The role of contact time and input amount of 1,1,1,2-tetrafluoroethane (HFC-134a) on the catalyst lifetime and product selectivity in catalytic pyrolysis
DC Field | Value | Language |
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dc.contributor.author | Anus, Ali | - |
dc.contributor.author | Sheraz, Mahshab | - |
dc.contributor.author | Jeong, Sangjae | - |
dc.contributor.author | Swamidoss, Caroline Mercy Andrew | - |
dc.contributor.author | Kim, Young-Min | - |
dc.contributor.author | Aslam, Muhammad Awais | - |
dc.contributor.author | Kim, Eui-kun | - |
dc.contributor.author | Kim, Seungdo | - |
dc.date.accessioned | 2021-09-10T05:47:20Z | - |
dc.date.available | 2021-09-10T05:47:20Z | - |
dc.date.issued | 2021-06 | - |
dc.identifier.issn | 0256-1115 | - |
dc.identifier.issn | 1975-7220 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/18811 | - |
dc.description.abstract | During catalytic pyrolysis of HFC-134a over gamma-alumina, the formation of HF and coke causes catalyst deactivation. Catalyst deactivation and product selectivity depend on the contact time during catalytic pyrolysis of HFC-134a as reported in this paper. gamma-Alumina calcined at 650 C-o was used as the catalyst due to its higher quantity of acidic sites and larger surface area, which are crucial for catalytic pyrolysis. X-ray diffraction (XRD), scanning electron microscope-energy dispersive X-ray spectroscopy (SEM-EDS), and thermogravimetric analysis (TGA) of the catalysts were performed to determine the influence of contact time and flow rate of HFC-134a. 2 mL/min of HFC-134a balanced with nitrogen to 25, 50, 100, and 200 mL/min total flow rates was studied at 600 C-o. 200 mL/min showed a 9.4 h catalyst lifetime with a small number of by-products. Shorter contact time between HFC-134a and HF with the catalyst was found to be the key to the longer lifetime of the catalyst. The catalyst lifetime was decreased with an increase in the HFC-134a input amount. Among 2, 4, and 6 mL/min input of HFC-134a, 2 mL/min showed the longest catalytic activity followed by 4 and 6 mL/min, respectively. Conversion of gamma-alumina into AlF3 and deposition of coke were responsible for the deactivation. | - |
dc.format.extent | 8 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | 한국화학공학회 | - |
dc.title | The role of contact time and input amount of 1,1,1,2-tetrafluoroethane (HFC-134a) on the catalyst lifetime and product selectivity in catalytic pyrolysis | - |
dc.type | Article | - |
dc.publisher.location | 대한민국 | - |
dc.identifier.doi | 10.1007/s11814-021-0776-6 | - |
dc.identifier.scopusid | 2-s2.0-85107286121 | - |
dc.identifier.wosid | 000656936400005 | - |
dc.identifier.bibliographicCitation | Korean Journal of Chemical Engineering, v.38, no.6, pp 1240 - 1247 | - |
dc.citation.title | Korean Journal of Chemical Engineering | - |
dc.citation.volume | 38 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 1240 | - |
dc.citation.endPage | 1247 | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART002719953 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | HYDROLYTIC DECOMPOSITION | - |
dc.subject.keywordPlus | DEHYDROFLUORINATION | - |
dc.subject.keywordPlus | GAMMA-AL2O3 | - |
dc.subject.keywordPlus | CONVERSION | - |
dc.subject.keywordPlus | CF4 | - |
dc.subject.keywordPlus | GAS | - |
dc.subject.keywordAuthor | Catalytic Conversion | - |
dc.subject.keywordAuthor | Pyrolysis | - |
dc.subject.keywordAuthor | Contact Time | - |
dc.subject.keywordAuthor | gamma-Al2O3 | - |
dc.subject.keywordAuthor | HFC-134a | - |
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