In the hydroprocessing reactor, the hydrocarbon feed is reacted with hydrogen over a fixed bed of catalyst at an elevated temperature and pressure. For petroleum fractions heavier than naphtha, the mixture of hydrocarbon feed and hydrogen typically consists of two phases: a liquid phase and a vapor phase.

In order to use the catalyst efficiently, the liquid and the vapor must be distributed uniformly across the reactor cross-section. Our standard Distributor Trays is multi chimneys type which are generally composed of lateral openings (holes notches spaced vertically up the axis of the chimney) for liquid and superior apertures for gas.