期刊
CHEMICAL ENGINEERING JOURNAL
卷 313, 期 -, 页码 207-216出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2016.12.074
关键词
Sorption enhanced glycerol steam reforming; Montmorillonite (MMT); Multifunctional catalyst; Insitu CO2 removal
资金
- Natural Science Foundation of China [51476022, 91434129]
- International Science and Technology Cooperation Program of China [2014DFA60600]
- Dalian [2015F11GH091]
- Fundamental Research Funds for the Central Universities [DUTI5JJ(G)02]
A series of multifunctional catalysts were derived from lamellar montmorillonite (MMT) via ultrasound assisted cation-exchange method. They were characterized by N-2 adsorption-desorption, X-ray diffraction (XRD), H-2 temperature-programmed reduction (H-2-TPR), H-2 pulse chemisorption, inductively coupled plasma optical emission spectrometry (ICP-OES), and transmission electron microscopy (TEM). The characterization results show that metal-support interaction (MSI) together with Ni and Ca dispersion interrelates with confinement effect of montmorillonite. The CO2 absorption capacity of CAT-5 (Ca/MMT molar ratio is 5) was still above 20.0% at the tenth cycle. The steam to glycerol molar ratio (S/G) and reaction temperature were investigated, and an S/G = 3 and a temperature of 600 degrees C were optimized. The hydrogen purity was significantly enhanced by the equilibrium shift of insitu CO2 removal at 600 degrees C. CAT-5 presents the best performance considering the synchronized absorption capacity and catalytic activity. Compared with CAT-M, CAT-5 shows higher stability in the multiple reactiondecarbonation cycles, which is due to the elevated sintering resistance of CaO derived from the confinement effect of lamellar structure. (C) 2016 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据