Results 21 to 30 of about 6,920 (226)
The potential of acid pre-hydrolyzed Soda-AQ process to manufacture highly purified α-cellulose [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2015 This research was performed to evaluate the potential of acid pre-hydrolysis soda-AQ process for the production of dissolving pulp including high α-cellulose content from Populus deltoides.
Mostafa Nikkhah Dafchahi +1 more
doaj +1 more source
Cellulosic materials as biopolymers and supercritical CO2as a green process: chemistry and applications [PDF]
, 2012 In this review, we describe the use of supercritical CO2 (scCO2) in several cellulose applications. The focus is on different technologies that either exist or are expected to emerge in the near future.
Camy, Séverine +2 more
core +3 more sources
Second-generation bioethanol from industrial wood waste of South American species [PDF]
, 2017 There is a global interest in replacing fossil fuels with renewable sources of energy. The present review evaluates the significance of South-American wood industrial wastes for bioethanol production. Four countries have been chosen for this review, i.e.,
Area, Maria Cristina +2 more
core +2 more sources
Influence of xylan content on the oxygen delignification performance of eucalypt kraft pulps as studied using prehydrolysis and xylanase treatments [PDF]
BioResources, 2012 Common metrics for evaluating the efficiency of oxygen delignification include the kappa number and Klason lignin content. As a change in xylan content often leads to a change in HexA content, the kappa number must be corrected for the HexA contribution ...
Helena Wedin +3 more
doaj
Investigating the effect of using oxygen delignification process on bagasse soda pulp properties [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2016 In conducting environmentally friendly processes for pulp production, first step is to reduce the effluent pollution load in each stage, and because the bleaching process is the most polluting stage in the production of pulp, improving it is one of the ...
Farhad Zeinaly +3 more
doaj +1 more source
Integration of pulp and paper technology with bioethanol production [PDF]
, 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
Dimensionless Parameter Approach For Oxygen Delignification Kinetics
Industrial & Engineering Chemistry Research, 2008 In this study, the kinetic analysis of oxygen delignification of Turkish southern hardwood Kraft pulp was carried out. The kinetic rate data were collected in a high pressure batch reactor at industrially significant conditions of temperature, alkali charge, and oxygen partial pressure.
Dogan, Ismail, Gueruez, Gueniz
openaire +2 more sources
BioResources, 2023 Effects of pre-treating pine kraft pulp kappa number 31.5 with peracetic acid (Paa) (0.33% and 0.66% as active oxygen based on oven-dried pulp) before O2-delignification were studied relative to the consumption of chlorine dioxide in a subsequent ...
Dariusz Danielewicz
doaj +2 more sources
Mill experience of oxygen delignification.
JAPAN TAPPI JOURNAL, 1988 The M-C oxygen delignification system for the eucalyptus line of our mill has started operation in January 1986.The Kappa number and viscosity reduction are around 49 % and 19% respectively.Also, the good results are shown in terms of brightness and dirt content.Whereas, the reduction of total effective chlorine consumption and COD in the bleaching ...
openaire +2 more sources
BioResources, 2013 The main challenge in the oxygen delignification process is the improvement of selectivity. To further understand the effect of the amount of hydroxyl radicals on the selectivity of oxygen delignification, in this work, the hydroxyl radicals were generated by the improved Fenton reaction system and were quantified by UV spectrophotometry.
Shilin Cao +5 more
openaire +2 more sources