Mitsubishi Heavy Industries Limited

Other

Osaka Gas Company Limited

Mitsubishi Jukogyo Kabushiki Kaisha

Toshihiko Setoguchi

Akinori Yasutake

Norihisa Kobayashi

Isao Mochida

Yuichi Fujioka

Masaaki Yoshikawa

Takahiro Kasuh

Yoshihiko Tsuchiyama

Atsushi Tanaka

Yoshinori Kobayashi

Shigeyasu Ishigami

Katsuhiko Shinoda

Kenji Tagashira

Akira Hashimoto

Hitoshi Nakamura

Naoyuki Kamiyama

Keigo Matsumoto

Shozo Kaneko

Yasutoshi Ueda

Tomoaki Sugiyama

Ryoichi Nishida

Koutaro Fujimura

Hitoshi Nishino

Kiyoshi Tatsuhara

Akira Hattori

Katsuhide Okimi

Kikuo Tokunaga

Susumu Miki

Toshiaki Ohkubo

Junji Imada

Seong-Ho Yoon

Tomoo Akiyama

Yoshihisa Yamamoto

Yasuo Katsuki

Takashi Ohnishi

Akihiro Hachiya

Matsuhei Noda

Koichi Tagami

Kazuya Suenaga

Ryohei Ohashi

An analysis condition adjusting device of a fuel analyzer includes a first NOx computing unit for calculating a reference NOx estimation value using a previously obtained first industrial analysis value of a fuel sample, a second NOx computing unit for calculating a plurality of varied NOx estimation value by varying a value of each of components of the first industrial analysis value, a NOx error computing unit for computing an error as a NOx error between the reference NOx estimation value and each of the varied NOx estimation values, an analysis error tolerance range setting unit for setting an analysis error tolerance range of each of the components based on a value variation amount of each of the components, the value variation amount being defined such that the NOx error is within a tolerance range, and an analysis condition adjusting unit for adjusting an analysis condition of a fuel analyzer.

Analysis condition adjusting device of simple fuel analyzer

Included are a nano-carbon material production unit for producing a nano-carbon material using a fluidized catalyst formed by granulating a carrier supporting an active component, an acid treatment unit for dissolving and separating a catalyst by an acid solution by feeding a catalyst-containing nano-carbon material into the acid solution, and a pH adjustment unit, which is an anti-agglomeration treatment unit, provided on a downstream side of the acid treatment unit, for performing an anti-agglomeration treatment to prevent agglomeration among nano-carbons due to repulsion caused by dissociation among oxygen-containing functional groups added to the nano-carbon material.

Nano-carbon material production apparatus and method

In an exhaust gas treatment system including a denitration device that removes nitrogen oxide in exhaust gas from a heavy fuel-fired boiler, an air preheater that recovers heat in the gas after the nitrogen oxide is removed, an electric precipitator that removes dust while adding ammonia into the gas after heat recovery, a desulfurization device that removes sulfur oxide in the gas after dust removal, and a stack that exhausts the gas after desulfurization to the outside, an ash-shear-force measuring instrument is provided to measure an ash shear force, which is ash flowability, on the downstream side of the electric precipitator, so that a feed rate of an air supply unit that supplies air to the boiler is reduced according to ash shear-force information.

Heavy fuel-fired boiler system and operating method thereof

The present invention is provided with a reaction apparatus () that supplies carbon raw material () and fine particles () to cause carbon nanofibers to grow on surfaces of the fine particles (), a heating apparatus () that heats the reaction apparatus, a recovery line () that recovers fine particles on which the carbon nanofibers have grown from the reaction apparatus, and a carbon nanofiber separating apparatus () that separates carbon nanofibers () from the recovered fine particles on which carbon nanofibers have been grown.

Producing method and apparatus of carbon nanofibers

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.

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

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

CaS oxidation has CaS particles oxidized into CaSO completely as far as to the interior of the particle. The interior of an oxidation apparatus is partially partitioned by a partition to thereby form a first fluidized bed on the inner side, a second fluidized bed on the outer side and a space portion thereabove. A heat exchanger having a baffle plate is disposed on the inner side of the partition and an in-bed heat exchanger is disposed on the outer side of same. A desulfurizing product-containing fine powder and coarse powder and a mixture gas of nitrogen, oxygen and steam are supplied into the second fluidized bed . Also, coal and coal char are supplied into the first fluidized bed from below. Of the particles oxidized in the second fluidized bed and supplied into the first fluidized bed from below with the flow of a mixture gas , the fine powder entrains into the space portion as entrained particles and a major part thereof falls down into the second fluidized bed as particles . The completely oxidized particles are discharged as discharged ash and entrained ash

Calcium sulfide oxidation method and apparatus

A process for the denitration of combustion exhaust gas from combustion equipment by passing the exhaust gas through an ammonia reduction denitrator, comprises providing a bypass having a low-temperature denitrator installed therein; while the temperature of the exhaust gas is not high enough to allow the ammonia reduction denitrator to function properly, as encountered immediately after starting the combustion equipment, passing the exhaust gas through the bypass to perform the denitration thereof by means of the low-temperature denitrator; when the ammonia reduction denitrator has come to function properly, closing the bypass to perform the denitration of the exhaust gas by means of the ammonia reduction denitrator; and regenerating a catalyst within said low-temperature denitrator while the by-pass is closed.

Exhaust gas denitration method

CaS oxidation has CaS particles oxidized into CaSO,completely as far as to the interior of the particle. The interior of an oxidation apparatus,is partially partitioned by a partition,to thereby form a first fluidized bed,on the inner side, a second fluidized bed,on the outer side and a space portion,thereabove. A heat exchanger,having a baffle plate is disposed on the inner side of the partition,and an in-bed heat exchanger,is disposed on the outer side of same. A desulfurizing product-containing fine powder,and coarse powder,and a mixture gas,of nitrogen, oxygen and steam are supplied into the second fluidized bed,. Also, coal,and coal char,are supplied into the first fluidized bed,from below. Of the particles,oxidized in the second fluidized bed,and supplied into the first fluidized bed,from below with the flow of a mixture gas,, the fine powder entrains into the space portion,as entrained particles,and a major part thereof falls down into the second fluidized bed,as particles,. The completely oxidized particles are discharged as discharged ash,and entrained ash

Calcium sulfide oxidation method

A dust collecting apparatus and method for dedusting a Ca-containing gas using a ceramics filter is provided, in which a filter differential pressure elevation rate is suppressed. A desulferizing agent,and a mineral,containing MgO are supplied via a hopper,a valve,and a feeder,into a pressurized fluidized-bed combustion furnace,together with coal,and air,. A combustion gas,is dedusted by a cyclone,to become a combustion gas,, the combustion gas,enters a filter container,having a ceramics filter,and is further dedusted. A combustion gas,which is dedusted is supplied into a gas turbine,to generate power, and combustion gas,heats a waste heat recovery boiler,which in turn drives a steam turbine,. The mineral,containing MgO is added in the combustion gas,which flows in the ceramics filter,. Thereby MgO is added to the combustion gas so that the filter differential pressure elevation rate can be suppressed. The more MgO that is supplied, the greater the effect becomes, and an operation stop due to the differential pressure elevation is eliminated.

Dust collecting method

Heat-treated active carbons for use in denitration, processes for

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Nagasaki, Japan

Toshihiko Setoguchi