Results 11 to 20 of about 8,681 (223)

The Limits of Delignification in Kraft Cooking [PDF]

open access: yesBioResources, 2017
The perspective of the article is to explore kraft cooking at the limits of delignification, i.e. what degree of delignification is needed to obtain fibre liberation and what is the maximum degree of delignification possible in the kraft pulping stage ...
Elisabet Brännvall
doaj   +5 more sources

Comparison of Oil Palm Empty Fruit Bunch Delignification at Room and Mild Temperature [PDF]

open access: yesJurnal Teknik Kimia dan Lingkungan, 2022
Oil palm empty fruit bunches (OPEFB) is one kind of palm oil industry solid waste. OPEFB contains high lignocellulose for about 81-89% that can be used for production of fertilizer, paper, filler, and composite.
Lidya Elizabeth   +4 more
doaj   +3 more sources

Delignification of Lignocellulosic Biomass and Its Effect on Subsequent Enzymatic Hydrolysis [PDF]

open access: yesBioResources, 2015
The effect of delignification on the enzymatic hydrolysis of biomass was investigated to determine how different delignification processes affect enzymatic hydrolysis conversion yields.
Junyeong Park   +4 more
doaj   +3 more sources

High Selectivity Oxygen Delignification [PDF]

open access: yes, 2005
Project Objective: The objectives of this project are as follows: (1) Examine the physical and chemical characteristics of a partner mill pre- and post-oxygen delignified pulp and compare them to lab generated oxygen delignified pulps; (2) Apply the chemical selectivity enhancement system to the partner pre-oxygen delignified pulps under mill ...
Arthur Ragauskas   +2 more
core   +6 more sources

Parametric optimization of delignification of rice straw through central composite design approach towards application in grafting

open access: yesJournal of Advanced Research, 2018
The present investigation deals with process optimisation of delignification of rice straw towards its micro-porous structural enhancement for its utilization in polymer grafting. The individual effect of influential parameters viz.
Aparna Mukherjee   +2 more
exaly   +3 more sources

Delignification Kinetics of Corn Stover with Aqueous Ammonia Soaking Pretreatment [PDF]

open access: yesBioResources, 2016
Soaking aqueous ammonia (SAA) pretreatment of corn stover was carried out at three temperatures (30, 50, and 70 ºC) and three concentrations of ammonia solution (5, 15, and 25 wt.%). The delignification kinetic model, based on three first-order reactions,
Jinnan Gao   +6 more
doaj   +2 more sources

Oxygen Delignification of Acid Sulfite and Bisulfite Softwood Pulps [PDF]

open access: yesBioResources, 2015
This study discusses alternatives for the production of sulfite pulps cooked to high kappa numbers, and a subsequent oxygen treatment by using the same cation in the cooking and in the oxygen stages. Magnesium was used as a cation during both the cooking
Niklas Kvarnlöf, Ulf Germgård
doaj   +2 more sources

Boosting Oxygen Delignification of Poplar Kraft Pulp by Xylanase Pretreatment [PDF]

open access: yesBioResources, 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   +5 more
doaj   +2 more sources

Alkaline Hydrogen Peroxide Delignification of Three Lignocellulosic Biomass under Atmospheric Pressure [PDF]

open access: yesBioResources, 2023
The study’s goal was to investigate the delignification characteristics using alkaline hydrogen peroxide (AHP) under atmospheric pressure, intending it as a pre-treatment method for transforming low-value lignocellulosic biomass into high-performance ...
Ji Sun Mun, Sung Phil Mun
doaj   +3 more sources

Delignification of Lignocellulosic Biomass [PDF]

open access: yesWorld Journal of Advanced Research and Reviews, 2021
Delignification is the process of breaking lignocellulose into lignin, cellulose, and hemicellulose. The presence of lignin in lignocellulosic materials results in the limited utilization of cellulose. This article discusses lignin and the delignification process.
Deivy Andhika Permata   +3 more
openaire   +2 more sources

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