Author
Sylvain Rodat
Other affiliations: Centre national de la recherche scientifique
Bio: Sylvain Rodat is an academic researcher from University of Grenoble. The author has contributed to research in topics: Syngas & Solar energy. The author has an hindex of 20, co-authored 50 publications receiving 968 citations. Previous affiliations of Sylvain Rodat include Centre national de la recherche scientifique.
Topics: Syngas, Solar energy, Methane, Biomass, Hydrogen
Papers
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TL;DR: In this paper, a kinetic simulation of the methane decomposition in a tubular solar chemical reactor prototype is presented, where each tubular reaction zone is modelled by three plug-flow reactors in series representing the pre-heating, isothermal, and cooling zones of the reactor.
99 citations
TL;DR: In this paper, a pilot-scale solar reactor was designed and operated at the 1 MW solar furnace of CNRS for H 2 and carbon black production from methane splitting, which constitutes the final objective of the SOLHYCARB EC project.
90 citations
TL;DR: In this paper, a solar thermal decomposition of natural gas for the co-production of hydrogen, as well as Carbon Black as a high-value nano-material, with the bonus of zero CO 2 emissions is addressed.
79 citations
TL;DR: In this paper, a solar thermal decomposition of natural gas for the co-production of hydrogen and carbon black (CB) as a high-value nano-material with the bonus of zero CO 2 emission is addressed.
74 citations
TL;DR: In this article, the solar-driven chemical looping methane reforming using the non-stoichiometric ceria redox cycle was experimentally investigated for both syngas production and isothermal H2O/CO2 splitting using a directly irradiated volumetric solar reactor in the temperature range of 950-1050°C.
71 citations
Cited by
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TL;DR: In this paper, a review of the development of metal or carbonaceous catalysts for enhanced methane conversion and on the improvement of long-term catalyst stability is presented, where the roles played by various parameters, such as temperature and flow rate, on the rate of hydrogen production and the characteristics of the carbon produced.
730 citations
TL;DR: In this paper, a comprehensive review has been carried out in order to show the effects of the main process conditions (heating rate, temperature, pressure, carrier gas flow rate and type, volatiles residence time and pyrolysis time) on physicochemical properties and distributions of the resulting products (gas, liquid and solid fractions).
Abstract: This review deals with the state-of-the-art of waste tyre pyrolysis for the first time in literature. Pyrolysis has been addressed as an attractive thermochemical process to tackle the waste tyre disposal problem while allowing energy recovery. Pyrolysis enables the separation of carbon black from tyres and the volatile matter released (condensable and non-condensable compounds) has the potential of renewable energy recovery given the significant proportion of natural rubber present in the tyre. Given this waste-to-energy pathway, a comprehensive review has been carried out in order to show the effects of the main process conditions (heating rate, temperature, pressure, carrier gas flow rate and type, volatiles residence time and pyrolysis time) on the physicochemical properties and distributions of the resulting products (gas, liquid and solid fractions). It has also been reviewed the influence of the size and composition of the feedstock. All reported results have been framed regarding the type of reactor as well as the experimental conditions used to avoid contradictions among the large number of publications on the subject. It is shown that the occurrence of secondary reactions is very sensitive to the interaction of the aforementioned variables. Also, the main properties of the pyrolytic products are pointed out. The liquid and gaseous fractions obtained are a valuable fuel source; while the solid fraction (char) has the recovery potential of low- grade carbon black or as carbon adsorbent after applying an activation step. Special attention has been given to the liquid fraction, highlighting its properties as alternative fuel in compression ignition engines.
596 citations
01 Jan 2011
TL;DR: The method is suited to online forecasting in many applications and in this paper it is used to predict hourly values of solar power for horizons of up to 36 h, where the results indicate that for forecasts up to 2 h ahead the most important input is the available observations ofSolar power, while for longer horizons NWPs are theMost important input.
Abstract: This paper describes a new approach to online forecasting of power production from PV systems. The method is suited to online forecasting in many applications and in this paper it is used to predict hourly values of solar power for horizons of up to 36 h. The data used is 15-min observations of solar power from 21 PV systems located on rooftops in a small village in Denmark. The suggested method is a two-stage method where first a statistical normalization of the solar power is obtained using a clear sky model. The clear sky model is found using statistical smoothing techniques. Then forecasts of the normalized solar power are calculated using adaptive linear time series models. Both autoregressive (AR) and AR with exogenous input (ARX) models are evaluated, where the latter takes numerical weather predictions (NWPs) as input. The results indicate that for forecasts up to 2 h ahead the most important input is the available observations of solar power, while for longer horizons NWPs are the most important input. A root mean square error improvement of around 35% is achieved by the ARX model compared to a proposed reference model.
585 citations
TL;DR: In this article, the authors discuss the catalysts that can be used for methane cracking, and their deactivation and regeneration are discussed, including carbon filament formation, the reaction mechanisms, and the models available in the literature for predicting reaction rates.
325 citations
TL;DR: In this paper, a review deals with the different reactor configurations, operating conditions and catalysts used in each process and compares the different alternatives in terms of H2 production, with emphasis placing on the advantages of the two-step strategy.
308 citations