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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Iijima; Masaki
Address:
Tokyo, JP
No. of patents:
56
Patents:


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Patent Number Title Of Patent Date Issued
7790914 Method for dimethyl carbonate synthesis September 7, 2010
There is provided a catalyst for dimethyl carbonate synthesis which has a high conversion rate under the supercritical condition of CO.sub.2 and can be handled easily. The catalyst for dimethyl carbonate is obtained by loading SO.sub.4.sup.2- or PO.sub.4.sup.3- on a carrier composed of a
7766985 Coal drying method and equipment, method for aging reformed coal and aged reformed coal, and pro August 3, 2010
In drying coal to be used as fuel for a coal-fired boiler, the coal is dried at a temperature of 80 to 150.degree. C. by using combustion exhaust gas having passed through an air heater for the coal-fired boiler. Moreover, after medium-quality or low-quality coal is heated to a tempe
7744662 Coal drying method and equipment, method for aging reformed coal and aged reformed coal, and pro June 29, 2010
In drying coal to be used as fuel for a coal-fired boiler, the coal is dried at a temperature of 80 to 150.degree. C. by using combustion exhaust gas having passed through an air heater for the coal-fired boiler. Moreover, after medium-quality or low-quality coal is heated to a tempe
7674742 Catalyst for dimethyl carbonate synthesis March 9, 2010
There is provided a catalyst for dimethyl carbonate synthesis which has a high conversion rate under the supercritical condition of CO.sub.2 and can be handled easily. The catalyst for dimethyl carbonate is obtained by loading SO.sub.4.sup.2- or PO.sub.4.sup.3- on a carrier composed of a
7524341 Coal drying method and equipment, method for aging reformed coal and aged reformed coal, and pro April 28, 2009
In drying coal to be used as fuel for a coal-fired boiler, the coal is dried at a temperature of 80 to 150.degree. C. by using combustion exhaust gas having passed through an air heater for the coal-fired boiler. Moreover, after medium-quality or low-quality coal is heated to a tempe
6924399 Method of manufacturing dimethyl ether August 2, 2005
Dimethyl ether is obtained with at low cost by transporting methanol under room temperature and atmospheric pressure from the methanol producing district to the dimethyl ether consuming district or its neighboring district by converting the raw material containing the transported met
6883327 Method and system for recovering carbon dioxide April 26, 2005
To provide a method for recovering carbon dioxide, in which thermal energy for regenerating a CO.sub.2 absorbing solution and power for compressing the recovered CO.sub.2 are supplied, and high thermal efficiency is achieved, and a system therefor. A system for recovering carbon dioxide
6782714 Plant and method for producing liquefied natural gas August 31, 2004
A plant for producing liquefied natural gas comprises a carbon dioxide recovery apparatus for natural gas absorbing and removing carbon dioxide from natural gas, a liquefying apparatus having a steam turbine, for liquefying the natural gas from which carbon dioxide has been removed by
6764530 Exhaust heat utilization method for carbon dioxide recovery process July 20, 2004
An exhaust heat utilization method for a carbon dioxide recovery process comprises heating returning hot water by at least one heat exchange selected from heat exchange with the regenerated absorbing liquid after heat exchange, heat exchange with carbon dioxide exhausted from the reg
6726852 Method of manufacturing synthesis gas April 27, 2004
A method of manufacturing a synthesis gas containing hydrogen and carbon monoxide comprises steps of removing only hydrogen sulfide from a natural gas containing hydrogen sulfide and carbon dioxide by permitting the natural gas to pass through a hydrogen sulfide-removing device filled wi
6689332 Process for removing carbon dioxide from combustion gases February 10, 2004
A process for removing CO.sub.2 from a combustion gas which comprises bringing a combustion gas containing oxygen and CO.sub.2 and a CO.sub.2 absorbent solution into contact at the atmospheric pressure, thereby allowing the CO.sub.2 absorbent solution to absorb CO.sub.2 from the comb
6649291 Method for driving a fuel cell vehicle and fuel cell vehicle November 18, 2003
A fuel is supplied to a reformer provided with a hydrogen-permeable separation membrane for selectively allowing hydrogen to pass through to generate hydrogen. The generated hydrogen is supplied to a fuel cell, and a drive unit is operated by electric power obtained by the fuel cell to
6582671 Method for reducing oxygen content in a boiler exhaust gas June 24, 2003
A process is provided for producing a nitrogen gas, useful in the petroleum industry, by combusting fuel with air in a "once through"-type boiler and injecting a supplemental fuel, such as natural gas, into the exhaust gas at a location just before a combustion catalyst that promotes the
6504068 Method for converting a plastic waste into oil in a stainless steel reactor January 7, 2003
A method of converting a plastic waste into oil by decomposing the plastic waste by a reaction using water in a supercritical or near supercritical region as a reaction medium. In this method, the reaction is conducted by using a tubular continuous reactor. The present invention further
6500397 Method for removing carbon dioxide from combustion exhaust gas December 31, 2002
There are disclosed a method for removing CO.sub.2 from a combustion exhaust gas which comprises the step of bringing the combustion exhaust gas under atmospheric pressure into contact with an aqueous solution of a hindered amine selected from the group consisting of 2-amino-2-methyl
6489370 Method of manufacturing a synthesis gas to be employed for the synthesis of gasoline, kerosene a December 3, 2002
A method for manufacturing a synthesis gas, which makes it possible to procure CO.sub.2 inside a synthesis gas-manufacturing plant utilizing the Fisher-Tropsch reaction system, thereby enabling the synthesis gas to be cheaply manufactured by way of the Fisher-Tropsch reaction system with
6486218 Method of manufacturing methanol November 26, 2002
A natural gas having steam and carbon dioxide added thereto is supplied into a reaction tube of a reformer provided with the reaction tube and a combustion radiation section for heating the reaction tube by combustion of a fuel so as to carry out a reaction between the hydrocarbon contai
6485547 Exhaust gas cooling system November 26, 2002
An exhaust gas cooling system includes, an exhaust gas-processing tower provided at a lower portion with an inlet port for an exhaust gas containing moisture and also provided at an upper interior space with a spray member, a circulating passageway for circulating exhaust gas-process
6475409 Method of manufacturing synthesis gas November 5, 2002
A method of manufacturing a synthesis gas, which makes use of a synthesis plant comprising a reformer having a steam reforming reaction tube, a combustion radiation portion provided around the reaction tube, for heating the reaction tube, and a convection portion communicating the co
6423282 Method for the regeneration of an acid gas absorbing fluid containing methydiethanolamine and a July 23, 2002
A method for the regeneration of an acid gas absorbing fluid which comprises bringing a gaseous mixture containing an acid gas such as, for example, gasified coal gas, synthesis gas, coke oven gas, petroleum gas, natural gas, and the like, into contact with an absorbing fluid containing
6381943 High-efficiency power generating method May 7, 2002
In a high-efficiency power generating method to generate electric power by an exhaust gas re-combustion system using at least a gas turbine, a boiler, and a steam turbine, crude oil or heavy oil is heated with steam obtained from the boiler; the crude oil or heavy oil is distilled under
6352674 Apparatus for converting a plastic waste into oil March 5, 2002
A method of converting a plastic waste into oil by decomposing the plastic waste by a reaction using water in a supercritical or near supercritical region as a reaction medium. In this method, the reaction is conducted by using a tubular continuous reactor. The present invention further
6298651 Power generation method and power generating apparatus October 9, 2001
A method and an apparatus for power generation, by which high-efficiency power generation is achieved by utilizing a boiler-oriented fuel such as inexpensive coal, heavy oil and waste plastic, and by further utilizing a gas-turbine-oriented fuel in some cases, without exerting bad effect
6274108 Recovery of carbon dioxide from combustion exhaust gas August 14, 2001
A process is provided for removing carbon dioxide out of combustion exhaust gas by scrubbing the exhaust gas with an aqueous solution of monoethanolamine in a scrubber, and regenerating the carbon dioxide-loaded aqueous solution of monoethanolamine in a regenerator. The process is pr
6223522 Combined cycle power plant and method using both light and heavy oils May 1, 2001
A light oil component is mixed with a heavy oil component so that the kinematic viscosity is not higher than 800 centistokes, the light oil component and the heavy oil component are separated from each other after the mixed oil is transported to a power generation apparatus, and power
6165360 Method and device for dehydrating heavy oils December 26, 2000
A method and a device for dehydrating a heavy oil wherein an emulsion of water and a heavy oil is mixed in a stirring chamber together with a suitable amount of an emulsion breaker, the mixture is subjected to separation in a two-phase separation tank to a heavy oil-rich component an
6141956 Combined power generation plant November 7, 2000
In a combined power generation plant, an exhaust gas boiler (2) consists of a high-pressure reheat type steam system, in which fuel is supplied to this exhaust gas boiler 2, and the supplied fuel undergoes catalytic reaction in combustion catalysis sections (NOx removal sections) 18 and
6117404 Apparatus and process for recovering basic amine compounds in a process for removing carbon diox September 12, 2000
The present invention provides a process for recovering a basic amine compound which comprises the steps of (a) supplying a CO.sub.2 -containing gas to a carbon dioxide absorption unit in which an absorbing solution, which contains a basic amine compound, absorbs carbon dioxide; (b)
6107532 Process and system for converting plastics waste into oil August 22, 2000
Disclosed is an economical process for treating a large amount of plastics waste in which thermoplastics, crosslinked plastics, thermosetting plastics or a mixture thereof can be continuously and rapidly degraded and converted into oil without sorting various types of plastics waste.
6068671 Coal drying method and equipment, method for aging reformed coal and aged reformed coal, and pro May 30, 2000
In drying coal to be used as fuel for a coal-fired boiler, the coal is dried at a temperature of 80 to 150.degree. C. by using combustion exhaust gas having passed through an air heater for the coal-fired boiler. Moreover, after medium-quality or low-quality coal is heated to a tempe
6051161 Method for the removal of carbon dioxide present in gases and absorbent April 18, 2000
This invention provides a method for the removal of carbon dioxide present in gases which comprises bringing a CO.sub.2 -containing gas into contact with an aqueous solution containing at least one amine compound of the general formula ##STR1## wherein R.sup.1 to R.sup.8 may be t
6036931 Method for removing carbon dioxide from combustion exhaust gas March 14, 2000
There are disclosed a method for removing CO.sub.2 from a combustion exhaust gas which comprises the step of bringing the combustion exhaust gas under atmospheric pressure into contact with an aqueous solution of a hindered amine selected from the group consisting of 2-amino-2-methyl
6033448 Method for the manufacture of a low water content gasified fuel from raw fuels March 7, 2000
The present invention provides a method for manufacturing a gasified fuel. The fuel is gasified by partial oxidation of a fuel layer obtained from a raw fuel which contains water and has decreased viscosity. The fuel layer is subjected to partial oxidation by being exposed to oxygen, pro
5989436 Method and device for dehydrating heavy oils November 23, 1999
A method and a device for dehydrating a heavy oil wherein an emulsion of water and a heavy oil is mixed in a stirring chamber together with a suitable amount of an emulsion breaker, the mixture is subjected to separation in a two-phase separation tank to a heavy oil-rich component an
5904908 Method for the removal of carbon dioxide present in gases May 18, 1999
This invention provides a method for the removal of carbon dioxide present in gases which comprises bringing a CO.sub.2 -containing gas into contact with an aqueous solution containing at least one amine compound of the general formula [1] ##STR1## wherein R.sup.1 to R.sup.8 may
5895634 Desulfurization and decarbonation process April 20, 1999
This invention provides a process for effecting desulfurization and decarbonation in two stages. A gas containing sulfur oxides and carbon dioxide is first treated in a desulfurization step so as to cause sulfur oxides to be absorbed in the form of calcium-sulfur oxide compounds; the
5878675 Flue gas desulfurizer, boiler equipment and thermal electric power generation equipment March 9, 1999
A flue gas desulfurizer having an absorption tower for bringing untreated flue gas into gas-liquid contact with an absorbent slurry, wherein there is provided heat recovery means for recovering heat from the flue gas passing through the flue gas inlet section of the absorption tower prio
5853680 Process for the removal of highly concentrated carbon dioxide from high-pressure natural gas December 29, 1998
This invention relates to a process for removing highly concentrated CO.sub.2 from high-pressure natural gas and recovering it in a high-pressure state.This process comprises the absorption step of bringing high-pressure natural gas having a CO.sub.2 partial pressure of 2 kg/cm.sup.2 or
5798087 Method of producing gypsum August 25, 1998
After hydrogenation and desulfurization treatment of raw fuel in the desulfurization unit 1, the product is separated in the acidic gas separator 2 into fuel and a hydrogen sulfide-containing gas, and the hydrogen sulfide-containing gas is subjected to combustion together with air in
5750083 Method for the removal of hydrogen sulfide present in gases May 12, 1998
This invention relates to methods for the removal of hydrogen sulfide from various gases containing hydrogen sulfide. In order to remove hydrogen sulfide, an aqueous solution containing a di(lower alkyl)amino-(lower alkanol) or triethylenediamine is used. In order to remove hydrogen
5744110 Method for the removal of carbon dioxide from combustion exhaust gas April 28, 1998
This invention provides a method for the removal of CO.sub.2 present in combustion exhaust gas which comprises bringing combustion exhaust gas at atmospheric pressure into contact with a mixed aqueous solution containing 100 parts by weight of an amino acid metal salt (X), 1 to 25 parts
5736115 Process for the removal of carbon dioxide from gases April 7, 1998
This invention relates to a process for the removal of carbon dioxide from gases which comprises the carbon dioxide absorption step of bringing a gas having a carbon dioxide partial pressure in the range of 0.3 to 50 atmospheres (absolute pressure) into gas-liquid contact with an absorbi
5700437 Method for removing carbon dioxide from combustion exhaust gas December 23, 1997
A method for removing carbon dioxide from a combustion exhaust gas under atmospheric pressure by the use of a mixed solution of a specific amine compound X having an alcoholic hydroxyl group and a primary amino group which is bonded to a tertiary carbon atom having two unsubstituted alky
5648053 Process for removing carbon dioxide and nitrogen oxides from combustion gases July 15, 1997
A process for removing both CO.sub.2 and NO.sub.x from combustion gases consists, first, in cooling a combustion gas to 50 to 100.degree. C. and adding ozone to oxidize NO in the combustion gas to NO.sub.2. Then in a CO.sub.2 removal step, the gas is brought into contact with an aqueous
5618506 Process for removing carbon dioxide from gases April 8, 1997
This invention relates to the process for removing CO.sub.2 from CO.sub.2 -containing gas such as combustion gas. For example, it is the process for removing CO.sub.2 from combustion gas through the contact of the gas at the atmospheric pressure with an aqueous solution of an amine repre
5609840 Method for the removal of hydrogen sulfide present in gases March 11, 1997
This invention relates to methods for the removal of hydrogen sulfide from various gases containing hydrogen sulfide. In order to remove hydrogen sulfide, an aqueous solution containing a di(lower alkyl)amino-(lower alkanol) or triethylenediamine is used. In order to remove hydrogen
5603908 Process for removing carbon dioxide from combustion gases February 18, 1997
A process for removing CO.sub.2 from a combustion gas which comprises removing CO.sub.2 from the combustion gas through contact of an aqueous hindered amine solution used as a CO.sub.2 absorbent solution with the combustion gas at atmospheric pressure and then, in a regeneration column,
5603377 Heat pipe and gas-liquid contacting apparatus capable of heat exchange using the heat pipes and February 18, 1997
A heat pipe includes: a pipe barrel; and a large number of fins disposed on the peripheral surface of the pipe barrel at least on either a heat collecting section side or a radiating section side, each of the fins is attached to the pipe barrel on a plane perpendicular to the axis of the
5536454 Apparatus for gas-liquid contact July 16, 1996
An apparatus for gas-liquid contact in which tubular structure fillers having a cross section of any of various shapes and having straight tubular portions are arranged in a substantially vertical direction in the form of plural steps so that the gas-liquid contact surfaces of the fi
5405595 Process for the disposal of carbon dioxide April 11, 1995
A process for the disposal of carbon dioxide in deep sea, which comprises compressing and dehumidifying gaseous carbon dioxide to be disposed of, passing the so compressed carbon dioxide gas through a cold sea water region where a temperature condition enough to liquefy the compressed
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