Tubular disk reactor

Reactor 21 [R 21] 64-Channel Tubular Disk Fixed-bed Reactor... 

Tubular flow reactors (TFR) deviate from the idealized PFR, since the applied pressure drop creates with viscous fluids a laminar shear flow field. As discussed in Section 7.1, shear flow leads to mixing. This is shown schematically in Fig. 11.9(a) and 11.9(b). In the former, we show laminar distributive mixing whereby a thin disk of a miscible reactive component is deformed and distributed (somewhat) over the volume whereas, in the latter we show laminar dispersive mixing whereby a thin disk of immiscible fluid, subsequent to being deformed and stretched, breaks up into droplets. In either case, diffusion mixing is superimposed on convective distributive mixing. Figure 11.9(c) shows schematically the... 

Both disk [49] and tubular [48] type membrane reactor based on BSCF material were investigated in the application for OCM. Between 800 and 900°C, methane conversion was about 2-14%, which was apparently higher than 3.25-0.65% conversion obtained in disk type reactors. On the other hand, the corresponding C2 (C2H4 -I- C2H6) selectivity was 38-52%, which was lower than 48.4-72.8% C2... 

Figure 16.1 Different types of MIEC laboratory scale membrane reactors (a) short hollow fiber with Au sealing in the hot zone, (b) short tubular membrane, and (c) disk membrane.

Figure 3.3 illustrates the tubular reactor for the plasma polymerization. The reactor diameter is 75 mm and its length is 300 mm. A porous polysulfone substrate membrane (Brunswick SDM 90-25, average pore diameter 0.1 /im) disk of 70 mm in diameter is placed in the reactor. After evacuating the reactor, a mixed... 

There are three main types of dense ceramic membranes disk/flat sheet, tubular, and hollow fibers. The disk/flat sheet membranes are applied mostly in research work because they can be fabricated easily in laboratories with a small amount of membrane material. Comparatively, the hollow fiber membranes can provide the largest membrane area per volume but low mechanical strength, while the tubular membranes possess a satisfactory specific membrane area, high mechanical strength, and are easy to assemble in membrane reactors. Dense ceramic MRs can be constructed and operated in either packed bed MR or catalytic MR configurations. 

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