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dc.contributor.authorYasar, M
dc.contributor.authorKlein, MT
dc.contributor.authorTrauth, DM
dc.date.accessioned2021-03-04T12:10:06Z
dc.date.available2021-03-04T12:10:06Z
dc.date.issued2001
dc.identifier.citationYasar M., Trauth D., Klein M., "Asphaltene and resid pyrolysis. 2. The effect of reaction environment on pathways and selectivities", ENERGY & FUELS, cilt.15, sa.3, ss.504-509, 2001
dc.identifier.issn0887-0624
dc.identifier.otherav_76022db3-d3bf-453d-9ed1-f36e874c7594
dc.identifier.othervv_1032021
dc.identifier.urihttp://hdl.handle.net/20.500.12627/81050
dc.identifier.urihttps://doi.org/10.1021/ef0000577
dc.description.abstractPyrolysis experiments with resids and isolated asphaltenes from Arabian Light and Arabian Heavy feedstocks were compared with previous experiments with Hondo and Maya feeds to determine the effect of reaction environment on reaction paths, kinetics, and mechanisms. The experiments were at temperatures of 400, 425, and 450 degreesC for holding times ranging from 20 to 180 min in microbatch reactors. Reaction products were recovered as gas, maltene, asphaltene, and coke lumps. The maltene, asphaltene, and coke product fractions were collected by a solvent extraction sequence where heptane-soluble material was defined as maltene, toluene-soluble material as asphaltene, and toluene-insoluble material as coke. Gas chromatography revealed the presence of C-1-C-5 paraffins, C-2-C-5 olefins, isoparaffins, H2S, and CO2. Results were summarized by a lumped reaction network that allowed for quantitative kinetics analysis. Comparison of relative kinetics and apparent activation energies yielded insight into thermal reaction pathways, feedstock effects, and-asphaltene environment effects. At 400 and 425 degreesC, isolated asphaltene reacted selectively to maltene. At 450 degreesC, asphaltene reacted predominately to coke. Isolated maltene pyrolysis indicated that asphaltene and coke formed in series, i.e., maltene --> asphaltene --> coke.
dc.language.isoeng
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.subjectENERJİ VE YAKITLAR
dc.subjectMühendislik
dc.subjectMÜHENDİSLİK, KİMYASAL
dc.subjectTarımsal Bilimler
dc.subjectZiraat
dc.subjectTarım Makineleri
dc.subjectTarımda Enerji
dc.subjectBiyoyakıt Teknolojisi
dc.subjectKimya Mühendisliği ve Teknolojisi
dc.subjectMühendislik ve Teknoloji
dc.titleAsphaltene and resid pyrolysis. 2. The effect of reaction environment on pathways and selectivities
dc.typeMakale
dc.relation.journalENERGY & FUELS
dc.contributor.department, ,
dc.identifier.volume15
dc.identifier.issue3
dc.identifier.startpage504
dc.identifier.endpage509
dc.contributor.firstauthorID162022


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