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Cracking and Inspection of Stainless Steel Suction Rolls, 2001 Engineering / Finishing & Converting Conference Proceedings
Cracking and Inspection of Stainless Steel Suction Rolls, 2001 Engineering / Finishing & Converting Conference Proceedings
Understanding Deposit Removal Process in Recovery Boilers, 2001 Engineering / Finishing & Converting Conference Proceedings
Understanding Deposit Removal Process in Recovery Boilers, 2001 Engineering / Finishing & Converting Conference Proceedings
Optimizing Winder Performance, 2001 Engineering / Finishing & Converting Conference Proceedings
Optimizing Winder Performance, 2001 Engineering / Finishing & Converting Conference Proceedings
Knowledge of Damage Mechanisms - A Key to More Cost-Effective Inspections and Repairs, 2001 Engineering / Finishing & Converting Conference Proceedings
Knowledge of Damage Mechanisms - A Key to More Cost-Effective Inspections and Repairs, 2001 Engineering / Finishing & Converting Conference Proceedings
Journal articles
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Probing the molecular weights of sweetgum and pine kraft lignin fractions, TAPPI Journal June 2021
ABSTRACT: The present investigation undertook a systematic investigation of the molecular weight (MW) of kraft lignins throughout the pulping process to establish a correlation between MW and lignin recovery at different extents of the kraft pulping process. The evaluation of MW is crucial for lignin characterization and utilization, since it is known to influence the kinetics of lignin reactivity and its resultant physico-chemical properties. Sweetgum and pine lignins precipitated from black liquor at different pHs (9.5 and 2.5) and different extents of kraft pulping (30•150 min) were the subject of this effort. Gel permeation chromatography (GPC) was used to determine the number average molecular weight (Mn), mass average molecular weight (Mw), and polydispersity of the lignin samples. It was shown that the MW of lignins from both feedstocks follow gel degradation theory; that is, at the onset of the kraft pulping process low molecular weight-lignins were obtained, and as pulping progressed, the molecular weight peaked and subsequently decreased. An important finding was that acetobromination was shown to be a more effective derivatization technique for carbohydrates containing lignins than acetylation, the technique typically used for derivatization of lignin.
Effect of Specific Edge Loading on Freeness Drop, 1996 Engineering Conference Proceedings
Effect of Specific Edge Loading on Freeness Drop, 1996 Engineering Conference Proceedings
Characterization of Pulp Suspensions, 1996 Engineering Conference Proceedings
Characterization of Pulp Suspensions, 1996 Engineering Conference Proceedings
Conveyor Belt Damage: Causes and Cures, 1997 Engineering Conference Proceedings
Conveyor Belt Damage: Causes and Cures, 1997 Engineering Conference Proceedings
Keys to Successful Power Boiler Predictive Emissions Monitoring System Installation, 1997 Engineering Conference Proceedings
Keys to Successful Power Boiler Predictive Emissions Monitoring System Installation, 1997 Engineering Conference Proceedings
Optimization of Furnish Blending Using Factor Network Analysis, 1997 Engineering Conference Proceedings
Optimization of Furnish Blending Using Factor Network Analysis, 1997 Engineering Conference Proceedings