Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition – Control element responds proportionally to a variable signal...
Patent
1979-08-21
1981-10-13
Smith, William F.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
Control element responds proportionally to a variable signal...
422112, 422144, 422145, G05D 1600, G05D 700, F27B 1508
Patent
active
042948037
ABSTRACT:
In a reactor for cracking heavy hydrocarbon oil through a fluidized bed of the particles of natural ores, coke-like materials are deposited on a top of the reactor or 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 .mu.m 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/m.sup.3. 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.
REFERENCES:
patent: 2735806 (1956-02-01), Molstedt et al.
patent: 2824046 (1958-02-01), Kimberlin
patent: 2916438 (1959-12-01), Jahnig et al.
patent: 3409542 (1968-11-01), Molstedt
Kiuchi Norihiro
Miyamoto Tomohiko
Satomi Yoshihito
Tomuro Jinichi
Uchida Seiichi
Beall, Jr. Thomas E.
Hitachi , Ltd.
Konkol Chris
Nippon Mining Co., Ltd.
Smith William F.
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