Low temperature distillation
Low-temperature distillation is a commonly used separation technology that is widely used in chemical, pharmaceutical, food and other industries. It separates the different components of the mixture by controlling the temperature and pressure for purification and concentration.
The working principle of low-temperature distillation is based on the difference in boiling point of different components. At low temperatures, the mixture is heated below its boiling point to evaporate the volatile components in it, and then the vapor is cooled and collected through a condenser. The refractory components, on the other hand, remain in a liquid state and can be separated by draining the residue from the bottom of the liquid.
Cryogenic distillation has the advantage of being able to operate at lower temperatures, which reduces energy consumption and the impact on the heat sensitivity of the material. In addition, since the cryogenic evaporator is able to effectively separate the components in the mixture, a high-purity product can be obtained.
In practical applications, there are many types of low-temperature distillation, including single-effect, multi-effect, and heat pump type. Single-effect cryogenic evaporators are simple forms that are suitable for handling small-scale mixtures. The multi-effect cryogenic evaporator improves energy efficiency through multi-stage evaporation and condensation. The heat pump type cryogenic evaporator uses heat pump technology to convert low-temperature waste heat into high-temperature heat energy, which further improves the energy utilization efficiency.
In general, low-temperature distillation is an important separation technology with a wide range of application prospects. With science and technology.