Supercritical Water Impacts Black Liquor Recovery Cycle

Supercritical water is an alternative processing medium for the treatment of black liquor in pulp mill operation. The advantageous thermophysical properties of water near to or beyond the critical point allow for the valorization of the organic residue into fuel gas while enabling the efficient recovery of the inorganic cooking chemicals.

During IBBC 2019, Mohamed Magdeldin of Aalto University will share results of a study on an integrated supercritical water system on the black liquor recovery cycle during his presentation, “Techno-economic Assessment of Supercritical Water Treatment of Black Liquor, Impact of Recovery Cycle Integration.” He will also address the costs and thermal design trade-offs between existing evaporation train technology and that of an integrated system.

TAPPI’s International Bioenergy & Bioproducts Conference (IBBC), October 27-30, 2019 in St. Louis, MO, focuses on the latest technologies and processes using renewable materials from biomass to produce chemicals, fuels, and other value-added products. It offers attendees a peer-reviewed technical program addressing key topics relating to biorefinery technologies, product and operation valorization, bioproduct innovations, and nonwoods.

IBBC’s Product and Operation Valorization session will include presentations on:
•    Miscanthus Valorization: Delignification, Hydrolysis, and Lignin-based Hydrogels
•    Operation Reliability Through Pump Optimization - The Prerequisite For A Successful Sugar Campaign
•    Techno-economic Assessment of Supercritical Water Treatment of Black Liquor, Impact of Recovery Cycle Integration

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IBBC is co-located with TAPPI’s Pulping, Engineering, Environmental, Recycling and Sustainability (PEERS) Conference and the 12th Research Forum on Recycling. Attendees can attend all three conferences for the price of one. Mills receive a special mill discount.

Learn more about IBBC’s technical program, events, and hotel discounts at

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