Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1990-04-27
1992-11-03
Myers, Helane
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
208158, 208159, 208160, 208164, 502 40, 502 43, 502 44, C10G 1100, C10G 3510, B01J 2034
Patent
active
051604264
ABSTRACT:
A process and apparatus for achieving hot catalyst stripping of spent FCC catalyst in a stripper mounted over a bubbling bed regenerator. Hot catalyst stripping is achieved by indirect transfer of heat from the regenerator to the stripper. Heat pipes, surface modifications such as fins on the stripper vessel, or use of a stripper in, or connective with, a heat exchange tube bundle may be used to heat spent catalyst with heat from the regenerator dilute phase, without transferring catalyst from the regenerator. The benefits of hotter catalyst stripping are achieved, without increasing catalyst traffic in the regenerator.
REFERENCES:
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patent: 4789458 (1988-12-01), Haddad et al.
patent: 4820404 (1989-04-01), Owen
patent: 4917790 (1980-04-01), Owen
patent: 5032251 (1991-07-01), Owen
patent: 5032252 (1991-07-01), Owen et al.
Oil and Gas Journal, "Fluid Catalytic Cracking Report", by Amos A. Avidan, Michael Edwards, and Hartley Owen (1990).
Perry's Chemical Engineer's Handbook, 6th Edition, pp. 11-48, Jul. 84.
McKillop Alexander J.
Mobil Oil Corporation
Myers Helane
Speciale Charles J.
Stone Richard D.
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