Results 41 to 50 of about 280,068 (258)
Fermentation, 2023 The bio-refining process of bamboo is more challenging compared to wood due to its dense and stabilized complex polymer structure, as well as its abundance of degradation-resistant components. Consequently, the bio-refining of bamboo requires more energy
Chun Liu +5 more
doaj +1 more source
Variables Affecting Impregnation during Kraft Pulping [PDF]
, 1982 Introduction The purpose of this report was twofold. First, a pulping aid was evaluated for its effects on pulp properties. Then, the pulping aid was used in conjunction with a reduction in the times to temperature for several cooks, to see if the ...
Corriveau, William J.
core +1 more source
Effect of xylanase pretreatment on the kraft pulping of poplar [PDF]
BioResources, 2020 This study aimed to determine the influence of prehydrolysis of wood chips on the kraft pulping of Populus x euramericana. Optimum cooking conditions were determined by evaluating different alkali concentrations and cooking periods. Xylanase was used to hydrolyze chips before cooking.
Akgul, Mehmet +3 more
openaire +3 more sources
The Canadian Journal of Chemical Engineering, EarlyView.Sodium alginate was modified with EDC/NHS for the immobilization of Yacon peel peroxidase, resulting in a novel biocatalyst for the oxidation of 2,4‐dichlorophenol. Abstract Yacon (Smallanthus sonchifolius) roots are emerging as an alternative source of peroxidase. This study aimed to extract, immobilize, and characterize the peroxidase from Yacon peel,
Mariana Gomes Oliveira +4 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A scalable dual‐functional strategy yields simultaneously sulfonated and nanosized cellulose for proton exchange membranes with continuous hydrogen‐bond networks. These sustainable membranes exhibit low‐humidity proton conductivity twofold higher than Nafion 212, providing a robust solution for next‐generation fuel cells.
Nan Li +6 more
wiley +1 more source
A Study of the Use of Borates in Semi-Chemical Pulping [PDF]
, 1997 The purpose of this project was to identify sodium metaborate as a pulping chemical in semi-chemical pulping with soda ash. The experimental design included four digester cooks with 0%, 10%, 20%, and 40% addition of.the borate compound.
Hebner, Dan
core +1 more source
Low‐Hysteresis Cellulose‐Based Hydrogels for Strain Detecting
Macromolecular Rapid Communications, EarlyView.Low‐hysteresis hydrogel with high cellulose content is prepared. The modified cellulose is prepared through a sequential periodate oxidation and borohydride reduction process. The hydrogel can be used as a strain sensor with a gauge factor of 1.1 in the 0%–300% sensing range.
Xia Sun, Fanghan Luo, Feng Jiang
wiley +1 more source
ANTHRAQUINONE ADDITION IN THE ALKALINE PULPING OF Eucalyptus saligna
Ciência Florestal, 2009 The present work evaluated different alkaline pulping conditions for Eucalyptus saligna wood. The objective was to evaluate the influence of the anthraquinone (AQ) on the reduction of the total reduced sulfur (TRS) in the aerial emissions, by reducing ...
Lúcia Helena Jerônimo +2 more
doaj +1 more source
Ultrastructural characterization (morphological and topochemical) of wood pulp fibres [PDF]
, 2007 Different electron microscopy techniques including SEM (scanning electron microscopy), FE-SEM (field emission-scanning electron microscopy), TEM (transmission electron microscopy) and Immuno-gold TEM (immuno-gold transmission electron microscopy) were ...
Fernando, Dinesh
core
Evaluation of bleachability on pine and eucalyptus kraft pulps [PDF]
CERNE, 2013 In recent decades, the pulp industry has been changing and improving its manufacturing processes in order to enhance production capacity, product quality and environmental performance. The aim of this study was to evaluate the bleachability effect on the efficient washing and alkaline leaching in eucalyptus and pine Kraft pulps using three different ...
Andrade, Marcela Freitas +2 more
openaire +4 more sources