Device and process for producing undecylenic acid methyl ester using methyl ricinoleate as raw material

A process for cracking methyl ricinoleate as raw material into undecylenic acid methyl ester using a microwave pyrolysis system, the process comprising the steps as follows:

• 1) setting a cracking reaction temperature at 400-600 degrees centigrade, and starting a heating process;
• 2) providing methyl ricinoleate of high purity using a feed pump, regulating a flow rate of the methyl ricinoleate using a flow meter and then heating the methyl ricinoleate using a raw material pre-heater;
• 3) after the heating, at the set cracking reaction temperature of 400-600 degrees centigrade and in a microwave catalytic reactor, cracking the methyl ricinoleate of high quality into methyl undecene and heptaldehyde gases, and then conveying the methyl undecene and heptaldehyde gases into a condenser via an outlet pipe;
• and
• 4) after conveying the methyl undecene and heptaldehyde gases into the condenser via the outlet pipe, forming a liquid product by condensing the methyl undecene and heptaldehyde gases using the condenser, then conveying the liquid product into a product tank and, after conveying the liquid product into the product tank, pumping the liquid product into a distillation unit using a discharge pump, and then purifying the liquid product to obtain the undecylenic acid methyl ester.