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dc.contributor.authorVeksha, Andreien_US
dc.contributor.authorGiannis, Apostolosen_US
dc.contributor.authorOh, Wen-Daen_US
dc.contributor.authorChang, Victor Wei-Chungen_US
dc.contributor.authorLisak, Grzegorzen_US
dc.identifier.citationVeksha, A., Giannis, A., Oh, W.-D., Chang, V. W.-C., & Lisak, G. (2018). Upgrading of non-condensable pyrolysis gas from mixed plastics through catalytic decomposition and dechlorination. Fuel Processing Technology, 170, 13-20. doi:10.1016/j.fuproc.2017.10.019en_US
dc.description.abstractThe non-condensable pyrolysis gas from plastic pyrolysis is a suitable fuel and precursor for chemical synthesis. Depending on downstream applications, the selective removal of unsaturated hydrocarbons and HCl released from polyvinyl chloride (PVC) is required. This study investigated the selective decomposition of unsaturated hydrocarbons with simultaneous dechlorination of non-condensable pyrolysis gas using a catalytic sorbent containing 5% NiO loaded on CaCO3 support (Ni-Ca) and pristine CaCO3 (Ca) at different temperatures, doses of catalytic sorbent and HCl contents. As a result, Ca removed 98.8% of HCl and decomposed 89% of alkynes and 23% of dienes at 700 °C. When applying Ni-Ca, the HCl removal was above 99% at all studied temperatures, while 90% decomposition of alkenes, dienes and alkynes was achieved, depending on temperature, Ni-Ca dose and HCl content. The higher HCl content in gas (43 mg against 13 mg) negatively influenced the catalytic activity of Ni-Ca, while increasing the selectivity towards the decomposition of alkenes, dienes and alkynes compared to alkanes. At 700 °C, 99.6% removal of unsaturated hydrocarbons by Ni-Ca was attained at only 10.1% conversion of alkanes. Thus, depending on the applied catalytic sorbent, either selective decomposition of alkynes and dienes (over Ca) or a mixture of unsaturated hydrocarbons (over Ni-Ca) was achieved with the simultaneous HCl removal from non-condensable pyrolysis gas.en_US
dc.description.sponsorshipEDB (Economic Devt. Board, S’pore)en_US
dc.relation.ispartofFuel Processing Technologyen_US
dc.rights© 2017 Elsevier B.V. All rights reserved.en_US
dc.subjectEngineering::Environmental engineeringen_US
dc.titleUpgrading of non-condensable pyrolysis gas from mixed plastics through catalytic decomposition and dechlorinationen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
dc.contributor.researchResidues and Resource Reclamation Centreen_US
dc.subject.keywordsCarbon Nanotubesen_US
dc.subject.keywordsCatalytic Sorbenten_US
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