Influence of microalgae on synergism during co-pyrolysis with organic waste biomass: A thermogravimetric and kinetic analysis

Abstract

Influence of microalgae on synergism during co-pyrolysis with organic waste biomass: A thermogravimetric and kinetic analysis, Renewable Energy, https://doi.org/10.1016/ j.renene.2020.11.039. This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

Thermo-Chemical Conversion of Microwave Selectively Pre-Treated Biomass Blends

“…As a result, heat producers can increasingly use biomass blends of different origin (wood, peat, straw, coal) in different proportions, which currently is a common practice in the fixed bed installations [21]. Using fuel blends of different origin, such as biomass and coal, for heat production allows to conclude that their thermo-chemical conversion and combustion characteristics are highly influenced by the thermal and chemical interactions of their components, indicating the occurrence of synergetic effects on the thermal decomposition of biomass blends with non-additive interactions between the components during their thermal decomposition [22][23][24][25][26].…”

“…Therefore, if biomass blends consist of components of dissimilar elemental and chemical composition, the synergism between the components influences the thermal behaviour of the blends [24,26], which is confirmed by a modelling study on the co-pyrolysis of biomass and plastic wastes [27]. This suggests that the thermal behaviour of biomass blends can be controlled by providing selective MW pre-treatment of the blend components, which results in partial thermal destruction of the main constituents of lignocellulosic biomass [28], promoting changes in their structure, in chemical and elemental composition responsible for the variations of the rate of thermal decomposition, of the yield of volatiles, and formation of char [29].…”

Discernment of synergy during the co‐pyrolysis of lipid‐extracted microalgae and digested municipal solid waste: a thermogravimetric–mass spectrometric study

“…4 In addition, to promote the early acceptance of biofuels many developed nations have amended legislation of biofuels to renewable fuel standards and renewable portfolio standards. 5 A wide variety of biomass is available for consideration as a potential feedstock for the production of bioenergy, which include livestock wastes, forest biomass, aquatic biomass, municipal wastes, digested residues and industrial wastes. 2,[6][7][8] The firstand secondgeneration biomasses have their limitations such as competition between food to feed and cost-intensive transportation, respectively, and so research has been focused on third-generation feedstock.…”

“…12 Recently, thermochemical conversion, for instance pyrolysis and gasification, has attracted much attention. 18 However, there are a few disadvantages, such as high water and oxygen contents in the liquid products, associated with pyrolysis, 2,5 which can be eliminated by employing co-pyrolysis in which a synergistic effect with the feedstock can help improve the quality of pyrolytic products. 19 The products of co-pyrolysis, such as biochar, are reported to have many applications such as adsorbents in wastewater treatment.…”

“…Our recent study on evaluating the synergy between the same species of microalgae and MSW indicated synergistic and antagonistic effects with respective mixing ratios of microalgae and MSW. 5 Therefore, in the study reported here, efforts were made to comprehend the synergistic influence of microalgae, Chroococcus sp. (CC), on DMSW and vice versa considering the thermal nature of mixed samples, trends and quantities of the evolved gases and kinetics.…”