Molecular sieve regeneration method in acetone continuous dehydration production process

Abstract

The invention discloses a molecular sieve regeneration method in an acetone continuous dehydration production process and belongs to the technical field of molecular sieve regeneration. The regeneration method comprises the following steps: (1) performing dehydration on an acetone stock solution; (2) performing molecular sieve regeneration. The molecular sieve regeneration method disclosed by the invention has the advantages that (1) the molecular sieve regeneration method can be used for ensuring the continuous acetone dehydration; two molecular sieve dehydrators are designed, when molecular sieves in one molecular sieve dehydrator are in adsorption saturation, the molecular sieves are regenerated, and dehydration can be performed by virtue of the other molecular sieve dehydrator so as to achieve continuous dehydration and regeneration of the molecular sieves; (2) the molecular sieve regeneration method can be used for performing regeneration on the molecular sieves by making full use of waste heat steam in the production of a company, and can be used for cooling the molecular sieves and condensing a low-concentration acetone aqueous solution by using condensed water of a circulating system, while an original technology needs to consume relatively more external heating sources such as an electric heating plate, high-temperature nitrogen or heat-conducting oil.

Description

technical field [0001] The invention belongs to the technical field of molecular sieve regeneration, and in particular relates to a molecular sieve regeneration method in acetone continuous dehydration production process. Background technique [0002] At present, after the molecular sieve is saturated with moisture in the adsorbed organic matter, the molecular sieve is put into a special molecular sieve regeneration device, and the molecular sieve is heated and regenerated by an electric heating plate, high-temperature nitrogen or steam, and a vacuum pump is used to reduce the air pressure in the molecular sieve regeneration device. , so that the moisture in the molecular sieve pores can be vaporized and evaporated. [0003] Because the existing technology is to take out the molecular sieve separately for regeneration, and when the molecular sieve absorbs the moisture in the organic matter, it will also adsorb a small amount of organic matter. Therefore, if the molecular sie...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a molecular sieve regeneration method in the acetone continuous dehydration production process in view of the problems of long time-consuming molecular sieve regeneration process and high input cost in the background technology, thereby prolonging the service life of the molecular sieve

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