An Insight into the Evolution of Sulfur Species during the Integration Process of Residue Hydrotreating and Delayed Coking

Zhao, Jun; Ren, Liang; Liu, Tao; Li-Shun, Dai; Zhang, Le; Han, Wei; Li, Dadong

doi:10.1021/acs.iecr.0c02036

Cited by 12 publications

(3 citation statements)

References 37 publications

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“…Leucin enkephalin to setup the analog–digital convertor and detector in cIM–MS was purchased from Waters Corp. (Milford, MA, U.S.A.). For (+)APPI cIM–MS and FT-ICR MS analyses, two residue samples were dissolved in 100% toluene at a concentration of 0.5 mg/mL. ,, …”

Section: Methodssupporting

confidence: 64%

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Molecular-Level Structural Analysis of Hydrotreated and Untreated Atmospheric Residue Oils via Atmospheric Pressure Photoionization Cyclic Ion Mobility Mass Spectrometry and Ultrahigh-Resolution Mass Spectrometry

Cho

Rakhmat

et al. 2021

Energy Fuels

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Changes in the structure of oil compounds subjected to hydrodesulfurization were investigated using ultrahigh-resolution mass spectrometry (UHR-MS) and cyclic ion mobility mass spectrometry (cIM–MS) techniques. The isolation of ions with a separation of less than 0.1 Da followed by collision-induced dissociation helped clarify the structure. The class and double bond equivalence (DBE) distributions of the HC class observed by UHR-MS indicated that sulfur-containing compounds were transformed to HC compounds, in accordance with the previously reported mechanisms. The transformation was further observed by examining the tandem mass spectra of HC class compounds with the DBE values. The fragility of the molecules to collision-induced dissociation increased after hydrodesulfurization as a result of the increased abundance of naphthenic rings in the processed oils. The structural change was influenced by the DBE, and the most significant structural changes corresponded to HC compounds with DBE of 7. It was considered that compounds with naphthalene in the core structure were dominant in the untreated oils; however, the number of compounds with multiple naphthenic rings increased after the treatment. Moreover, the abundance of HC compounds with short alkyl chains likely increased. The results indicate that UHR-MS and cIM–MS are effective tools to clarify molecular-level changes in processed oils.

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Section: Methodssupporting

confidence: 64%

“…For (+)APPI cIM−MS and FT-ICR MS analyses, two residue samples were dissolved in 100% toluene at a concentration of 0.5 mg/mL. 15,34,35 Instruments. A cIM−MS instrument (SELECT SERIES, Waters Corporation, Wilmslow, U.K.) was adopted.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Molecular-Level Structural Analysis of Hydrotreated and Untreated Atmospheric Residue Oils via Atmospheric Pressure Photoionization Cyclic Ion Mobility Mass Spectrometry and Ultrahigh-Resolution Mass Spectrometry

Cho

Rakhmat

et al. 2021

Energy Fuels

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“…The process optimized the conversion of the refractory thiophenic sulfurs into sulfidic sulfurs as indicated by the increasing abundance of sulfidic sulfur, which thereby helped to reduce the sulfur content in coke. Moreover, it was demonstrated that the saturation of condensed-aromatic-ring structures of some refractory thiophenic sulfurs is promoted and thus the thermal cracking of these sulfurs [ 265 ].…”

Section: Applications To Sulfurmentioning

confidence: 99%

On-Line Thermally Induced Evolved Gas Analysis: An Update—Part 1: EGA-MS

et al. 2022

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Advances in on-line thermally induced evolved gas analysis (OLTI-EGA) have been systematically reported by our group to update their applications in several different fields and to provide useful starting references. The importance of an accurate interpretation of the thermally-induced reaction mechanism which involves the formation of gaseous species is necessary to obtain the characterization of the evolved products. In this review, applications of Evolved Gas Analysis (EGA) performed by on-line coupling heating devices to mass spectrometry (EGA-MS), are reported. Reported references clearly demonstrate that the characterization of the nature of volatile products released by a substance subjected to a controlled temperature program allows us to prove a supposed reaction or composition, either under isothermal or under heating conditions. Selected 2019, 2020, and 2021 references are collected and briefly described in this review.

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Synergistic effects and kinetics analysis for co-pyrolysis of vacuum residue and plastics

Wang,

Shi,

Duan

et al. 2024

Front. Chem. Sci. Eng.

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An Insight into the Evolution of Sulfur Species during the Integration Process of Residue Hydrotreating and Delayed Coking

Cited by 12 publications

References 37 publications

Molecular-Level Structural Analysis of Hydrotreated and Untreated Atmospheric Residue Oils via Atmospheric Pressure Photoionization Cyclic Ion Mobility Mass Spectrometry and Ultrahigh-Resolution Mass Spectrometry

Molecular-Level Structural Analysis of Hydrotreated and Untreated Atmospheric Residue Oils via Atmospheric Pressure Photoionization Cyclic Ion Mobility Mass Spectrometry and Ultrahigh-Resolution Mass Spectrometry

On-Line Thermally Induced Evolved Gas Analysis: An Update—Part 1: EGA-MS

Synergistic effects and kinetics analysis for co-pyrolysis of vacuum residue and plastics

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