REACTOR IN CHEMICAL INDUSTRY

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Reactor Description
A reactor is a vessel used to carry out the desired reaction under a controlled set of conditions. This unit is said to be the heart of the process industry, and in fact, all the other units usually act as its auxiliaries. Depending upon their mode of operation, the reactors are either batch or continuous. Continuous reactors are further classified as mixed-flow reactors (MFR) and plug-flow reactors (PFR).
The reactor most commonly employed for hydrocracking is Trickle-Bed reactor. It consists of a fixed bed of catalyst particles contacted by a cocurrent downward flow of a mixed gas-liquid stream carrying both reactants and products. This is a special case of plug-flow reactors where the gas stream is continuous and occupies most of the volume of the reactor. The liquid stream is finely dispersed in the gas phase in the form of drops, sheets or films.


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