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Modeling and simulation of biomass pyrolysis processes

2022Conference object Open access
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dc.contributor.authorMaldonado, Pedro
dc.contributor.authorLenzi, Giane G.
dc.contributor.authorGomes, Helder
dc.contributor.authorBrito, Paulo
dc.date.accessioned2023-01-24T09:26:56Z
dc.date.available2023-01-24T09:26:56Z
dc.date.issued2022
dc.description.abstractPyrolysis is a thermochemical process where organic matter is decomposed into gaseous products, oils constituted by tars, and non-volatilized residual char, through the elevation of the system temperature (400-800°C), in the absence of oxygen. This process can be modeled and simulated for deeper analysis and optimization. However, since the process is clearly influenced by a high number of operational parameters such as temperature, pressure and dozens of simultaneous parallel reactions, its simulation becomes significantly complex. Thus, the aim of this work is the modeling of a more robust pyrolysis process, considering more components present in tar composition, as well as the evaluation of pyrolysis products distribution under different pyrolysis temperatures: 400, 500 and 600°C. Hence, a model was developed based on second-order equations [1], using pyrolysis temperature as the main variable, achieving as result the yield of three macro components: gases, tar and residual char. The gas fraction is composed by: carbon monoxide (CO), carbon dioxide (CO2), methane (CH4) and hydrogen (H2); tar fraction is constituted by: benzene (C6H6), toluene (C7H8) and naphthalene (C10H8), and the residual char is accompanied by ash in its composition. Simulation was implemented using biomass data based on the composition of olive residues applying the chemical process simulation software UniSim Design. The modeling first step is biomass decomposition in a conversion reactor, applying the yields obtained using the previous equations, while the second step is the decomposition of residual char in a yield reactor, resulting in the elemental constituents: carbon (C(s)), hydrogen gas (H2), oxygen gas (O2), nitrogen gas (N2), solid sulfur (S(s)), and ash. It is possible to note that the pyrolysis model results (see Table 1), implemented with the Software UniSim Design, show, in general, compatibility with the results available in the literature [2, 3]. The model reveals low sensitivity for the yield results, when using different sources of biomass with similar compositions, possibly due to the use of the temperature as the main variablept_PT
dc.description.sponsorshipThis work is funded by the Portuguese Foundation of Science and Technology (FCT) within the framework of the SUBe Project, ref.: PCIF/GVB/0197/2017. The authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support through national funds FCT/MCTES (PIDDAC) to CIMO (UIDB/00690/2020 and UIDP/00690/2020) and SusTEC (LA/P/0007/2021pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMaldonado, Pedro; Lenzi, Giane G.; Gomes, Helder; Brito, Paulo (2022). Modeling and simulation of biomass pyrolysis processes. In XXVI Encontro Galego-Portugues de Química: Book of Abstracts. Santiago de Compostelapt_PT
dc.identifier.isbn978-84-09-45895-0
dc.identifier.urihttp://hdl.handle.net/10198/26654
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherUniversidade de Santiago de Compustelapt_PT
dc.relationMountain Research Center
dc.relationMountain Research Center
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBiomasspt_PT
dc.subjectResearch Subject Categories::TECHNOLOGYpt_PT
dc.titleModeling and simulation of biomass pyrolysis processespt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleMountain Research Center
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00690%2F2020/PT
oaire.citation.conferencePlaceSantiago de Compostelapt_PT
oaire.citation.endPage164pt_PT
oaire.citation.startPage164pt_PT
oaire.citation.titleXXVI Encontro Galego-Portugues de Química: Book of Abstractspt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameGomes
person.familyNameBrito
person.givenNameHelder
person.givenNamePaulo
person.identifier.ciencia-id6218-1E19-13EE
person.identifier.ciencia-idA31A-D845-A6E2
person.identifier.orcid0000-0001-6898-2408
person.identifier.orcid0000-0003-1805-0252
person.identifier.scopus-author-id31168231800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication0eb96337-224a-4339-9918-334436fbbb99
relation.isAuthorOfPublication0370deac-dc4e-4b3d-8e1f-fc2d117794d2
relation.isAuthorOfPublication.latestForDiscovery0eb96337-224a-4339-9918-334436fbbb99
relation.isProjectOfPublication29718e93-4989-42bb-bcbc-4daff3870b25
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