Abstract
A quantitative comparison of the performance of the most common reactor configurations proposed for the oxidative coupling of methane (OCM) is made on the basis of numerical calculations with phenomenological reactor models. The configurations that are analyzed can be divided into two main categories, namely, packed-bed reactors (including conventional packed beds with external cooling, packed-bed membrane reactors, and adiabatic packed beds with post cracking) and fluidized bed reactors (bubbling fluidized bed reactor, circulating fluidized bed reactor, and fluidized bed membrane reactor). The challenges in both configuration types, mainly the heat management in the case of the packed-bed reactors and the low C 2+ yields obtained in fluidized bed reactors, are evaluated and quantified. To ensure a fair comparison, La 2 O 3 /CaO is chosen as the OCM catalyst for all the considered cases, mainly in view of the availability of a comprehensive kinetics model. The results show that, with conventional configurations, it is not possible to achieve high C 2+ yields that are needed to make the process economically viable. However, the results also indicate that the C 2+ yield can be significantly improved by feeding the oxygen distributively along the reactor axial length.
| Original language | English |
|---|---|
| Article number | 1900148 |
| Journal | Energy Technology |
| DOIs | |
| Publication status | E-pub ahead of print - 1 Jan 2019 |
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Keywords
- membrane reactors
- oxidative coupling of methane
- reactor selection
Cite this
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Oxidative coupling of methane : a comparison of different reactor configurations. / Cruellas, Aitor; Melchiori, Tommaso; Gallucci, Fausto; van Sint Annaland, Martin (Corresponding author).
In: Energy Technology, 01.01.2019.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Oxidative coupling of methane
T2 - a comparison of different reactor configurations
AU - Cruellas, Aitor
AU - Melchiori, Tommaso
AU - Gallucci, Fausto
AU - van Sint Annaland, Martin
PY - 2019/1/1
Y1 - 2019/1/1
N2 - A quantitative comparison of the performance of the most common reactor configurations proposed for the oxidative coupling of methane (OCM) is made on the basis of numerical calculations with phenomenological reactor models. The configurations that are analyzed can be divided into two main categories, namely, packed-bed reactors (including conventional packed beds with external cooling, packed-bed membrane reactors, and adiabatic packed beds with post cracking) and fluidized bed reactors (bubbling fluidized bed reactor, circulating fluidized bed reactor, and fluidized bed membrane reactor). The challenges in both configuration types, mainly the heat management in the case of the packed-bed reactors and the low C 2+ yields obtained in fluidized bed reactors, are evaluated and quantified. To ensure a fair comparison, La 2 O 3 /CaO is chosen as the OCM catalyst for all the considered cases, mainly in view of the availability of a comprehensive kinetics model. The results show that, with conventional configurations, it is not possible to achieve high C 2+ yields that are needed to make the process economically viable. However, the results also indicate that the C 2+ yield can be significantly improved by feeding the oxygen distributively along the reactor axial length.
AB - A quantitative comparison of the performance of the most common reactor configurations proposed for the oxidative coupling of methane (OCM) is made on the basis of numerical calculations with phenomenological reactor models. The configurations that are analyzed can be divided into two main categories, namely, packed-bed reactors (including conventional packed beds with external cooling, packed-bed membrane reactors, and adiabatic packed beds with post cracking) and fluidized bed reactors (bubbling fluidized bed reactor, circulating fluidized bed reactor, and fluidized bed membrane reactor). The challenges in both configuration types, mainly the heat management in the case of the packed-bed reactors and the low C 2+ yields obtained in fluidized bed reactors, are evaluated and quantified. To ensure a fair comparison, La 2 O 3 /CaO is chosen as the OCM catalyst for all the considered cases, mainly in view of the availability of a comprehensive kinetics model. The results show that, with conventional configurations, it is not possible to achieve high C 2+ yields that are needed to make the process economically viable. However, the results also indicate that the C 2+ yield can be significantly improved by feeding the oxygen distributively along the reactor axial length.
KW - membrane reactors
KW - oxidative coupling of methane
KW - reactor selection
UR - http://www.scopus.com/inward/record.url?scp=85065394454&partnerID=8YFLogxK
U2 - 10.1002/ente.201900148
DO - 10.1002/ente.201900148
M3 - Article
AN - SCOPUS:85065394454
JO - Energy Technology
JF - Energy Technology
SN - 2194-4288
M1 - 1900148
ER -