Vapour above reactor can be condense either by provided cooler or by vapour sent to heat exchanger which can be cooled down by cooling fluid at the same pressure.

Thank you so much dear Prem Baboo

There are different methods to condense vapors above the reactor, depending on the type of vapor, the temperature, the pressure, and the desired product. One common method is to use a condenser, which is a device that transfers heat from the vapor to a cooling medium, such as air or water. The vapor cools down and changes its phase from gas to liquid. The liquid can then be collected or further processed.

A condenser can have different designs and configurations, such as shell and tube, plate, spiral, or air-cooled. The choice of condenser depends on the operating conditions, the efficiency, the cost, and the space available. For example, an air-cooled condenser uses fans to blow air over finned tubes that carry the vapor. This type of condenser is suitable for low-pressure and low-temperature vapors, and it does not require a separate cooling water system. However, it may have a lower heat transfer coefficient and a larger surface area than a water-cooled condenser1.

Another method to condense vapors is to use a low temperature separator, which is a vessel that reduces the pressure and temperature of the vapor stream. This causes some of the vapor components to condense into liquid droplets or solid crystals, which can then be separated from the remaining gas. This method is often used for natural gas processing, where water vapor and other impurities are removed from the gas2.

If you want to learn more about how to condense vapors above the reactor, you can refer to some of these sources:

• Heat Removal to Condense a Vapor Mixture, a video that explains how to calculate the amount of heat needed to condense a binary vapor mixture at its dew point using state functions.
• Reflux, an article that describes how to set up and perform a reflux experiment in organic chemistry, where a liquid mixture is heated and condensed repeatedly in a closed system.
• Condensers, an encyclopedia entry that provides an overview of different types of condensers and their applications in chemical engineering.
• Reflux, a Wikipedia article that discusses the concept and uses of reflux in various fields, such as distillation, chemical synthesis, and nuclear reactors.

https://encyclopedia.che.engin.umich.edu/condensers/

https://short-question.com/how-do-you-condense-vapor/

https://www.youtube.com/watch?v=D0MJo3%5feqhI

https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Organic_Chemistry_Lab_Techniques_%28Nichols%29/01%3A_General_Techniques/1.04%3A_Heating_and_Cooling_Methods/1.4K%3A_Reflux

https://encyclopedia.che.engin.umich.edu/condensers/

https://en.wikipedia.org/wiki/Reflux

There are some recent references about how to condense vapors above the reactor after 2018. Here are some of them:

• The Essentials of Continuous Evaporation, an article that explains the basics of evaporation as a continuous process, the different types of evaporators, and the methods to improve evaporator efficiency. It was published in May 2018 by the American Institute of Chemical Engineers (AIChE).
• Reflux, a Wikipedia article that discusses the concept and uses of reflux in various fields, such as distillation, chemical synthesis, and nuclear reactors. It was last edited in April 2021 and contains many references and external links.
• Vaporization and Vapor Pressure, a chapter from a chemistry textbook that covers the concepts of vaporization, vapor pressure, boiling point, and phase diagrams. It also includes a video link to explain the Clausius-Clapeyron equation, which relates the vapor pressure and temperature of a substance. It was updated in August 2020 by the Chemistry LibreTexts project.

https://www.aiche.org/resources/publications/cep/2018/may/essentials-continuous-evaporation

https://en.wikipedia.org/wiki/Reflux

https://chem.libretexts.org/Bookshelves/General_Chemistry/Map%3A_A_Molecular_Approach_%28Tro%29/11%3A_Liquids_Solids_and_Intermolecular_Forces/11.05%3A_Vaporization_and_Vapor_Pressure

Good luck

Thank you dear E.A. Gawad

your answers is so useful, I appreciate you

You are welcome