蒸汽重整
中空纤维膜
化学工程
材料科学
膜反应器
钙钛矿(结构)
催化作用
膜
纤维
甲苯
tar(计算)
甲醇
核化学
化学
有机化学
复合材料
制氢
程序设计语言
工程类
生物化学
计算机科学
作者
Zhigang Wang,Usman Oemar,Ming Li Ang,Sibudjing Kawi
标识
DOI:10.1016/j.memsci.2016.03.014
摘要
Ceramic BaBi0.05Co0.8Nb0.15O3−δ (BBCN) perovskite hollow fiber membrane was successfully integrated with Ni based perovskite structure catalyst La0.8Sr0.2Ni0.8Fe0.2O3−δ (LSNF) to form a catalytic hollow fiber membrane reactor for oxidative steam reforming of toluene reaction. The results show that this membrane reactor achieves commendable performance. In detail, at low steam to carbon ratio (S/C=1), toluene conversion in various temperature 650–750 °C increased compared with catalyst only in typical steam reforming of toluene reaction. The enhancement is more obvious at higher temperature. In addition, this membrane reactor also shows high selectivity, obtaining H2 and CO as dominant products with H2/CO ratio of 2–3. Stability test was carried out at 700 °C for 50 h, and further characterized by TGA, SEM/EDX, XRD, XPS, TPO/TPR and FTIR techniques. The results show that membrane reactor has a good stability with around 60% conversion and lower carbon deposition. After stability test, BBCN hollow fiber membrane still maintained the perovskite phase structure, whereas the morphology and element state did not change too much. Hence, catalytic BBCN hollow fiber membrane reactor for oxidative steam reforming of tar displays great potential for future application.
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