Patent ID: 8906202

Claim:
A method of detecting contamination of a boiler condensate in a papermaking process, the method comprising: (a) measuring an oxidation-reduction potential (“ORP”) at operating temperature and pressure at one or more locations in the boiler condensate of the papermaking process after steam has traveled from a steam generator and through at least one dryer section with one or more CSM device capable of measuring ORP at operating temperature and pressure, wherein the CSM device is in contact with the boiler condensate and in operable communication with a controller; (b) assessing the measured ORP or a calculated ORP based upon the measured ORP is within an optimum range; (c) comparing the measured or calculated ORP to an optimum ORP; (d) transmitting a signal from the controller to feed an effective amount of one or more reductants and/or one or more pH-controlling chemicals into the boiler feedwater and/or one or more satellite feed locations of the papermaking process to adjust the ORP.