Device for producing dimethyl carbonate by transesterification method and using method thereof
A technology for producing dimethyl carbonate and production equipment, which is applied in the field of production equipment for the production of dimethyl carbonate by transesterification, which can solve the problems of high energy consumption in methanol recovery, complicated operation control, and low production efficiency of the equipment, and reduce energy consumption , The interface is updated quickly and the effect of fast response
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[0033]Example 1
[0034]In this example, an ester exchange method of carbonate, including the first ester exchange reactor 1-1, product separation column 2-1, a dithix exchange reactor 1-2, methanol recovery tower 2 -2, pressurized separation tower 3, atmospheric separation tower 4, propylene glycol releasing tower 5, propylene glycol rectification tower 6 and affiliated raw material tank, product can, intermediate can, condenser, reboiler, material delivery device, equipment Connect pipeline, control and display instrumentation and accessories. The first ester exchange reactor 1-1 and the second transesterification reactor 1-2 are tubular reactors that are or without jackets, and the reaction tubes are disposed or do not set a mixture of media from the medium, static spoiler .
[0035]The first transester exchange reactor 1-1 is provided with a metal carbonate, circulating methanol, methanol, catalyst inlet and a reaction material outlet; the product separation tower 2-1 is provided with...
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[0046]Example 2
[0047]Example 2 is substantially identical to Example 1, and different in the first ester exchange reactor 1-1 and the second transesterification reactor 1-2 are commercially available static mixers.
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[0048]Example 3
[0049]The present embodiment is substantially the same as that of Example 1, and the difference is that the device does not set the second ester exchange reactor 1-2, the product separation tower 2-1 tower material removes methanol recovery tower 2-2, column top recovery methanol And the residual carbonate dense pressure separation tower 4 or the pressurized separation tower 3.
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