Process for the thermal decoking of cracked gas coolers

Details Process for the thermal decoking of cracked gas coolers Process for the thermal decoking of cracked gas coolers

1981-02-25

1983-12-13

Smith, William F.

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

134 30, 134 39, 165 95, B08B 902

Patent

active

044203438

ABSTRACT:
A process for the thermal decoking of cracked gas coolers for the indirect cooling, by means of water, of ethylene-containing cracked gases which are obtained by thermal cracking of hydrocarbons in the presence of steam in an indirectly heated tube cracking furnace, at cracked gas exit temperature of above 750.degree. C., in which, instead of a heated steam/air mixture, heated air, without steam, is passed through the cracked gas cooled tubes which are to be decoked.

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patent: 2057441 (1936-10-01), McAllister
patent: 2289350 (1942-07-01), Dixon et al.
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patent: 2577254 (1951-12-01), Lawson
patent: 2671741 (1954-03-01), Duvall
patent: 3507929 (1970-04-01), Happel et al.
patent: 3532542 (1970-10-01), Shimizu et al.
patent: 3557241 (1971-01-01), Kivlen et al.
patent: 3570458 (1971-03-01), Sato et al.
patent: 3764634 (1973-10-01), Ozawa et al.

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