Experience and Learning from FT-NIR Installations in North American Pulp Mills for Applications in Digester, Recovery, Recaust, and ClO2 Generator, 2009 TAPPI Engineering, Pulping, Environmental Conference

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Over the past 15 years, a number of mills in North America have installed FT-NIR-based process analyzers in various areas of the mill for process automation and control. Through applications on digesters, recausticizing, recovery, and ClO2 generators, there has been continuing maturation, improvement in uptime and reliability, and new developments in measurement properties as well as applications. This paper reviews some of these installations and examines the criteria for a successful installation. We will examine an early installation in each of 3 areas of the mill, digester, recaust and ClO2, and compare those installations with current successful installations.