Why must the steam in the reaction vessel be condensed and recycled?
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Why must the steam in the reaction vessel be condensed and recycled? There is a pipe for the steam inside the reactor on top of it; this pipe is connected to a condenser, which is used to condense the high-temperature steam inside the reactor, allowing it to flow back into the reactor. What is the purpose of this process? Why not seal the reactor lid tightly?
The return pipe carries the condensate formed in the condenser back to the reaction vessel; by adjusting the flow rate of this condensate, it is possible to control the temperature. This allows meeting the temperature requirements of the reaction vessel’s production process, as well as the requirements regarding the rate of temperature increase during production.
The temperature inside the reactor can be controlled by regulating the flow rate of steam or cooling water supplied to the jacket of the reactor
This can be used to control the temperature and pressure inside the reactor, while also reducing moisture loss.
The part that condenses and returns is one of the components inside the reaction vessel; after turning into a liquid phase, it returns back into the vessel； The remaining gas-phase components, after condensation, are not recycled but are disposed of as waste.
Is this reflux condenser necessary or not, depending on the reaction conditions in the reactor?
This is an open-chain reaction, a reaction that takes place at atmospheric pressure； If you seal the reaction vessel, it becomes a closed-system reaction, a pressure-driven reaction, as you need to maintain reflux; this means that the heating device in the reaction vessel is constantly in operation. The pressure inside the vessel in a closed-system reaction will keep increasing until heating and cooling reach an equilibrium ； And it is impossible, or at least very difficult, to control the temperature and pressure in most closed reactions.
This post was last edited by ylxlzjz on 2023-10-31 at 15:45