Effect of oxygen delignification process on the lignin content and wastewater quality from kraft-pulped Eucalyptus pellita

A Darmawan, YAP Ramadhan, NR Dewi… - AIP Conference …, 2020 - pubs.aip.org
The aim of this research is to observe the decrease in lignin content and wastewater quality
from oxygen delignification process of kraft-pulped Eucalyptus pellita. In pulp production …

Kappa number and viscosity in oxygen delignification of kraft-pulp Eucalyptus pellita in comparison with prediction data

MM Agata, SA Virda, A Darmawan, H Ni'mah… - AIP Conference …, 2023 - pubs.aip.org
The quality of pulp after delignification process is measured by the lignin content (Kappa
Number) and viscosity (pulp strength). In this study, Eucalyptus Pellita was treated in Kraft …

The Effect of Oxidized and Unoxidized Filtrate on Oxygen Delignification

A Nasser - 2015 - diva-portal.org
The purpose of the study was to investigate how different types of filtrates (oxidized and
unoxidized) would effect on oxygen delignification for softwood pulp, as well as study its …

The effects of temperature, alkali charge and additives in the oxygen delignification in high kappa number Eucalyptus pulp kraft.

EA Bonfatti Junior, FG Silva Júnior - 2018 - cabidigitallibrary.org
The purpose of this paper was to evaluate the effect of temperature, alkali charge,
anthraquinone and ethanol additives in oxygen delignification for kraft pulp of Eucalyptus …

[PDF][PDF] Effects of lignin chemistry on oxygen delignification performance

VJ Gomes, H Jameel, JL Colodette - Tappi Journal, 2018 - researchgate.net
The present work focused on characterizing the chemical and structural properties of
isolated lignin from six hardwoods and their kraft pulps in an attempt to better understand the …

Fundamental understanding of distracted oxygen delignification efficiency by dissolved lignin during biorefinery process of eucalyptus

H Zhao, J Li, X Zhang - Bioresource technology, 2018 - Elsevier
In this work, a fundamental understanding of oxygen delignification distracted by dissolved
lignin was investigated. In the new biorefinery model of shortening kraft pulping integrated …

[PDF][PDF] Effect of pH on oxygen delignification of hardwood kraft pulp

A Van Tran - Paper and Timber, 2001 - researchgate.net
Oxygen delignification in practice is either a one-stage or a two-stage process and
conventionally carried out at high alkaline pH. This work studied the effect of pH in the range …

The distribution of lignin and xylan in the inner and surface layers of the fiber from eucalyptus kraft pulp and its effects on oxygen delignification

GB Bacarin, FC Cabrera, MR Silva, AE Job - Materials Research, 2017 - SciELO Brasil
The chemical structure and composition of lignin and hemicellulose, as well as the
distribution between inner and outer layers of fiber, can adversely affect bleaching …

Pulp strength enhancement by oxygen delignification

C Esteves - 2022 - diva-portal.org
Oxygen delignification is widely used in the pulp and paper industry as a part of
delignification process between the kraft cook and bleaching. However, its potential has not …

Oxygen Delignification for Southern Softwood Kraft Pulps with High Lignin

L Tao - 2005 - digitalcommons.library.umaine.edu
The kinetics and selectivity of the oxygen delignification process were investigated for
southern softwood Kraft pulps at high lignin content. The process variables investigated …