Filtration tray for catalytic chemical reactor

A particle separation system for a catalytic chemical reactor, wherein the particle separation system comprises a plurality of filtration sections comprising overfill systems configured to enable particle capture while keeping a pressure drop over the particle separation system constant and limiting a liquid load across the particle separation system, wherein the particle separation system comprises at least one filtration tray comprising a number of basins with basin walls for collection of liquid, thereby combining sedimentation and filtration, wherein at least one of the basin walls comprises a filter medium, and wherein a plurality of the basins are interconnected in a series of upstream and downstream basins, such that an upstream basin is configured to enable liquid to permeate through the filtering medium to a downstream filtration tray or to a downstream basin until said filtering medium is plugged by accumulating particles;

• wherein a liquid level of an upstream basin rises when the filtering medium progressively plugs, thereby exposing downstream basins to the liquid stream as the basin walls comprising the filter medium function as overfill gates, and
• wherein an open passage downstream the overfill gate is configured to have a pressure drop which is higher than the sum of the pressure drops of all serially interconnected basins with unplugged filtering medium in a filtration tray.