Device and method for producing ethyl methyl carbonate and diethyl carbonate

The invention discloses a device and a method for producing ethyl methyl carbonate and diethyl carbonate, and relates to the technical field of production of ethyl methyl carbonate and diethyl carbonate. Comprising a catalytic rectifying tower, a methanol refining tower, a product crude separation tower, a catalytic rectifying tower return tank, a product crude separation tower return tank, a catalytic rectifying tower compressor, a catalytic rectifying tower heat exchanger, a primary pervaporation membrane assembly, a secondary pervaporation membrane assembly, a mixer, a methanol refining tower heat exchanger, a product crude separation tower heat exchanger and a product crude separation tower compressor. According to the method, a traditional homogeneous catalytic rectification technology is replaced with a heterogeneous catalytic rectification technology, traditional alkali metal sodium alkoxide is replaced with a high-efficiency solid catalyst, and the problems that the catalyst is additionally separated,