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
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
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
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
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
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
Factors limiting o×ygen delignification of kraft pulp [PDF]
Canadian Journal of Chemistry, 2001 Softwood kraft pulp was subjected to a laboratory one- and three-stage oxygen delignification process. Pulp and liquor samples were collected at different stages of the process with particular attention being paid to the early and late stages. A novel residual lignin isolation method extracted about 65% of the oxidized residual lignins at a purity ...
Leonid G Akim +2 more
openaire +1 more source
Efeito dos ácidos hexenurônicos e da lignina no desempenho da ozonólize, em diferentes pHs da reação
Química Nova, 2006 The effect of pH on the performance of the ozonolysis stage in pulp production was evaluated for conventional and acid treated brown and oxygen delignified eucalyptus kraft pulps.
Ventorim Gustavo, Colodette Jorge Luiz
doaj +3 more sources
Full Sequence Bleaching with Dimethyldioxirane [PDF]
, 1995 Research work to date has shown dimethyldioxirane to be a very powerful, yet highly selective oxidant. Dimethyldioxirane bleaching may become more important in the future with legislative restrictions on chlorine based bleaching agents as it contains no ...
Krueger, Daniel
core +1 more source
Anaerobic co-digestion of acetate-rich with lignin-rich wastewater and the effect of hydrotalcite addition [PDF]
, 2016 The methane potential and biodegradability of different ratios of acetate and lignin-rich effluents from a neutral sulfite semi-chemical (NSSC) pulp mill were investigated.
Dahl Olli, Peka +2 more
core +2 more sources