Improvement And Application Of Stainless Steel Molecular Distillation

 Improvement of stainless steel molecular distillation

1. Ordinary distillation is separated at boiling point temperature, stainless steel molecular distillation can be carried out at any temperature, so long as there is a temperature difference between the hot and cold sides, the purpose of separation can be achieved.

2. Ordinary distillation is a reversible process of evaporation and condensation, liquid phase and gas phase can form phase equilibrium state, while stainless steel molecular distillation process. Molecules escaping from the evaporation surface fly directly to the condensation surface, and there is no collision with other molecules in the middle, and there is no possibility of returning to the evaporation surface, in theory, so the molecular distillation process is irreversible.

3. Ordinary distillation has a bubbling and boiling phenomenon; the stainless steel molecular distillation process is free evaporation on the surface of the liquid layer without bubbling phenomenon.

4. The separation factor of the common distillation separation ability is related to the ratio of the vapor pressure of the component, the separation factor of the stainless steel molecular distillation separation ability is related to the ratio of the vapor pressure and the molecular weight of the component, and can be calculated from the relative evaporation rate.

Application of stainless steel molecular distillation

In recent years, due to the development of high-precision analysis and testing equipment and the improvement of test technology, sample preparation technology has been paid more and more attention. The selective extraction technology of molecular distillation for certain types of target compounds in chromatographic analysis has developed rapidly. Molecular distillation technology can extract, separate, and enrich trace target compounds in large volume samples, and has great application potential.

In the analysis and testing of trace organic pollutants, liquid samples containing organic phosphorus and carbamates, organic chlorine, insecticides, preservatives, and other harmful substances can be pretreated. According to the verification, the technology has low distillation temperature, low system pressure, short heating time, a high degree of separation, low energy consumption, and large production capacity. It can be applied to separate and enrich volatile oil and other active ingredients from extract materials; Used in the separation of fatty oils to remove fatty acids and reduce acid value; used in the separation and enrichment of effective volatile components in volatile oils.

Application of molecular distillation in honey concentration plays an important role in the processing and production of honey products. At present, there are some rapid detection methods for honey and propolis, such as honey moisture rapid detection kit, honey sucrose rapid detection kit, and other products, but most of these products can only be detected qualitatively or semi-quantitatively.

The molecular distillation technology overcomes the shortcomings of conventional distillation, such as high operating temperature and long heating time, as well as the problems of impure smell, large amount of solvent residues, and impure impurities cleanup. It can improve the efficiency of honey concentration and reduce costs, and achieve the concentration-effect It has broad application prospects in product processing and application.

In short, as a high-tech liquid-liquid separation technology that is more popular on the market today, compared with traditional vacuum distillation technology, it successfully overcomes multiple problems and shows the advantages of mutual process simplicity, less time consumption, energy-saving, etc. Great development prospects. As for my country’s molecular distillation technology, my country’s research and application in this field started relatively late. It is necessary to further upgrade technology and improve equipment, expand its application in various industries, and achieve industrial production.

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