Organic solvent dehydration equipment with rectifying tower and pervaporation membrane system coupled
A technology of permeating gasification membrane and organic solvent, applied in fractionation, distillation separation, chemical instruments and methods, etc., can solve problems such as inability to remove water, inability to achieve recycling and utilization effects, etc.
Inactive Publication Date: 2020-10-23
孙腾民
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[0031] The present invention provides such Figure 1-2 The organic solvent dehydration equipment shown in a rectification tower coupled with a pervaporation membrane system includes a rectification tower 1 and a pervaporation tank 2. By being provided with a rectification tower 1 and a pervaporation tank 2, the The rectification tower 1 is combined with the pervaporation membrane system to remove the water in the raw material, increase the rectification effect, improve work efficiency, and save energy consumption. , and the pervaporation tank 2 is flanged on both sides of the rectification tower 1, and is directly provided with a sealing ring, which is conducive to sealing the connection between the permeation gasification tank 2 and the rectification tower 1. The rectification A raw material storage tank 3, a permeate storage tank 4 and a raffinate storage tank 5 are arranged around the tower 1, and a membrane module 6 is arranged inside the pervaporation tank 2, and the insi...
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The invention discloses organic solvent dehydration equipment with a rectifying tower and a pervaporation membrane system coupled. The organic solvent dehydration equipment comprises a rectifying tower and a pervaporation tank; a raw material storage tank, a penetrating fluid storage tank and a residual liquid storage tank are arranged around the rectifying tower; a membrane assembly is arranged in the pervaporation tank; a liquid-phase space and a gas-phase space are respectively arranged at a part, located at two sides of the membrane assembly, in the pervaporation tank; a feeding pipe is arranged between one side of the liquid-phase space and the raw material storage tank, a first three-way valve, a heat exchanger, a feeding pump, a preheater and a heater are sequentially arranged on apart, located between the raw material storage tank and the pervaporation tank, of the feeding pipe, a vacuum pipe is arranged at one end of the gas-phase space, and a vacuum pump is arranged betweenthe two ends of the vacuum pipe. By arranging the rectifying tower and the pervaporation tank, the rectifying tower and the pervaporation membrane system are effectively combined, water in raw materials is removed, the rectifying effect is improved, the working efficiency is improved, and energy loss is reduced.
Description
technical field [0001] The invention belongs to the technical field of fine chemicals, and in particular relates to an organic solvent dehydration device coupled with a rectification tower and a permeation gasification membrane system. Background technique [0002] Pervaporation is a membrane separation process with phase change. The mass transfer driving force in the pervaporation process is the concentration difference on both sides of the membrane or the partial pressure difference of the permeated components on both sides. Any driving force that can produce this driving force All technologies can be used to realize the pervaporation process. In the process of pervaporation, the pressure on the upstream side of the membrane is generally maintained at normal pressure, while the downstream side of the membrane maintains the partial pressure difference of the components in three ways: [0003] 1) The pervaporation of the oil body mixture is the most common one; it relies on...
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IPC IPC(8): B01D3/14B01D3/32
CPCB01D3/145B01D3/32
Inventor 孙腾民张松涛
Owner 孙腾民