Self-assembly of colloidal lignin particles in a continuous flow tubular reactor

Ashok, Rahul Prasad Bangalore; Xiao, Yao; Lintinen, Kalle; Oinas, Pekka; Kostiainen, Mauri A.; Österberg, Monika

doi:10.1016/j.colsurfa.2019.124228

Cited by 15 publications

(12 citation statements)

References 35 publications

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“…However, demonstrations of producing large quantities (kg) of particles have so far been made only using the wet approach and a continuous process has also been developed. 184 Most reported methods rely on dissolving lignin that has been precipitated from the pulping process, sometimes further purified, and dried. These intermediate steps add substantial energy and chemical consumption and it would be ideal if the black liquor could be used as such as raw material or alternatively if the lignin particles could be produced directly from biorefinery residues.…”

Section: Conclusion and Prospectsmentioning

confidence: 99%

Spherical lignin particles: a review on their sustainability and applications

et al. 2020

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Section: Conclusion and Prospectsmentioning

confidence: 99%

Spherical lignin particles: a review on their sustainability and applications

et al. 2020

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“…Lourençon et al. successfully extracted high‐yield and high‐purity lignin by adjusting the hydrothermal treatment process and applied it to the preparation of LMNPs, which could effectively reduce manufacturing costs (reduction of 58 %) [80] . Ashok et al.…”

Section: Technical and Economic Assessmentmentioning

confidence: 99%

“…[23o] Lourençon et al successfully extracted high-yield and high-purity lignin by adjusting the hydrothermal treatment process and applied it to the preparation of LMNPs, which could effectively reduce manufacturing costs (reduction of 58 %). [80] Ashok et al designed a scalable tubular flow reactor that could achieve continuous and efficient production of LMNPs (yield up to 95 %). [81] Despite the increasing industrialization research on LMNPs products, there are currently few technical and economic assessments of their manufacturing process.…”

Section: Technical and Economic Assessmentmentioning

confidence: 99%

State‐of‐the‐Art: Applications and Industrialization of Lignin Micro/Nano Particles

Chen

Wang

et al. 2021

ChemSusChem

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As a new product of high‐value utilization of lignin, lignin micro/nano particles (LMNPs) have attracted the attention of researchers due to their non‐toxicity, corrosion‐resistance, UV resistance, and other excellent characteristics and potential application value. This article outlined the main preparation methods of LMNPs at the current stage, summarized and compared them from three perspectives of preparation technology, final product state and product composition. Subsequently, based on the different focuses of the properties of LMNPs, their application research progress as fillers, UV blockers, drug delivery carriers, among others, were introduced. Then a concise analysis of the technical and economic assessment and life cycle assessment of LMNPs in the process of industrialization was made. Finally, the main problems at present and the future development directions were analyzed and prospected to provide references for the deep processing of forest resources and the development of bio‐based nanomaterials.

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“…Consequently, the choice of solvent system will be crucial for process feasibility. Another approach to scale-up of LNP production is the application of a continuous flow tubular reactor recently demonstrated by Ashok and co-workers [ 77 ]. The continuous flow tubular reactor represents a system of tubes with static mixing elements and a continuous flow of lignin solution into water during mixing.…”

Section: Lignin Nanomaterialsmentioning

confidence: 99%

“…In this reactor, when lignin contacts water, a homogenous dispersion of spherical LNPs is spontaneously formed. Advantages of this approach include control over LNP size, continuous production of particles, scalability of the reactor, and energy efficiency [ 77 ]. Some mechanical methods, such as milling, can be used for large-scale production of LNPs as well.…”

Section: Lignin Nanomaterialsmentioning

confidence: 99%

Towards sustainable production and utilization of plant-biomass-based nanomaterials: a review and analysis of recent developments

Zhu

Agarwal

Ciesielski

et al. 2021

Biotechnol Biofuels

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Plant-biomass-based nanomaterials have attracted great interest recently for their potential to replace petroleum-sourced polymeric materials for sustained economic development. However, challenges associated with sustainable production of lignocellulosic nanoscale polymeric materials (NPMs) need to be addressed. Producing materials from lignocellulosic biomass is a value-added proposition compared with fuel-centric approach. This report focuses on recent progress made in understanding NPMs—specifically lignin nanoparticles (LNPs) and cellulosic nanomaterials (CNMs)—and their sustainable production. Special attention is focused on understanding key issues in nano-level deconstruction of cell walls and utilization of key properties of the resultant NPMs to allow flexibility in production to promote sustainability. Specifically, suitable processes for producing LNPs and their potential for scaled-up production, along with the resultant LNP properties and prospective applications, are discussed. In the case of CNMs, terminologies such as cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) used in the literature are examined. The term cellulose nano-whiskers (CNWs) is used here to describe a class of CNMs that has a morphology similar to CNCs but without specifying its crystallinity, because most applications of CNCs do not need its crystalline characteristic. Additionally, progress in enzymatic processing and drying of NPMs is also summarized. Finally, the report provides some perspective of future research that is likely to result in commercialization of plant-based NPMs.

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Self-assembly of colloidal lignin particles in a continuous flow tubular reactor

Cited by 15 publications

References 35 publications

Spherical lignin particles: a review on their sustainability and applications

Spherical lignin particles: a review on their sustainability and applications

State‐of‐the‐Art: Applications and Industrialization of Lignin Micro/Nano Particles

Towards sustainable production and utilization of plant-biomass-based nanomaterials: a review and analysis of recent developments

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