Process for coreless molding and curing a composite skin-stiffeners assembly

Abstract From the Canadian patent

An apparatus for testing performance of a catalyst in a gaseous phase catalytic reaction for a given reactant comprises a reactor, means for introducing a predetermined quantity of fluid reactant into the reactor and means for withdrawing the reaction mixture, including reaction products, from the reactor after a predetermined residence time. The reactor comprises a confined reactor volume with an upflow zone and a downflow zone. A device circulates fluids upwardly through the upflow zone and downwardly through the downflow zone where particulate catalysts in the upflow zone as fluidized by the upward flow of the fluid. The circulating device is adapted to circulate the fluid about the …