C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/127
C10G 9/32 (2006.01) C10B 43/14 (2006.01) C10G 11/18 (2006.01)
Patent
CA 1118695
ABSTRACT OF THE DISCLOSURE In a reactor for cracking heavy hydrocarbon oil through a fluidized bed of particles of natural ores, coke-like materials are deposited on a top of the reactor at pipe inside surfaces of a transfer line from the reactor to a scrubber. To effectively scour out the deposited coke-like materials, particles of natural ores having a mean diameter of a few hundred µm is made to be contained in an effluent gas from the top of reactor, passing through the transfer line at a concentration of 1 to 40 g/m3. The particles of natural ores have a good effect of scouring out the deposited coke-like materials and can keep the transfer line efficiently clean even with a small amount of the particles of natural ores, decreasing a pressure drop in the transfer line.
312336
Kiuchi Norihiro
Miyamoto Tomohiko
Satomi Yoshihito
Tomuro Jinichi
Uchida Seiichi
Hitachi Ltd.
Kirby Eades Gale Baker
Nippon Mining Company Limited
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