Enhancement of acetylene and ethylene yields in partially decoupled oxidation of ethane by changing the composition of heat carrier  

作　　者：Tianpeng LiZhou Jiajia Luo Tiefeng Wang 

机构地区：[1]Beijing Key Laboratory of Green Reaction Engineering and Technology,Department of Chemical Engineering,Tsinghua University,Beijing 100084,China

出　　处：《Chinese Journal of Chemical Engineering》2022年第7期71-78,共8页中国化学工程学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(21276135);by Project of Chinese Ministry of Education(113004A).

摘　　要：In our previous work,a partially decoupled process(PDP)was proposed for efficient conversion of ethane to increase the ethylene yield and a new structural reactor called forward-impinging-back reactor(FIB)was proposed for scale-up.In this work,the influence of changing the composition and temperature of the heat carrier was investigated by simulations with detailed chemistry to further increase of the C_(2)(C_(2)H_(2)+C_(2)H_(4))yield in the PDP of ethane.At ideal mixing conditions,the C_(2) yield is 75.3%without steam addition and it is 82.9%at steam addition ratio of β=1.4.In comparison,the C_(2) yield in an FIB reactor is 62.4%without steam addition and it increases to 78.5%with steam addition(β=1.4).The requirement of high mixing efficiency is diminished by steam addition,which is favorable for reactor scale-up.

关 键 词：Partially decoupled process(PDP) ETHANE Computational fluid dynamics(CFD) Steam addition 

分 类 号：TQ221.211[化学工程—有机化工] TQ221.242