Method of preventing metal dusting corrosion of ducts which cond

Details Method of preventing metal dusting corrosion of ducts which cond Method of preventing metal dusting corrosion of ducts which cond

1996-01-25

1999-08-10

Warden, Robert

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Maintaining environment nondestructive to metal

138148, 138149, C23C 808

Patent

active

059355174

ABSTRACT:
A carbon monoxide containing gas mixture at a temperature of 500.degree. C. is conducted through the inner protective tubing of a sheath tube lined with a thermally insulating protecting composition. The inner tubing is divided into sections and a potentially CO-free mass is introduced in the sheath tube in the regions of the thermally insulating mass to permeate the latter and form a barrier between the carbon monoxide gas and sheath tube, thereby eliminating hot spots and metal dusting corrosion.

REFERENCES:
patent: 2915367 (1959-12-01), Olson et al.
patent: 4048352 (1977-09-01), Pignocco et al.
patent: 4582094 (1986-04-01), Stausebach
patent: 4936871 (1990-06-01), Wilmer et al.
patent: 4995427 (1991-02-01), Berchem
patent: 5078182 (1992-01-01), Kraft
patent: 5490974 (1996-02-01), Hohmann et al.

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