Inorganic Chemistry during Pyrolysis, Gasification, and Oxyfuel Combustion of Kraft Pulping Black Liquor

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(6), P. 5279 - 5287

Published: March 7, 2024

Changed utilization of black liquor in the pulp and paper industry has potential to offer simplified carbon capture and, thus, negative net emissions from these large point sources. This can be achieved either by adapting existing recovery boilers oxyfuel combustion or replacing them with gasification technology. In this work, chemistry during conversion was therefore studied detail under different atmospheres relevant for pyrolysis, gasification, combustion. Experiments were performed using environmental scanning transmission electron microscopy (ESTEM) thermogravimetric analysis (TGA), supported thermodynamic equilibrium calculations (TECs) understand interpret results. Black found generally similar air containing approximately 20–25 mol % oxygen. The results however indicated that there a higher probability forming carbonates melt at dioxide (CO2) partial pressures, which addition associated potentially sulfur loss conversion. Both characteristics negatively affect chemical recycling mill increasing need lime makeup chemicals.

Language: Английский

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Combined pretreatment of malic acid and kraft pulping for the production of fermentable sugars and highly active lignin

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 277, P. 134619 - 134619

Published: Aug. 9, 2024

Language: Английский

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Resource recovery and treatment of wastewaters using filamentous fungi

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 951, P. 175752 - 175752

Published: Aug. 24, 2024

Industrial wastewater, often characterized by its proximity to neutral pH, presents a promising opportunity for fungal utilization despite the prevalent preference of fungi acidic conditions. This review addresses this discrepancy, highlighting potential certain industrial wastewaters, particularly those with low pH levels, biorefinery. Additionally, economic implications biomass recovery and compound separation, factors that require explicit were emphasized. Through an in-depth analysis various sectors, including food processing, textiles, pharmaceuticals, paper-pulp, study explores how filamentous can effectively harness nutrient-rich content wastewaters produce valuable resources. The pivotal role ligninolytic enzymes synthesized in wastewater purification is examined, as well their ability absorb metal contaminants. Furthermore, diverse benefits biorefinery are underscored, production protein-rich single-cell protein, biolipids, enzymes, organic acids, which not only enhance environmental sustainability but also foster growth. Finally, challenges associated scaling up processes treatment critically evaluated, providing insights future research implementation. comprehensive aims elucidate addressing while promoting sustainable resource utilization.

Language: Английский

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Biohydrogen fermentation from pretreated biomass in lignocellulose biorefinery: Effects of inhibitory byproducts and recent progress in mitigation strategies

Biotechnology Advances, Journal Year: 2024, Volume and Issue: unknown, P. 108508 - 108508

Published: Dec. 1, 2024

Language: Английский

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Extraction of high-purity lignin from the kraft pulping black liquor by enzyme purification process with alkaline-resistant xylanase and cellulase

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 295, P. 139574 - 139574

Published: Jan. 7, 2025

Language: Английский

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