Estimation and control in the wet end using CO2

摘要

A method for controlling the CO2 addition in a wet end process utilizing CO2 addition is disclosed. The method includes combining a papermaking composition and CO2 to create a CO2-enriched papermaking composition, measuring or estimating at least one electrical property of either the papermaking composition or of the CO2-enriched papermaking composition, and controlling the rate of addition of CO2 to maintain the at least one electrical property within a pre-selected range of values.