Mitsubishi Heavy Industries Limited

Mitsubishi Jukogyo Kabushiki Kaisha

Osaka Gas Company Limited

Other

Akinori Yasutake

Norihisa Kobayashi

Jun Izumi

Toshihiko Setoguchi

Hiroyuki Tsutaya

Isao Mochida

Masaaki Yoshikawa

Nariyuki Tomonaga

Takahiro Kasuh

Takashi Kurisaki

Kiyoshi Tatsuhara

Yuichi Fujioka

Yoshihiko Tsuchiyama

Kenichi Hamada

Takayuki Harada

Hitoshi Nakamura

Seiichi Tanabe

Ryoichi Nishida

Tomoaki Sugiyama

Masahiko Nagai

Hitoshi Nishino

Akira Hattori

Katsuhide Okimi

Toshiaki Ohkubo

Kazuaki Oshima

Matsuhei Noda

Akihiro Hachiya

Seong-Ho Yoon

Norihisa Koyayashi

Hideki Moriai

Masaaki c/o Osaka Gas Co Ltd Yoshikawa

Norihisa c/o Mitsubishi Heavy Ind Ltd Kobayashi

Mitsumura Nishida

A carbon nano-fibrous rod including a predetermined number of hexagonal carbon layers extending in one direction, and a fibrous nanoncarbon which includes a plurality of the carbon nano-fibrous rods three-dimensionally gathered are disclosed.

Carbon nano-fibrous rod, fibrous nanocarbon, and method and apparatus for producing fibrous nanocarbon

This invention relates to a technique for removing nitrogen oxides (NO) present in exhaust gases discharged from boilers and the like. When the temperature of the exhaust gas is 100&#xb0; C. or below, a heat-treated active carbon produced by heat-treating a raw active carbon at 600 to 1,200&#xb0; C. in a non-oxidizing atmosphere so as to remove oxygen-containing functional groups present at the surfaces thereof and thereby reduce the atomic surface oxygen/surface carbon ratio to 0.05 or less is preferably used. When the temperature of the exhaust gas exceeds 100&#xb0; C., a heat-treated active carbon produced by heat-treating a raw active carbon at 600 to 1,200&#xb0; C. in a non-oxidizing atmosphere and activating the surfaces thereof with sulfuric acid or nitric acid to impart oxidizing oxygen-containing functional groups thereto is preferably used.

Heat-treated active carbons for use in denitration, processes for producing same, denitration method using same, and denitration system using same

This invention relates to a technique for removing nitrogen oxides (NO) present in exhaust gases discharged from boilers and the like. When the temperature of the exhaust gas is 100&#xb0; C. or below, a heat-treated active carbon produced by heat-treating a raw active carbon at 600 to 1,200&#xb0; C. in a non-oxidizing atmosphere so as to remove oxygen-containing functional groups present at the surfaces thereof and thereby reduce the atomic surface oxygen/surface carbon ratio to 0.05 or less is preferably used. When the temperature of the exhaust gas exceeds 100&#xb0; C., a heat-treated active carbon produced by heat-treating a raw active carbon at 600. to 1,200&#xb0; C. in a non-oxidizing atmosphere and activating the surfaces thereof with sulfuric acid or nitric acid to impart oxidizing oxygen-containing functional groups thereto is preferably used.

A flue gas desulfurization apparatus includes at least one activated carbon fiber boardprovided in a catalyst unit, the board being formed by alternatingly juxtaposing one or more plate-like activated carbon fiber sheets and one or more corrugated activated carbon fiber sheets so as to provide vertically extending conduits, wherein water for producing sulfuric acid is supplied, through a capillary phenomenon, to the activated carbon fiber boardprovided in the catalyst unit. The flue gas desulfurization apparatus attains removal of sulfur oxides (SO) by adding a minimum required amount of water to the activated carbon fiber boardso as to attain uniform water distribution and can reduce the amount of water required for removing sulfur oxides (SO).

Flue gas desulfurization apparatus and flue gas desulfurization system

An apparatus for regenerating an adsorbent includes an electrolytic cell filled with an electrolyte and an electrode unit that includes a first electrode made from the adsorbent in which a substance is adsorbed and a second electrode. The first electrode and the second electrode are soaked in the electrolyte. The apparatus also includes a power source that supplies a voltage applied between the first electrode and the second electrode.

Method of and apparatus for regenerating adsorbent

A desulfurization apparatus for desulfurizing a flue gas containing sulfur oxides through contact with a porous carbon material. The carbon material, which is provided in a desulfurization tower, is at least one species selected from activated carbon and activated carbon fiber. The apparatus contains an NO-gas-feeding apparatus for feeding NOgas into the desulfurization tower. Within the desulfurization tower, a showering mechanism is provided at the top, the showering mechanism adjusting water content of the flue gas in the desulfurization tower to that corresponding to saturation with water vapor or higher at the treatment temperature.

Desulfurizer comprising activated carbon and method of desulfurization

Flue gas desulfurization apparatus and flue gas desulfurization system, and method for operating flue gas desulfurization apparatus

The invention has as an object proving a carbon nanomaterial fabrication method that can continuously mass-produce a high purity carbon a nanomaterial. The tube-shaped or fiber-shaped carbon nanomaterial having carbon as the main constituent is fabricated with a compound that includes carbon (raw material) and an additive that includes a metal by using a fluidized bed reactor.

Manufacturing method for a carbon nanomaterial, a manufacturing apparatus for a carbon nanomaterial, and manufacturing facility for a carbon nanomaterial

A flue gas processing apparatus for removing sulfur oxide contained in a gas, including a desulfurization tower through which the gas flows, the desulfurization tower including a catalyst unit having at least one activated carbon fiber board which adsorbs the sulfur oxide and a water-supply device configured to supply water to the catalyst unit so as to form sulfuric acid from the sulfur oxide adsorbed to the at least one activated carbon fiber board, the water-supply device being positioned above the catalyst unit in the desulfurization tower, and a pressurizing device configured to apply pressure to the gas supplied to the desulfurization tower so as to flow the gas through the catalyst unit by the pressure.

Flue gas processing apparatus and desulfurization method

An active carbon for use in the treatment of exhaust gas can be obtained by heat-treating a starting active carbon fiber derived from polyacrylonitrile, pitch or the like or a starting particulate active carbon in a non-oxidizing atmosphere. The heat-treating temperature is preferably in the range of 600 to 1,200 &deg; C. for use in the desulfurization of exhaust gas, and in range of 600 to 1,000&deg; C. for use in the denitration of exhaust gas. By using the resulting heat-treated active carbon for the purpose of desulfurization, the sulfur oxide concentration in exhaust gas can be reduced to 5 ppm or below. Moreover, by using the heat-treated active carbon in combination with conventional denitration based on selective catalytic reduction, the nitrogen oxide concentration in exhaust gas can be reduced to 1 ppm or below.

Exhaust gas treating systems

Device for eliminating particulates in exhaust gas and method for eliminating the particulates

An apparatus for manufacturing high concentration ozone gas, characterized by employing a pressure swing adsorbing apparatus having a plurality of adsorbing layers filled with ozone adsorbent, in which the ozone adsorbent is one or two or more kinds of adsorbent selected from the group consisting of high silica pentasyl zeolite, dealuminized fogersite, and mesoporous silicate. A method and apparatus for manufacturing high concentration ozone gas, characterized by employing a TSA adsorbing system, discharging oxygen concentrated gas at a relatively low temperature from the adsorbing layers, passing purge gas at a relatively high temperature into the adsorbing layers in the desorbing process in an opposite direction of the gas flow in the adsorbing process, and recovering the concentrated ozone gas continuously, in which the ozone adsorbent is one or two or more kinds of above adsorbent, and the gas containing ozone from the ozone generating apparatus is cooled by the oxygen concentrated gas at a relatively low temperature flowing out from the adsorbing layers in the adsorbing process.

Apparatus for manufacturing high concentration ozone gas

Ozone generated from an ozonizer is added to a polluted gas containing harmful substances, which is generated from a polluted gas source. Then, the ozone-added polluted gas is allowed to flow through an adsorbing layer containing a high-silica adsorbent that adsorbs both ozone and harmful substances. The harmful substances contained in the polluted gas are converted into harmless substances within the adsorbing layer by the action of the ozone.

Method and apparatus for processing polluted gas containing harmful substances

An ozone storage/recovery method comprises a process for supplying an ozone-containing gas, generated by an ozone generator, to an ozone adsorbent tank filled with an ozone adsorbent contained at least one high-silica material selected from the group consisting of a high-silica pentasil zeolite, a dealumination faujasite and a mesoporous silicate, causing the adsorbent to adsorb ozone at a temperature of 0&deg; C. or below, and storing the ozone, and a process for desorbing the ozone adsorbed by the adsorbent in the ozone adsorbent tank and recovering the ozone from the adsorbent tank, whereby ozone can be supplied as required.

Ozone storage/recovery system

A polluted fluid, such as exhaust gas from a refuse incinerator, containing at least one pollutant, such as volatile organic compounds (VOCs), SOx or NOx, is processed by passing the polluted fluid through an adsorbing layer containing a high-silica adsorbent capable of adsorbing both ozone and at least one pollutant to adsorb at least one pollutant on the adsorbent. Then, ozone is brought into contact with the adsorbing layer to oxidize and decompose the pollutant adsorbed on the adsorbent, while stopping the flow of the polluted fluid.

Growing community of inventors

Nagasaki, Japan

Akinori Yasutake