Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Committees
Event Type
Collections
Journal articles
Magazine articles
Continuous digester rapid thinning, TAPPI Journal June 2024
ABSTRACT: Carbon steel continuous digesters built after the early 1980s are fully stress relieved, so stress corrosion cracking has been less of a concern. However, these newer digesters were designed to run modified cooking processes that have turned out to be much more corrosive than those running with conventional cooking. This corrosion is mainly associated with softwood digesters and appears to be flow related. Average corrosion rates of 40 mil/year are possible on the exposed shell between the wash and extraction screens. The corrosion patterns are visually distinct from surfaces in the upper digester and below the wash screens. This paper goes into practical detail on where it occurs, the causes, visual identification, inspection planning and results evaluation, and finally, how to mitigate this damage, which consists of applying a corrosion resistant barrier. Some discussion on dealing with general corrosion throughout the digester is included.
Journal articles
Magazine articles
Riding the Rails, Paper360º, July/August 2017
Riding the Rails, Paper360º, July/August 2017
Journal articles
Magazine articles
Pulping and bleaching of Malaysian oil palm empty fruit bunc
Pulping and bleaching of Malaysian oil palm empty fruit bunches, TAPPI JOURNAL June 2017
Journal articles
Magazine articles
Paper Chemistry: What’s New, What’s Next, Paper360º March/
Paper Chemistry: What’s New, What’s Next, Paper360º March/April 2017
Journal articles
Magazine articles
Lignin value prior to pulping (LVPP): An advanced pulping c
Lignin value prior to pulping (LVPP): An advanced pulping concept, TAPPI JOURNAL October 2017
Journal articles
Magazine articles
Degradation of 2,4-dichlorophenol by melamine amine cellulos
Degradation of 2,4-dichlorophenol by melamine amine cellulose- immobilized lacasses, TAPPI JOURNAL October 2017
Conference papers
Critical Design Parameters for Continuous Digesters • Conseq
Critical Design Parameters for Continuous Digesters • Consequences of New Production Targets and How to Accommodate Them, 2017PEERS
Conference papers
Control Design Concepts for Supervisory Batch Digester Contr
Control Design Concepts for Supervisory Batch Digester Control, 2017PEERS
Conference papers
The Art of Information Management for a Tank Integrity (TI)
The Art of Information Management for a Tank Integrity (TI) Program, 2017PEERS
Conference papers
Monitoring the free Lime Content in the Lime Mud Using Zeta Potential
MONITORING THE FREE LIME CONTENT IN LIME MUD USING ZETA POTENTIAL, 2017PEERS