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Title: RECYCLING OF BLACK LIQUOR WASTE FROM PULP FACTORIES AND THE DEVELOPMENT OF SUSTAINABLE FUELS
RECYCLING OF BLACK LIQUOR WASTE FROM PULP FACTORIES AND THE DEVELOPMENT OF SUSTAINABLE FUELS

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Florian Marin; Oana Botoran; Simona Oancea; Marius Constantinescu; Anca Maria Zaharioiu
10.5593/sgem2024/4.1/s18.40
10.5593/sgem2024/4.1
1314-2704
978-619-7603-71-2
English
24
4.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
18.Recycling
The lignocellulosic biomass is produced worldwide in large quantities, which may contribute to environmental changes, global warming, wildfires, ocean and sea level rise. Recent research demonstrated efficacy of the thermal reconversion of black liquor, which represents a waste resulted from wood Kraft pulping, into gaseous (syngas), liquid (bio-oil) and solid (bio-char) final products through the pyrolysis process. This review describes the physical chemical and energy features of black liquor required for its valorization into fuels and valuable chemical compounds, the thermochemical process and the pyrolytic final products developed from such waste. The obtained syngas rich in hydrogen, methane, carbon dioxide and carbon monoxide can be directly used for energy purposes. In order to increase the energy values of the synthesis gas, as well as to reduce the negative impact on the environment, it is desirable to use it in mixtures, in different ratios, with natural gas, geothermal gas or biogas. The pyrolytic bio-oil can be used as an alternative fuel to fossil ones after refining. The pyrolytic bio-char has great potential for valorization into adsorbent materials for CO2 capture and storage, after a chemical activation process. The advantages of black liquor pyrolysis consist in the elimination of this waste regularly produced in considerable quantities for the development of alternative and renewable fuels that contain high levels of ecological carbon.
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The authors acknowledge the support from the Ministry of Research, Innovation and Digitization through the NUCLEU Program (financing contract no. 20N/2023, Project PN 23 15 04 02/2023-2026), titled “Capitalizing on laboratory experiments in the development of biofuel production technologies from agro-industrial waste”.
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https://doi.org/10.5593/sgem2024/4.1/s18.40
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
299-306
1 - 7 July, 2024
website
9753
recycling, black liquor, pyrolysis, sustainable fuels

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