STABLE MIXED-CONDUCTING BILAYER MEMBRANES FOR DIRECT CONVERSION OF METHANE TO SYNGAS

机译：稳定的混合传导双层膜，用于甲烷直接转化为合成气

获取原文

获取原文并翻译 | 示例

页面导航

摘要
著录项
相似文献
相关主题

摘要

Results on the oxygen permeability and stability of perovskite-type La_(0.6)Sr_(0.4)Co_(0.8)Fe_(0.2)O_3 (LSCF) coated with (Sm_2O_3)_(0.1)(CeO_2)_(0.9) (SDC) are presented. Bilayer structures were formed by depositing a thin layer of SDC by pulsed laser deposition (PLD) on the reducing side of the membrane. Oxygen permeation fluxes measured with air on the feed side and He-Ch_4 mixtures on the sweep or reducing side are compared with non-coated results. With the introduction of CH_4 into the He sweep, LSCF samples exhibit very high oxygen flux values but degrade rapidly as the membrane decomposes to less conductive phases. In contrast, LSCF/SDC bilayer membranes under similar conditions show superior stability and increased oxygen flux over a period of greater than 50 h. During reaction runs with CH_4, a cyclic redox reaction with respect to ceria was observed and is believed to be due to oscillations in the Po_2 at the SDC-gas interface.

机译：（Sm_2O_3）_（0.1）（CeO_2）_（0.9）（SDC）包覆的钙钛矿型La_（0.6）Sr_（0.4）Co_（0.8）Fe_（0.2）O_3（LSCF）的透氧性和稳定性的结果被提出。通过在膜的还原面上通过脉冲激光沉积（PLD）沉积SDC薄层来形成双层结构。将进料侧用空气和the扫或还原侧用He-Ch_4混合物测得的氧气渗透通量与未镀膜的结果进行比较。将CH_4引入He扫描后，LSCF样品显示出非常高的氧通量值，但由于膜分解为导电性较低的相而迅速降解。相反，在相似条件下，LSCF / SDC双层膜在超过50小时的时间内显示出优异的稳定性并增加了氧气通量。在与CH_4进行反应的过程中，观察到相对于二氧化铈的循环氧化还原反应，并认为这是由于SDC-气体界面处Po_2的振荡。

著录项

来源
《Fourth International Symposium on Ionic and Mixed Conducting Ceramics, null》||p.306-318|共13页
会议地点
作者
Eric D. Wachsman; Terry L. Clites;
展开▼
作者单位

Department of Materials Science and Engineering University of Florida Gainesville, FL 32611;

展开▼
会议组织
原文格式 PDF
正文语种 eng
中图分类电工技术;
关键词

相似文献

外文文献
中文文献
专利

1. partial oxidation of methane to syngas in a mixed-conducting oxygen permeable membrane reactors [J] . DONG Hui, XIONG Guoxing, SHAO Zongping Chinese science bulletin . 2000,第3期

机译：混合传导透氧膜反应器中甲烷部分氧化为合成气
2. Performance of a mixed-conducting ceramic membrane reactor with high oxygen permeability for methane conversion [J] . Zongping Shao, Hui Dogn, Guoxing Xiong Journal of Membrane Science . 2001,第2期

机译：具有高氧气渗透率的混合导电陶瓷膜反应器的甲烷转化性能
3. Stable Performance of Ni Catalysts in the Dry Reforming of Methane at High Temperatures for the Efficient Conversion of CO2 into Syngas [J] . ChemCatChem . 2014,第1期

机译：Ni催化剂在高温下甲烷干燥重整中的稳定性能，以将CO2的有效转化为合成气
4. Stable mixed-conducting bilayer membranes for direct conversion of methane to syngas [C] . Eric D. Wachsman, Terry L. Clites International symposium on Ionic and Mixed Conducting Ceramics . 2002

机译：用于将甲烷的直接转化为合成气的稳定混合型双层膜
5. Dense mixed-conducting ceramic membrane reactor for oxidative coupling of methane. [D] . Zeng, Yongxian. 1998

机译：用于甲烷氧化偶合的致密混合导电陶瓷膜反应器。
6. Direct Conversion of Syngas to Light Olefins throughFischer–Tropsch Synthesis over Fe–Zr Catalysts Modifiedwith Sodium [O] . Zhunzhun Ma, Hongfang Ma, Haitao Zhang, 2021

机译：直接将合成气转化为轻烯烃Fischer-Tropsch合成Fe-Zr催化剂改性用钠
7. Development of mixed-conducting ceramic membranes for converting methane to syngas [O] . Balachandran, U., Maiya, P.S., Ma, B., 1997

机译：开发用于将甲烷转化为合成气的混合导电陶瓷膜
8. Development of mixed-conducting ceramic membranes for converting methane to syngas [R] . Balachandran, U., Maiya, P. S., Ma, B., 1997

机译：开发用于将甲烷转化为合成气的混合导电陶瓷膜

STABLE MIXED-CONDUCTING BILAYER MEMBRANES FOR DIRECT CONVERSION OF METHANE TO SYNGAS

摘要

著录项

相似文献

相关主题

期刊订阅