Compositional Characterization of Pyrolysis Fuel Oil from Naphtha and Vacuum Gas Oil

Ristic, Nenad; Djokic, Marko; Delbeke, Elisabeth; Gonzalez‐Quiroga, Arturo; Stevens, Christian V.; Marin, Guy

doi:10.1021/acs.energyfuels.7b03242

Cited by 17 publications

(12 citation statements)

References 63 publications

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“…It is known that residues >450 °C in HCO and ET consist of polycyclic aromatic compounds. , ET, as other product of pyrolysis of petroleum feedstocks, is characterized by the content of technogenic asphaltenes (heptane-insoluble residue by IP 143) and resins (polar compounds by IP 469). Technogenic asphaltenes ( W = 14 wt %) isolated from ET are characterized by a molecular mass distribution from 100 to 1200 m / z , with M max = 550 m / z .…”

Section: Resultsmentioning

confidence: 99%

Application of Ethylene Tar as an Additive in Visbreaking of Petroleum Vacuum Residue

et al. 2021

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The byproduct of ethylene tar has a high content of mono-, bi-, and polycyclic aromatic compounds, as well as cycloalkenes, including aromatic cycloalkenes. This paper evaluates the prospects of using ethylene tar as an additive in the visbreaking process of vacuum residue. A series of experiments on visbreaking of vacuum residue with additives of various refinery streams and ethylene tar were performed in a laboratory flow reactor. As a result of a comparative study of the composition of vacuum residue visbreaking products by different methods, it was shown that the use of ethylene tar compared with kerosene, light cycle oil, and heavy cycle oil allows an increased yield of the target product with a higher proportion of aromatic hydrocarbons. A comparative analysis of the characteristics of asphaltenes and resins of visbreaking products indicates a general trend of changes in the process of visbreaking vacuum residue with refinery streams and ethylene tar. A comparison of the colloidal instability index showed that the use of ethylene tar allows attainment of a more stable visbreaking product concerning refinery streams as additives.

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Section: Resultsmentioning

confidence: 99%

Application of Ethylene Tar as an Additive in Visbreaking of Petroleum Vacuum Residue

et al. 2021

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“…PAHs may result in coke deposition in the reactor and the transfer line which ultimately leads to severe blockages ( Towfighi et al, 2002 , Ristic et al, 2018 ).…”

Section: Contaminants As Bottleneck In Steam Crackingmentioning

confidence: 99%

Opportunities and challenges for the application of post-consumer plastic waste pyrolysis oils as steam cracker feedstocks: To decontaminate or not to decontaminate?

et al. 2022

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“…For example, in ethylene crackers, the aromatic content is often 10–25%, 13 while the naphtha fractions of respectively Arab and Kurdish crude oils contain about 9–15 vol% 37 and 16.3 vol% 38 aromatic compounds. After catalytic reforming, the subsequent reformate can contain up to 55 wt% of aromatic compounds 37 and vacuum gas oil may contain 33.3 wt% 39 . The last example is pyrolytic light naphtha oil from used tires, which can contain 51.8 wt% of aromatic compounds 40 .…”

Section: Introductionmentioning

confidence: 99%

Comparison of solvent‐based affinity separation processes using Cyrene and Sulfolane for aromatic/aliphatic separations

Brouwer

Schuur

2021

J of Chemical Tech & Biotech

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BACKGROUND Vapor–liquid and liquid–liquid equilibria of unsaturated and saturated hydrocarbons with the bio‐based solvent dihydrolevoglucosenone, trademarked as Cyrene, have been reported recently, aiming at the utilization of the solvent in liquid–liquid extraction (LLX) and extractive distillation (ED). In this work, for a model system comprised of methylcyclohexane (MCH) and toluene (TOL), both LLX‐based and ED‐based processes were compared over a wide range of compositions based on simulations in AspenPlus V10. An economic evaluation based on total annual costs was performed, and the processes using Cyrene were compared with equivalent processes using the industrial benchmark Sulfolane. RESULTS In the absence of literature data for Sulfolane–MCH–TOL, additional liquid–liquid extractions were done to facilitate parameter estimation for simulation. The Cyrene‐based ED process was found to be more efficient than the Sulfolane‐based ED process, primarily at lower (<50 mol%) TOL feed concentration, but also higher TOL feed concentrations. For LLX purposes it was found that the Cyrene‐based LLX process was economically the least attractive, primarily due to the larger miscibility region of Cyrene with the hydrocarbon mixture. CONCLUSIONS The overall conclusion for this specific binary mixture is that LLX with Sulfolane is most economic at a TOL feed concentration of <30 mol%, while for >30 mol% the ED process with Cyrene is most economic. This process analysis showed that Cyrene is an appropriate bio‐based alternative for Sulfolane as an entrainer for ED processes to separate aromatics and aliphatics. © 2021 The Authors. Journal of Chemical Technology and Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry (SCI).

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Compositional Characterization of Pyrolysis Fuel Oil from Naphtha and Vacuum Gas Oil

Cited by 17 publications

References 63 publications

Application of Ethylene Tar as an Additive in Visbreaking of Petroleum Vacuum Residue

Application of Ethylene Tar as an Additive in Visbreaking of Petroleum Vacuum Residue

Opportunities and challenges for the application of post-consumer plastic waste pyrolysis oils as steam cracker feedstocks: To decontaminate or not to decontaminate?

Comparison of solvent‐based affinity separation processes using Cyrene and Sulfolane for aromatic/aliphatic separations

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