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Article: Selective removal of chloride and potassium in kraft pulp mills.(Nonprocess Elements)
- Article from:
- Solutions - for People, Processes and Paper
- Article date:
- April 1, 2003
- Author:
CopyrightCOPYRIGHT 2003 Paper Industry Management Association. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Application: Mills can use the information from this research to help address boiler plugging problems caused by high levels of chloride and potassium.
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Chloride (Cl) and potassium (K) are two nonprocess elements (NPEs) that can accumulate to high levels in highly closed pulp mills and cause serious problems, particularly in the recovery boiler operation. Based on data from two pulp mills, we collected the following information for chloride and potassium: the chemical composition of precipitator ash where these two NPEs accumulate, input and output mass flow streams entering and leaving the process, and the corresponding enrichment factors ...