DICP OpenIR
学科主题物理化学
CO2 utilization as an oxidant in the dehydrogenation of ethylbenzene to styrene over iron oxide-based catalysts
Chen GL(陈桂丽); Ji M(纪敏); Wang JH(王军虎); Wang XK(王新葵); Zhang T(张涛)
会议名称7th Asia Pacific Congress on Sustainable Energy & Environmental Technologies
会议日期2009-10-15
2009-10-15
会议地点中国
其他题名铁催化剂上乙苯脱氢合成苯乙烯反应中二氧化碳作为氧化剂的利用
页码37/1
部门归属十五室
主办者中国石油大学
英文摘要In view of the problem of global warming, the utilization of CO2 has aroused extensive concern. Recently, the catalytic process of ethylbenzene dehydrogenation (EBD) with CO2 to styrene has been emerging, since CO2 offer several advantages such as acceleration of the reaction rate, enhancement in product selectivity, alleviation of thermodynamic equilibrium limitations, suppression of total oxidation, and prolonging of catalyst life. In the present paper, Fe active species in the catalyst for EBD with CO2 were studied. Three catalysts of Fe2O3-MgO/-Al2O3, Fe2O3/MgAl2O4 and MgFe0.1Al1.9O4 with the same Mg/Fe/Al molar ratio were prepared impregnation and sol-gel methods. The catalyst properties were characterized using techniques such as N2 adsorption/desorption (BET), X-ray diffraction (XRD), thermogravimetric (TG), energy dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FT-IR), 57Fe Mössbauer spectroscopy (MS), temperature programmed reduction (TPR), and temperature-programmed desorption of NH3 and CO2 (NH3-TPD and CO2-TPD). It was found that Fe3+ species incorporated in spinel framework entirely, which can resist sintering and reduction effectively, is responsible for high catalytic activity and stability of MgFe0.1Al1.9O4 under reaction conditions. Moreover, the weak surface acidity of MgFe0.1Al1.9O4 is beneficial to prevent the carbon formation. This exploratory research might motivate us to explore the possibility of CO2 utilization on different catalytic processes.
语种中文
文献类型会议论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/113584
专题中国科学院大连化学物理研究所
通讯作者Ji M(纪敏); Wang JH(王军虎)
推荐引用方式
GB/T 7714
Chen GL,Ji M,Wang JH,et al. CO2 utilization as an oxidant in the dehydrogenation of ethylbenzene to styrene over iron oxide-based catalysts[C],2009:37/1.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[陈桂丽]的文章
[纪敏]的文章
[王军虎]的文章
百度学术
百度学术中相似的文章
[陈桂丽]的文章
[纪敏]的文章
[王军虎]的文章
必应学术
必应学术中相似的文章
[陈桂丽]的文章
[纪敏]的文章
[王军虎]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。