Results 11 to 20 of about 10,608,979 (207)

Anti-scaling agents in kraft pulping

open access: yesBioResources, 2007
Scale formation in the digester during kraft pulping represents a great problem in pulp mills. Scaling reduces pulping control and efficiency, increasing energy costs and leading to cleaning breakdowns, with subsequent losses in productivity.
Felissia, F. E.   +3 more
doaj   +1 more source

PROCESS OPTIMIZATION IN KRAFT PULPING, BLEACHING, AND BEATING OF LEUCAENA DIVERSIFOLIA

open access: yesBioResources, 2011
A variety of the Leucaena genus, Leucaena diversifolia, was used for pulp and paper making by kraft and refining processes and a OD(EP)DP bleaching sequence.
Manuel Javier Feria,   +5 more
doaj   +2 more sources

On the structure of lignin in kraft pulping

open access: yes, 2004
Lignin present in the residual delignification phase is difficult to dissolve and any further pulping leads to an increased loss of pulp strength and yield. In this work, a radical coupling mechanism during kraft pulping is suggested to contribute to the
Majtnerova, Andrea,   +1 more
core   +8 more sources

Modelling and simulation of biorefinery processes Case study: Kraft pulping process

open access: yes
In the pursuit of a sustainable economy, the transition from petroleum-based to renewable feedstocks like lignocellulose demands a profound understanding of its inherent complex character during chemical processing.
Bijok, Nicolaus
core   +3 more sources

Green Process for Xylooligosaccharides Production using an Eucalyptus Kraft Pulp

open access: yesJournal of Polymers and the Environment, 2022
Xylooligosaccharides (XOS) are oligomers with recognized and important prebiotic properties, whose consumption is associated with several health benefits, including a positive impact on the immune system. In this work, XOS were produced through a green process of enzymatic hydrolysis performed directly on an intermediate product from a pulp and paper ...
Henriques, Patrícia I. A.   +3 more
openaire   +2 more sources

Bleaching of radiata pine Kraft pulp with the EnZone process

open access: yesJournal of Biotechnology, 1995
Abstract Oxygen delignified Kraft pulps from radiata pine were treated with xylanase in the presence of a quelating agent prior to their chemical bleaching with the sequences WZEOPP, EPWZP and EOPWZP. Enzymes tested included Cartazyme from Sandoz, Ecopulp from Alko-ICI, Irgazyme 40 from Ciba-Genencor and Pulpzyme HB from Novo Nordisk.
VICUÑA-ERRAZURIZ, JOSE   +2 more
openaire   +4 more sources

Impregnation, vapor phase and methanol as means of intensifying the softwood kraft pulping process [PDF]

open access: yes, 2006
The objective of the research was to find ways to shorten the cooking time, i.e. intensify the kraft pulping process. The reason for undertaking such a study lies in the long standing trend of ever increasing reactor size in the kraft pulping industry ...
Enqvist, Eric
core   +1 more source

Interfacing spectrophotometry to process liquors applications to kraft pulping

open access: yes, 2002
This thesis summarizes the outcome of work performed withthe objective to contribute to the knowledge and development ofthe kraft cooking process using spectrophotometricinterfaces.
Yang, Xiaotian
core   +2 more sources

Ecofriendly Organosolv Process for Pulping of Tender Coconut Fibre

open access: yesCORD, 2015
The huge biomass generated by vendors of tender coconut is the broken husks refuse dumped along roads and highways in Kerala. These dumps become breeding grounds for diseased causing germs and carrier mosquitoes causing threat to human life.
Jincy P.J.   +2 more
doaj   +1 more source

Enhancing Kraft based dissolving pulp production by integrating green liquor neutralization

open access: yesCarbohydrate Polymer Technologies and Applications, 2021
A pre-hydrolysis Kraft pulping (PHK) process that was used to make dissolving pulp was enhanced by replacing conventional white liquor (WL) neutralization with green liquor (GL) neutralization prior to Kraft pulping.
Ran Bi   +8 more
doaj   +1 more source

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