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The influence of dimethyl disulfide on naphtha steam cracking

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Abstract
A pilot unit for steam cracking equipped with a transfer line heat exchanger (TLE) that allows for the study of coke deposition in both the reactor and the TLE is presented. The reactor and TLE are made of Incoloy 800HT. The duration of a coking run typically amounts to 32.4 ks. The influence of different dimethyl disulfide (DMDS) addition procedures, i.e., continuous addition, presulfidation and presulfidation followed by continuous addition, on CO production and on coke deposition in the reactor and in the TLE during naphtha cracking is investigated. Presulfidation reduces CO production. However, to obtain a low and stable CO production, continuous addition of sulfur is required. The influence of sulfur addition on coke formation in the reactor can strongly differ from its influence on coke formation in the TLE. In the reactor, as well as in the TLE, the observed influence of sulfur addition is complex and strongly depends on the technique used. The optimal operating conditions for reducing CO production and minimizing coke formation consist of presulfidation followed by continuous dosing.
Keywords
CARBON DEPOSITION, THERMAL-CRACKING, PYROLYSIS, HYDROCARBONS, CATALYSTS, MECHANISM, NICKEL

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Chicago
Dhuyvetter, Inge, Marie-Françoise Reyniers, Gilbert Froment, Guy Marin, and D Viennet. 2001. “The Influence of Dimethyl Disulfide on Naphtha Steam Cracking.” Industrial & Engineering Chemistry Research 40 (20): 4353–4362.
APA
Dhuyvetter, I., Reyniers, M.-F., Froment, G., Marin, G., & Viennet, D. (2001). The influence of dimethyl disulfide on naphtha steam cracking. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 40(20), 4353–4362.
Vancouver
1.
Dhuyvetter I, Reyniers M-F, Froment G, Marin G, Viennet D. The influence of dimethyl disulfide on naphtha steam cracking. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH. 2001;40(20):4353–62.
MLA
Dhuyvetter, Inge, Marie-Françoise Reyniers, Gilbert Froment, et al. “The Influence of Dimethyl Disulfide on Naphtha Steam Cracking.” INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 40.20 (2001): 4353–4362. Print.
@article{169736,
  abstract     = {A pilot unit for steam cracking equipped with a transfer line heat exchanger (TLE) that allows for the study of coke deposition in both the reactor and the TLE is presented. The reactor and TLE are made of Incoloy 800HT. The duration of a coking run typically amounts to 32.4 ks. The influence of different dimethyl disulfide (DMDS) addition procedures, i.e., continuous addition, presulfidation and presulfidation followed by continuous addition, on CO production and on coke deposition in the reactor and in the TLE during naphtha cracking is investigated. Presulfidation reduces CO production. However, to obtain a low and stable CO production, continuous addition of sulfur is required. The influence of sulfur addition on coke formation in the reactor can strongly differ from its influence on coke formation in the TLE. In the reactor, as well as in the TLE, the observed influence of sulfur addition is complex and strongly depends on the technique used. The optimal operating conditions for reducing CO production and minimizing coke formation consist of presulfidation followed by continuous dosing.},
  author       = {Dhuyvetter, Inge and Reyniers, Marie-Fran\c{c}oise and Froment, Gilbert and Marin, Guy and Viennet, D},
  issn         = {0888-5885},
  journal      = {INDUSTRIAL \& ENGINEERING CHEMISTRY RESEARCH},
  keyword      = {CARBON DEPOSITION,THERMAL-CRACKING,PYROLYSIS,HYDROCARBONS,CATALYSTS,MECHANISM,NICKEL},
  language     = {eng},
  number       = {20},
  pages        = {4353--4362},
  title        = {The influence of dimethyl disulfide on naphtha steam cracking},
  url          = {http://dx.doi.org/10.1021/ie001131b},
  volume       = {40},
  year         = {2001},
}

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