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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
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Open Access
Oil absorption and desorption by polypropylene fibers, TAPPI

Oil absorption and desorption by polypropylene fibers, TAPPI JOURNAL September 2017

Journal articles
Magazine articles
Open Access
Three-dimensional pore structure visualization and character

Three-dimensional pore structure visualization and characterization of paper using X-ray computed tomography, TAPPI JOURNAL September 2017

Journal articles
Magazine articles
Open Access
Effect of surface treatment with biodegradable materials on

Effect of surface treatment with biodegradable materials on properties of linerboard made from old corrugated containers (OCC), TAPPI Journal September 2017

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Over the Wire, Paper360º September/October 2017

Over the Wire, Paper360º September/October 2017

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Agenda 2020 Technology Projects Target Energy Efficiency, Su

Agenda 2020 Technology Projects Target Energy Efficiency, Sustainability, Paper360º September/October 2017

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A Biorefinery Industry is Emerging, Paper360º September/Oct

A Biorefinery Industry is Emerging, Paper360º September/October 2017

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RISI’s 2017 Latin American CEO of the Year: An interview wi

RISI’s 2017 Latin American CEO of the Year: An interview with Walter Schalka, Suzano, Paper360º September/October 2017

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Ready to Compete for Another Century, Paper360º September/Oc

Ready to Compete for Another Century, Paper360º September/October 2017

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New Pilot Plant is a Vision in Tissue Technology, Paper360º

New Pilot Plant is a Vision in Tissue Technology, Paper360º September/October 2017

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