Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Committees
Collections
Journal articles
Magazine articles
Understanding the energy and emission implications of new technologies in a kraft mill: Insights from a CADSIM Plus simulation model, TAPPI Journal June 2024
ABSTRACT: Kraft mills play a vital role in energy transition because they have significant potential to reduce their own energy utilization and produce energy/products to decarbonize other sectors. Through biomass combustion and potential biogenic carbon emissions capture, these mills can contribute to offsetting emissions from other sectors. This research investigates the departmental and cross-departmental implications of technology upgrades on energy, steam, emissions, water, and chemicals using a CADSIM Plus simulation model. The model provides a comprehensive analysis of mass and energy balances, offering valuable insights into the benefits and limitations of each technology. The model facilitates scenario analysis and comparisons of process configurations, enabling data-driven decision-making for sustainable and competitive operations. Six high-impact technologies, including additional evaporator effects, weak black liquor membrane concentration, belt displacement washer for brownstock washing, oxygen delignification, and improvements to the pulp machine shoe press and vacuum pumps, are evaluated. Individual technologies resulted in energy savings of 1.2% to 5.4%, biomass consumption reductions of 8.6% to 31.6%, and total emissions reductions of 1.6% to 5.9%. Strategic decision-making must consider existing mill limitations, future technology implementation, and potential production increases. Future research will explore product diversification, biorefineries, and pathways to achieve carbon-negative operations, aiming to reduce emissions and secure a competitive future for kraft mills.
Journal articles
Monitoring our progress toward sustainability - desirable or undesirable?, TAPPI JOURNAL, May 1997, Vol. 80(5)
Monitoring our progress toward sustainability - desirable or undesirable?, TAPPI JOURNAL, May 1997, Vol. 80(5)
Journal articles
Achieving compliance with 112(r): The road to success, TAPPI JOURNAL, May 1997, Vol. 80(5)
Achieving compliance with 112(r): The road to success, TAPPI JOURNAL, May 1997, Vol. 80(5)
Journal articles
Pick the perfect thermoplastic for pulp and paper pipes and vessels, TAPPI JOURNAL, November 1997, Vol. 80(11)
Pick the perfect thermoplastic for pulp and paper pipes and vessels, TAPPI JOURNAL, November 1997, Vol. 80(11)
Journal articles
Economic stability bodes well for Brazilian pulp and paper producers, TAPPI JOURNAL, November 1997, Vol. 80(11)
Economic stability bodes well for brazilian pulp and paper producers, TAPPI JOURNAL, November 1997, Vol. 80(11)
Journal articles
Repulping wet-strength paper, TAPPI JOURNAL, November 1997, Vol. 80(11)
Repulping wet-strength paper, TAPPI JOURNAL, November 1997, Vol. 80(11)
Journal articles
Role of polymers in deinking mixed paper, TAPPI JOURNAL, November 1997, Vol. 80(11)
Role of polymers in deinking mixed paper, TAPPI JOURNAL, November 1997, Vol. 80(11)
Journal articles
Sootblower optimization II: Deposit and sootblower interaction, TAPPI JOURNAL, November 1997, Vol. 80(11)
Sootblower optimization ii: deposit and sootblower interaction, TAPPI JOURNAL, November 1997, Vol. 80(11)
Journal articles
A diffusion model for the impregnation of lignocellulosic materials, TAPPI JOURNAL, November 1997, Vol. 80(11)
A diffusion model for the impregnation of lignocellulosic materials, TAPPI JOURNAL, November 1997, Vol. 80(11)
Journal articles
Performance parameters of oxygen delignification, TAPPI JOURNAL, October 1997, Vol. 80(10)
Performance parameters of oxygen delignification, TAPPI JOURNAL, October 1997, Vol. 80(10)