Thermodynamic analysis of steam reforming and oxidative steam reforming of propane and butane for hydrogen production

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Resumé

Thermodynamic analyses of cracking, partial oxidation (POX), steam reforming (SR) and oxidative steam reforming (OSR) of butane and propane (for comparison) were performed using the Gibbs free energy minimization method under the reaction conditions of T = 250–1000 °C, steam-to-carbon ratio (S/C) of 0.5–5 and O2/HC (hydrocarbon) ratio of 0–2.4. The simulations for the cracking and POX processes showed that olefins and acetylene can be easily generated through the cracking reactions and can be removed by adding an appropriate amount of oxygen. For SR and OSR of propane and butane, predicted carbon formation only occurred at low S/C ratios (<2) with the maximum level of carbon formation at 550–650 °C. For the thermal-neutral conditions, the TN temperatures decrease with the increase of the S/C ratio (except for O/C = 0.6) and the decrease of the O/C ratio. The simulated results for SR or OSR of propane and butane are very close under the investigated conditions.
OriginalsprogEngelsk
TidsskriftInternational Journal of Hydrogen Energy
Vol/bind43
Udgave nummer29
Sider (fra-til)13009-13021
Antal sider13
ISSN0360-3199
DOI
StatusUdgivet - jul. 2018

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Steam reforming
Butane
hydrogen production
Hydrogen production
butanes
Propane
propane
steam
Thermodynamics
thermodynamics
Carbon
carbon
Oxidation
Gibbs free energy
Acetylene
oxidation
Olefins
acetylene
Steam
alkenes

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title = "Thermodynamic analysis of steam reforming and oxidative steam reforming of propane and butane for hydrogen production",
abstract = "Thermodynamic analyses of cracking, partial oxidation (POX), steam reforming (SR) and oxidative steam reforming (OSR) of butane and propane (for comparison) were performed using the Gibbs free energy minimization method under the reaction conditions of T = 250–1000 °C, steam-to-carbon ratio (S/C) of 0.5–5 and O2/HC (hydrocarbon) ratio of 0–2.4. The simulations for the cracking and POX processes showed that olefins and acetylene can be easily generated through the cracking reactions and can be removed by adding an appropriate amount of oxygen. For SR and OSR of propane and butane, predicted carbon formation only occurred at low S/C ratios (<2) with the maximum level of carbon formation at 550–650 °C. For the thermal-neutral conditions, the TN temperatures decrease with the increase of the S/C ratio (except for O/C = 0.6) and the decrease of the O/C ratio. The simulated results for SR or OSR of propane and butane are very close under the investigated conditions.",
keywords = "Thermodynamic analysis, Steam reforming, Liquefied petroleum gas, Butane, Carbon formation",
author = "Xiaoti Cui and K{\ae}r, {S{\o}ren Knudsen}",
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Thermodynamic analysis of steam reforming and oxidative steam reforming of propane and butane for hydrogen production. / Cui, Xiaoti; Kær, Søren Knudsen.

I: International Journal of Hydrogen Energy, Bind 43, Nr. 29, 07.2018, s. 13009-13021.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Thermodynamic analysis of steam reforming and oxidative steam reforming of propane and butane for hydrogen production

AU - Cui, Xiaoti

AU - Kær, Søren Knudsen

PY - 2018/7

Y1 - 2018/7

N2 - Thermodynamic analyses of cracking, partial oxidation (POX), steam reforming (SR) and oxidative steam reforming (OSR) of butane and propane (for comparison) were performed using the Gibbs free energy minimization method under the reaction conditions of T = 250–1000 °C, steam-to-carbon ratio (S/C) of 0.5–5 and O2/HC (hydrocarbon) ratio of 0–2.4. The simulations for the cracking and POX processes showed that olefins and acetylene can be easily generated through the cracking reactions and can be removed by adding an appropriate amount of oxygen. For SR and OSR of propane and butane, predicted carbon formation only occurred at low S/C ratios (<2) with the maximum level of carbon formation at 550–650 °C. For the thermal-neutral conditions, the TN temperatures decrease with the increase of the S/C ratio (except for O/C = 0.6) and the decrease of the O/C ratio. The simulated results for SR or OSR of propane and butane are very close under the investigated conditions.

AB - Thermodynamic analyses of cracking, partial oxidation (POX), steam reforming (SR) and oxidative steam reforming (OSR) of butane and propane (for comparison) were performed using the Gibbs free energy minimization method under the reaction conditions of T = 250–1000 °C, steam-to-carbon ratio (S/C) of 0.5–5 and O2/HC (hydrocarbon) ratio of 0–2.4. The simulations for the cracking and POX processes showed that olefins and acetylene can be easily generated through the cracking reactions and can be removed by adding an appropriate amount of oxygen. For SR and OSR of propane and butane, predicted carbon formation only occurred at low S/C ratios (<2) with the maximum level of carbon formation at 550–650 °C. For the thermal-neutral conditions, the TN temperatures decrease with the increase of the S/C ratio (except for O/C = 0.6) and the decrease of the O/C ratio. The simulated results for SR or OSR of propane and butane are very close under the investigated conditions.

KW - Thermodynamic analysis

KW - Steam reforming

KW - Liquefied petroleum gas

KW - Butane

KW - Carbon formation

U2 - 10.1016/j.ijhydene.2018.05.083

DO - 10.1016/j.ijhydene.2018.05.083

M3 - Journal article

VL - 43

SP - 13009

EP - 13021

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

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