Reforming propane steam

A mechanistic model for propane steam reforming on a bimetallic Co-Ni catalyst in fluidized bed reactor... 

Figure 1.9 Hybrid, multi-scale micro-reactor plant for catalyst testing for propane steam reforming [15],...

Hydrocarbon Reforming 5 [HCR 5] Sandwich Reactors Applied to Propane Steam Reforming... 

Kolb et al. [52] applied small externally heated sandwich-type reactors for catalyst screening for propane steam reforming. Two plates of 2 mm thickness were attached to each other and bonded by laser welding. The reactors where 41 mm long and 10 mm wide carrying 14 channels each, which were 25 mm long, 500 pm wide and 250 pm deep on each plate, thus resulting in a total channel cross-section of 500 pm x 500 pm when mounted. 

Figure 2.23 Conversion vs. S/C ratio at various reaction temperatures of propane steam reforming over Rh/Pt/Ce02 catalyst [52] (by courtesy of Elsevier Ltd.).

Wash coats made of various source aluminas were prepared by applying this procedure (Figure 2.96) [147]. The catalysts obtained after subsequent impregnation were applied to methanol steam reforming [25, 28], propane steam reforming [52], water-gas shift [84] and preferential oxidation [89], to name but a few reaction systems. 

Kolb, G., Zapf, R., Hessel,V., Lowe, H., Propane steam reforming in micro channels, Appl. Catal. A 2004, submitted for publication. 

Zhang, L., Wang, X., Tan, B., and Ozkan, U.S. Effect of preparation method on structural characteristics and propane steam reforming performance of Ni-Al203 catalysts. Journal of Molecular Catalysis A Chemical, 2009, 297 (1), 26. 

Resini, C., Herrera Delgado, M.C., Arrighi, L., Alemany, L.J., Marazza, R., and Busca, G. Propene versus propane steam reforming for hydrogen production over Pd-based and Ni-based catalysts. Catalysis Communications, 2005, 6 (7), 441. 

Temporal product (Hy, CO, CO2 and CH4) distribution was, however, dependent on the feed composition and temperature. Stoichiometrically, propane steam reforming requires a steam-... 

Figure 7.5 Gas composition of the reformer product as determined for the integrated propane steam reformer-catalytic burner during lOOOh test duration [40].

Ceramic monolithic structures made from inverted opal silicon carbonitride (see Figure 6.6) were presented by Mitchell et al. [460]. The inverse opal structure was achieved using polystyrene templates. They prepared monoliths of 74% porosity, typically 350-pm wide, 100-pm high and 3-mm long. Propane steam reforming was then successfully performed in the reactor (see Section 7.1.2). 

The ceramic monolithic stmctures made from inverted opal silicon carbonitride (see Section 6.2), which had been developed by Mitchell et al. [460], were applied for propane steam reforming. A 5 wt.% mthenium catalyst was coated onto the monoliths. Full conversion was achieved at fairly high reactor temperatures of 900 °C. Despite the low S/C ratio of 1.33, stable operation of the catalyst and reactor at 800 °C and 60% conversion was achieved through several hours of operation and more than 15 thermal cycles without apparent coke formation. 

Propane steam reforming in microchannels. Appl. Catal. A, 277, 155-166. 

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