Abstract
Azeotropic distillation is a special distillation method for separating liquid mixtures, which has better distillation effect and obvious advantages of energy saving and consumption reduction compared with traditional distillation. In this paper, the latest research progress of azeotropic distillation technology in separation, synthesis and energy saving at home and abroad is reviewed. The research progress in separation is reflected in product separation and product purification, and the research progress in energy saving is reflected in heat pump distillation and dividing wall column distillation respectively. Existing studies have shown that azeotropic distillation technology can produce higher purity target products than conventional distillation for the separation and purification of azeotropic or near-boiling compounds. Heat pump distillation and dividing wall column distillation are used in azeotropic distillation field, resulting in obvious energy-saving effect for distillation equipment. The follow-up research direction of new separation technology with the goal of reducing energy consumption and exploring new materials as entraining agents should be studied in detail, which provides certain guidance for the development of distillation technology in China’s chemical industry.
Highlights
With the development and progress of social science technology, the development and application of new technology in China are more and more
The research progress in separation is reflected in product separation and product purification, and the research progress in energy saving is reflected in heat pump distillation and dividing wall column distillation respectively
The results showed that the concentration of furfural products obtained by heterogeneous azeotropic distillation was higher, and the equipment investment and energy consumption cost were reduced compared with conventional furfural-water distillation process
Summary
With the development and progress of social science technology, the development and application of new technology in China are more and more. Azeotropic distillation technology can solve the problem that conventional distillation technology is difficult to separate azeotropes or near-boiling substances to obtain high concentration target components [5] [6]. It has been widely concerned and studied by scholars at home and abroad because of its advantages of simple process, high purification rate, large production capacity, recyclable azeotrope, less investment and maintenance costs. The application of azeotropic distillation technology in chemical industry is summarized and prospected, which provides theoretical basis for the research and application of azeotropic distillation technology in chemical industry
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