Steam reforming of natural gas on noble-metal based catalysts: Predictive modeling

Schädel, B. T.; Deutschmann, Olaf

doi:10.1016/s0167-2991(07)80133-9

Cited by 6 publications

(1 citation statement)

References 9 publications

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“…Coke formation was found to be preferentially caused by surface reactions at medium temperatures and low steam-to-carbon ratios. 8,9,16 With increasing process temperatures, gas-phase reactions gain significance.…”

Section: Introductionmentioning

confidence: 99%

Natural Gas Steam Reforming over Rhodium/Alumina Catalysts: Experimental and Numerical Study of the Carbon Deposition from Ethylene and Carbon Monoxide

Eßmann¹,

Maier²,

et al. 2014

Ind. Eng. Chem. Res.

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Natural gas steam reforming (SR) over technically used rhodium/alumina (Rh/Al 2 O 3 ) honeycomb catalysts is studied experimentally at temperatures between 923 and 1073 K and steam-to-carbon ratios (S/C) of unity, with regard to coke deposition caused by the decomposition of the product species ethylene (C 2 H 4 ) and carbon monoxide (CO). Furthermore, the process is modeled using detailed reaction mechanisms, and numerical simulations are carried out to describe the coke formation on Rh/Al 2 O 3 catalysts quantitatively. The amount of deposited carbon was detected and analyzed for varying feed mixtures of the products CO and C 2 H 4 diluted in N 2 . During the decomposition of CO, the saturation of the amount of coke is monitored by feeding CO in high concentrations. No saturation occurs for the same amounts of coke resulting from the decomposition of C 2 H 4 . The coking rate caused by the decomposition of C 2 H 4 is found to be ∼25 times higher than the coking rate caused by the decomposition of CO. The differences in coking behavior caused by C 2 H 4 and CO, respectively, are described by coking models.

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Section: Introductionmentioning

confidence: 99%

Natural Gas Steam Reforming over Rhodium/Alumina Catalysts: Experimental and Numerical Study of the Carbon Deposition from Ethylene and Carbon Monoxide

Eßmann¹,

Maier²,

et al. 2014

Ind. Eng. Chem. Res.

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High Temperature Catalysis: Efficient Way for Chemical Conversion of Logistic Fuels

Deutschmann

2011

Chemie Ingenieur Technik

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High Temperature Catalysis: Efficient Way for Chemical Conversion of Logistic FuelsHeterogeneously catalyzed gas phase reactions at high temperatures have been used for energy conversion for a long time to convert chemical energy carriers into heat, electricity, and more valuable chemicals. Due to high temperatures and short residence times, the used devices exhibit complex, non-linear interactions between mass and heat transport as well as heterogeneous and sometimes homogeneous and electrocatalytic reactions. Optimization of reactor design and operating conditions calls for a better understanding of those interactions. This article discusses the current challenges in high temperature catalysis from fundamental and technological perspectives. The thematic focus is on the catalytic reforming of logistic fuels for the production of hydrogen-rich reformates.

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Syngas production from methane by reforming process: dry, steam, partial oxidation, and autothermal

Ballarini,

Nardi,

Tarifa

et al. 2024

Advances and Technology Development in Greenhouse Gases: Emission, Capture and Conversion

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Steam reforming of natural gas on noble-metal based catalysts: Predictive modeling

Cited by 6 publications

References 9 publications

Natural Gas Steam Reforming over Rhodium/Alumina Catalysts: Experimental and Numerical Study of the Carbon Deposition from Ethylene and Carbon Monoxide

Natural Gas Steam Reforming over Rhodium/Alumina Catalysts: Experimental and Numerical Study of the Carbon Deposition from Ethylene and Carbon Monoxide

High Temperature Catalysis: Efficient Way for Chemical Conversion of Logistic Fuels

Syngas production from methane by reforming process: dry, steam, partial oxidation, and autothermal

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