Gutter oil glycerol esterification method

Abstract

The invention discloses a gutter oil glycerol esterification method, and belongs to the biological chemical industry field, and the method includes the following conditions: glycerol addition amount is 5% to 9%, NaOH addition amount is 0.01% to 0.1%, and the reaction time is at least 3 hours. Preferably, a catalyst can be used, and the catalyst is 0.4% of zeolite. Preferably, a catalyst can be used, and the catalyst is a mixture of 0.3% of zeolite and 0.2 % of ZnO. Preferably, the glycerol addition amount is 5%. Preferably, the reaction time is 5 hours. Preferably, the NaOH addition amount is 0.05%. Beneficial effects are as follows: through gutter oil glycerol esterification for acid reduction, biodiesel synthesis yield is greatly increased, and through the best operating process of the method, the yield can be greatly improved.

Description

technical field [0001] The invention relates to a glycerol esterification method for waste oil, which belongs to the field of biochemical industry. Background technique [0002] In order to solve the increasingly acute contradiction between economic development and resources and environment, my country has formulated a series of policies and measures to promote energy conservation and emission reduction. Among them, vigorously improving the clean utilization of energy, actively developing clean energy, and accelerating the development and utilization of renewable energy such as water energy, wind energy, solar energy, and biomass energy have become important development goals. While a full-scale replacement of fossil fuels with biofuels is seen as unattainable, biofuels today can go a long way in helping to limit greenhouse gas emissions and lead the transition from an oil-dependent society to a sustainable one. Society, in fact, is currently developing or evaluating biofue...

AI Technical Summary

Problems solved by technology

The traditional alkali refining method has high loss, and the physical distillation deacidification has very strict requirements on the pretreatment of oils. At the same time, there is also the problem of high refining consumption, which is not suitable for oils with high acid value.

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