The present invention discloses a technological method of producing
diethyl carbonate with a reaction
distillation bulkhead column, and a device thereof. The reaction
distillation bulkhead column is characterized in that a bulkhead is arranged in the vertical direction in a conventional
distillation column, and the whole column is divided into four zones: a public distillation zone, a
reaction zone, a side line zone and a public stripping zone.
Methyl carbonate and ethyl
alcohol are used as raw materials,
diethyl carbonate and
methanol are generated in the
reaction zone through
transesterification reaction with catalyst, the byproduct
methanol with a concentration more than 95 percent is generated at the column top, the product
diethyl carbonate with a concentration more than 99.5 percent can be prepared after the catalyst and the diethyl
carbonate in the column reactor are separated, the separated catalyst, and the methyl
ethyl carbonate, ethyl
alcohol, diethyl
carbonate and
methanol, which are collected from the side line, can be recycled. The advantages of the bulkhead column and the reaction distillation are
fully developed in the present invention, the
transesterification reaction and the product separation can be realized in one column, and the equipment investment and the
energy consumption can be effectively reduced.