Performance of a mixed-conducting ceramic membrane reactor with high oxygen permeability for methane conversion

Permeation Flux of Organic Molecules through Silica-surfactant Nanochannels in a Porous Alumina Membrane

“…Membranes made of zeolites are used for catalysts, 5 pervaporation 6,7 and high temperature separation of hydrocarbon isomer vapors. 8 Ceramics such as alumina are hard and heat-resistant materials made with nonmetallic minerals, and ceramic membranes for gas separation 13 and catalysts 14 have been synthesized.…”

“…A variety of preparation and application methods of inorganic membranes have been reported. [4][5][6][7][8][9][10][11][12][13][14][15] Zeolites 4-8 and ceramics 9-14 are frequently used as sources of inorganic membranes. Zeolites are porous crystalline materials, which have a high surface area to volume ratio.…”

Catalytic partial oxidation of gasoline to syngas in a dense membrane reactor

“…This work is to study the hydrogen production in a membrane reactor by combining air separation by this dense membrane with the partial oxidation of heptane, which is a typical component of gasoline. pared as described in the literature [9], and the catalyst LiLaNiO/␥-Al 2 O 3 was prepared via the impregnation method according to the report [10], and its performance is shown from the references [11][12][13][14]. Heptane was fed by a pump at a constant rate and the steam was brought by He, which was also used to adjust the partial pressure of the reactants.…”

Novel cobalt-free oxygen permeable membrane

“…Dense oxygen permeable membranes, made of oxygen ion and electron mixed conductors, have attracted increasing attention due to their potential and wide applications in the separation of oxygen from air, [1][2][3][4] conversion of natural gas to syngas, [5][6][7][8] high selective oxidization of light hydrocarbons, [9][10] etc. Among these applications, the conversion of natural gas to syngas in oxygen permeable membrane reactors has important commercial benefits, due to a 25% reduction in the current-technology-based cost of gas-toliquids (GTL) product.…”

“…Additionally, we also discover that barium is more stable than strontium in the A site by comparing long-term stability data of corresponding membrane materials under syngas conditions. [5][6]8,[14][15][16][17] The BCF oxides were prepared by a combined citrate and EDTA complexing method. 13 Powders were pressed into disks under [8][9][10][11][12] MPa for several minutes, and sintered at 1413-1453 K for about 5-10 h in stagnant air with a heating and cooling rate of 2 K min 21 .…”