Oxidative Coupling of Methane in Small Scale Parallel Reactors

Ras, Erik‐Jan; Gómez‐Quero, Santiago

doi:10.1007/s11244-014-0310-8

Cited by 5 publications

(4 citation statements)

References 13 publications

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“…Now, the dataset is subdivided to compare the performance of different catalysts. In the previous HTS research, the performance of OCM catalysts was measured at one or a few fixed conditions. , Meanwhile, our dataset provides the performance of 59 catalysts over a sufficiently wide range of reaction conditions. One obvious profit of such a dataset is that the potential of different catalysts is fairly evaluated at respective sweet spots.…”

Section: Resultsmentioning

confidence: 99%

“…A safety management system also backups the automation. Here, it is worth noting that HTS instruments having more or less similar mechanic design were reported in the literature, − but these instruments were mostly used for catalyst screening at one or a few fixed conditions. Our instrument enables the acquisition of a dataset that covers a parametric space for both catalysts and process conditions by means of parallelization and automation, respectively.…”

Section: Experimental and Analytical Detailsmentioning

confidence: 99%

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High-Throughput Experimentation and Catalyst Informatics for Oxidative Coupling of Methane

et al. 2019

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The presence of a dataset that covers a parametric space of materials and process conditions in a process-consistent manner is essential for the realization of catalyst informatics. Here, an important piece of progress is demonstrated for the oxidative coupling of methane. A high-throughput screening instrument is developed for enabling an automatic performance evaluation of 20 catalysts in 216 reaction conditions. This affords an oxidative coupling of methane dataset comprised of 12 708 data points for 59 catalysts in three successive operations. Based on a variety of data visualization analysis, important insights into catalysis and catalyst design are successfully extracted. In particular, the simultaneous optimization of the catalyst and reactor design is found to be essential for improving the C2 yield. The consistent dataset allows the accurate prediction of the C2 yield with the aid of nonlinear supervised machine learning.

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Section: Resultsmentioning

confidence: 99%

Section: Experimental and Analytical Detailsmentioning

confidence: 99%

High-Throughput Experimentation and Catalyst Informatics for Oxidative Coupling of Methane

et al. 2019

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“…Ras and Gomes-Quero [227] developed small-scale packed-bed OCM reactors operating at temperatures between 755 and 875 • C. They showed that the small- Gas-phase species continuity…”

Section: Reactor Technologiesmentioning

confidence: 99%

Progress in the direct catalytic conversion of methane to fuels and chemicals

Karakaya

Kee

2016

Progress in Energy and Combustion Science

311

201

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This paper reviews the state-of-the-art in catalytic processes to convert methane (a major component of natural gas) to more valuable hydrocarbons as fuels or chemicals. The scope is restricted to "direct" conversion, meaning that processes involving synthesis gas as an intermediate are not considered. Oxygenated products (e.g., alcohols) are also not considered. In all cases, the processes are concerned with catalytic dehydrogenation. The two most widely studied processes are Oxidative Coupling of Methane (OCM) and Methane Dehydroaromatization (MDA). After reviewing the relevant catalysis literature, the paper goes on to review reactor implementations. Hydrogen-and/or oxygenpermeable membranes can potentially play valuable roles in improving methane conversion and product yields. Despite over 30 years of research, there are still no direct-conversion processes that can compete commercially with methane reforming followed by processes such as Fischer-Tropsch synthesis. Thus, the future practical development and deployment of OCM and MDA will rely on the research and development of advanced catalysts and innovative processes. The present review helps to document the foundation on which the needed development can build.

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“…This is not the case here, as the quadruplicate test of diluted extrudates shows a difference no greater than 0.1 °C, which makes the observed difference in activity between diluted and undiluted extrudates statistically significant. This accuracy is due to the small scale of the experiment and well‐defined hydrodynamics – reducing heat effects by optimizing heat transfer and due to the use of parallel reactor technology – reducing typical run‐to‐run variability compared to single reactors.…”

Section: Resultsmentioning

confidence: 99%

Performance Testing of Hydrodesulfurization Catalysts Using a Single‐Pellet‐String Reactor

et al. 2017

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Dedicated to Professor Rüdiger Lange on the occasion of his 65th birthday Small-scale parallel trickle-bed reactors were used to evaluate the performance of a commercial hydrodesulfurization catalyst under industrially relevant conditions. Catalyst extrudates were loaded as a single string in reactor tubes. It is demonstrated that product sulfur levels and densities obtained with the single-pelletstring reactor are close to the results obtained in a bench-scale fixed-bed reactor operated under the same conditions. Moreover, parallel single-pellet-string reactors show high reproducibility. To study the hydrodynamic effects of the catalystbed packing, the catalyst-bed length was varied by loading different amounts of catalysts, and crushed catalyst was also loaded.

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Oxidative Coupling of Methane in Small Scale Parallel Reactors

Cited by 5 publications

References 13 publications

High-Throughput Experimentation and Catalyst Informatics for Oxidative Coupling of Methane

High-Throughput Experimentation and Catalyst Informatics for Oxidative Coupling of Methane

Progress in the direct catalytic conversion of methane to fuels and chemicals

Performance Testing of Hydrodesulfurization Catalysts Using a Single‐Pellet‐String Reactor

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