Mitsubishi Heavy Industries Limited

Mitsubishi Jukogyo Kabushiki Kaisha

Japan Nuclear Cycle Development Institute

Tdk Corporation

Hiroyuki Tsutaya

Jun Izumi

Akinori Yasutake

Nariyuki Tomonaga

Kuniaki Ara

Toshiro Nishi

Hiroaki Ohira

Nobuki Oka

Kazuya Kurome

Naoki Yoshioka

Mikio Toda

Masayoshi Kubo

Kenichi Hamada

Kenichi Maehara

Tatsuo Amitani

Takayuki Harada

Seiichi Tanabe

Kazuaki Oshima

Mitsumura Nishida

Hideki Moriai

Suppression or enhancement of various properties of a liquid fluid is aimed by improving uniform dispersion of nanoparticles by means of making a state in which no oxidized film exists on the surfaces of the nanoparticles to be dispersed in the liquid fluid. The location of the liquid fluid is confirmed with ease by enhancing the brightness of light emission of the fluid through uniform dispersion of the nanoparticles in the liquid fluid containing a material having a flame reaction. In this way, as to liquid fluids utilized in various industries, it is possible to offer a technology to desirably enhance or suppress a property desired to be enhanced and a property desired to be suppressed among various properties that its constituents have.

Nanoparticle-dispersed high-performance liquid fluid, production method and apparatus for the fluid, and leak detection method for the fluid

A light-emitting material is provided allowing a light-emitting body having an excellent low-excitation characteristic and high brightness to be obtained by using a light-emitting material containing a light-emitting base material that emits light through radiative transition of electrons in material atoms, the light-emitting base having nanoparticles added thereto and dispersed therein, the light-emitting material also allowing a reduction in excitation energy and an increase in brightness to be simultaneously achieve, thereby allowing, for a wide range of light-emitting bodies, a reduction in excitation energy and a significant improvement in brightness to be achieved in a simple structure. Also provided is a light-emitting body having the light-emitting material and a light-emitting method.

Light-emitting material, light-emitting body, and light-emitting method

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.

Method for processing polluted fluid containing pollutants

A method 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 for manufacturing high concentration ozone gas, characterized by employing a TSA adsorbing system, 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.

Method for manufacturing high concentration ozone gas

An object of the present invention is to provide an ozone adsorbent which has high ozone-adsorbing power even in a moisture-containing system and exhibits a high degree of ozone retention (and a low degree of ozone decomposition), as well as a molded product made by molding this ozone adsorbent into a form adapted to practical use, and a method of making the same. The present invention provides an ozone adsorbent comprising one or more members selected from the group consisting of high-silica pentasilzeolite having a SiO,/Al,O,ratio of not less than 70, dealuminized faujasite having a SiO,/Al,O,ratio of not less than 20, and mesoporous silicate having a SiO,/Al,O,ratio of not less than 20, as well as an ozone-adsorbing molded product and a method of making the same.

Ozone adsorbent, ozone-adsorbing molded product, and method of making same

Ozone storage/recovery method

A method for collecting volatile organic substances from an off-gas containing moisture and volatile organic substances. The organic substances are removed from the gas containing the organic substances and the moisture by introducing the gas into an adsorbing tower filled with the adsorbents and being in the adsorbing process under a relatively low temperature condition. The gas is discharged outside the system as the gas containing the moisture but from which the organic substances have been removed. The organic substances are desorbed under a relatively high temperature condition in the regenerating process for the regeneration. The moisture is removed from the desorbed gas discharged from the adsorbent regenerating process in a dehumidifying tower filled with the moisture absorbent by the temperature swing method or pressure swing method. The obtained dry gas containing a high concentration of organic substances is introduced into a liquefier to be cooled and/or pressurized and to be liquefied so that the organic substances are collected. It is therefore possible to collect the organic substances at a high concentration magnification rate without degrading the organic substances and the adsorbents.

Method for collecting volatile organic substances

A method for collecting volatile organic substances from off-gas containing moisture and volatile organic substances. After the moisture has been removed by a dehumidifying tower filled with moisture absorbent for selectively adsorbing the moisture from the gas containing the organic substances and the moisture, the organic substances are adsorbed and removed under a relatively low temperature condition. The organic substances is desorbed under a relatively high temperature condition from the adsorbing tower which is saturated with the organic substances. The desorbed organic substances are liquefied and collected under a low temperature and/or pressurizing condition. The dry gas from which the organic substances have been removed and made harmless is heated if necessary. Thereafter, the dry gas is purged in a counter flow manner in the dehumidifying tower which is saturated with the moisture to perform the regeneration of the moisture absorbent and is discharged to the outside of the system together with the desorbed moisture.

A method and equipment for desulfurizing exhaust gas from a combustor in which the exhaust gas containing SO.sub.2 from the combustor is brought into contact with SO.sub.2 absorbent to remove SO.sub.2 and is blown down out of the system; on the other hand, the SO.sub.2 absorbent absorbed SO.sub.2 is brought into contact with air to desorb SO.sub.2 and the air containing the desorbed SO.sub.2 is supplied to the combustor as air for combustion to burn to raise the SO.sub.2 concentration in the exhaust gas from the combustor; and the exhaust gas not undergone contact with the absorbent or a part of the air undergone contact with the SO.sub.2 absorbent are taken out of the system.

Desulfurizing method for exhaust gas from combustor

Oxygen adsorbent for adsorbing oxygen from a mixed gas containing oxygen which comprises Na-A type zeolite containing iron with a valence of at least 2 or Na-A type zeolite in which a portion of Na is substituted with K and also contains iron. A process for the separation of oxygen from a mixed gas containing it by contacting the gas with the oxygen adsorbent at a low temperature to adsorb oxygen selectively.

Oxygen absorbent and process for the separation of oxygen and nitrogen

The invention relates to a process and apparatus for separating mixed gas by adsorption in which adsorption and desorption steps are repeatedly carried out in a plurality of adsorption towers in staggered timings. The invention is characterized in that upon commencement of the desorption step, mixed gas having a low adsorbate constituent gas concentration which is delivered in the initial part of a pressure-reducing period (a primary pressure-reducing period) in an adsorption tower which has completed adsorption, is fed into an adsorption tower which has finished pressure-reduction to scavenge and desorb the adsorbate constituent gas adsorbed by an adsorbent, whereby enhancement of a yield of an unadsorbate gas can be achieved as compared to scavenging desorption making use of a part of an unadsorbate gas delivered during an adsorption step.

Growing community of inventors

Nagasaki, Japan

Hiroyuki Tsutaya