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Review

Mechanochemical and Size Reduction Machines for Biorefining

Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, 630090 Novosibirsk, Russia
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Academic Editor: Rafał Łukasik
Molecules 2020, 25(22), 5345; https://doi.org/10.3390/molecules25225345
Received: 16 October 2020 / Revised: 9 November 2020 / Accepted: 11 November 2020 / Published: 16 November 2020
(This article belongs to the Special Issue Lignocellulosic Biomass to Biofuels and Biochemicals)
In recent years, we have witnessed an increasing interest in the application of mechanochemical methods for processing materials in biomass refining techniques. Grinding and mechanical pretreatment are very popular methods utilized to enhance the reactivity of polymers and plant raw materials; however, the choice of devices and their modes of action is often performed through trial and error. An inadequate choice of equipment often results in inefficient grinding, low reactivity of the product, excess energy expenditure, and significant wear of the equipment. In the present review, modern equipment employing various types of mechanical impacts, which show the highest promise for mechanochemical pretreatment of plant raw materials, is examined and compared—disc mills, attritors and bead mills, ball mills, planetary mills, vibration and vibrocentrifugal mills, roller and centrifugal roller mills, extruders, hammer mills, knife mills, pin mills, disintegrators, and jet mills. The properly chosen type of mechanochemical activation (and equipment) allows an energetically and economically sound enhancement of the reactivity of solid-phase polymers by increasing the effective surface area accessible to reagents, reducing the amount of crystalline regions and the diffusion coefficient, disordering the supramolecular structure of the material, and mechanochemically reacting with the target substances. View Full-Text
Keywords: mechanochemistry; energy consumption; biorefining; plant raw materials; mechanical pretreatment; scaling mechanochemistry; energy consumption; biorefining; plant raw materials; mechanical pretreatment; scaling
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MDPI and ACS Style

Lomovskiy, I.; Bychkov, A.; Lomovsky, O.; Skripkina, T. Mechanochemical and Size Reduction Machines for Biorefining. Molecules 2020, 25, 5345. https://doi.org/10.3390/molecules25225345

AMA Style

Lomovskiy I, Bychkov A, Lomovsky O, Skripkina T. Mechanochemical and Size Reduction Machines for Biorefining. Molecules. 2020; 25(22):5345. https://doi.org/10.3390/molecules25225345

Chicago/Turabian Style

Lomovskiy, Igor, Aleksey Bychkov, Oleg Lomovsky, and Tatiana Skripkina. 2020. "Mechanochemical and Size Reduction Machines for Biorefining" Molecules 25, no. 22: 5345. https://doi.org/10.3390/molecules25225345

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