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Coupling of N2O decomposition with CO2 reforming of CH4 in novel cobalt-free BaFe0.9Zr0.05Al0.05O3-delta oxygen transport membrane reactor
Liang, Wenyuan1,2; Megarajan, Suresh Kumar1; Liang, Fangyi1; Zhang, Yan1; He, Guanghu1; Liu, Zhenzhen1,2; Jiang, Heqing1
2016-12-01
发表期刊CHEMICAL ENGINEERING JOURNAL
卷号305页码:176-181
摘要Coupling of N2O decomposition with CO2 reforming of CH4 was demonstrated in cobalt-free perovskite BaFe0.9Zr0.05Al0.05O3-delta (BFZ-Al) membrane reactor. Perovskite oxide BFZ-Al was synthesized by EDTA-citric acid complexing method. The stability of BFZ-Al and BaFexZryCo1-x-yO3-delta (BFZ-Co) was studied under hydrogen atmosphere. X-ray diffraction analysis indicates that BFZ-Al shows a better stability compared to cobalt-based perovskite BFZ-Co. The oxygen permeation rate of BFZ-Al dense membrane was investigated from 810 to 960 degrees C, and the oxygen permeation rate reached 0.85 ml min(-1) cm(-2) at 960 degrees C. N2O decomposition in BFZ-Al membrane reactor was studied under three different sweep gas atmospheres including He, He/CH4, and He/CH4/CO2. Comparatively, a higher N2O conversion was achieved by using the sweep gas mixture He/CH4/CO2 than only using He or He/CH4. Therefore, the simultaneous N2O decomposition and syngas production via dry reforming was studied in BFZ-Al membrane reactor by using N2O and He/CH4/CO2 as feed gas and sweep gas, respectively. At 900 degrees C, almost complete N2O conversion was achieved owing to the efficient in situ removal of the inhibitor oxygen through BFZ-Al membrane. CH4 conversion was found to be around 97% with 94% CO selectivity at 900 degrees C, and no obvious decline in the activity and selectivity was observed even after 100 h of the operation. (C) 2015 Elsevier B.V. All rights reserved.
文章类型Article
关键词N2o Decomposition Co2 Reforming Oxygen Transport Membrane Cobalt-free Perovskite Membrane Reactor
WOS标题词Science & Technology ; Technology
DOI10.1016/j.cej.2015.10.067
关键词[WOS]NITROUS-OXIDE ; CATALYTIC DECOMPOSITION ; METHANE ; HYDROGEN ; GAS ; PEROVSKITES ; PERMEATION ; SEPARATION ; REMOVAL ; ENERGY
收录类别SCI
语种英语
WOS研究方向Engineering
项目资助者National Natural Science Foundation of China(21471156 ; Shandong Provincial Natural Science Foundation, China(BS2014NJ003 ; Applied Basic Research Programs for Young Scientists of Qingdao(14-2-4-82-jch) ; 21450110410) ; BS2014NJ019)
WOS类目Engineering, Environmental ; Engineering, Chemical
WOS记录号WOS:000385599500020
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/9065
专题膜分离与催化研究组
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biobased Mat, Qingdao 266101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Liang, Wenyuan,Megarajan, Suresh Kumar,Liang, Fangyi,et al. Coupling of N2O decomposition with CO2 reforming of CH4 in novel cobalt-free BaFe0.9Zr0.05Al0.05O3-delta oxygen transport membrane reactor[J]. CHEMICAL ENGINEERING JOURNAL,2016,305:176-181.
APA Liang, Wenyuan.,Megarajan, Suresh Kumar.,Liang, Fangyi.,Zhang, Yan.,He, Guanghu.,...&Jiang, Heqing.(2016).Coupling of N2O decomposition with CO2 reforming of CH4 in novel cobalt-free BaFe0.9Zr0.05Al0.05O3-delta oxygen transport membrane reactor.CHEMICAL ENGINEERING JOURNAL,305,176-181.
MLA Liang, Wenyuan,et al."Coupling of N2O decomposition with CO2 reforming of CH4 in novel cobalt-free BaFe0.9Zr0.05Al0.05O3-delta oxygen transport membrane reactor".CHEMICAL ENGINEERING JOURNAL 305(2016):176-181.
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