Repo Dosen ULM

In-depth study of bio-oil and biochar production from macroalgae Sargassum sp. via slow pyrolysis

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dc.contributor.author Apip, Amrullah
dc.contributor.author Obie, Farobie
dc.contributor.author Asep, Bayu
dc.contributor.author Novi, Syaftika
dc.contributor.author Latifa, Aisya Anis
dc.contributor.author Edy, Hartulistiyoso
dc.date.accessioned 2022-06-02T06:08:26Z
dc.date.available 2022-06-02T06:08:26Z
dc.date.issued 2022-03
dc.identifier.issn 2046-2069
dc.identifier.uri https://repo-dosen.ulm.ac.id//handle/123456789/24267
dc.description.abstract Sargassum is undoubtedly one of the most predominant brown macroalgae, posing a significant disposal problem for coastal areas worldwide. The effective valorization of Sargassum sp. would be beneficial not only for environmental mitigation but also for producing high-value chemicals. However, the valorization of Sargassum sp. for bio-oil and biochar production via slow pyrolysis has not been well studied yet. Hence, this study aimed to conduct a comprehensive investigation into bio-oil and biochar production from Sargassum sp. via slow pyrolysis to provide valuable data for further valorization. A batch reactor was employed, and the pyrolysis of Sargassum sp. was conducted in a temperature range of 400– 600  C and with retention times of 10–50 min. The results showed significant compounds could be identified in bio-oil from Sargassum sp., including carboxylic acids, furan derivatives, aliphatic hydrocarbons, and N-aromatic compounds. Based on the ultimate analysis, the H/C and O/C atomic ratios of biochar were lower than the feedstock, reflecting the occurrence of dehydration and decarboxylation reactions throughout the pyrolysis. Biochar exhibited calorific values in the range of 23.12–25.89 MJ kg 1, indicating it has more potential to be used as a solid fuel than low-ranked coals. Surface morphological analysis was performed by scanning electron microscopy (SEM) and showed a larger surface area in biochar than in the algal feedstock. Furthermore, a reaction model was deduced, and it was confirmed that the pyrolysis reaction obeyed the Arrhenius behaviour. Overall, the slow pyrolysis of Sargassum sp. provides an opportunity to obtain value-added chemicals and biochars, which could be further utilized for other applications en_US
dc.publisher Royal Society of Chemistry en_US
dc.relation.ispartofseries Apip Bid B A-15;
dc.subject Research Subject Categories::TECHNOLOGY en_US
dc.title In-depth study of bio-oil and biochar production from macroalgae Sargassum sp. via slow pyrolysis en_US
dc.type Article en_US


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