摘要
在建立催化剂的小型流化床热模试验装置的基础上，考察了原料气配比及反应温度对主、副反应效果的影响。结果表明，提高原料气中Ｃ＿２Ｈ＿４和Ｏ＿２的配比均能提高反应的ＨＣｌ转化率。而增加原料气中ＨＣｌ的配比能有效地抑制乙烯的燃烧副反应；反应温度的升高也能促进ＨＣｌ转化率升高。反应过程动力学的计算与分析表明，本反应体系在ＨＣｌ转化率达到较高（＞９０％）时，将转为传质控制；同时还验证了前文Ⅰ中所得的本征动力学速率方程是可靠的。
The effects of feed ratio and temperature on the main and side reactions were investigated in a hot model test,using a 28mm fluidized bed. It is foundthat increase of C_2H_4and O_2 in the feed will increase the conversion of HCl, and the effect of C_2H_4 is mostremarkable. Meanwhile, the combustion of C_2H_4 will also be enhanced. On the contrary ,theincrease of HCl will inhibit the combustion process,The increase of temperature Will alsoincrease the conversion of HCl,especially when the conversion is not high.Combining the reaction kinetics and flow model of fluidized bed,the reaction processwas calculated and analyzed.It can be shown that when the conversion of HCl is higher than90%,the process becomes controllable by mass transfer rate,In addition,the reliability of the kinetic rate equation proposed in the previous paper(Ⅱ)was reconfirmed.
出处
《石油化工》
EI
CAS
CSCD
北大核心
1994年第11期701-705,共5页
Petrochemical Technology
关键词
乙烯
氧氯化
流化床
动力学
传质
ethylene oxychlorination,fluidized bed,hot model,process Kinetics, mass transfer control
