC12P7/649C10L1/02C11C3/10
Inventor 陈玉炜樊永胜熊永莲高豪杰严军
Owner YANCHENG INST OF TECH
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