Membrane catalytic reactor

Abstract

The invention belongs to chemical equipment, and particularly relates to a membrane catalytic reactor. The membrane catalytic reactor comprises a feed port, a discharge port, a raw material chamber, a product chamber, a jacket, an electric stirrer and a catalytic membrane, wherein the electric stirrer is arranged above the raw material chamber; stirring paddles extend into the raw material chamber; the catalytic membrane is arranged between the raw material chamber and the product chamber; the feed port is formed on the top of the raw material chamber; the discharge port is formed at the bottom of the product chamber; and the jacket is arranged outside the raw material chamber, the catalytic membrane and the product chamber. By adopting the membrane catalytic reactor for performing esterification reaction, the energy consumption is low, and the reaction efficiency is high; the problems of separation and recovery of a catalyst are avoided, and the product cost is reduced; strongly acidic cation exchange resin powder is used as a catalytically active matter; polyethersulfone is used as a base material; a hybrid membrane which is prepared by a phase conversion method is a catalytic membrane which has higher efficiency for catalytic esterification reaction and has no problems of equipment corrosion, environment pollution and the like; and the membrane catalytic reactor has the advantages of simple equipment structure, high adaptability, easiness in control of process, convenience in operation and suitability for industrial implementation.

Description

technical field [0001] The invention belongs to chemical equipment, in particular to a membrane catalytic reactor. Background technique [0002] Monoalkyl esters of long-chain fatty acids (usually methyl esters, ethyl esters, etc.) obtained by transesterification with short-chain fatty alcohols using animal and vegetable oils and fats as raw materials. The viscosity is close to that of diesel oil, and its performance is similar to that of petroleum diesel. , namely biodiesel. Biodiesel is renewable, environmentally friendly, safe to use and store, non-toxic, does not need to change the existing diesel engine, can partially or completely replace mineral diesel, and is a degradable clean energy. [0003] In China, non-edible oils and waste animal and vegetable oils are the raw materials for the production of biodiesel, such as tung oil, jatropha oil, waste cooking oil, gutter oil, soapstock and acidified oil, etc. Acidified oil refers to the oil obtained by acidifying the by...

AI Technical Summary

Problems solved by technology

Patent 200810059776.5 prepared an immobilized enzyme membrane reactor and used it to produce biodiesel, which has high production efficiency, but the high price of immobilized enzyme greatly increases the reaction cost

Patent 200910030047.1 invented a method for preparing biodiesel through porous ceramic membrane dispersion and enhanced transesterification reaction. The reaction time is short and the yield is high. However, the catalyst inorganic base used in this method is difficult to recycle and has great corrosion on equipment

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