in a process flow system the screen provides support and provides for the ability to clean particulates from the screen the screen includes profiled wires affixed to a support where the support provides channels to distribute the fluid over the screen the support includes spacing to improve the cleaning of particulates from the screen application_number US 61123306 A description a wire screen reactor is a reactor where the screen is a series of parallel wires having a substantially uniform spacing between the wires and sufficiently small such that catalyst particles cannot pass through the spacing the wires are disposed in a parallel and vertical orientation in the reactor and catalyst can flow in the direction of wires in the wire screen the wires are affixed usually by welding to support rods that maintain the spacing between the wires the wires are usually shaped to provide for sufficient rigidity to prevent the wires from bending and thereby maintaining the spacing between the wires an example of a conventional wire screen can be seen in u s pat nos 2 046 458 and 4 276 265 which are incorporated by reference in their entirety a problem exists during the operation of a reactor using screens a catalyst or an adsorbent generates fines and the fines penetrate the screen in a cross flow reactor with channels surrounding the screen the fines collect in channels around the screen and are not easily removed from the channels this creates plugging problems as it adversely affects the flow of fluid through the channels if the amount of fines is great replacement of the screen is necessary which is an expensive operation that entails a substantial.