Results 11 to 20 of about 570 (175)

Understanding the effect of severity factor of prehydrolysis on dissolving pulp production using prehydrolysis kraft pulping and elemental chlorine-free bleaching sequence [PDF]

open access: yesBioResources, 2020
Prehydrolysis kraft pulping is an effective approach to produce dissolving pulp, which can be used for viscose application. The prehydrolysis process using hot liquid water could remove hemicellulose and loosen the compact cell wall, thus facilitating subsequent pulping and bleaching processes.
Wei Wei   +6 more
openaire   +1 more source

Microbial Lipid Production from Corn Stover by the Oleaginous Yeast Rhodosporidium toruloides Using the PreSSLP Process

open access: yesEnergies, 2019
Dry acid pretreatment and biodetoxification (DryPB) has been considered as an advanced technology to treat lignocellulosic materials for improved downstream bioconversion. In this study, the lipid production from DryPB corn stover was investigated by the
Xiaozan Dai   +9 more
doaj   +1 more source

PENGARUH PRAHIDROLISIS TERHADAP KUALITAS PULP RAYON ACACIA MANGIUM WILLD

open access: yesJurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2017
Rayon grade pulping trials from Acacia mangium Willd have been studied with variation in pH and prehydrolysis time. Sulphuric. abid, water and sodium hydroxide were used as prehydrolysing agent at pH 4, 7, and 10 each were prehydrolized.for 30,and 60 ...
Rena M Siagian   +3 more
doaj   +1 more source

Prehydrolysis Sulfate Cooking of Bamboo

open access: yesJAPAN TAPPI JOURNAL, 1972
Comparing the behaviour of bamboo meal at prehydrolysis sulfate cooking with those of wood meals from fir and beech, the following results were obtained : (1) The order of the rates of yield loss at prehydrolysis was; beach>fir>bamboo. Delignification rates of bamboo and beech were nearly similar. The removals of pentsan at the same level of yield loss
Ohe, Raysaburo, Mizuno, Tadao
openaire   +2 more sources

Effects of Metal Chlorides on the Solubility of Lignin in the Black Liquor of Prehydrolysis Kraft Pulping

open access: yesBioResources, 2014
The effects of CaCl2, MgCl2, FeCl3, NaCl, and AlCl3 on the solubility of lignin in the prehydrolysis kraft black liquor of Masson pine were studied using a focused-beam reflectance measurement (FBRM) instrument and UV spectra.
Liang He   +3 more
doaj   +1 more source

Effect of Liquid to Solid Ratio on Autohydrolysis of Eucalyptus globulus Wood Meal

open access: yesBioResources, 2014
Autohydrolysis of Eucalyptus globulus both with and without the addition of 5 g/L formic acid was explored for different liquid-to-solid (L/S) ratios at 150 ºC for 100 min.
Mehmet Sefik Tunc
doaj   +1 more source

The influence of pre-hydrolysis on the delignification of Hornbeam wood [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2018
In this research, the influence of two temperatures (60 and 90°C) and three dosages of sodium hydroxide (5, 7.5 and 10%, based on the dry weight) on hornbeam wood chips alkaline pre-hydrolysis and soda pulping was studied.
Abdolrahim Mohebalian   +3 more
doaj   +1 more source

Sugar cane bagasse prehydrolysis using hot water [PDF]

open access: yesBrazilian Journal of Chemical Engineering, 2012
Results are presented on the hot water prehydrolysis of sugar cane bagasse for obtaining ethanol by fermentation. The experimental study consisted of the determination of the effect of temperature and time of prehydrolysis on the extraction of hemicelluloses, with the objective of selecting the best operating conditions that lead to increased yield of ...
Abril, D., Medina, M., Abril, A.
openaire   +3 more sources

Effect of Coagulating Agents on Lignin and Oligosaccharide Contents in Pre-Hydrolysis Liquor Obtained in the Production of Dissolving Pulp from Poplar Residual Slabs

open access: yesBioResources, 2015
Pre-hydrolysis is an important step in the poplar residual slab dissolving pulp production process, as it aids in removing as much hemicellulose as possible from the cellulose fibers.
Chaojun Wu   +4 more
doaj   +1 more source

Influence of Pre-Hydrolysis on the Chemical Composition of Prunus avium Cherry Seeds

open access: yesAgronomy, 2022
During the industrial processing of sweet cherry fruits, the seeds are considered agricultural waste and must be disposed of, typically through burning. In this context, it is intended to contribute to the scientific development of the ecovalorization of
Luísa Cruz-Lopes   +6 more
doaj   +1 more source

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