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2023 (English)In: ChemSusChem, ISSN 1864-5631, E-ISSN 1864-564X, article id e202300492Article in journal (Refereed) Published
Abstract [en]
Kraft lignin, a by-product from the production of pulp, is currently incinerated in the recovery boiler during the chemical recovery cycle, generating valuable bioenergy and recycling inorganic chemicals to the pulping process operation. Removing lignin from the black liquor or its gasification lowers the recovery boiler load enabling increased pulp production. During the past ten years, lignin separation technologies have emerged and the interest of the research community to valorize this underutilized resource has been invigorated. The aim of this review is to give (1) a dedicated overview of the kraft process with a focus on the lignin, (2) an overview of applications that are being developed, and (3) a techno-economic and life cycle asseeements of value chains from black liquor to different products. Overall, it is anticipated that this effort will inspire further work for developing and using kraft lignin as a commodity raw material for new applications undeniably promoting pivotal global sustainability concerns.
Keywords
kraft lignin, lignin, recovery, pulping, biofuels, biomaterials
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:ri:diva-66159 (URN)10.1002/cssc.202300492 (DOI)37493340 (PubMedID)
Note
AcknowledgementsIn an alphabetical order, DA, & CC thank the Marie Skłodowska-Curiefoundation for funding via the B-Ligzymes Grant Agreement no: 824017,CCthanks Next Generation EU –Progetto ECS00000043 -Programma Ecosistema dell’innovazione “Interconnected Nord-Est Innovation Ecosystem (iNEST)”, CUP H43C22000540006; This study was carried out within the Interconnected Nord-Est Innovation Ecosystem (iNEST) and received funding from the European Union Next-GenerationEU (PIANO NAZIONALE DI RIPRESA E RESILIENZA (PNRR) –MISSIONE 4 COMPONENTE 2, INVESTIMENTO 1.5 –D.D. 1058 23/06/2022, ECS00000043). This manuscript reflects only the authors’ views and opinions, neither the European Union nor the European Commission can be considered responsible for them.CH thanks the Swedish Foundation for Strategic Environmental Research (Mistra: project Mistra STEPS, project number 2014/44);KJ thanks the Swedish Research Council Formas (grant 2022-01943). CP and JSMS thanks the Swedish Foundation for Strategic Environmental Research (Mistra: project Mistra SafeChem, project number 2018/11); ES thanks Marie Skłodowska-Curie foundation for funding.
2023-09-072023-09-072023-09-07Bibliographically approved