Trickle-bed reactor

Chemical reactor

A trickle-bed reactor (TBR) is a chemical reactor that uses the downward movement of a liquid and the downward (co-current) or upward (counter-current) movement of gas over a packed bed of (catalyst) particles. It is considered to be the simplest reactor type for performing catalytic reactions where a gas and liquid are present in the reactor and accordingly it is extensively used in processing plants. Typical examples are liquid-phase hydrogenation, hydrodesulfurization, and hydrodenitrogenation in refineries and oxidation of harmful chemical compounds in wastewater streams or of cumene in the cumene process. Also in the treatment of waste water trickle bed reactors are used where the required biomass resides on the packed bed surface.

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