FORMATION OF VANILLIN AND SYRINGALDEHYDE IN AN OXYGEN DELIGNIFICATION PROCESS [PDF]
BioResources, 2010 The formation of vanillin and syringaldehyde during an oxygen delignification process was evaluated. The cleavage of conjugated Cα-Cβ bonds in phenolic lignin caused by the attack of oxygen leads to the formation of aromatic aldehydes and ketones.
Zhaojiang Wong, Kefu Chen, Jun Li
doaj +3 more sources
Ozonolysis of Lignin: From Extensive Degradation to Selective Ring-Opening Oxidation. [PDF]
ChemSusChemDespite 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 AE, Sipponen MH.
europepmc +2 more sources
Top-Down Fabricated Wood-Derived Pressure and Strain Sensors: A Review. [PDF]
Adv Sci (Weinh)This review focuses on wood‐derived pressure/strain sensors fabricated via top‐down strategies. It analyzes wood's structural composition, examines processing techniques, discusses sensor types and sensing mechanisms, and reviews existing research. The article concludes with future directions for enhancing performance and scalability.
Ren Y +8 more
europepmc +2 more sources
Oxygen Delignification of Acid Sulfite and Bisulfite Softwood Pulps
BioResources, 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
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Evaluating the Potential to Modify Pulp and Paper Properties through Oxygen Delignification [PDF]
ACS Omega, 2020 Cláudia S. V. G. Esteves +3 more
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High Selectivity Oxygen Delignification [PDF]
, 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
openaire +3 more sources
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 +2 more
doaj +1 more source
Investigation on the properties of totally chlorine free bleached soda - oxygen pulp from old corrugated container [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2012 Soda - oxygen pulping of old corrugated container to produce totally chlorine free bleached pulp was investigated. In order to reach the optimum delignification condition; four levels of sodium hydroxide (9, 11, 13, and 15 %), three cooking times (90 ...
Vahid Delnavaz +3 more
doaj +1 more source
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 +3 more
doaj +1 more source
Delignification of Lignocellulosic Biomass and Its Effect on Subsequent Enzymatic Hydrolysis
BioResources, 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 +1 more source