Continuous batch cooking
Continuous batch cooking technology for production of paper grade pulp.
Features
- Improves yield, pulp homogeneity, strength and bleachability
- Increases pulp production without additional digesters
- Reduces production costs
- Accepts bad chip quality
- Applicable for retrofits and green-field installations
In Detail
Continuous Batch Cooking (CBC) combines the advantages of batch operation with the continuous preparation of cooking liquors. The basic concept is to prepare all the process-related liquors in the tank farm using different tank-to-tank circulation loops.
CBC is the only displacement technology allowing a consistent and even alkali profile throughout the impregnation and cooking steps. Quick heating to temperature and the unique alkali profile are the main keys for the significantly reduced cooking cycle time and for improvement in pulp quality.
VISCBC is the process for dissolving grad pulp manufacture implementing steam prehydrolysis followed by a neutralization step.
CBC´s special liquor management shortens the cooking cycle time and boosts capacity while improving pulp quality and yield. Quality benefits extend to pulp homogeneity, strength properties and bleachability.
CBC utilizes minimum equipment, thus saving investment costs and simplifying operation and process control. Separate digester circulation systems and circulation heat exchangers are no longer required.
Lenzing Technik´s specialists have extensive know-how in design, engineering, erection and optimization of digester plants. Their experience in combination with the company's competence in project management and contracting ensures superior project realization.
