CO_2 ガスによる黒鉛およびコークスのガス化反応におよぼすりん蒸気の影響

概要

論文の詳細を見る
In order to find the effect of phosphorus vapor on the gasification of graphite and coke in carbon dioxide, the gasification rates of electrode graphite and metallurgical coke in CO_2-CO-Ar gas mixture were measured in the temperature range of 900-1000℃ at atmospheric pressure. The rate of gasification decreased with increasing the partial pressure of phosphorus. Phosphorus was found to have strong retardation effect. The experimental result were interpreted by use of Langmuir-Hinshelwood type reaction mechanism (R=k_1P_<CO_2>/(1+k_1/k_2P_<CO_2>+K_3P_<CO>+K_4P_P))and the rate constants k_1, k_2 and the adsorption coefficients K_3, K_4 were obtained as follows. For electrode graphite ; k_1=exp (17.78-65851.2/RT) (mol/min・atm・g-c), k_2=exp (9.585-24578/RT) (mol/min・g-c), K_3=exp (-13.74+38, 108.3/RT) (atm^<-1>), and K_4=exp (-8.53+43235.6/RT) (atm^<-1>), and for metallurgical coke ; k_1=exp (20.49-68350/RT) (mol/min・atm・g-c), k_2=exp (5.478-14405/RT) (mol/min・g-c), K_3=exp (-8.30+23330/RT) (atm^<-1>), and K_4=exp (-3.92+31704.7/RT) (atm^<-1>). Activation energies for k_1 with electrode graphite and metallurgical coke are obtained 65.85kcal/mol and 68.35kcal/mol respectively.
社団法人日本鉄鋼協会の論文
1984-08-01