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Optimisation of Soda Pulping Variables for Preparation of Dissolving Pulps from Oil Palm Fibre

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Published/Copyright: June 1, 2005
Holzforschung
From the journal Volume 57 Issue 1

Summary

A water prehydrolysis-soda pulping sequence for the preparation of dissolving pulps from oil palm fibre (empty fruit bunches) was investigated using a response surface methodology (RSM) statistical experiment design. Five response variables of screened yield, Kappa number, α-cellulose, viscosity and ash content were statistically analyzed with respect to the three input variables of pulping temperature (T), time-at-temperature (t) and alkali level (A), while keeping the prehydrolysis conditions constant. Optimum conditions were: T = 161°C, t = 100 min and A= 26.1%. Values predicted by RSM for screened yield, Kappa number, α-cellulose, viscosity and ash content at the optimum are 31.2%, 6.0, 96.9%, 16.1 cps and 0.15%, respectively. These values were experimentally verified and very close agreement between experimental and predicted values was obtained.

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Published Online: 2005-06-01
Published in Print: 2003-01-08

Copyright © 2003 by Walter de Gruyter GmbH & Co. KG

Articles in the same Issue

  1. The Relationship Between Variability of Cell Wall Mass of Earlywood and Latewood Tracheids in Larch Tree-Rings, the Rate of Tree-Ring Growth and Climatic Changes
  2. How Variability in OSB Mechanical Properties Affects Biological Durability Testing
  3. Microfibril Angles Inside and Outside Crossfields of Norway Spruce Tracheids
  4. Reactivity of a Fungal Laccase Towards Lignin in Softwood Kraft Pulp
  5. Lignans and Lipophilic Extractives in Norway Spruce Knots and Stemwood
  6. Investigation of Lignin Oligomers Using Electrospray Ionisation Mass Spectrometry
  7. Reactions of Lignin with Peroxymonophosphoric Acid: The Degradation of Lignin Model Compounds
  8. The Reactions of Lignin Model Compounds with Hydrogen Peroxide at Low pH
  9. Spin Distribution in Dehydrogenated Coniferyl Alcohol and Associated Dilignol Radicals
  10. Ultrastructural Localisation of Glucomannan in Kraft Pulp Fibres
  11. New Method for Quantitative Preparation of Lignin- Carbohydrate Complex from Unbleached Softwood Kraft Pulp: Lignin-Polysaccharide Networks I
  12. Peroxide Bleaching of Parquet Blocks and Glue Lams
  13. Easily Degradable Chlorinated Compounds Derived from Glucuronoxylan in Filtrates from Chlorine Dioxide Bleaching of Eucalyptus globulus Kraft Pulp
  14. Non-Deterministic Description of Wood Radio Frequency Vacuum Drying
  15. Bending Creep of High-Temperature Dried Spruce Timber
  16. Optimization of a Violin Top with a Combined Laminate Theory and Honeycomb Model of Wood
  17. Optimisation of Soda Pulping Variables for Preparation of Dissolving Pulps from Oil Palm Fibre
https://doi.org/10.1515/HF.2003.017

Articles in the same Issue

  1. The Relationship Between Variability of Cell Wall Mass of Earlywood and Latewood Tracheids in Larch Tree-Rings, the Rate of Tree-Ring Growth and Climatic Changes
  2. How Variability in OSB Mechanical Properties Affects Biological Durability Testing
  3. Microfibril Angles Inside and Outside Crossfields of Norway Spruce Tracheids
  4. Reactivity of a Fungal Laccase Towards Lignin in Softwood Kraft Pulp
  5. Lignans and Lipophilic Extractives in Norway Spruce Knots and Stemwood
  6. Investigation of Lignin Oligomers Using Electrospray Ionisation Mass Spectrometry
  7. Reactions of Lignin with Peroxymonophosphoric Acid: The Degradation of Lignin Model Compounds
  8. The Reactions of Lignin Model Compounds with Hydrogen Peroxide at Low pH
  9. Spin Distribution in Dehydrogenated Coniferyl Alcohol and Associated Dilignol Radicals
  10. Ultrastructural Localisation of Glucomannan in Kraft Pulp Fibres
  11. New Method for Quantitative Preparation of Lignin- Carbohydrate Complex from Unbleached Softwood Kraft Pulp: Lignin-Polysaccharide Networks I
  12. Peroxide Bleaching of Parquet Blocks and Glue Lams
  13. Easily Degradable Chlorinated Compounds Derived from Glucuronoxylan in Filtrates from Chlorine Dioxide Bleaching of Eucalyptus globulus Kraft Pulp
  14. Non-Deterministic Description of Wood Radio Frequency Vacuum Drying
  15. Bending Creep of High-Temperature Dried Spruce Timber
  16. Optimization of a Violin Top with a Combined Laminate Theory and Honeycomb Model of Wood
  17. Optimisation of Soda Pulping Variables for Preparation of Dissolving Pulps from Oil Palm Fibre
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