Results 11 to 20 of about 28,003 (208)

Fractionation of Wood Biomass With Thiolactic Acid and Choline Chloride-Based Solvent Into White Lignin for Sustainable Cooling Applications. [PDF]

open access: yesChemSusChem
A novel and highly efficient wood biomass fractionation method was developed to produce white lignin, exhibiting the brightest color reported to date. The process yielded white lignin with high yield, excellent visible light reflectance, and elevated infrared emissivity, highlighting its potential as an active material for passive radiative cooling ...
Sirviö JA   +8 more
europepmc   +2 more sources

Ozonolysis of Lignin: From Extensive Degradation to Selective Ring‐Opening Oxidation [PDF]

open access: yesChemSusChem
Despite its potential as a renewable feedstock, lignin, a major component of plant cell walls and a by‐product of the pulp and paper industry, has long been underutilized. Historically, pulp mills employed ozonolysis, a powerful oxidative process, to delignify cellulosic fibers and break down lignin.
Alexakis A, Sipponen M.
europepmc   +2 more sources

Comparison on the characteristics of Salix nigra Kraft and Soda pulp and paper [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2014
In this study pulp and hand sheets paper characteristics of Salix nigra wood kraft and soda pulp and paper were investigated. Average density of dry and bulk density wood were determined 0.35 and 150 kg/m3 and average fiber dimension consist of fiber ...
Lila Karami motaghi   +2 more
doaj   +1 more source

Characterisation of lignins isolated from bamboo organosolv and kraft black liquor

open access: yesMaderas: Ciencia y Tecnología, 2023
Bamboo biomass was pulped using organosolv methods: Acetic acid and formic acid; hydrogen peroxide and formic acid; ethanol and water and kraft process with varying concentrations of the cooking chemicals.
Nusirat Aderinsola Sadiku   +1 more
doaj   +1 more source

Modeling of negative Poisson’s ratio (auxetic) crystalline cellulose Iβ [PDF]

open access: yes, 2016
Energy minimizations for unstretched and stretched cellulose models using an all-atom empirical force field (Molecular Mechanics) have been performed to investigate the mechanism for auxetic (negative Poisson’s ratio) response in crystalline cellulose Iβ
A Alderson   +81 more
core   +1 more source

Deep eutectic solvent pulping from sorghum stalks

open access: yesMaderas: Ciencia y Tecnología, 2022
Deep eutectic solvents are characterized as natural, green, biodegradable, non-flammable, non-volatile, non-toxic, odorless, colorless, easy to prepare, and easy to recycle after use.
Sezgin Koray Gülsoy   +2 more
doaj   +1 more source

Improving Pulping Performance as Well as Reducing Consumption and Increasing Efficiency via Microbial Consortium Pretreating Bamboo

open access: yesFermentation, 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

Characterization and Separation of Lignin from Kraft Black Liquor with Different Alcohols

open access: yesDrvna Industrija, 2022
The aim of this study was to investigate the properties of lignin obtained from black liquors of Scots pine (Pinus sylvestris L.) and European aspen (Populus tremula L.) woods cooked by Kraft method.
Ayhan Gençer   +3 more
doaj   +1 more source

ANTHRAQUINONE ADDITION IN THE ALKALINE PULPING OF Eucalyptus saligna

open access: yesCiência 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

EFFECT OF LIGNIN CONTENT OF Eucalyptus globulus WOOD IN KRAFT PULPING PERFORMANCE

open access: yesCiência Florestal, 2011
In this research, it was analyzed the lignin content effect of Eucalyptus globulus wood in kraft pulping optimization. Seventy-two laboratory cooking were made with wood chips obtained from six Eucalyptus globulus trees selected from a group of 50 trees.
Gabriel Valim Cardoso   +5 more
doaj   +1 more source

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