Results 21 to 30 of about 4,064 (136)

Improving Reaction Selectivity with NaOH Charges and Reaction Time in the Medium Consistency Oxygen Delignification Process

International Journal of Technology, 2020
As more delignification is targeted, fiber degradation becomes a main issue in the pulping process. Sodium hydroxide (NaOH) is highly related to pulp quality in the medium consistency oxygen delignification process.
Bambang Irawan, Aria Darmawan, Achmad Roesyadi, Danawati Hari Prajitno   +3 more
doaj   +1 more source

Characterization of cellulose from oil palm empty fruit bunches by fast delignification process with different solvents

Menara Perkebunan, 2023
Cellulose extraction typically begins with a delignification reaction using conventional methods, namely alkaline treatment. So far, the delignification process using alkaline treatment requires quite a long time, which is over 6 hours of the cooking ...
Firda Dimawarnita, Yora Faramitha, Haryo Tejo Prakoso, Indah Puspitasari, Doni Nugroho Kalbuadi, Dedy Prasetyo   +5 more
doaj   +1 more source

Boosting Oxygen Delignification of Poplar Kraft Pulp by Xylanase Pretreatment

BioResources, 2015
Enhancement of oxygen delignification is critical to improve subsequent bleaching efficiency while being environmentally compatible. In the present study, xylanase was used to improve the delignification process of poplar kraft pulp.
Xingxiang Ji, Jiachuan Chen, Qiang Wang, Zhongjian Tian, Guihua Yang, Shanshan Liu   +5 more
doaj   +1 more source

The Influence of Alkalinity in Oxygen Delignification of Soda/AQ Pulp From Old Corrugated Container [PDF]

تحقیقات علوم چوب و کاغذ ایران, 2011
The influence of oxygen delignification as an environmental friendly process, was investigated on Soda/AQ pulp from Old Corrugated Container (OCC) fibers.
Mohammad ali Azad far, Rabie Behroz, Ahmad Jahan - Latibari   +2 more
doaj   +1 more source

An Innovative, Green Cascade Protocol for Grape Stalk Valorization with Process Intensification Technologies

Applied Sciences, 2022
Valorization of agri-food residues to produce bio-based platform chemicals will enhance the transition to the bio-economy era. To this end, a sustainable process has been developed for the overall valorization of grape stalks (GS) according to a circular
Manuel Salgado-Ramos, Silvia Tabasso, Emanuela Calcio Gaudino, Andrés Moreno, Francesco Mariatti, Giancarlo Cravotto   +5 more
doaj   +1 more source

Catalyst system investigation in biomimetic delignification of oil palm empty fruit bunches

Case Studies in Chemical and Environmental Engineering
Biomimetic delignification of oil palm empty fruit bunches with the bio-inspired chemical catalyst system was investigated by mimicking the ligninolytic enzyme's redox mediator formation, i.e., Mn3+ and H2O2.
Nur Rohmah, Tirto Prakoso, Meiti Pratiwi, Tatang Hernas Soerawidjaja   +3 more
doaj   +1 more source

Composition‐Tunable Lignocellulosic Aerogels From Eucalyptus spp. Bark for Oil and Cu2+ Adsorption

Journal of Applied Polymer Science, EarlyView.
Composition‐tunable lignocellulosic aerogels are produced from Eucalyptus spp. bark by combining cellulose, lignin, and microfibrillated cellulose without post‐synthetic functionalization. The resulting porous architectures show contaminant‐dependent performance: CEL favors cooking‐oil uptake, CEL‐M favors pump‐oil uptake, and CEL‐L‐M provides the ...
Patricia Oliveira Schmitt, Chiara das Dores do Nascimento, Everton Granemann Souza, Lincoln Audrew Cordeiro, Andre Lamounier Caixeta, Sarah Kalli Silva da Silva, Debora da Silva Rodrigues, Marlon Bender Bueno Rodrigues, Brendon Willian Guedes Barbosa, Fabio Pinto da Silva, Fabricio Celso, Robert Alan Burrow, Cesar Aguzzoli, Neftali Lenin Villarreal Carreno, Darci Alberto Gatto, Andre Luiz Missio   +15 more
wiley   +1 more source

Assessment of the Influence of the Temperature in the Microwave-Assisted Alkaline Delignification of Vine Shoots

Chemical Engineering Transactions, 2018
The limitation of the fossil-resources has led the research to focus on the production of biomass-based fuels from lignocellulosic agricultural residues, as it is the case of the bio-ethanol.
Izaskun Davila, Patricia Gullon, Jalel Labidi, Vitaliy Budarin   +3 more
doaj   +1 more source

Integrated biorefinery for cellulosic ethanol and spherical nanolignin production from coconut waste

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Green coconut waste was subjected to different fractionation methods to obtain integrated lignin nanoparticles and cellulosic ethanol. Pretreatment with gradual addition of dilute sulfuric acid provided a higher structural hemicellulose precursor yield (68.2%).
Ricardo Marchezan Farias de Mesquita, Júlia Caroline Dal Prá, Roselei Claudete Fontana, Sheila Montipó, Henrique Macedo Baudel, Eduardo Dieldold, Willian Daniel Hahn Schneider, Marli Camassola   +7 more
wiley   +1 more source

Characterization of Palm Shell-Derived Bio-Oil Through Pyrolysis

Journal of Applied Agricultural Science and Technology, 2022
Lignocellulosic biomass is a renewable resource used to produce energy, fuels, and chemicals. This study aimed to determine the effect of pyrolysis temperature on product yield and product characterization of bio-oil.
Leila Utarina, Rusdianasari Rusdianasari, Leila Kalsum   +2 more
doaj   +1 more source