Digester Top Modification and Conversion to Isothermal Cooking of a Continuous Digester at Weyerhaeuser - Flint River, 1996 Pulping Conference Proceedings
Gary Dees
Weyerhaeuser - Flint River Operation
Market forces and environmental demands have justified the need to develop more modem methods of continuous cooking systems. The objective is to produce low kappa pulp, providing a strong and uniform pulp suitable for further delignification and bleaching.
One new method is the isothermal cooking (ITC) which has been demonstrated outside North America. This new method can be applied in new digester systems as well as existing systems. The main driving force for the Flint River Brownside Optimization Project was to upgrade their existing system to take advantage of new technology.