Results 61 to 70 of about 6,870 (224)

Vanillin production from lignin depolymerization by acidic deep eutectic solvent and its possible mechanism

open access: yesEnvironmental Progress &Sustainable Energy, Volume 45, Issue 2, March/April 2026.
Abstract As one of the most abundant renewable resources and complex aromatic polymers, lignin holds great promise for producing monophenolic compounds. However, its depolymerization into valuable monomers is hindered by intricate side reactions. In this study, alkaline lignin was converted into vanillin using nine choline chloride‐based deep eutectic ...
Xiaoyan Chen, Xiaohui Pan, Dongyang Cui
wiley   +1 more source

Life cycle assessment of Brazilian bleached eucalyptus kraft pulp: Integrating bleaching processes and biogenic carbon impacts

open access: yesCleaner Environmental Systems
Bleached eucalyptus kraft (BEK) pulp dominates global pulp production, yet the environmental impacts of its bleaching sequences in Brazil are not fully explored.
Rhonald Ortega   +12 more
doaj   +1 more source

MOLYBDENUM CATALYZED ACID PEROXIDE BLEACHING OF EUCALYPTUS KRAFT PULP [PDF]

open access: yes, 2008
Molybdenum catalyzed peroxide bleaching (PMo Stage) consists of pulp treatment with hydrogen peroxide under acidic conditions in the presence of a molybdenum catalyst.
Jorge L. Colodette   +4 more
core  

Best Available Techniques (BAT) Reference Document for the Production of Pulp, Paper and Board. Industrial Emissions Directive 2010/75/EU (Integrated Pollution Prevention and Control) [PDF]

open access: yes, 2015
The BAT reference document entitled ‘Production of Pulp, Paper and Board' forms part of a series presenting the results of an exchange of information between EU Member States, the industries concerned, non-governmental organisations promoting ...
DELGADO SANCHO Luis   +6 more
core   +1 more source

Synthesis of Carboxylic Cellulose Nanocrystals From Yellow Thatching Grass (Hyparrhenia filipendula) via Citric Acid Hydrolysis

open access: yesEnergy Science &Engineering, Volume 14, Issue 3, Page 1322-1338, March 2026.
Fractionation of yellow thatching grass using sodium hydroxide and deep eutectic solvent Carboxylated Cellulose nanocrystals (CNCs) were successfully synthesized via hydrolysis with 80 wt% citric acid at 120°C for 4 h Variations in CNC characteristics were observed based on the fractionation method used ABSTRACT Grass is an abundant and renewable ...
Fildah Ayaa   +4 more
wiley   +1 more source

A study on oxygen delignification of Melocanna baccifera (muli bamboo) kraft pulp

open access: yesBioResources, 2007
The response of kraft pulp of Melocanna baccifera (Muli bamboo) to different conditions of oxygen delignification and subsequent bleaching using CEHH sequence was studied.
Satyavolu V. Subrahmanyam   +2 more
doaj  

Mycochemical Diversity and Therapeutic Potential of Hymenochaetoid Fungi from Central Asia: Regional and Global Perspectives

open access: yesNew Zealand Journal of Botany, Volume 64, Issue 1, March 2026.
Central Asia harbors a rich yet understudied assemblage of wood‐inhabiting Hymenochaetoid fungi. This review delivers the first comprehensive synthesis of 43 poroid species representing 18 genera documented across montane forests, steppes, and xeric habitats.
Yusufjon Gafforov   +16 more
wiley   +1 more source

INFLUÊNCIA DA LAVAGEM INTERMEDIÁRIA NA DESLIGNIFICAÇÃO COM OXIGÊNIO EM POLPA KRAFT

open access: yesCiência Florestal, 2015
In the oxygen delignification lignin is removed from the pulp by applying high pressure oxygen, under alkaline conditions, resulting in a lower demand for chemicals in bleaching.
Ivan Venson   +5 more
doaj  

Wet Oxidation Pretreatment of Wood Pulp Waste for Enhancing Enzymatic Saccharification

open access: yesBioResources, 2015
Effective pretreatment of wood pulp waste is important for enhancing enzymatic saccharification. For this reason, wet oxidation process conditions were considered with the hypothesis that the alkaline oxygen conditions would favor delignification and ...
Xingxiang Ji   +5 more
doaj   +1 more source

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