Method for producing biodiesel by catalyzing microalgae oil by ultrasonic-assisted ionic liquid

An ionic liquid, catalyzing microalgae technology, applied in the direction of fat oil/fat production, biofuel, fat production, etc., can solve the problems of low extraction efficiency, environmental pollution, high cost, reduce reaction time, reduce production cost, and save production cost effect
CN102732385AInactive Publication Date: 2012-10-17DAQING BRANCH OF HEILONGJIANG ACAD OF SCI
3 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DAQING BRANCH OF HEILONGJIANG ACAD OF SCI
Publication Date
2012-10-17
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention relates to a method for producing biodiesel from microalgae oil, particularly a method for producing biodiesel by catalyzing microalgae oil by an ultrasonic-assisted ionic liquid. The invention aims to solve the severe problems of low extraction efficiency, high cost and environmental pollution of reagents in the existing biodiesel preparation method. The method provided by the invention comprises the following steps: 1. preparing [BMIM]Cl, mixing the [BMIM]Cl and NaBF4 in a mol ratio of 1:1, adding acetone to react for 18-24 hours, filtering, and carrying out vacuum distillation to obtain an ionic liquid [BMIM]BF4; and 2. mixing the microalgae oil with methanol or ethanol, adding the mixture into the ionic liquid [BMIM]BF4, carrying out ultrasonic treatment for 20-50 minutes, extracting, collecting the supernatant solution, and carrying out vacuum distillation to obtain the biodiesel. The biodiesel yield of the invention is greater than 90%. The invention is applicable to the field of biodiesel preparation.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for producing biodiesel from microalgae oil. Background technique

[0002] With the depletion of petroleum resources and the deterioration of the ecological environment caused by the combustion of fossil fuels, biodiesel has attracted widespread attention as an environmentally friendly renewable energy. The production of biodiesel is to use oil as raw material to carry out esterification reaction with methanol or ethanol to prepare the corresponding fatty acid methyl ester and ethyl ester, that is, biodiesel.

[0003] At present, there are some urgent problems to be solved in the production of biodiesel in terms of raw materials and preparation methods:

[0004] 1. Traditional biodiesel uses soybeans, corn, palm trees, jatropha and other crops as raw materials. The biggest hidden danger lies in "competition with food for land", which leads to rising food prices. The production of biodiesel from waste animal fats, cat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More