Hydrogen production by steam reforming of propane and LPG over supported metal catalysts

Ramantani, Theodora; Evangeliou, Vissarion; Kormentzas, George; Kondarides, Dimitris Ι.

doi:10.1016/j.apcatb.2022.121129

Cited by 24 publications

(6 citation statements)

References 70 publications

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“…12A, may be attributed to the appearance of the larger Pt particles. It is consistent with the findings of Ramantani et al , 50 who discovered that the formation of CH x , which originates from the cracking of propane, was identified in more quantities over the less-active catalysts at around 600 °C. Furthermore, the carbon balance could maintain above 95% even after 10 cycles, suggesting that the amount of carbon deposited during the cyclic test was negligible.…”

Section: Resultssupporting

confidence: 92%

“…1B, no features belonging to graphitized carbon species were observed in the XRD patterns, implying that the amorphous and/or some filamentous carbon may deposit over the spent catalysts, and the coke deposition usually considered as one of the main causes of catalyst deactivation for dry reforming of hydrocarbons on supported precious metals or Ni-based catalysts. 47,50 Raman, TGA, and O 2 -TPO were then used to analyze the deposited carbon species on these spent Pt/ZrO 2 -xCaO catalysts, with the results displayed in Fig. 8.…”

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

“…In this work, a series of Pt/ZrO 2 -CaO bifunctional catalysts were prepared for CO 2 capture and conversion to syngas under the C 3 H 8 atmosphere. Pt, [49][50][51][52][53][54] as one of the noble metal catalysts, has gained a lot of attention in recent years due to its superior activity and less coke formation than Ni in the propane reforming reaction. ZrO 2 -CaO, as the CO 2 sorbent, has demonstrated excellent CO 2 capture capacity, durability, and long-term cyclic stability in our previous work.…”

Section: Introductionmentioning

confidence: 99%

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CO₂ capture and conversion to syngas via dry reforming of C₃H₈ over a Pt/ZrO₂–CaO catalyst

Dong

Yang

et al. 2023

Catal. Sci. Technol.

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Section: Resultssupporting

confidence: 92%

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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CO₂ capture and conversion to syngas via dry reforming of C₃H₈ over a Pt/ZrO₂–CaO catalyst

Dong

Yang

et al. 2023

Catal. Sci. Technol.

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“…Steam reforming extends beyond methane and can involve other alkanes such as propane [13][14][15], butane [16,17], methanol [18,19], and ethanol [20], among others. The choice of catalyst plays a crucial role in determining the efficiency of the steam reforming reaction.…”

Section: Introductionmentioning

confidence: 99%

Analytical and Numerical Thermodynamic Equilibrium Simulations of Steam Methane Reforming: A Comparison Study

Varandas,

Oliveira,

Borges

2024

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Computer simulation is a crucial element in the design of chemical processes. Although numerous commercial software options are widely recognized, the expense associated with acquiring and sustaining valid software licenses can be prohibitive. In contrast, open-source software, being freely available, provides an opportunity for individuals to study, review, and modify simulation models. This accessibility fosters technology transfer and facilitates knowledge dissemination, benefiting both academic and industrial domains. In this study, a thermodynamic equilibrium steady-state analysis of steam methane reforming using a natural-gas-like intake fuel was conducted. An analytical method was developed on the Microsoft Excel platform, utilizing the material balance equations system. The obtained results were compared to numerical methods employing the free-of-charge chemical process simulation software COCO and DWSIM. The investigation explored the influence of temperature, pressure, and steam-to-carbon ratio to determine optimal operating conditions. The findings suggest that higher temperatures and lower pressures are highly favorable for this process, considering that the choice of steam-to-carbon ratio depends on the desired conversion, with a potential disadvantage of coke formation at lower values. Consistent results were obtained through both analytical and numerical methods. Notably, simulations performed using DWSIM showed a deviation of 6.42% on average compared to COCO values. However, it was observed that the analytical method tended to overestimate the results by an average of 3.01% when compared to the simulated results from COCO, highlighting the limitations of this analytical approach.

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“…For medium-scale local or mobile power stations applying expensive, but more stable and efficient, noble metal-based catalysts may be a reasonable solution. According to data collected by the scientific community, the most active catalysts of C 2+ -hydrocarbon reforming are those based on Rh, Ru, Ir, and Pt [ 12 , 13 , 14 ]. Information about the compositions of efficient catalysts can be successfully used for the development of new catalytic system preparation methods [ 15 ], and in that work, we used information about the most active granular catalysts for designing structured catalysts.…”

Section: Introductionmentioning

confidence: 99%

Composite Structured M/Ce0.75Zr0.25O2/Al2O3/FeCrAl (M = Pt, Rh, and Ru) Catalysts for Propane and n-Butane Reforming to Syngas

et al. 2022

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Here, we report the preparation, characterization, and performance of reforming propane and n-butane into a syngas of composite structured M/Ce0.75Zr0.25O2/Al2O3/FeCrAl (M = 0.46 wt.% Pt, 0.24 wt.% Rh, and 0.24 wt.% Ru) catalysts. The catalysts are composed of a high-heat-conducting FeCrAl block with preset geometry, with a surface nearly totally covered by θ-Al2O3. Afterwards, a layer of ceria–zirconia mixed oxide was deposited. The formed oxide coating was used as a support for 2–3 nm sized Pt, Rh, or Ru nanoparticles. The performance of the catalysts in propane steam reforming decreased in the order of Rh ≈ Ru > Pt. The reformates obtained in the propane steam reforming over Rh- and Ru/Ce0.75Zr0.25O2/Al2O3/FeCrAl at 600 °C and GHSV = 8300 h−1 contained 65.2 and 62.4 vol.% of H2, respectively, and can be used as a fuel for solid oxide fuel cells. In the oxidative steam reforming of propane at 700 °C and GHSV= 17,000 h−1, the activities of the Rh- and Pt-based catalysts were similar and the compositions of the outlet gas mixtures were quite close to equilibrium in both cases. Increasing the reagent flow rate to 25,600 h−1 showed stability of the Rh/Ce0.75Zr0.25O2/Al2O3/FeCrAl performance, whereas the Pt/Ce0.75Zr0.25O2/Al2O3/FeCrAl activity decreased. A mathematical model considering the velocity field, mass balance, pressure, and temperature distribution, as well as the reaction kinetics, was suggested for the propane steam and oxidative steam reforming over the Pt- and Rh/Ce0.75Zr0.25O2/Al2O3/FeCrAl catalysts. The model well described the experimental results.

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Hydrogen production by steam reforming of propane and LPG over supported metal catalysts

Cited by 24 publications

References 70 publications

CO₂ capture and conversion to syngas via dry reforming of C₃H₈ over a Pt/ZrO₂–CaO catalyst

CO₂ capture and conversion to syngas via dry reforming of C₃H₈ over a Pt/ZrO₂–CaO catalyst

Analytical and Numerical Thermodynamic Equilibrium Simulations of Steam Methane Reforming: A Comparison Study

Composite Structured M/Ce0.75Zr0.25O2/Al2O3/FeCrAl (M = Pt, Rh, and Ru) Catalysts for Propane and n-Butane Reforming to Syngas

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Hydrogen production by steam reforming of propane and LPG over supported metal catalysts

Cited by 24 publications

References 70 publications

CO2 capture and conversion to syngas via dry reforming of C3H8 over a Pt/ZrO2–CaO catalyst

CO2 capture and conversion to syngas via dry reforming of C3H8 over a Pt/ZrO2–CaO catalyst

Analytical and Numerical Thermodynamic Equilibrium Simulations of Steam Methane Reforming: A Comparison Study

Composite Structured M/Ce0.75Zr0.25O2/Al2O3/FeCrAl (M = Pt, Rh, and Ru) Catalysts for Propane and n-Butane Reforming to Syngas

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Product

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CO₂ capture and conversion to syngas via dry reforming of C₃H₈ over a Pt/ZrO₂–CaO catalyst

CO₂ capture and conversion to syngas via dry reforming of C₃H₈ over a Pt/ZrO₂–CaO catalyst