Asymmetric oxygen-permeable membrane synthesis and its utilization for methane oxidation

不对称透氧膜合成及其在甲烷氧化中的应用

• 批准号: 14205117
• 负责人: KIKUCHI Eiichi
• 金额: $ 33.11万
• 依托单位: Waseda University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14205117/
• 关键词: asymmetric membrane; perovskite; oxygen-permeable; methane; oxidation; synthesis gas; hydrogen production; steam reforming; 酸素分離膜; 混合伝導体; 膜反応器; 部分酸化; 天然ガス; 非対称膜; ペロブスカイト; 酸素透過膜; セラミック; 結晶性; 混合伝導性; SFC; スラリー

A disk-type Sm_<0.4>Ba_<0.6>Co_<0.2>Fe_<0.8>O_<3-δ> perovskite-type mixed-conducting membrane was applied to a membrane reactor for the partial oxidation of methane to syngas (CO + H_2). The reaction was carried out using Rh (1 wt%)/MgO catalyst by feeding CH_4 diluted with Ar.While CH_4 conversion increased and CO selectivity slightly decreased with increasing temperature, a high level of CH_4 conversion (90%) and a high selectivity to CO (98%) were observed at 1173 K. The oxygen flux was increased under the conditions for the catalytic partial oxidation of CH_4 compared with that measured when Ar was fed to the permeation side. We investigated the reaction pathways in the membrane reactor using different membrane reactor configurations and different kinds of gas. In the membrane reactor without the catalyst, the oxygen flux was not improved even when CH_4 was fed to the permeation side, whereas the oxygen flux was enhanced when CO or H_2 was fed. It is implied that the oxidation of CO and H_2 with the surface oxygen on the permeation side improves the oxygen flux through the membrane, and that CO_2 and H_2O react with CH_4 by reforming reactions to form syngas.

磁盘型SM_ <0.4> BA_ <0.6> CO_ <0.2> Fe_ <0.8> O_ <3-uduction> perovskite-type混合传导膜用于膜反应器，以部分氧化甲烷对甲烷的部分氧化（CO + H__2）。使用RH（1 wt％）/MGO催化剂通过喂食CH_4稀释的CH_4转化率提高，并且CO选择性随温度升高，CH_4转化率高（90％）（90％）和CO的高选择性（98％）在1173 k的情况下增加了氧气的情况下，则对CO（98％）的高选择性（98％）进行了镇定，而在1173 k的条件下，该反应是在1173 K的情况下，该反应略有下降。被喂入渗透面。我们使用不同的膜反应器构型和不同种类的气体研究了膜反应器中的反应途径。在没有催化剂的膜反应器中，即使将CH_4喂入渗透侧，也无法改善氧气通量，而当Co或H_2喂食时，氧气磁通量得到增强。暗示CO和H_2的氧化物与渗透侧的表面氧的氧化物改善了通过膜的氧通量，并且CO_2和H_2O与CH_4反应通过将反应形成形成Syngas。

项目成果

Effects of preparation method on oxygen permeation properties of SrFeCo_<0.5>Ox membrane

制备方法对SrFeCo_<0.5>Ox膜透氧性能的影响

• 发表时间: 2003
• 期刊: SEPARATION AND PURIFICATION TECHNOLOGY 32
• 作者: Ikeguchi;M;Yoshino;Y;Kanie K;Nomura;M;Kikuchi;E;Matsukata M
• 通讯作者: Matsukata M

M.Ikeguchi, Y.Sekine, E.Kikuchi, M.Matsukata: "A Novel Method for Preparation of SrFeCo0.5Ox Membranes on Porous Substrates for Oxygen Permeation"Trans.MRS-J. (in press). (2004)

M.Ikeguchi、Y.Sekine、E.Kikuchi、M.Matsukata：“一种在多孔基底上制备用于透氧的 SrFeCo0.5Ox 膜的新方法”Trans.MRS-J。

Catalytic activities and coking resistance of Ni/perovskites in steam reforming of methane

• DOI: 10.1016/j.apcata.2005.02.020
• 发表时间: 2005-05
• 期刊: Applied Catalysis A-general
• 影响因子: 5.5
• 作者: Kohei Urasaki;Yasushi Sekine;Shouji Kawabe;E. Kikuchi;M. Matsukata

M.Ikeguchi, E., Kikuchi: "Effects of Preparation Method on Oxygen Permeation Membrane"Separation and Purification. (in press). (2003)

M.Ikeguchi、E.、Kikuchi：“制备方法对透氧膜的影响”分离纯化。

Reaction and oxygen permeation studies in a Sm_<0.4>Ba_<0.6>Co_<0.2>Fe_<0.8>O_<3-δ> membrane reactor for the partial oxidation of methane to syngas

Sm_<0.4>Ba_<0.6>Co_<0.2>Fe_<0.8>O_<3-δ>膜反应器中甲烷部分氧化制合成气的反应和氧渗透研究

• 发表时间: 2005
• 期刊: Applied Catalysis A : General 290
• 作者: M.Ikeguchi;T.Mimura;Y.Sekine;E.Kikuchi;M.Matsukata
• 通讯作者: M.Matsukata