Results 111 to 120 of about 8,681 (223)

Effects of DES and Chlorite Delignification Methods on Properties of Transparent Wood Materials

open access: yesDrvna Industrija
Wood has many uses as raw material and after being processed. Since the use of wood as raw material is limited, the interaction of physical and chemical processes with technological developments has led to new products and new areas of use.
Eser Sözen   +3 more
doaj   +1 more source

Oxygen delignification of kraft pulp catalysed by polyoxometalates [PDF]

open access: yes, 2002
A deslenhificação com oxigénio catalisada com polioxometalatos (POMs) sob condições aeróbicas constitui o tema do presente trabalho. Várias séries de POMs foram testadas como catalisadores e os parâmetros dos potênciais sistemas de deslenhificação POM/
Gaspar, Armindo Ribeiro
core  

INFLUÊNCIA DA LAVAGEM INTERMEDIÁRIA NA DESLIGNIFICAÇÃO COM OXIGÊNIO EM POLPA KRAFT

open access: yesCiência Florestal, 2015
In the oxygen delignification lignin is removed from the pulp by applying high pressure oxygen, under alkaline conditions, resulting in a lower demand for chemicals in bleaching.
Ivan Venson   +5 more
doaj  

Gas-liquid Mass Transfer in Oxygen Delignification Systems [PDF]

open access: yes, 2004
Oxygen delignification involves a three phase reaction system; pulp fibers, and aqueous phase containing caustic and an oxygen gas phase. In this system, oxygen dissolves into the aqueous phase and is then transported through the liquid to the pulp ...
Krothapalli, Deep
core  

EFFECT OF LIGNIN ON ENZYMATIC SACCHARIFICATION OF HARDWOOD AFTER GREEN LIQUOR AND SULFURIC ACID PRETREATMENTS

open access: yesBioResources, 2012
Red maple, sweet gum, trembling aspen, red alder, and Eucalyptus globulus samples were pretreated with dilute sulfuric acid and green liquor before enzymatic saccharification.
Douyong Min,   +3 more
doaj  

Robust Pretreatment in Combination with Ultrasound-Assisted Surfactant to Improve the Enzymatic Hydrolysis of Eucalyptus pellita

open access: yesBioResources
Alkaline pretreatment stands out as a valuable strategy in biomass conversion to overcome the recalcitrance of biomass by removing lignin and a part of hemicellulose. This enhances enzyme accessibility and promotes saccharification.
Soodeh Zhand   +3 more
doaj   +2 more sources

Selective cellulose fibril release from hardwoods libriform tissue. [PDF]

open access: yesCommun Chem
von Usslar F   +2 more
europepmc   +1 more source

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