Publication:
Effect of Operating Conditions on Separation of H2S from Biogas Using a Chemical Assisted PDMS Membrane Process

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dc.contributor.authorÇALLI, BARIŞ
dc.contributor.authorsTilahun, Ebrahim; Sahinkaya, Erkan; Calli, Baris
dc.date.accessioned2022-03-12T22:25:22Z
dc.date.available2022-03-12T22:25:22Z
dc.date.issued2018
dc.description.abstractHydrogen sulfide (H2S) is an undesirable impurity that has to be removed from biogas to avoid the corrosion of co-generation units. In the present study, we evaluated the potential of a gas-liquid membrane contactor process for selective removal of H2S from biogas. The effects of biogas retention time (GRT), membrane thickness and liquid absorbent pH were investigated. A dilute sodium hydroxide solution was used as absorbent. The results revealed that H2S removal efficiency (RE) improved with increasing GRT and absorbent pH, and decreased with increasing membrane thickness. When GRT reduced from 19 to 3.4min, the RE of H2S and CO2 decreased by over 2.5 and 5.2 times, respectively. In contrast, a higher desulfurization selectivity was observed with lower GRT and thicker membranes. The CH4 content of the treated biogas increased along with increasing GRT and was enriched from 60% to a maximum of 87% with only 4.68% loss. The SEM-EDS analysis confirmed the deposition of inorganics such as Ca, Mg, S and Si on the membrane surface. However, any membrane clogging and fouling problem was not observed. In summary, the novel gas-liquid polydimethylsiloxane membrane contactor tested in this study has performed well in selective removal of H2S from biogas and is expected to be a promising alternative to conventional desulfurization processes.
dc.identifier.doi10.1007/s12649-018-0226-9
dc.identifier.eissn1877-265X
dc.identifier.issn1877-2641
dc.identifier.urihttps://hdl.handle.net/11424/234912
dc.identifier.wosWOS:000450305000009
dc.language.isoeng
dc.publisherSPRINGER
dc.relation.ispartofWASTE AND BIOMASS VALORIZATION
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBiogas
dc.subjectDesulfurization
dc.subjectInorganics deposition
dc.subjectCH4 content
dc.subjectMembrane separation
dc.subjectHYDROGEN-SULFIDE
dc.subjectGAS-ABSORPTION
dc.subjectCO2 SEPARATION
dc.subjectREMOVAL
dc.subjectCONTACTORS
dc.subjectPURIFICATION
dc.subjectBIOREACTOR
dc.subjectRESISTANCE
dc.subjectDIGESTION
dc.subjectCAPTURE
dc.titleEffect of Operating Conditions on Separation of H2S from Biogas Using a Chemical Assisted PDMS Membrane Process
dc.typearticle
dspace.entity.typePublication
local.avesis.idc7603cd6-b66c-45df-b17b-a6b918e293c6
local.import.packageSS17
local.indexed.atWOS
local.indexed.atSCOPUS
local.journal.numberofpages11
local.journal.quartileQ2
oaire.citation.endPage2359
oaire.citation.issue12
oaire.citation.startPage2349
oaire.citation.titleWASTE AND BIOMASS VALORIZATION
oaire.citation.volume9
relation.isAuthorOfPublication2e20fe96-469a-44e0-88b2-e56450a93cf6
relation.isAuthorOfPublication.latestForDiscovery2e20fe96-469a-44e0-88b2-e56450a93cf6

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