Molecular Distillation Unit
2. Feeding Flask Capacity: 1L-5L
3. Applications: Distillation, evaporation, concentration, and stripping of heat sensitive products, pharmaceutical industry, fine Chemicals, essence, petrochemical industry, plastic industry, etc.
4. Turnkey Solution: Evaporator, heating and cooling circulator, vacuum pump
5. Manufacturer: ACHIEVE CHEM Xi’an Factory
6. 16 years experiences on Chemical Equipment
7. CE and ISO certification
8. Professional shipping
9. One-year worry-free warranty
10. 24/7 after-sales service
Description
Technical Parameters
The main function of molecular distillation unit is to use molecular distillation technology to separate liquid mixtures. This device achieves the separation of liquid mixtures by controlling the difference in evaporation rates of each component in the feed liquid in a high vacuum environment. This separation process can be carried out at very low pressure, usually 10-10mmHg. Under this pressure, the average free path of gas molecules becomes larger, allowing vapor molecules vaporized from the evaporating surface to directly reach the condensing surface and condense without colliding with other molecules.
Efficient and precise separation and purification technologies have always been a hot research and application topic in many industries such as chemical, petroleum, pharmaceutical, and food. It as an efficient separation equipment designed based on the principle of intermolecular interaction, has been widely used in these fields due to its unique advantages.
Product Introduction
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The molecular distillation device mainly consists of the following parts:
A heater:
Also known as a distillation kettle, is the part used to heat a mixture and evaporate it. Usually made of high-temperature resistant materials with heating elements inside (such as heating sleeves or heating rods). The function is to provide the heat required for material evaporation. In the process of molecular distillation, the heater heats the material to a certain temperature, causing the low boiling components to evaporate.
Evaporator:
The evaporator is the core part of a product, which provides sufficient surface area to evaporate the low boiling components in the material. Evaporators usually adopt cylindrical, spherical and other structures, and materials that are resistant to high temperature and corrosion need to be selected to ensure their stable operation in high temperature and high pressure environments.
Condenser:
Used to cool steam and condense molecular distillation unit into a liquid for easy collection, playing a role in collecting pure substances during device. The interior of the condenser is usually cooled with cooling water or refrigerant. Common types of condensers include cold water condensers, chiller condensers, etc.
Seperator:
The separator is used to separate the condensed liquid from the unexpired material. Separators usually use methods such as gravity separation or centrifugal separation.
Control system:
The control system is used for overall control of the product, including adjustment and monitoring of parameters such as temperature, pressure, and flow rate. Control systems typically use automated control systems such as PLC or DCS to achieve precise control and remote monitoring.
Fractionation system:
Fractionation system is usually composed of molecular sieve modules, used to separate molecules of different components in a mixture. The molecular sieve module includes fillers, separators, trays, etc., to provide a large surface area and contact opportunities, increasing the interaction between molecules.
Baffles:
Baffles used in fractionation systems help to increase the contact area between the mixture and the molecular sieve, and provide a flow path to promote effective separation.
Vacuum pump:
Used to create and maintain a vacuum environment within the device to reduce operating pressure and evaporation temperature, further promoting the occurrence of device.
Feed system:
Introduce the mixture into the product. The feeding system may include feeding pipes, nozzles, nozzles, etc.
Collection system:
Collect pure substances separated by distillation. The collection system usually includes collection bottles, condenser outlet pipes, etc.
Control instrument:
Monitors and controls parameters such as temperature, pressure, and flow rate during the product process. The commonly used instruments and meters include thermometers, pressure gauges, flow meters, automatic control systems, etc.
Types
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It as an efficient separation technology, plays a crucial role in fields such as chemical, pharmaceutical, food, and environmental protection. It is based on the differences in boiling points of different components at different temperatures, and achieves molecular level separation by controlling temperature and pressure. With the advancement of technology and industrial development, the types of devices are becoming increasingly diverse to meet the needs of different fields and processes.
Types of equipment
● Falling film molecular distillation unit
The falling film device is an early form of device technology, which has a simple structure and mainly consists of a heater and a condenser. In a falling film device, the material enters the evaporator through the feed system, forms a liquid film under the action of gravity, and flows downwards along the inner wall of the evaporator. The heater heats the liquid film, causing the low boiling components to evaporate and condense into a liquid through the condenser, achieving separation from the high boiling components.
The advantages of a falling film device are its simple structure and convenient operation, but due to the thick liquid film, the separation efficiency is relatively low. In addition, due to the fluctuation and rolling of the liquid film during the flow process, the separation effect is unstable. Therefore, the application of falling film devices in modern industry is gradually decreasing, but they still have certain application value in some situations where separation efficiency is not high.
● Scratching membrane device
The scraping film device is an efficient separation equipment improved on the basis of the falling film method. The device is equipped with one or more film scrapers inside the evaporator, which form a thin and uniform liquid film on the inner wall of the evaporator, and continuously update the liquid film through rotation or reciprocating motion, thereby improving separation efficiency. The scraping film device has been widely used in modern industry due to its advantages of thin liquid film, high separation efficiency, and stable operation.
In the late 1980s, China began to carry out research and process application of scraped film equipment. After years of development and improvement, the scraping film device has formed various models and specifications, which can meet the needs of different industries and processes. For example, the scraping membrane device is used for the purification and separation of drugs in the pharmaceutical industry, and for the extraction and purification of flavor substances and essence in the food industry.
● Centrifugal device
A centrifugal device is a device that utilizes centrifugal force to form a membrane and achieve efficient separation. The device throws materials towards the inner wall of the centrifuge through a high-speed rotating centrifuge, forming a thin and uniform liquid film. Under the action of centrifugal force, the low boiling components in the liquid film quickly evaporate and condense into a liquid through the condenser, achieving separation from the high boiling components.
The centrifugal device has the advantages of high separation efficiency, stable operation, and strong adaptability. Due to the centrifugal force, the liquid film updates quickly and can quickly reach separation equilibrium. In addition, centrifugal devices can also adapt to difficult to separate material systems such as high viscosity and high boiling point. Therefore, centrifugal devices have been widely used in the petroleum industry, chemical industry, and other fields.
In summary, there are various types of devices, each with its own characteristics. The falling film device has a simple structure and convenient operation, but its separation efficiency is relatively low; The scraping film device has the advantages of thin liquid film, high separation efficiency, and stable operation; The centrifugal device has the characteristics of high separation efficiency and strong adaptability.
When selecting a unit, comprehensive consideration should be given to specific material properties, separation requirements, and economic conditions. With the advancement of technology and industrial development, the types and technologies of devices will continue to be updated and improved, providing strong support for the development of related industries.
Applications
As an advanced separation technology equipment, plays a crucial role in modern chemical, pharmaceutical, food, environmental protection and other fields. It is based on the differences in boiling points of different components at different temperatures, and achieves efficient separation and purification of liquid mixtures through processes such as sublimation, condensation, and re deposition.
The petroleum industry is one of the important fields for the application of product. In the petroleum refining process, molecular distillation units are widely used to separate various hydrocarbon components in crude oil, such as gasoline, diesel, kerosene, and lubricating oil. This separation process not only improves the quality of fuel and the production of petroleum products, but also helps to achieve rational utilization of resources. According to statistics, using devices for petroleum refining can significantly improve the purity and yield of products, reduce production costs, and bring considerable economic benefits to enterprises.
In the chemical industry, the application of product is mainly reflected in two aspects: first, separating and extracting products or raw materials from chemical reactions; The second is to prepare high-purity chemicals. For example, in esterification reactions, it can separate esters and by-products, improving the purity and yield of esters. In addition, it can also be used to prepare high-purity organic solvents, catalysts, and other chemicals, providing strong support for the development of the chemical industry.
The pharmaceutical industry is another important field for the application of product. In the pharmaceutical process, it is necessary to purify and separate drugs to improve their purity and safety. Product have been widely used in the pharmaceutical industry due to their high efficiency and purity. Specifically, the application of product in the pharmaceutical industry is mainly reflected in the following aspects:
(1) Drug purification: It can separate drugs from other impurities, improving the purity of drugs. This is crucial for ensuring the quality and safety of drugs. According to research, using product for drug purification can significantly improve the purity and efficacy of drugs.
(2) Solvent recovery: In the pharmaceutical process, a large amount of organic solvents are usually required. It can separate organic solvents from reaction mixtures and recycle them, thereby reducing costs and environmental pollution. This application not only improves the environmental friendliness of the pharmaceutical process, but also brings economic benefits to enterprises.
(3) Moisture removal: In some cases, the moisture content of a drug may affect its stability and quality. It can be used to remove water from drugs, thereby improving the quality and stability of drugs. This application helps to extend the shelf life and efficacy of drugs.
In the food and beverage industry, it are mainly used to extract aromatic substances, essence and flavor compounds from food and beverages. These substances are crucial for improving the taste and quality of food and beverages. High purity aromatic substances and essence can be obtained through extraction and purification by product, which provides strong support for the production of food and beverage. In addition, it can also be used for distillation, reducing alcohol content, or removing impurities in the alcohol brewing process, providing more possibilities for the development of the food and beverage industry.
In the field of environmental protection, it are mainly used to treat organic pollutants in wastewater and exhaust gas. Through processes such as separation and concentration, useful substances can be recovered from waste or negative impacts on the environment can be reduced. For example, in the process of wastewater treatment, it can separate organic pollutants from wastewater and carry out recycling or harmless treatment. In the process of waste gas treatment, it can separate harmful substances from the waste gas and convert them into harmless substances or recycle them. This application helps to reduce environmental pollution and resource waste, making a contribution to the cause of environmental protection.
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