Difference between revisions of "Microwave treatment"
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<onlyinclude> | <onlyinclude>In '''microwave''' treatment electromagnetic radiation is utilised to induce thermal and non-thermal effects that drive physical, chemical or biological reactions<ref name=":0">{{Cite journal|author=Ethaib, S., Omar, R., Kamal, S. M. M., Biak, D. R. A.|year=2015|title=MICROWAVE-ASSISTED PRETREATMENT OF LIGNOCELLULOSICBIOMASS: A REVIEW|journal=Journal of Engineering Science and Technology|volume=January (2015)|page=97-109}}</ref>. The technology is usually utilised in food drying or to break down the structure of lignocellulosic biomass leading to the release of different substances (e.g. fermentable sugar).</onlyinclude> | ||
==Feedstock== | ==Feedstock== | ||
Revision as of 15:14, 13 September 2021
| Technology | |
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| Technology details | |
| Name: | Microwave pre-treatment |
| Category: | |
| Feedstock: | Food and kitchen waste (lignocellulosic materials), Garden and park waste (lignocellulosic materials) |
| Product: | Fermentable sugar |
In microwave treatment electromagnetic radiation is utilised to induce thermal and non-thermal effects that drive physical, chemical or biological reactions[1]. The technology is usually utilised in food drying or to break down the structure of lignocellulosic biomass leading to the release of different substances (e.g. fermentable sugar).
Feedstock
Origin and composition
Lignocellulosic biomass
Pre-treatment
Process and technologies
The breakdown of lignocellulosic biomass into its monomers and oligomers is induced via molecular collision due to dielectric polarisation[2]. Compared to other thermal treatments, the technology brings several advantages, such as reduced plant footprint, higher throughput, higher reaction rates, as well as higher yield and purity[1]. However, a disadvantage is the unequal distribution of the applied microwave power through non-homogeneous material (such as differences in composition, geometry, size) as well as local overheating through resonance (electromagnetic wave reflection and formation of standing waves) and low penetration for bulk materials [2].
The process can also be combined with chemical treatments utilising chemicals such as alkaline (to remove lignin) and acid (to remove hemicellulose) solutions, ammonia, and metal salts[1].
Product
- Fermentable sugar (e.g. for bio-alcohol production)
Post-treatment
Technology providers
Anton paar
Biotage
Cem GmbH
Milestone Srl
Sairem
Patents
References
- ↑ a b c Ethaib, S., Omar, R., Kamal, S. M. M., Biak, D. R. A., 2015: MICROWAVE-ASSISTED PRETREATMENT OF LIGNOCELLULOSICBIOMASS: A REVIEW. Journal of Engineering Science and Technology, Vol. January (2015), 97-109. doi: https://doi.org/
- ↑ a b Alejandra Aguilar-Reynosa, Aloia Romaní, Rosa Ma. Rodríguez-Jasso, Cristóbal N. Aguilar, Gil Garrote, Héctor A. Ruiz, 2017-03: Microwave heating processing as alternative of pretreatment in second-generation biorefinery: An overview. Energy Conversion and Management, Vol. 136, 50–65. doi: https://doi.org/10.1016/j.enconman.2017.01.004