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Distillation Column Cooling
Temperature measurement is a common control parameter in distillation cooling and heating processes. Depending upon the application and process fluid, temperature control may be used for cooling distillate to condense high volatility products into liquid phase, or heating of process fluid to vaporize the high volatility components for easier separation.
Temperature control relates to product quality, process optimization and stability, resulting in improved plant safety and reduced process energy costs. While a seemingly simple parameter, understanding the importance of temperature measurement is critical to running a distillation column at peak efficiency.
Distillation Column Temperature Control Technology And Solutions
Distillation Cooling Methods
Distillate cooling typically is accomplished via several methods: fin-fan cooling, refrigeration or cooling towers. The first two methods are used to cool process vapors, causing them to condense into liquids that can be recirculated for additional processing. Cooling towers are used extensively in chemical processes to cool steam and heating water and recirculate the condensate to plant utilities or reboilers, where it can be reheated and used for many purposes.
Fin-fan cooling works by running process vapors through a tube bundle. These bundles have fins around the outside, increasing the surface area of the tube and speeding the cooling process. Large fans are used to create airflow over the tubing. Fan speed is adjusted via a variable-speed motor to provide sufficient airflow to reach the desired cooling temperature while minimizing energy costs.
Refrigerant systems run a coolant though tubing. Compression and expansion create large temperature drops to cool process vapors running through the cooling area. This method typically is used in applications where extremely low cooling temperatures are needed.
Cooling towers are air-cooled systems that work via direct heat transfer between air and the water being cooled. In cooling towers, air and water are brought into direct contact to reduce water temperature. As the temperature of the water drops, a small amount of it evaporates, reducing the temperature of the water being circulated through the tower. Water that has been heated by other processes is pumped to the cooling tower, where it first is sprayed through nozzles to create small droplets, exposing more of the surface area of the water for maximum air-water contact. Once cooled, the water can be sent to various parts of the plant. It can be used for plant utilities or sent to boilers to produce steam needed for processes such as distillation columns. Cooling towers are widely used in chemical processing because they require no special coolants and are relatively energy efficient.
Distillation columns (distillation towers) are made up of several components, each of which is used either to transfer heat energy or enhance material transfer. A typical distillation column consists of several major parts:
- A vertical shell where separation of the components is carried out.
- Column internals such as trays, or plates, or packings that are used to enhance component separation.
- A reboiler to provide the necessary vaporization for the distillation process.
- A condenser to cool and condense the vapor leaving the top of the column.
- A reflux drum to hold the condensed vapor from the top of the column so that liquid (reflux) can be recycled back to the column.
Chillers
Precision Chillers / Small Chillers (Custom Designs)
The chiller can be widely used in various industries and laboratories, and supports customized design.
| Temperature range | -18°C ~ +30°C | +5°C ~ +35°C series |
| Cooling Capacity | 0.35 ~ 0.9kW | 1.8 ~ 50kW |
Recirculating Chillers (Custom Designs)
Our recirculating chiller adopts low-temperature refrigeration technology, the temperature is as low as -120℃, and various accessories are customizable.
| Temperature range | -25°C ~ +30°C series | -45°C ~ +30°C series | -60°C ~ -20°C series | -80°C ~ -20°C series | -120°C ~ -70°C series |
| Cooling Capacity | 0.8 ~ 30kW | 0.75 ~ 12kW | 0.4 ~ 6kW | 0.2 ~ 6kW | 0.3 ~ 5kW |
Low Temperature Chillers (Custom Designs)
We specialize in the production of low-temperature chillers with a temperature control range as low as -150°C, which can meet the refrigeration needs of different industries.
| Temperature range | -25°C ~ -5°C series | -45°C ~ -10°C series | -60°C ~ -10°C series | -80°C ~ -30°C series | -110°C ~ -50°C series | -150°C ~ -110°C series |
| Cooling Capacity | 12 ~ 360kW | 6 ~ 180kW | 6 ~ 180kW | 4 ~ 180kW | 2 ~ 120kW | 2.5 ~ 11kW |
Chillers/Heaters Combo
Chiller/Heater Units
Temperature Control Range: -120°C to +350°C
Note: Both Air Cooled And Water Cooled Are Available. Explosion Proof Cabinet Can Be Customized.
| Temperature range | -40 ~ +200°C series | -10 ~ +200°C series | -25 ~ +200°C series | -25 ~ +300°C series | -45 ~ +250°C series | -45 ~ +300°C series | -60 ~ +250°C series | -60 ~ +300°C series | -70 ~ +250°C series | -80 ~ +250°C series | -90 ~ +250°C series | -100 ~ +100°C series | -25 ~ +200°C one machine for two reactors | -40 ~ +200°C one machine for two reactors |
| Cooling Capacity | up to 3kW | up to 15kW | up to 200kW | up to 200kW | up to 200kW | up to 25kW | up to 60kW | up to 25kW | up to 15kW | up to 80kW | up to 80kW | up to 80kW | up to 10*2kW | up to 10*2kW |
Recirculating Heater/Chiller
Temperature Control Range: -45°C to +250°C
Note: Both Air Cooled And Water Cooled Are Available. Explosion Proof Cabinet Can Be Customized.
| Temperature range | -25°C ~ +200°C series | -45°C ~ +250°C series |
| Cooling Capacity | up to 15kW | up to 15kW |
Cooling and Heating Systems (WTD series) (Custom Designs)
（Micro channel / tube reactors specialized）
Temperature Control Range: -70°C to +300°C
Specialized design for micro channel (small liquid holding capacity, strong heat exchange capacity, circulation system high pressure drop)
| Temperature range | -70°C ~ +300°C | -45°C ~ +250°C | -70°C ~ +200°C |
| Cooling Capacity | 1.1 ~ 7.5kW | 1.5 ~ 5.5kW | 11 ~ 50kW |
Heating Circulators
Temperature Control Range: +50°C to +300°C
Note: Both Air Cooled And Water Cooled Are Available. Explosion Proof Cabinet Can Be Customized.
| Temperature range | +50°C ~ +200°C series | +50°C ~ +300°C series | +50°C ~ +300°C series |
| Heating Capacity | up to 38kW | up to 200kW | up to 95kW |
Contact Us For More Information
Email: info@lneya.com WeChat ID: +8615251628237 WhatsApp: +86 15251628237
Why Choose Us?
LNEYA is a professional temperature control equipment manufacturer with decades of experience in research and development in the field of high and low temperature control, and its products are used in various industries. We can design any temperature control system according to your requirements, whether it is accessories: pumps, heat exchangers, condensers, etc., or refrigeration types: air-cooled, water-cooled, multiple cooling circuits, etc.
Our Services
Customized Designs—Our products can be built in any type of variation to your exact specifications.
Competitive Pricing—We offer great prices on equipment that exceeds industry standards, guaranteeing the highest quality.
Same Day Quotes—Get a quote for your project today! We often provide custom quotes in as little as 30 minutes.
24/7 Customer Service—We are always here for you. Whether you have a question or need a quote, there’s always somebody here to communicate with you 24/7.
Durable and Reliable Equipment—Our products are built with premium-grade materials, and we offer competitive warranties on all custom chillers.
Contact Us Today
Contact us today and learn more about our abilities in manufacturing custom chillers. Our staff welcomes any application challenges concerning your custom chillers.
