Production device and preparation method for compound biodiesel

Abstract

The invention discloses a production device and a preparation method of compound biodiesel. The production device comprises a reaction kettle, wherein a catalyst reaction layer, a high-energy static mixing layer and a standing layering kettle are arranged in the reaction kettle, an ultrasonic cross flow board is arranged in the catalyst reaction layer, a high-energy static mixer is arranged in thehigh-energy static mixing layer; the production device further comprises a rectifying tower and a flash tower, wherein an emulsifying machine is communicated to the top of the rectifying tower, and aglycerinum separating tower is communicated to one side of the flash tower; the preparation method comprises the following steps: (1) carrying out counter-current contact reaction of a grease material and methanol in gas phase state; (2) standing for layering of reaction product; (3) taking the lower layer as a polar product, and taking the upper layer as a crude oil product; (4) carrying out treatment on the crude oil product by the rectifying tower and the emulsifying machine, thus obtaining the compound biodiesel; (5) carrying out treatment on the polar product by the flash tower and the glycerinum separating tower to obtain a byproduct, namely glycerinum. The production device is simple in structure design and promotes collision among molecules of reactants, and the preparation process is mild in conditions, low in cost and high in output.

Description

technical field [0001] The invention relates to a production device and a preparation method of composite biodiesel, belonging to the technical field of production and preparation of composite biodiesel. Background technique [0002] With the development of economy, energy shortage and environmental pollution are the great challenges that human society is facing at present. In order to maintain the sustainable development of their respective countries, many countries are vigorously developing energy alternatives. As a high-quality energy substitute, compound biodiesel has excellent environmental protection characteristics and renewability. Vigorously developing compound biodiesel is of great significance for promoting energy substitution, reducing environmental pressure, and controlling air pollution. Composite biodiesel is a clean renewable energy source. It is an oxygen-containing clean fuel, which is produced by the esterification reaction of renewable oils such as rapese...

AI Technical Summary

Problems solved by technology

At present, the synthesis technology of compound biodiesel is not mature enough, and the conditions of the synthesis process are high and difficult to control; in addition, the actual application efficiency of the production device of compound biodiesel in the prior art is low, the reaction is insufficient, and it is easy to cause waste of raw materials, and The economic cost of running is also higher

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