[HTML][HTML] Improving Reaction Selectivity with NaOH Charges and Reaction Time in the Medium Consistency Oxygen Delignification Process

B Irawan, A Darmawan, A Roesyadi, DH Prajitno - Int. J. Tech, 2020 - ijtech.eng.ui.ac.id
Improving Reaction Selectivity with NaOH Charges and Reaction Time in the Medium
Consistency Oxygen Delignification Process title Title Author Issue Keywords Current Issue …

Dimensionless parameter approach for oxygen delignification kinetics

I Dogan, G Guruz - Industrial & engineering chemistry research, 2008 - ACS Publications
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 …

Method and arrangement for oxygen delignification of cellulose pulp

M Ragnar - US Patent 7,156,952, 2007 - Google Patents
One of the first patents for two-stage oxygen delignifica tion of medium consistencies is SE.
B. 467,582 (= US Pat. No. 5.217. 575), where the principles of a warmer second stage is …

Mass transfer and kinetics in oxygen delignification

İ Doğan - 2005 - open.metu.edu.tr
In this study, the kinetic analysis of oxygen delignification of Turkish southern hardwood
Kraft pulp was carried out. Kraft pulp was obtained from Mopak Dalaman pulp and paper …

Extended oxygen delignification. part 2: multi-stage oxygen bleaching with intermediate hypochlorous acid stages

N Leroy, C Chirat, D Lachenal, D Robert… - Appita: Technology …, 2004 - search.informit.org
Making the hypothesis that the superiority of chlorine dioxide (D) over oxygen (O)
delignification was due to the in situ formation of CIOH, some CIOH treatments (h) were …

Oxygen delignification kinetics: CSTR and batch reactor comparison

Y Ji, MC Wheeler, A van Heiningen - AIChE journal, 2007 - Wiley Online Library
In the past, oxygen delignification studies were mostly performed in batch reactors, whereby
the caustic and dissolved oxygen concentrations are changing during the reaction. Also the …

Oxalate formation during hydrogen peroxide-reinforced oxygen delignification

Y Liu, S Ge, Y Li, B Li, H Li - Journal of industrial and engineering chemistry, 2018 - Elsevier
The effects of different process parameters (alkali dosage, hydrogen peroxide dosage,
temperature, reaction time, and oxygen pressure) on oxalate formation during hydrogen …

[PDF][PDF] Medium consistency oxygen delignification performed with a controlled cavitation reactor

PW Hart, D Mancosky, D Armstead - Tappi Journal, 2006 - hydrodynamics.com
BACKGROUND Oxygen delignification has many economic, product, and environmental
advantages over traditional D100 bleaching sequences. Roughly 40% of North American …

[PDF][PDF] A chemical reactor analysis of industrial oxygen delignification

A van Heiningen, D Krothapalli, J Genco… - Pulp & Paper …, 2003 - researchgate.net
Industrial oxygen delignification is modeled by taking into account oxygen mass transfer,
pulp delignification kinetics and mixer performance. The efficiency of delignification is …

Using online bubble size and total dissolved solids measurements to investigate the performance of oxygen delignification

R Kopra, H Mutikainen, O Dahl - TAPPI Journal, 2018 - research.aalto.fi
The main target of oxygen delignification is to continue delignification that started in cooking
in a more selective manner than occurs in the digester (ie, remove a substantial fraction of …