Esterification reaction tower for producing biodiesel

Abstract

The invention discloses an esterification reaction tower for producing biodiesel. The invention is characterized by mainly comprising a tower body, a redistributor, deflector plates, an access hole, a distributor, a gas-phase methanol inlet, a discharge port, a water outlet, a heat-conducting oil inlet, a heat-conducting oil outlet, a heat-conducting oil jacket, a feed port, a water inlet, a safety valve, a thermometer, a pressure meter and a gas-phase methanol outlet, wherein the outer bottom of the tower body is respectively provided with the gas-phase methanol inlet and water outlet; the distributor on the inner bottom is communicated with a pipeline of the gas-phase methanol inlet; the lower part is provided with the heat-conducting oil jacket, heat-conducting oil inlet, heat-conducting oil outlet and access hole; the inner top is provided with the redistributor; the inner cylindrical wall is uniformly distributed with the plurality of deflector plates; and the outer top is provided with the feed port, water inlet and gas-phase methanol outlet. The invention has the characteristics of no need of catalyst, no environmental pollution, low reaction pressure, low reaction temperature, low energy consumption, low investment and operating cost, wide application range of raw materials, high yield and the like.

Description

Technical field [0001] The invention belongs to the technical field of chemical equipment, in particular to an esterification reaction tower for producing biodiesel. Background technique [0002] With the increasingly tense international energy situation, especially under the background of the country's vigorous promotion of energy conservation and emission reduction, biodiesel, as a renewable new energy source, can be used as a substitute for petroleum fuels, and has gradually attracted widespread attention from the whole society. "Biodiesel The biggest feature of "diesel" is its renewable nature, and the resource will never be exhausted. Biodiesel can be produced from vegetable oil and animal oil, but at present, fatty acids, swill oil, urban gutter oil, and refining waste are mostly used as raw materials for production. Waste edible oil refers to the non-edible animal and vegetable oil produced in the production and operation process of catering restaurants and food proc...

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Problems solved by technology

[0003] The purpose of the present invention is: to overcome existing biodiesel production technology, need catalyst, serious environmental pollution, high reaction pressure, temperature, high requirement to equipment, high investment and operation cost, high requirement to raw material, poor selectivity, reaction Shortcomings such as long time, high energy consumption, and low yield provide a method that does not require the use of catalysts, has no environmental pollution, low reaction pressure and reaction temperature, low energy consumption, low investment and operating costs, and a wide range of raw materials. Esterification reaction tower for producing biodiesel with high yield

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