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Magazine articles
Mill experience of calcium carbonate scale formation in green liquor pipelines, TAPPI Journal August 2020
ABSTRACT: Experience of hard calcite (CaCO3) scale formation in green liquor pipelines at four kraft pulp mills was systematically investigated to determine if there is any correlation between the severity of the scaling problem at each mill and the design and operating conditions of its causticizing plant. The results show that the high degree of supersaturation of calcium ions (Ca2+) in the liquor is the main contributing factor. Mills that operate at a lower green liquor total titratable alkali (TTA), higher causticity, and a larger liquor temperature drop are more likely to produce a green liquor that is supersaturated with Ca2+, and thus experience more severe scaling problems. In order to minimize CaCO3 scaling, the green liquor handling equipment should be operated as steady as possible to avoid conditions that allow Ca2+ to be supersaturated. The strategies include minimizing variations in liquor TTA, insulating the green liquor pipelines to reduce temperature gradients, and adding lime mud to weak wash to provide seeds for precipitation to occur on mud particles instead of on metal substrate.
Journal articles
Magazine articles
Combustion behavior of kraft black liquor droplets from hot
Combustion behavior of kraft black liquor droplets from hot water pretreated hardwood and softwood chips, November 2016 TAPPI JOURNAL
Magazine articles
Managing technology - a critical contribution to competitiveness, TAPPI JOURNAL, June 2000, Vol. 83(6)
Managing technology - a critical contribution to competitiveness, TAPPI JOURNAL, June 2000, Vol. 83(6)
Magazine articles
Mount st. helens - 20 years of recovery, TAPPI JOURNAL, May 2000, Vol. 83(5)
Mount st. helens - 20 years of recovery, TAPPI JOURNAL, May 2000, Vol. 83(5)
Magazine articles
Health check: market pulp, TAPPI JOURNAL, November 2000, Vol. 83(11)
Health check: market pulp, TAPPI JOURNAL, November 2000, Vol. 83(11)
Magazine articles
Pitfalls of trading market pulp on the internet, TAPPI JOURNAL, November 2000, Vol. 83(11)
Pitfalls of trading market pulp on the internet, TAPPI JOURNAL, November 2000, Vol. 83(11)
Magazine articles
Annual chip excellence award recognizes suppliers, TAPPI JOURNAL, November 2000, Vol. 83(11)
Annual chip excellence award recognizes suppliers, TAPPI JOURNAL, November 2000, Vol. 83(11)
Magazine articles
Modeling trs and so2 emissions from a kraft recovery boiler using an artificial neural network, TAPPI JOURNAL, November 2000, Vol. 83(11)
Modeling trs and so2 emissions from a kraft recovery boiler using an artificial neural network, TAPPI JOURNAL, November 2000, Vol. 83(11)
Magazine articles
A novel application of tappi t 277 to determine macro stickies disintegration and agglomeration in the recycle process, TAPPI JOURNAL, November 2000, Vol. 83(11)
A novel application of tappi t 277 to determine macro stickies disintegration and agglomeration in the recycle process, TAPPI JOURNAL, November 2000, Vol. 83(11)
Magazine articles
What does it take to get my paper published?, TAPPI JOURNAL,
What does it take to get my paper published?, TAPPI JOURNAL, March 2002, Vol. 1(1) (62KB)