Perforated reactor tube and method for forming a fluid wall in a

Details Perforated reactor tube and method for forming a fluid wall in a Perforated reactor tube and method for forming a fluid wall in a

1985-08-16

1987-06-09

Lacey, David L.

Chemistry of inorganic compounds

Miscellaneous process

422158, 422151, 422207, 422240, B01J 300, B01J 1908

Patent

active

046719440

ABSTRACT:
A reactor tube 20 for a high-temperature fluid wall reactor has a generally cylindrical shape and is made of a refractory material which permits the tube to be heated to incandescence. The reactor tube in turn radiates energy inwardly to a reaction zone to sustain the desired high-temperature reaction. At least a length of the tube 20 is perforated to permit an inert gas to pass through the tube to form a protective fluid wall for preventing the radially-inward reactant products from contacting the inner surface 84 of the tube. Perforations 78 are located, shaped and dimensioned such that inert gas jets 86 are formed each having a substantially radially-directed momentum sufficient to repel the reactants. The injection of inert gas is controlled so that gas jets overlap to form the protective fluid wall, but the gas jets do not disturb flow within the radially-inward reaction zone. Sections of the reactor tube may remain unperforated, but are protected by the downstream flow of the injected inert gas.

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patent: 4424026 (1984-01-01), Jensen
patent: 4444726 (1984-04-01), Crotty, Jr. et al.
patent: 4479809 (1984-10-01), Johnson et al.

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