NORDIC PULP & PAPER RESEARCH JOURNAL
Home » Volume 32, 2017 » Issue No. 4
MECHANICAL PULPING
Process intensification in mechanical pulping - OPEN ACCESS
Christer Sandberg, Jan-Erik Berg and Per Engstrand
Abstract
Process intensification is a term used in the chemical process industry for major improvements in the process design leading to radical changes in process complexity, equipment size and efficiency. We suggest that a similar approach is applied in the pulp and paper industry. We have focused on the production of mechanical pulp, but a similar approach can be applied to other areas within the pulp and paper industry. Inspired by process intensification methodology, we suggest five principles for development of the mechanical pulping process. Three fundamental principles;
1. Break up the wood and fibre wall structure in the right positions.
2. Give each fibre, of certain morphology, the same processing experience.
3. Optimize the applied mechanical forces and the physiochemical state of the wood and fibre material.
and two system oriented principles;
1. Select wood raw material based on final product specifications.
2. Design the process to facilitate observability, controllability and maintenance.
Implications of these principles on process design and future challenges for mechanical pulping are discussed.
Keywords
Energy efficiency, High intensity, Low consistency refining, Mechanical pulping, Process control, Process intensification, Softening, TMP
Pages
615-622
DOI
10.3183/NPPRJ-2017-32-04-p615-622
Full text
PDF Document N2017-32-04_p615-622_Sandberg.pdf (986KB)
Process intensification in mechanical pulping - OPEN ACCESS (2017-32-04_p615-622_Sandberg.pdf)
Nordic Pulp & Paper Research Journal (NPPRJ) is an international scientific magazine covering science and technology for the areas of wood or bio-mass constituents, pulp and paper and including new fiber-based materials, recovery and by-products from pulping processes, bio-refining and energy issues. Articles meeting required scientific standards are accepted from any continent.
ISSN: 0283-2631