On direct internal methane steam reforming kinetics in operating solid oxide fuel cells with nickel-ceria anodes

Thattai, A. Thallam; Biert, Lindert van; Aravind, P.V.

doi:10.1016/j.jpowsour.2017.09.082

Cited by 35 publications

(9 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The bare Ni substrate shows a relatively high E A value of 113.25 kJ mol −1 , whereas the Ni NP–SDC CELD substrate has a significantly smaller E A value, 35.75 kJ mol −1 . This E A value is lower than the E A value of the typical type of Ni–ceria composite (63–88 kJ mol −1 ) 43,44 and it is similar to the E A value of Ni NPs–ceria composite for methane reforming reaction (49 kJ mol −1 ). 45 This result not only suggests that the catalytic CH 4 conversion mainly occurs throughout the over-coating layers but also indicates that the coating layers can significantly promote CH 4 steam reforming to alter the anode gas composition to a H 2 -rich atmosphere.…”

Section: Resultssupporting

confidence: 51%

Electrochemically plated nickel-decorated ceria nanostructures for direct hydrocarbon solid oxide fuel cell electrodes

et al. 2022

View full text Add to dashboard Cite

show abstract

Section: Resultssupporting

confidence: 51%

Electrochemically plated nickel-decorated ceria nanostructures for direct hydrocarbon solid oxide fuel cell electrodes

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The value of S/C ratio depends on the composition of the NG mixture supplied to the system. Typical values for the S/C ratio are in the range of 1.5 to 2.5 , . For the current study an S/C ratio of 2.2 is used.…”

Section: Plant Description Steady State Modeling and Selected Layoutmentioning

confidence: 99%

Design of a Pilot SOFC System for the Combined Production of Hydrogen and Electricity under Refueling Station Requirements

et al. 2019

View full text Add to dashboard Cite

The objective of the current work is to support the design of a pilot hydrogen and electricity producing plant that uses natural gas (or biomethane) as raw material, as a transition option towards a 100% renewable transportation system. The plant, with a solid oxide fuel cell (SOFC) as principal technology, is intended to be the main unit of an electric vehicle station. The refueling station has to work at different operation periods characterized by the hydrogen demand and the electricity needed for supply and self‐consumption. The same set of heat exchangers has to satisfy the heating and cooling needs of the different operation periods. In order to optimize the operating variables of the pilot plant and to provide the best heat exchanger network, the applied methodology follows a systematic procedure for multi‐objective, i.e. maximum plant efficiency and minimum number of heat exchanger matches, and multi‐period optimization. The solving strategy combines process flow modeling in steady state, superstructure‐based mathematical programming and the use of an evolutionary‐based algorithm for optimization. The results show that the plant can reach a daily weighted efficiency exceeding 60%, up to 80% when considering heat utilization.

show abstract

“…The rate on rhodium surface showed a maximum at a methane pressure ≈ 0.75-bar, due to blocking of all active sites by adsorbed CH species. Thallam Thattai et al reported an experimental study on methane steam reforming global kinetics, for single operating SOFCs with Ni/gadolinium doped ceria anodes, at a low steam to carbon ratio and moderate current densities [60]. Power low and Langmuir-Hishelwood rate expressions were compared and the limitation in using them for complete cermet anodes were identified.…”

Section: Kinetics and Simulationsmentioning

confidence: 99%

A Short Review on Ni Based Catalysts and Related Engineering Issues for Methane Steam Reforming

2020

View full text Add to dashboard Cite

Hydrogen is an important raw material in chemical industries, and the steam reforming of light hydrocarbons (such as methane) is the most used process for its production. In this process, the use of a catalyst is mandatory and, if compared to precious metal-based catalysts, Ni-based catalysts assure an acceptable high activity and a lower cost. The aim of a distributed hydrogen production, for example, through an on-site type hydrogen station, is only reachable if a novel reforming system is developed, with some unique properties that are not present in the large-scale reforming system. These properties include, among the others, (i) daily startup and shutdown (DSS) operation ability, (ii) rapid response to load fluctuation, (iii) compactness of device, and (iv) excellent thermal exchange. In this sense, the catalyst has an important role. There is vast amount of information in the literature regarding the performance of catalysts in methane steam reforming. In this short review, an overview on the most recent advances in Ni based catalysts for methane steam reforming is given, also regarding the use of innovative structured catalysts.

show abstract

On direct internal methane steam reforming kinetics in operating solid oxide fuel cells with nickel-ceria anodes

Cited by 35 publications

References 50 publications

Electrochemically plated nickel-decorated ceria nanostructures for direct hydrocarbon solid oxide fuel cell electrodes

Electrochemically plated nickel-decorated ceria nanostructures for direct hydrocarbon solid oxide fuel cell electrodes

Design of a Pilot SOFC System for the Combined Production of Hydrogen and Electricity under Refueling Station Requirements

A Short Review on Ni Based Catalysts and Related Engineering Issues for Methane Steam Reforming

Contact Info

Product

Resources

About