Nagoya University · Engineering
Koyo Norinaga 교수의 연구실은 고온에서의 탄화수소 열분해 반응 메커니즘과 피로리틱 탄소 증착 과정을 정밀하게 모델링하고, 이와 관련된 반응 동역학 및 다상계 반응 시스템의 거동을 연구합니다. 주로 고온 플러그 플로우 반응기와 다양한 분석 기법(가스크로마토그래피, DSC, NMR 등)을 활용해 반응 생성물의 정량 분석과 수분의 상전이 특성(고체화 온도, 비결빙 수분 등)을 규명합니다. 특히, 석탄 내 수분의 상태 분류 및 다공구조와의 상관관계 분석을 통해 자료의 기초 과학적 이해를 심화하고 있습니다.
Figures are computed from collected data and may differ slightly.
The chemical kinetics of the pyrolysis of the hydrocarbons ethylene, acetylene, and propylene are modeled in detail under conditions relevant to the chemical vapor deposition of pyrolytic carbon. A mechanism that consisted of 227 species and 827 reactions (most of which are reversible) is developed and computed using a software package designed for computing time-dependent homogeneous reaction systems. Experimental results used for model validation are obtained using a vertical flow reactor at 9
Water sorbed in eight coals of different ranks was analyzed by differential scanning calorimetry (DSC) over a temperature range from 123 to 293 K. On the basis of its congelation characteristics, the water was classified into three types: free water that is identical with bulk water, bound water that freezes at a lower temperature than free water, and nonfreezable water that never freezes in the present temperature range. The contents of the free and bound waters were experimentally determined f
Abstract This study examines the predictive capability of our recently proposed reaction mechanism (Norinaga and Deutschmann, Ind Eng Chem Res 2007, 46, 3547) for hydrocarbon pyrolysis at varying temperature. The conventional flow reactor experiments were conducted at 8 kPa, over the temperature range 1073–1373 K, using ethylene, acetylene, and propylene as reactants to validate the mechanism. More than 40 compounds were identified and quantitatively analyzed by on‐ and off‐line gas chromatograp
The effect of the extent of predrying on the porous structure of water-swollen coal was examined. As-received Yallourn (YL), Beulah Zap (BZ), and Illinois #6 (IL) coals were used as the samples. They were predried at 303 K to different extents. Upon predrying, the coal samples released water in the following order: free water identical to bulk water, bound water that froze at around 226 K, and finally, nonfreezable water that never froze even at 123 K. Predried samples were swollen in water at 3
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTMeasurement of Self-Diffusion Coefficient of Asphaltene in Pyridine by Pulsed Field Gradient Spin−Echo 1H NMRKoyo Norinaga, Verina J. Wargardalam, Susumu Takasugi, Masashi Iino, and Shingo MatsukawaView Author Information Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira, Aoba-ku, Sendai 980-8577, Japan, and Laboratory of Marine Biochemistry, Tokyo University of Fisheries, Konan, Minato-ku, Tokyo 108-8477
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