Author
Yasukatsu Tamai
Other affiliations: Kitami Institute of Technology, University of Tokyo
Bio: Yasukatsu Tamai is an academic researcher from Tohoku University. The author has contributed to research in topics: Catalysis & Coal. The author has an hindex of 20, co-authored 93 publications receiving 1647 citations. Previous affiliations of Yasukatsu Tamai include Kitami Institute of Technology & University of Tokyo.
Papers published on a yearly basis
Papers
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TL;DR: In this article, the effect of coal rank on the gasification rate of coal char was examined and it was concluded that the surface active sites and/or the amount of exchangeable Ca and Na control the reactivity of low-rank coal chars in H2O.
236 citations
TL;DR: In this article, the catalytic activities of transition-metal catalysts in methane formation from carbons were investigated at temperatures up to 1050 °C under atmospheric pressure of hydrogen, and it was shown that methane was produced in several stages and the temperature of maximal rate varied from one metal catalyst to another.
153 citations
95 citations
TL;DR: In this paper, nine transition metals in Group VIII were examined as catalysts for the carbon gasification with steam, carbon dioxide and hydrogen metal-doped carbons were heated up to 950°C at a constant rate of 200°C/hr in a flowing reactant gas.
94 citations
TL;DR: In this paper, a thermobalance de gazeification du lignite in a milieu H 2 ou H 2 O in presence of fer is investigated, and experimentale des facteurs influencant l'activite catalytique (forme chimique, concentration, presence d'autres metaux).
Abstract: Etude a l'aide d'une thermobalance de la gazeification du lignite en milieu H 2 ou H 2 O en presence de fer. Etude experimentale des facteurs influencant l'activite catalytique (forme chimique, concentration, presence d'autres metaux). Mecanisme de la reaction
93 citations
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TL;DR: In this paper, the increasing importance of carbon materials in catalytic processes is analyzed in terms of the most important characteristics of these materials when acting as catalysts or catalyst supports, such as surface area, porosity, chemical inertness and oxygen surface groups.
1,620 citations
TL;DR: A review of the information obtained by the author and his many co-workers from studies devoted to the formation of a fascinating material, filamentous carbon, is given in this article.
1,145 citations
TL;DR: Prediction of biochar stability was improved by a combination of volatile matter and H:C ratios corrected for inorganic C, and agronomic utility of biochars is not an absolute value, as it needs to meet local soil constraints.
816 citations
TL;DR: In this paper, a detailed analysis and adaptation of cutting parameters, cutting tools, machine tools and the production environment is mandatory to ensure an efficient process and successfully enable dry machining.
812 citations
TL;DR: In this paper, a correlation was developed to predict the influence of ash on volatile yield, initial decomposition temperature and rate of pyrolysis in wood and twelve other types of biomass.
762 citations