A new kinetic model for temperature programed thermogravimetry and its applications to the gasification of coal chars with steam and carbon dioxide.

スポンサーリンク

概要

• 論文の詳細を見る

• For the kinetic analysis of non-catalytic solid-gas reaction by thermogravimetry, the rate equation f=1- exp[- a(T- c)b], (f= fractional conversion of reactive solid, T=temperature, a, b, c = constants) was proposed to follow precisely the experimental TGA curve (f vs. T) obtained by a temperature-programed run at heating-up speed φ = dT/dθ (θ = reaction time). Assuming the reaction to be first-order with respect to weight of reactive solid, a method based on data-fitting process was derived to determine the rate constant kφ and kinetic parameters (activation energy E and preexponential factor A) of the Arrhenius-type rate constant, from only a single temperature-programed run. The proposed method was applied to experimental data on the gasification of coal chars with steam and carbon dioxide at temperatures up to 1000°C, and was confirmed to be valid and useful for the quantitative evaluation of kinetic parameters and the comparison of gasification reactivity of coal char.

• 公益社団法人 化学工学会の論文

著者

• Sakata Yusaku

  Department Of Applied Chemistry Faculty Of Engineering Okayama University

• Shimada Masaki

  Department Of Electrical And Electronic Engineering Faculty Of Engineering Kanazawa University

• Kasaoka Shigeaki

  Department Of Applied Chemistry Okayama University

• Matsutomi Tohru

  Department Of Applied Chemistry Okayama University

• MATSUTOMI TOHRU

  Department of Synthetic Chemistry, School of Engineering, Okayama University

関連論文

• おがくずを原料とする銅-炭素複合電極の電気二重層キャパシタ特性
• Selective Catalytic Dechlorination of Chloro Alkanes over Iron-based Catalysts
• Catalytic Degradation of Polypropylene into Liquid Hydrocarbons Using Silica-Alumina Catalyst
• Relation between Electron-Spin-Resonance and Constant-Photocurrent-Method Defect Densities in Hydrogenated Amorphous Silicon
• Light-Intensity Dependence of Photocreated Defects in Hydrogenated Amorphous Silicon-Nitrogen Alloy Films
• Co-processing of DVDs and CDs with vegetable cooking oil by thermal degradation
• Individual and simultaneous degradation of brominated high impact polystyrene and brominated acrylonitrile-butadiene-styrene and removal of heteroelements (Br, N, and O) from degradation oil by multiphase catalytic systems
• Development of a catalytic dehalogenation (Cl, Br) process for municipal waste plastic-derived oil
• Improvement in Adsorption Capacity of Nitrogen over X-type Zeolites by n-Hexane Plasma Processing and Heat Treatment
• GASIFICATION REACTIVITY OF COALS TREATED WITH SULFURIC ACID
• A new kinetic model for temperature programed thermogravimetry and its applications to the gasification of coal chars with steam and carbon dioxide.
• Light-Intensity Dependence of Photocreated Defects in Hydrogenated Amorphous Silicon–Nitrogen Alloy Films

もっと見る 閉じる

スポンサーリンク