Shell-and-tube apparatus having an intermediate tube plate

Details Shell-and-tube apparatus having an intermediate tube plate Shell-and-tube apparatus having an intermediate tube plate

1990-02-16

1991-09-17

Flanigan, Allen J.

Heat exchange

Three non-communicating fluids

165 83, 165158, 422201, F28D 710

Patent

active

050486012

ABSTRACT:
A shell-and-tube apparatus, more specifically, a shell-and-tube reactor, which includes a vessel, at least one intermediate tube plate sectioning the interior of the vessel into at least two compartments having different temperatures, a number of heat transferring tubes penetrating the intermediate tube plate or plates, and a fluid passing through the tubes which is heated or cooled by a heat transfer medium surrounding the tubes. At least one insulation plate or plates are provided on one or both sides of the intermediate tube plate so that the space between the intermediate tube plate or plates and, if two or more insulation plates are used, the space or spaces between the insulation plates may be utilized as a stagnation zone for the heat transfer medium, so as to make the temperature gradient through the intermediate tube plate or plates gentle and relax the thermal stress occurring in the body wall. The reactor is particularly useful for production of (meth)acrolain and/or (meth)acrylic acid by catalytic gas-phase oxidation of propylene or butenes.

REFERENCES:
patent: 2986454 (1961-05-01), Jewett
patent: 3001766 (1961-09-01), Laist
patent: 3982585 (1976-09-01), Gribsvad
patent: 4157114 (1979-06-01), De Lorenzo
patent: 4256783 (1981-03-01), Takada et al.

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