Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including specific material of construction
Reexamination Certificate
2011-06-21
2011-06-21
Griffin, Walter D (Department: 1774)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Including specific material of construction
C422S140000, C422S145000, C422S214000, C422S215000, C422S224000
Reexamination Certificate
active
07964157
ABSTRACT:
Catalytic cracking riser reactor extending between an inlet for hydrocarbonaceous feed and catalyst particles and an outlet for discharging cracked products and spent catalyst particles, which riser reactor has been provided with at least one contacting device, wherein the contacting device comprises a composite of refractory material and a metal structure, which metal structure is connected to the outer wall of the riser reactor. If more contacting devices have been provided, they are preferably axially spaced apart and are disposed along the inner surface of the riser reactor.
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Heijden, et al. “Modular Cold Wall HIB-ring design”, Jul. 4, 2006.
Dries Hubertus Wilhelmus Albertus
Horwege Jason Andrew
Van Der Heijden Sebastiaan Christoffel
Wolfert Anthony
Griffin Walter D
Nguyen Huy-Tram
Shell Oil Company
Stewart Charles W.
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Howard Ivor Berresford
"HIB rings" were introduced in a commercial riser reactor of a Catalytic Cracking Unit 1975. They proved very successful, reducing secondary reactions i.e dry gas production, and hence increasing the production of the main products, gasoline and gas oil.
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