作者:Roy R. Baldwin、Raymond W. Walker、Robert W. Walker
DOI:10.1039/f19807600825
日期:——
The decomposition of 2,2,3-trimethylbutane in the presence of O2 in KCl-coated vessels has been studied at 480 and 500 °C over the pressure range 60–500 Torr. At low alkane pressures, where the chain contribution is small, the results are consistent with a simple mechanism comprising reactions (10), (11), (2) and (3). (CH3)3CCH(CH3)2→ t-C4H9+i-C3H7(10), i-C3H7+O2→ C3H6+HO2(11), t-C4H9+O2→ i-C4H8+HO2(2)
在480和500°C和60–500 Torr的压力范围内,研究了在O 2存在下KCl涂层容器中2,2,3-三甲基丁烷的分解。在低烷烃压力下,链的贡献较小,结果与包含反应(10),(11),(2)和(3)的简单机理相符。(CH 3)3 CCH(CH 3)2 →tC 4 H 9 + iC 3 H 7(10),iC 3 H 7 + O 2 →C 3 H 6 + HO 2(11),tC 4 H 9 + O 2个→IC 4 ħ 8 + HO 2(2),HO 2 [省略了图形]½H 2 O +¾O 2(3),从第i-丁烯产率的测量,精确速率常数可以被用于反应而得到(10),其当与Tsang的结果结合时,在480–925°C的温度范围内,给出log 10(A 10 / s –1)= 16.46±0.12和E 10 = 305.0±1.5 kJ mol –1。在讨论了反应的热化学性质(10)和k –10的值之后,Δf