Mineral oils: apparatus – Vaporizing – Circulators or agitators
Patent
1992-11-16
1995-06-06
Wu, Shean
Mineral oils: apparatus
Vaporizing
Circulators or agitators
196107, 196133, B01D 300, B01D 100
Patent
active
H00014427
ABSTRACT:
Petroleum coke slumping in a petroleum coking drum is reduced by the use of a petroleum coking drum comprising a) a generally cylindrical vessel having a principal diameter portion, an upper reduced diameter portion at an upper end of the vessel, an upper reducing diameter portion extending from a lower end of the upper reduced diameter portion to an upper end of the principal diameter portion, a lower reduced diameter portion at a lower end of the vessel and a lower reducing diameter portion extending from an upper end of the lower reduced diameter portion to a lower end of the principal diameter portion; b) a top head removably positionable to close the upper reduced diameter portion; c) a bottom head removably positionable to close the lower reduced diameter portion; and d) a plurality of restraining bars positioned around an inner circumference of the lower reduced diameter portion. Restraining bars may also be positioned on inner surfaces of the lower reducing diameter portion or on both the reducing diameter portion and the reduced diameter portion of the inner walls of the petroleum coking drum.
REFERENCES:
patent: 1871932 (1932-08-01), Watts et al.
patent: 1979550 (1934-11-01), Huff
patent: 1980218 (1934-11-01), Morrell
Edgerton David M.
Miller Kip W.
Willis Kerry L.
Scott F. Lindsey
Wu Shean
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