Glass fiber catalysts for total oxidation of CO and hydrocarbons in waste gases

Different glass fibers in woven forms were used as supports for Pt and Pd catalysts and were tested in toluene and CO total oxidation at atmospheric pressure. The catalytic activity and the ignition-extinction temperatures were investigated in relation to chemical composition of the supports, the types of active metal used (Pt, Pd), and the surface concentration of the metal. The experimental results suggest the modified glass fibers as suitable supports for efficient catalysts for complete oxidation. The catalysts can be used at moderate temperatures (150-250 degrees C) and at high gas hourly space velocity (GHSV = 30 000 h(-1)). The main design parameters of structured catalytic bed reactors, based on glass fiber catalyst, are discussed. (C) 1999 Elsevier Science B.V. All rights reserved.