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Liquid Level Detecting Apparatus In Three-Phase Fluidized Reaction Apparatus Such As Boiling Bed Reactor
Patent Number: JP60147230
Publication date: 1985-08-03
Inventor(s): Kaneko Masahito, Horizoe Hirotoshi, Kajimoto Hikokusu, Shimada Takafumi
Applicant(s): Mitsubishi Jukogyo KK (Mitsubishi Heavy Ind Ltd)
Requested Patent: JP60147230
Application Number: JP19840001363 19840110
Priority Number(s):
IPC Classification: B01J8/18
EC Classification:


PURPOSE: To make it possible to prolong the life of a catalyst and to extend an operation time, by providing a nozzle, which has a nozzle cleaner mounted therein, for connecting the liquid phase part in a reaction apparatus and a liquid sump tank while arranging a as pressure liveling pipe.

CONSTITUTION: The interior of a three-phase fluidized reactor 1 consists of a dense catalyst bed 12, a loose catalyst bed 13, a gaseous layer 14 and boundary phases 6, 7. The dense catalyst bed 12 mainly comprises freely fluidized catalyst particles and the loose catalyst bed 13 almost consists of a reaction liquid and gas. In the reactor 1, a large amount of a liquid is formed into a rising stream from a fluidizing plate 11 for efficiently performing the fluidization of the catalyst bed 12 is freely fluidized. The liquid supplied to a recirculation pump 3 is efficiently separated from gas and the catalyst by a catalyst/gas phase separator 5 and recirculated to the recirculation pump 3 through a nozzle 4. A pressure leveling pip 18 connects a liquid sump part 15 and a nozzle 9 to uniformize a pressure level.