DEVICE FOR TREATING EXHAUST GAS - KAWASAKI HEAVY IND LTD

Title:

DEVICE FOR TREATING EXHAUST GAS

Document Type and Number:

WIPO Patent Application WO/1993/024207

Kind Code:

A1

Abstract:

A fluid catalyst reactor (1, 21, 31 or 41) is rotatably provided in an outer casing (10, 22 or 52) having an untreated gas introducing pipe (11, 26 or 53) to receive exhaust from the diesel engine (EG). The reactor is driven by the diesel engine (EG). The reactor is filled with powdery catalyst (7) such as zeolite and catalyst (7) sticks to the inner peripheral wall of a cylindrical porous dispersing plate (2, 23, 42 or 42a) of the reactor with the rotation of the reactor and forms a fluidized layer while fluidized by untreated gas flowing inward in the radial direction from the inside of the outer casing into the reactor. Untreated gas having flowed into the reactor is treated with catalyst (7), passes a cylindrical filter (8, 34, or 48), and is exhausted through an exhaust pipe (6, 29, 35 or 47). Catalyst (7) reduces NOx gas in untreated gas. The fluidized catalyst layer is maintained by a strong centrifugal force acting thereon even though flowing speed of untreated gas into the reactor is high, whereby the flow quantity of untreated gas can be made large with the size of treating device reduced.

Inventors:

YOSHIDA KUNIO (JP)
TSUTSUMI ATSUSHI (JP)
SAKAKIDA YASUFUMI (JP)
TSUTSUMI KAZUO (JP)
TAKADA TOMOAKI (JP)

Application Number:

PCT/JP1992/000709

Publication Date:

December 09, 1993

Filing Date:

June 01, 1992

Export Citation:

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Assignee:

KAWASAKI HEAVY IND LTD (JP)
YOSHIDA KUNIO (JP)
TSUTSUMI ATSUSHI (JP)
SAKAKIDA YASUFUMI (JP)
TSUTSUMI KAZUO (JP)
TAKADA TOMOAKI (JP)

International Classes:

B01D53/94; B01J8/10; F01N3/28; F02B3/06; (IPC1-7): B01D53/36

Foreign References:

JPS6318425Y2	1988-05-24
JPS61238328A	1986-10-23

Other References: