The increased use of more efficient and more expensive catalyst demand more effective contamination removal. Installation of a Triton filter/coalescing system upstream will remove solid particulate and aerosols that could damage or plug a catalyst bed. A particulate only filter is often installed downstream of many catalysts to capture the fines that can carryover. If the fines are to be re-used a surface filtration unit would allow the fines to collected and returned to the system.