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US 7,491,317 B2Granted
Desulfurization in turbulent fluid bed reactor
AssigneeChina Petroleum & Chemical Corporation
InventorsPaul F. Meier, Max W. Thompson, Victor G. Hoover, Guido R. Germana
Life of this patent
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Abstract
A method and apparatus for removing sulfur from a hydrocarbon-containing fluid stream wherein desulfurization is enhanced by improving the contacting of the hydrocarbon-containing fluid stream and sulfur-sorbing solid particulates in a fluidized bed reactor.
Claims7
A desulfurization process comprising the steps of:
- (a) contacting a hydrocarbon-containing fluid stream with finely divided solid sorbent particulates comprising a reduced-valence promoter metal component and zinc oxide in a fluidized bed reactor vessel under desulfurization conditions sufficient to remove sulfur from said hydrocarbon-containing fluid stream and convert at least a portion of said zinc oxide to zinc sulfide, thereby providing a desulfurized hydrocarbon-containing stream and sulfur-loaded sorbent particulates;
- (b) simultaneously with step (a), contacting at least a portion of said hydrocarbon-containing stream and said sorbent particulates with a series of substantially horizontal, vertically spaced baffle groups comprising a plurality of substantially parallel baffles each presenting a generally V-shaped cross-section, thereby reducing axial dispersion in said fluidized bed reactor;
- (c) contacting said sulfur-loaded sorbent particulates with an oxygen containing regeneration stream in a regenerator vessel under regeneration conditions sufficient to convert at least a portion of said zinc sulfide to zinc oxide, thereby providing regenerated sorbent particulates comprising an unreduced promoter metal component;
- and
- (d) contacting said regenerated sorbent particulates with a hydrogen-containing reducing stream in a reducer vessel under reducing conditions sufficient to reduce said unreduced promoter metal component, thereby providing reduced sorbent particulates.
2 more elements
Dependencies are inferred from the claim text.