Results 41 to 50 of about 11,956 (228)
Chemistry of Kraft Pulping and Pulp Bleaching
JAPAN TAPPI JOURNAL, 2000 Chemistry of kraft pulp production was summarized from considering recent environmental plans. Levels of dioxins and chloroform emission in regulations were shown first, and then chemical feature of lignin, reactions of lignin and carbohydrates during kraft pulping, structure of residual lignin in pulp, reactions of chlorine and chlorinated chemicals ...
openaire +2 more sources
The Use of Demolition Wood in Papermaking [PDF]
, 1996 The reason for this study came from three factors affecting the paper industry as well as society as a whole. These factors are decreasing landfill space, increasing tipping fees, and increasing demands for alternative fiber sources. In the United States,
Anderson, Todd W.
core +1 more source
Modification of the lignin structure during alkaline delignification of eucalyptus wood by kraft, soda-AQ, and soda-O2 cooking [PDF]
, 2015 11 páginas.-- 5 figuras.-- 4 tablas.-- 50 referencias.-- Supporting Information The general conditions for the kraft, soda-AQ, and soda-O2 alkaline cooking of eucalyptus feedstock, are shown in Table S1.
Berbís, Manuel Álvaro +9 more
core +2 more sources
From Hemp Bast to Lyocell Fiber: Sustainable Process Optimization for Lyocell‐Grade Dissolving Pulp
Journal of Applied Polymer Science, EarlyView.This study presents a sustainable method to produce lyocell‐grade dissolving pulp from Canadian hemp bast fibers. A simplified alkali‐chelation‐bleaching process, free from sulfur and chlorine, yielded high α‐cellulose pulp with low lignin and hemicellulose content. The pulp was successfully spun into continuous hemp‐based lyocell fibers, demonstrating
Md Abu Sayed +8 more
wiley +1 more source
Journal of Bioresources and Bioproducts, 2022 The objective of this work is to systematically evaluate the performance of the hydrolysis-based kraft pulping process and associated pulp and black liquor characteristics.
Wenchao Jia +5 more
doaj +1 more source
Investigation of the Static Mixer for Improved Heat Transfer to Black Liquors [PDF]
, 1974 The objective of this experiment was to determine an improved method by which evaporation of kraft black liquors to the 50 to 65% total solids level could be sufficiently performed in multiple effect evaporators.
Redmond, Bruce J.
core +1 more source
Characterization of hairs and pappi from Cynara cardunculus capitula and their suitability for paper production [PDF]
, 2009 The capitula of Cynara cardunculus contain hairs and pappi representing 7% of the total plant biomass. These low density biomass components could be mechanically separated without apparent losses using a whole-plant processing prototype.
Curt, Maria +4 more
core +1 more source
Valorization of paper sludge for bioethanol and biogas production
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract This study evaluated the physicochemical properties and bioenergy potential of three distinct paper sludges: virgin pulp sludge (VP‐PS), corrugated cardboard sludge (CR‐PS), and tissue and printing paper sludge (TPR‐PS). From the experimental runs, VP‐PS exhibited the highest ethanol yield (46.8 ± 3.7 g L−1, 87.4% conversion), which can be ...
Anné Williams +5 more
wiley +1 more source
BioResources, 2010 Hibiscus cannabinus, Hibiscus sabdariffa, and Cannabinus sativa, which are renewable non-woody fiber resources having characteristics similar to that of softwood (bast fibers), when used together with hardwood (core fibers), gave higher pulp yield with ...
Dharm Dutt, J. S. Upadhyaya, C. H. Tyagi
doaj
Biotechnology Progress, EarlyView.For biofuels production, hemicellulose pre‐hydrolysate is considered as an attractive feedstock rich in fermentable sugars. The pre‐hydrolysate derived from lignocellulosic biomass comprises, along with sugars, several inhibitors which can hamper its efficient conversion.
Mariem Theiri +3 more
wiley +1 more source