Ebara Corporation

Mitsubishi Chemical Corporation

Hajime Kawaguchi

Tsutomu Higo

Takahiro Ohshita

Naoki Inumaru

Shigeru Kosugi

Kazutaka Ida

Ken Shiraga

Kiyoshi Kadowaki

Mitsuyuoshi Kaneko

Kenichi Kiyono

Yoshihiro Taki

Katsuyuki Kurihara

Katsuhisa Tanaka

Koiti Ohya

Keisuke Tsukamoto

Tetsuo Msuyama

In a method for treating a combustion exhaust gas from a waste burning facility, the exhaust gas has its temperature lowered to 180-230.degree. C., in a temperature lowering unit, is freed of dust in a dry dust collector, passed through a dioxin and NOx removing unit using a vanadium oxide-based catalyst and, thereafter, the exhaust gas at 180-230.degree. C. is further passed through a heat exchanger to effect heat recovery. The vanadium oxide-based catalyst is a vanadium oxide alone or the combination thereof either with an oxide of at least one element selected from the group consisting of molybdenum, tin, yttrium, boron and lead or with gold. In addition, a tungsten oxide may be used. These catalysts are preferably carried on titania for use. The method and an apparatus for implementing it require a simple system configuration and yet assure high thermal efficiency while achieving efficient removal of dioxins and nitrogen oxides.

Method and apparatus for treating combustion exhaust gases

Internal circulating fluidized bed type boiler and method of controlling

Incineration control apparatus for a fluidized bed boiler

A thermal reactor which utilizes a fluidizing bed includes a thermal energy recovery chamber having a heat exchanger therein. Fluidizing medium disposed in the fluidizing bed is supplied into the thermal energy recovery chamber due to circulation of the fluidizing medium within the fluidizing bed. The fluidizing medium is passed through the thermal energy recovery chamber such that thermal energy present in the fluidizing medium is transferred to the heat exchanger.

Thermal reactor

A thermal reactor of fluidizing bed type includes a thermal recovering arrangement. A part of a fluidizing medium is supplied into the thermal energy recovering arrangement so as to pass therethrough, whereby; thermal energy is recovered by a heat exchanger disposed in the recovering arrangement.

Growing community of inventors

Kanagawa, Japan

Hajime Kawaguchi