Bromine and iodine for selective partial oxidation of propane and methane

D. Chester Upham, Henrik Høgh Kristoffersen, Zachary R. Snodgrass, Michael J. Gordon, Horia Metiu*, Eric W. McFarland

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The oxidative dehydrogenation of propane to propylene can be enhanced through the addition of a halogen to a feed of oxygen and propane. In this paper, we examine halogen-assisted oxidative dehydrogenation by a mixture of I2 and Br2. We find that adding a small amount of Br2 to a feed of I2, C3H8, and O2 produces propylene with 71% propane conversion and 83% propylene selectivity. Good performance is also obtained if a small amount of I2 is added to a feed of Br2, C3H8, and O2. In both cases, the propylene yield is greater than the sum of the yields obtained with iodine and bromine separately. A variety of studies were performed to help understand the reaction mechanism. Methane halogenation was also investigated by using combinations of iodine and bromine to produce methyl iodide, and a microkinetic model was also constructed for methane halogenation in the gas-phase to help understand the mechanism.
Original languageEnglish
JournalApplied Catalysis A: General
Volume580
Pages (from-to)102-110
ISSN0926-860X
DOIs
Publication statusPublished - 2019

Keywords

  • Dehydrogenation
  • Halogens
  • Propylene
  • Methyl iodide

Cite this

Upham, D. Chester ; Kristoffersen, Henrik Høgh ; Snodgrass, Zachary R. ; Gordon, Michael J. ; Metiu, Horia ; McFarland, Eric W. / Bromine and iodine for selective partial oxidation of propane and methane. In: Applied Catalysis A: General. 2019 ; Vol. 580. pp. 102-110.
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abstract = "The oxidative dehydrogenation of propane to propylene can be enhanced through the addition of a halogen to a feed of oxygen and propane. In this paper, we examine halogen-assisted oxidative dehydrogenation by a mixture of I2 and Br2. We find that adding a small amount of Br2 to a feed of I2, C3H8, and O2 produces propylene with 71{\%} propane conversion and 83{\%} propylene selectivity. Good performance is also obtained if a small amount of I2 is added to a feed of Br2, C3H8, and O2. In both cases, the propylene yield is greater than the sum of the yields obtained with iodine and bromine separately. A variety of studies were performed to help understand the reaction mechanism. Methane halogenation was also investigated by using combinations of iodine and bromine to produce methyl iodide, and a microkinetic model was also constructed for methane halogenation in the gas-phase to help understand the mechanism.",
keywords = "Dehydrogenation, Halogens, Propylene, Methyl iodide",
author = "Upham, {D. Chester} and Kristoffersen, {Henrik H{\o}gh} and Snodgrass, {Zachary R.} and Gordon, {Michael J.} and Horia Metiu and McFarland, {Eric W.}",
year = "2019",
doi = "10.1016/j.apcata.2019.05.003",
language = "English",
volume = "580",
pages = "102--110",
journal = "Applied Catalysis A: General",
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Bromine and iodine for selective partial oxidation of propane and methane. / Upham, D. Chester; Kristoffersen, Henrik Høgh; Snodgrass, Zachary R. ; Gordon, Michael J. ; Metiu, Horia; McFarland, Eric W.

In: Applied Catalysis A: General, Vol. 580, 2019, p. 102-110.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Bromine and iodine for selective partial oxidation of propane and methane

AU - Upham, D. Chester

AU - Kristoffersen, Henrik Høgh

AU - Snodgrass, Zachary R.

AU - Gordon, Michael J.

AU - Metiu, Horia

AU - McFarland, Eric W.

PY - 2019

Y1 - 2019

N2 - The oxidative dehydrogenation of propane to propylene can be enhanced through the addition of a halogen to a feed of oxygen and propane. In this paper, we examine halogen-assisted oxidative dehydrogenation by a mixture of I2 and Br2. We find that adding a small amount of Br2 to a feed of I2, C3H8, and O2 produces propylene with 71% propane conversion and 83% propylene selectivity. Good performance is also obtained if a small amount of I2 is added to a feed of Br2, C3H8, and O2. In both cases, the propylene yield is greater than the sum of the yields obtained with iodine and bromine separately. A variety of studies were performed to help understand the reaction mechanism. Methane halogenation was also investigated by using combinations of iodine and bromine to produce methyl iodide, and a microkinetic model was also constructed for methane halogenation in the gas-phase to help understand the mechanism.

AB - The oxidative dehydrogenation of propane to propylene can be enhanced through the addition of a halogen to a feed of oxygen and propane. In this paper, we examine halogen-assisted oxidative dehydrogenation by a mixture of I2 and Br2. We find that adding a small amount of Br2 to a feed of I2, C3H8, and O2 produces propylene with 71% propane conversion and 83% propylene selectivity. Good performance is also obtained if a small amount of I2 is added to a feed of Br2, C3H8, and O2. In both cases, the propylene yield is greater than the sum of the yields obtained with iodine and bromine separately. A variety of studies were performed to help understand the reaction mechanism. Methane halogenation was also investigated by using combinations of iodine and bromine to produce methyl iodide, and a microkinetic model was also constructed for methane halogenation in the gas-phase to help understand the mechanism.

KW - Dehydrogenation

KW - Halogens

KW - Propylene

KW - Methyl iodide

U2 - 10.1016/j.apcata.2019.05.003

DO - 10.1016/j.apcata.2019.05.003

M3 - Journal article

VL - 580

SP - 102

EP - 110

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

SN - 0926-860X

ER -