PFR中的气相反应过程计算 在PFR中于650℃等温条件下进行丁烯氧化脱氢反应生产丁二烯: C 4 H 8 →C 4 H 6 +H 2 (A) (P) (S) 反应速率方程 (-r A )=kp A kmol/(m 3 ·h) 原料气为丁烯和水蒸气的混合物,其摩尔比为1。操作压力为0.10133MPa,在650℃时, k=106.48 kmol/(h·m 3 ·MPa) 若要求丁烯转化率为0.9,空时应为多少?
【单选题】MacHeath Inc. bought 60% of the outstanding common stock of Nomes Inc. in an acquisition that resulted in the recognition of goodwill. Nomes owned a piece of land that cost $250,000 but was worth $600...