Composite Rh/Zr0.25Ce0.75O2-δ-ƞ-Al2O3/Fecralloy wire mesh honeycomb module for natural gas, LPG and diesel catalytic conversion to syngas

Shoynkhorova, T.B.; Rogozhnikov, V.N.; Ruban, N.V.; Shilov, V.A.; Потемкин, Д.И.; Simonov, P.A.; Belyaev, V. D.; Snytnikov, P.V.; Sobyanin, V. A.

doi:10.1016/j.ijhydene.2018.12.148

Cited by 30 publications

(13 citation statements)

References 34 publications

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“…This value is sufficient for a 3 kW e SOFC feeding. In our earlier work [16], partial oxidation of NG and LPG was performed using structured Rh/CZ-Al/FCA catalytic module of a smaller size (2.5-time smaller than in this work). It was shown that at temperatures 820 (NG PO) and 950 о С (LPG PO) at the surface CHEMICAL PROBLEMS 2019 no.…”

Section: Resultsmentioning

confidence: 99%

“…In our earlier works we suggested to use highly heat-resisting (up to 1350°C) FeCrAl alloy materials in a form of meshes and foams as a heat-conducting structural carrier of the catalysts for the reactions of complete and partial oxidation of gaseous hydrocarbons, and steam and autothermal reforming of diesel fuel [12][13][14][15][16]. The applied approach appeared universal and technologically advanced.…”

Section: Chemical Problems 2019 No 2 (17)mentioning

confidence: 99%

“…FeCrAl alloy wire mesh (grid cell size is 0.5 mm, wire diameter is 0.25 mm) purchased from -NPO Souznichrom‖ Inc. (Russia) was used as a substrate for catalyst deposition. The main steps for the catalytic module preparation procedure were previously described in detail [16].…”

Section: Experimental Part 21 Catalyst Preparation and Characterizationmentioning

confidence: 99%

“…The active component (Ni, Cl and CeO 2 ) loading in the structured catalyst (further denoted as Ni/Ce-Al/FCA) was ~11 wt% with respect to FCA (See Table 1). Previously, the as-prepared and used Rh supported over composite ceriazirconiaalumina FeCrAl alloy wire mesh catalysts (synthesized by the same preparation protocol as described above for the Rh/CZ-Al/FCA honeycomb catalytic module) [13,15,16] and Ni/Ce-Al/FCA sandwich-type catalytic modules [22,23] were characterized by several techniques. It was shown by transmission electron microscopy (TEM) study that the rhodium in the catalysts uniformly distributed over the ceria -zirconia surface.…”

Section: Experimental Part 21 Catalyst Preparation and Characterizationmentioning

confidence: 99%

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Catalysts and Catalytic Processes for the Production of Hydrogen-Rich Gas for Fuel Cell Feeding

Бадмаев¹,

Belyaev²,

Konishcheva³

et al. 2019

Chemical Problems

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Section: Resultsmentioning

confidence: 99%

Section: Chemical Problems 2019 No 2 (17)mentioning

confidence: 99%

Section: Experimental Part 21 Catalyst Preparation and Characterizationmentioning

confidence: 99%

Section: Experimental Part 21 Catalyst Preparation and Characterizationmentioning

confidence: 99%

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Catalysts and Catalytic Processes for the Production of Hydrogen-Rich Gas for Fuel Cell Feeding

Бадмаев¹,

Belyaev²,

Konishcheva³

et al. 2019

Chemical Problems

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“…In this case, it is preferable to use an exothermic partial oxidation process: 2CH 4 + O 2 → 2CO + 4H 2 (∆ r H 0 973K = −46.4 kJ/mol) However, the overall efficiency of the power plant is significantly reduced. In addition, when using LPG (which can be compactly stored in a liquid state in cylinders at low pressure) during partial oxidation, the conversion temperature usually exceeds 900 • C, which leads to accelerated degradation of the catalyst [8].…”

Section: Introductionmentioning

confidence: 99%

Coupling Pre-Reforming and Partial Oxidation for LPG Conversion to Syngas

et al. 2020

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Coupling of the pre-reforming and partial oxidation was considered for the conversion of liquefied petroleum gas to syngas for the feeding applications of solid oxide fuel cells. Compared with conventional two step steam reforming, it allows the amount of water required for the process, and therefore the energy needed for water evaporation, to be lowered; substitution of high-potential heat by lower ones; and substitution of expensive tubular steam reforming reactors by adiabatic ones. The supposed process is more productive due to the high reaction rate of partial oxidation. The obtained syngas contains only ca. 10 vol.% H2O and ca. 50 vol.% of H2 + CO, which is attractive for the feeding application of solid oxide fuel cells. Compared with direct partial oxidation of liquefied petroleum gas, the suggested scheme is more energy efficient and overcomes problems with coke formation and catalyst overheating. The proof-of-concept experiments were carried out. The granular Ni-Cr2O3-Al2O3 catalyst was shown to be effective for propane pre-reforming at 350–400 °C, H2O:C molar ratio of 1.0, and flow rate of 12,000 h−1. The composite Rh/Ce0.75Zr0.25O2-δ–ƞ-Al2O3/FeCrAl catalyst was shown to be active and stable under conditions of partial oxidation of methane-rich syngas after pre-reforming and provided a syngas (H2 + CO) productivity of 28 m3·Lcat−1·h−1 (standard temperature and pressure).

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Study on highly efficient high‐temperature steam harvesting using waste energy

Kim

Cho

et al. 2021

Intl J of Energy Research

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In this study, a high-temperature steam generator (HTSG) of cyclone cylindrical type has been developed for energy harvesting applications. Solid refuse fuel (SRF) is considered the thermal energy source. The operating conditions are steam temperature of 773 K, steam pressure of 0.3 to 0.6 MPa, and mass flow rate of 10 to 35 kg/h. The pressure drop of steam in the HTSG is analyzed through numerical methods, which can control the outlet pressure of steam for hydrogen stack application based on the experimental results. The maximum heat transfer efficiency of the HTSG system is 66% at 0.3 MP and 35 kg/ h, which can generate 306 tons per year of high-temperature steam. Moreover, the produced steam can be converted to 15.3 tons of hydrogen. The HTSG system can harvest 767 MWh of energy per year, and it is expected to significantly reduce energy consumption while minimizing the environmental impact.

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Composite Rh/Zr0.25Ce0.75O2-δ-ƞ-Al2O3/Fecralloy wire mesh honeycomb module for natural gas, LPG and diesel catalytic conversion to syngas

Cited by 30 publications

References 34 publications

Catalysts and Catalytic Processes for the Production of Hydrogen-Rich Gas for Fuel Cell Feeding

Catalysts and Catalytic Processes for the Production of Hydrogen-Rich Gas for Fuel Cell Feeding

Coupling Pre-Reforming and Partial Oxidation for LPG Conversion to Syngas

Study on highly efficient high‐temperature steam harvesting using waste energy

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