Results 61 to 70 of about 8,681 (223)

Isothermal reaction kinetics of kraft delignification of douglas-fir [PDF]

open access: yes, 1990
Kraft delignification of Douglas-fir (Pseudotsuga menziesii) wood meal was carried out under an instantaneous isothermal condition with a liquor-to-wood ratio of 50 to investigate the effects of reaction temperature and chemical concentration on the rate
Chiang, Vincent L.   +2 more
core   +1 more source

Delignification of Wheat Straw Using DES-like Mixtures [PDF]

open access: yes, 2023
Wheat straw, an agricultural residue, is emerging as a viable alternative to wood biomass alongside other annual plants. The exploration of novel methods, particularly those involving ecofriendly solvents, is at the forefront of harnessing the potential ...
Veronika Jančíková   +2 more
core   +1 more source

Enhanced Mass Transport and Elevated Active Site Density for Highly Efficient Overall Water Splitting Over Delignification‐Engineered Carbonized Wood

open access: yesCarbon Energy, EarlyView.
Controlled delignification pretreatment tailors the hierarchical porous structure of wood to improve ion transport and create abundant anchoring sites for Ni/Ni(OH)2 catalysts. The optimized electrode shows enhanced mass transfer, increased active site density, and superior overall water‐splitting performance, demonstrating delignification as an ...
Ting He   +15 more
wiley   +1 more source

Residual acid effect on oxygen delignification [PDF]

open access: yes, 2016
This work has aimed to evaluate the effect of usage of residual acid from the chemical plant of chlorine dioxide production as a #owing part of oxidized white liquor (OWL).
Caraschi, José Cláudio [UNESP]   +2 more
core  

Factors limiting oxygen delignification of kraft pulp [PDF]

open access: yes, 2001
Softwood kraft pulp was subjected to a laboratory one- and three-stage oxygen delignification process. Pulp and liquor samples were collected at different stages of the process with particular attention being paid to the early and late stages.
Dimitris S Argyropoulos   +2 more
core   +1 more source

Machine‐Learning‐Enabled Wood with Nanopump Functionalization for Solar Interfacial Evaporation

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study employed machine learning to design an iron‐cobalt‐carbon‐wood photothermal material, achieving high‐efficiency evaporation at 2.807 kg m−2 h−1 and excellent salt resistance. The integrated system increased the daily water production efficiency of solar distillation by 1.5 times, providing an innovative solution for sustainable seawater ...
Chaohai Wang   +10 more
wiley   +1 more source

Nanofiber PVA‐Based Membranes Incorporating Functionalized Spanish Broom Derivatives for Sustainable Water Purification

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study investigates Spanish broom (Spartium junceum) as a renewable source for electrospun composite membranes in sustainable water purification. MCC and biochar were functionalized with eco‐friendly precursors and nanomaterials (i.e., HNT, β‐CDs) to develop hybrid PVA nanofiber composites.
Giulia Rando   +7 more
wiley   +1 more source

Polyoxometalates in Oxidative Delignification of Chemical Pulps: Effect on Lignin [PDF]

open access: yes, 2010
Chemical pulps are produced by chemical delignification of lignocelluloses such as wood or annual non-woody plants. After pulping (e.g., kraft pulping), the remaining lignin is removed by bleaching to produce a high quality, bright paper.
Ralph, Atalla, Reiner, Hirth, Bujanovic
core   +1 more source

Biopolymer composites from agri‐food wastes and by‐products: valorization, fabrication, and food related applications

open access: yesFood Biomacromolecules, EarlyView.
Agri‐food wastes and by‐products are transformed into sustainable biopolymer composites through extraction, modification, and advanced fabrication technologies. These value‐added materials exhibit enhanced mechanical, barrier, antimicrobial, and biodegradable properties, enabling applications in food packaging, edible coatings, and preservation systems
Samuel Ayofemi Olalekan Adeyeye   +1 more
wiley   +1 more source

Organosolv delignification kinetics [PDF]

open access: yes
Os estudos cinéticos e mecanísticos das reações de polpação/deslignificação de madeiras são indispensáveis para a otimização dos processos que visam à utilização de polpas celulósicas.
Araujo, Eduardo Santos de
core   +1 more source

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