Opportunities for improvements in a new White Liquor Plant project, 2010 TAPPI/PAPTAC International Chemical Recovery Conference

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During the recent years several new mills/lines have been built in Brazil. In these projects more strict requirements have been added in White liquor plant projects. These requirements include saving in power and fuel, better working environment and lower emissions. Selected concepts from some of these projects plus possible improvements are presented in this paper such as DNGC collection, zero liquid effluent, higher lime mud dryness, advanced control system and effect of bio fuel systems. A white liquor plant for a pulp mill designed for 1.5 MADt/year, using the opportunities for improvements is described. Additional items are discussed in the study such as lime kiln cooler types and lining configuration.