Paper Title
Using cavitation for delignification of wood
Keywords
- Cavitation Delignification
- Wood Delignification
- Kraft Process
- Hydrodynamic Cavitation
- Acoustic Cavitation
- Lignin Removal
- Cellulosic Pulp Fibres
- Steam Driven Cavitation
- Hybrid Cavitation
- Pulp and Paper Industry
- Chemical Pulping
- Sustainable Pulping Techniques
- Kinetic Analysis of Delignification
- Rate Constants of Delignification
- Energy Efficiency in Delignification
- Biomass Processing
- Wood Chemistry
- Advanced Pulping Technologies
- Green Pulping Methods
- Eco-Friendly Lignin Extraction
- Cavitation Bubble Dynamics
- Industrial Wood Processing
- Steam-Assisted Cavitation
Journal
Research Impact Tools
Publication Info
Volume: 110 | Pages: 697-700
Published On
April, 2012
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Abstract
The Kraft process is the most widely used chemical process for the removal of lignin and other polymers from wood to obtain cellulosic pulp fibres. In the present study, the effect of cavitation (growth and violent collapse of vapour bubbles in a liquid) on delignification of wood was investigated. Steam was introduced in the reactor in order to study the effect of steam driven hybrid cavitation on delignification. The results obtained were subjected to kinetic analysis. The rates of delignification obtained using hydrodynamic cavitation were about 4–5 orders of magnitude greater than those obtained using acoustic cavitation (rate constants for delignification were 9.78 × 10−6 and 6.8 × 10−1 min−1 for acoustic and hydrodynamic cavitation, respectively). The energy imparted by the pump in the hydrodynamic cavitation reactor was much higher than that imparted by the acoustic devices and this was considered to be the cause of the higher delignification rates.
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