Open AccessBiological Kraft Chemical Recycle for Augmentation of Recovery Furnace Capacity
Author(s) -
Stuart E. Strand
Publication year - 2001
Language(s) - English
Resource type - Reports
DOI - 10.2172/789816
Subject(s) - kraft process , kraft paper , pulp and paper industry , pulp (tooth) , waste management , mill , pulp mill , sulfur , paper mill , chemistry , environmental science , sulfide , engineering , effluent , organic chemistry , medicine , pathology
The chemicals used in pulping of wood by the kraft process are recycled in the mill in the recovery furnace, which oxidizes organics while simultaneously reducing sulfate to sulfide. The recovery furnace is central to the economical operation of kraft pulp mills, but it also causes problems. The total pulp production of many mills is limited by the recovery furnace capacity, which cannot easily be increased. The furnace is one of the largest sources of air pollution (as reduced sulfur compounds) in the kraft pulp mill