Membrane double spiral-plate

Double Spiral-Plate or Spiral-Tube Membrane Reactors... 

Finally, possible causes for deactivation of catalytic membranes are described and severad aspects of regenerating catalytic membrane reactors are discussed. A variety of membrane reactor configurations are mentioned and some unique membrane reactor designs such as double spiral-plate or spiral-tube reactor, fuel cell unit, crossflow dualcompartment reactor, hollow-fiber reactor and fluidized-bed membrane reactor are reviewed. 

In the first configuration (Figure 11.44), a Pd or Pd-alloy membrane is made of a spiral plate and forms two compartments on the opposite sides of the membrane with double spirals. The edges of the double spiral coiled plate are fixed to the walls of the reactor shell. The number of spirals can be as high as 200. 

In addition to the above cross-flow reactors of extended definition, the block of thin-walled spiral-tubular-membrane catalyst reactor and the double-spiral coiled-plate-membrane reactor may be included [30-33]. 

Double spiral coiled plate membrane reactor. 

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