Esterification catalyst for preparing biological diesel oil by animal plant lipid and application method

Abstract

The invention relates to esterifying reaction catalyst used animal and vegetable grease to manufacture biological diesel oil. It belongs to using anima and vegetable grease to manufacture biological diesel oil technique field. The catalyst includes A, B, and C three components; the A can be one or many of cadmium sulfate, zinc sulphate, or aluminium sulphate; the B is sulfuric acid quadric-ammino combine copper; the C is chromic oxide and aluminium sulfide. The invention also offers the manufacturing method. The esterifying reaction catalyst can effectively control the reaction direction to make the reversible reaction toward producing fatty acid methyl ester to make fatty glyceride esterifying ratio reach above 90%. Compared with the catalyst and application method, the invention can reduce catalyst reaction temperature, shorten catalyst reaction time, reduce end product processing program, and effectively increase biological diesel oil production quality, and reduce the fabrication cost.

Description

technical field [0001] The invention belongs to the technical field of preparing biodiesel from animal and vegetable oils, in particular to a catalyst used for esterification in the process of preparing biodiesel from animal and vegetable oils and a method for preparing biodiesel using the catalyst. Background technique [0002] On the one hand, the long-term and extensive use of fossil energy has reduced the available resources, and on the other hand, it has also brought serious environmental pollution and ecological damage. Since the late 1980s, many countries have begun to adjust their energy policies, put bioenergy in an important position, and formulate corresponding research and development plans. In June 2003, the "International Renewable Energy Conference" pointed out that expanding the supply of renewable energy is an inevitable trend, and the world will accelerate the transition from the era of fossil energy to the era of renewable energy. [0003] Biodiesel is on...

AI Technical Summary

Problems solved by technology

At present, there are mainly two kinds of esterification reactions of fatty acid glycerides: chemical method and enzymatic method. The active enzyme catalyst used in the enzymatic method is sensitive to low-carbon alcohols and glycerol, and catalyst poisoning will occur after contact, so the active enzyme catalyst has not yet been formalized. Applied in the field of biodiesel production

However, the catalyst used in the current chemical method has a low yield of fatty acid methyl ester, and requires a complicated post-treatment process, a large amount of addition, and high production costs for biodiesel.

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