Results 81 to 90 of about 17,855 (226)

Estimating Pure Diffusion Contributions in Alkaline Pulping Processes [PDF]

open access: yes, 2002
A model that predicts isothermal alkali diffusion and reaction with acetyl groups in moist wood chips was derived and approximated. System parameters were estimated from unsteady-state experimental data.
Costanza, Pedro, Costanza, Vicente
core  

Fractionation of Pinus radiata wood by combination of steam explosion and organosolv delignification

open access: yesMaderas: Ciencia y Tecnología, 2019
This work proposes a sequential combination of steam explosion and organosolv delignification for Pinus radiata fractionation. An efficient pretreatment to fully optimize the use of lignocellulosic materials is the key to make a biorefinery profitable ...
Camila María Imlauer-Vedoya   +5 more
doaj  

Influenced factors in the delignification process of red meranti wood sawdust [PDF]

open access: yes, 2018
Lignocellulosic biomass are plants that include forestry residue and agricultural residues that are mainly composed of cellulose, hemicelluloses and lignin.
Mimi Sakinah, A. M., S. N., Abdul Rahman
core  

Integration of pulp and paper technology with bioethanol production [PDF]

open access: yes, 2013
BACKGROUND: Despite decades of work and billions of dollars of investments in laboratory and pilot plant projects, commercial production of cellulosic ethanol is only now beginning to emerge.
Hasan Jameel   +2 more
core   +1 more source

Effect Of Pre-Treatment On The Bleachability Of Tropical Mixed Hardwood Kraft Pulps Towards Oxygen And Modified Oxygen Delignification [PDF]

open access: yes, 2017
Delignifikasi oksigen (peringkat-O) adalah pringkat yang paling penting (selaku peringkat pertama) dalam turutan pelunturan bebas-klorin untuk penyingkiran lignin secara pukal, jadi, pemaksimuman kepilihan serta kecerahan pulpa pada peringkat-O adalah ...
Chong, Yin Hui
core  

Ekstraksi Selulosa dari Serbuk Gergaji Kayu Sengon melalui Proses Delignifikasi Alkali Ultrasonik [PDF]

open access: yes, 2018
Kayu sengon (Albizia chinensis) merupakan salah satu jenis kayu yangmelimpah di Indonesia. Kandungan selulosa pada kayu sengon cukup tinggi sebesar 41,17%.
H.P.,, Sena Setiawan   +3 more
core   +2 more sources

The effect of delignification process with alkaline peroxide on lactic acid production from furfural residues [PDF]

open access: yesBioResources, 2012
Furfural residues produced from the furfural industry were investigated as a substrate for lactic acid production by simultaneous saccharification and fermentation (SSF).
Yong Tang   +4 more
doaj  

Policy vs. Consumer Pressure: Innovation and Diffusion of Alternative Bleaching Technologies in the Pulp Industry [PDF]

open access: yes
In the late 1980s and early 1990s, concern over dioxin in both paper products and wastewater led to the development of techniques that reduced the use of chlorine in the pulp industry. Both regulatory and consumer pressure motivated this change.
David Popp   +2 more
core  

Studying the effects of laccase treatment in a softwood dissolving pulp: cellulose reactivity and crystallinity [PDF]

open access: yes, 2014
An enzymatic biobleaching sequence (LVAQPO) using a laccase from Trametes villosa in combination with violuric acid (VA) and then followed by a pressurized hydrogen peroxide treatment (PO) was developed and found to give high bleaching properties and ...
Ariza, J.   +5 more
core   +2 more sources

EFFECT OF PRIOR MECHANICAL REFINING ON BIOBLEACHING OF WHEAT STRAW PULP WITH LACCASE /XYLANASE TREATMENT

open access: yesBioResources, 2012
Wheat straw pulp was mechanochemically processed in a PFI mill in order to improve the effect of laccase/xylanase system (LXS) treatment before bleaching. The delignification and bleachability of the prepared pulp were investigated.
Hai-Lan Lian,, Ji-Xue You,, Zhi-Na Lian
doaj  

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