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1. 发明专利

JPH03241212A CATALYST COMBUSTION DEVICE 失效
公开(公告)号：JPH03241212A
公开(公告)日：1991-10-28
申请号：JP3632090
申请日：1990-02-19
申请人： TOSHIBA CORP , JAPAN FUEL TECH
发明人： EGUCHI TOMOKI , OKAMURA OSAO
IPC分类号： F23D14/18 , B01J8/02 , F23D11/40
摘要： PURPOSE:To reduce a discharging of unburnt combustible gas and prevent an efficiency of combustion from being reduced by a method wherein a cross sectional area of a gas inlet part of a catalyst container is made smaller than a cross sectional area of a gas outlet port and formed to expand toward the gas outlet port. CONSTITUTION:A catalyst container 2 is comprised of a tapered pipe 11, and porous heat-resistant supporting members 12 and 13 closing both end openings capable of making a free passage of gas to constitute a gas inlet port and a gas outlet port, respectively. The tapered pipe 11 is formed such that a cross sectional area A of the gas inlet port, i.e. the supporting member 12 is smaller than a cross sectional area B of the gas outlet port, i.e. the supporting member 13 and the tapered pipe is formed to expand toward the supporting member 13 at the gas outlet port. In this way, the catalyst container 20 is formed as an expanding cylinder, thereby a tablet type combustion catalyst can be used as it is even in an application requiring a reduced pressure loss, resulting in that a discharging of the not-yet-ignited combustible gas is reduced and a combustion efficiency is prevented from being decreased.

2. 发明专利

JPH01107844A REFORMER 失效
公开(公告)号：JPH01107844A
公开(公告)日：1989-04-25
申请号：JP26369087
申请日：1987-10-21
申请人： TOSHIBA CORP , JAPAN FUEL TECH
发明人： FUJII ISAO
IPC分类号： B01J8/06 , H01M8/06
摘要： PURPOSE:To prevent breakage of heat conducting packed particles and sleeve pipe by separating an annular space between a reforming pipe and a sleeve pipe with perforated plates in a direction of the axis of the reforming pipe to a size permitting rearrangement of heat conducting packed particles corresponding to the displacement due to thermal expansion and contraction of the sleeve pipe. CONSTITUTION:An outside pipe 2a and an inside pipe 2b of a reforming pipe 2 construct a concentric double pipe structure interposing a reforming catalyst bed 3, forming a return path 13 at the top 12 of one end thereof, allowing fed fuel gas introduced into the outside pipe 2a to be converted to reformed gas when it passes through a catalyst bed 3 and to be discharged through the inside pipe 2b. Further, in a vessel 1 of the reformed, plural numbers of pipes 2 protected by a sleeve pipe 19 are located so as to set the head 12 of the return path in a combustion chamber 7. And, annular spaces 20a-20d between the pipe 2 and the pipe 19 contg. the heat conducting packed particles 9 are separated by perforated plates 8a-8l to a size permitting rearrangement enabling the heat conducting packed particles 9 to absorb the displacement due to thermal expansion and contraction of the pipe 19.

3. 发明专利

JPS6415132A REACTOR 失效
公开(公告)号：JPS6415132A
公开(公告)日：1989-01-19
申请号：JP17261587
申请日：1987-07-10
申请人： TOKYO INST TECH , ISHIKAWAJIMA HARIMA HEAVY IND , KOBE STEEL LTD , CHIYODA CHEM ENG CONSTRUCT CO , JAPAN FUEL TECH , MITSUBISHI KASEI TECH ENG , MITSUBISHI HEAVY IND LTD , MITSUBISHI PETROCHEM ENG
发明人： ECHIGO RYOZO , YOSHIZAWA YOSHIO , IKEDA MIKIO , AOKI MAMORU , SHIMIZU RYOSUKE , ONOMURA MASATERU , IWASA KOICHI , IDE YUICHI , YAMANA NOBORU
IPC分类号： B01J12/00 , B01J19/00 , B01J19/24 , C01B3/38
摘要： PURPOSE:To use a catalyst effectively and to obtain produced gas decomposed to a desired state inexpensively by separating a heatreceiving body to plural layers in the direction of gas stream and regulating an equivalent pore size or void of the heat receiving body at a heat radiating body side to a different value from that at a side separated from the heat radiating body. CONSTITUTION:A porous heat receiving body 4 deposited with a catalyst is separated into plural layers of heat receiving body 4a, 4b, 4c in a direction from an upstream side to a downstream side of a gas stream. The pore size of each heat receiving body 4a, 4b, 4c is arranged to be smallest in the heat receiving body 4a, somewhat larger in the heat receiving body 4b, and largest in the heat receiving body 4c, thus, the radiation absorbing capacity of the heat receiving body 4a is made larger than those of the heat receiving body 4b, 4c. As a result, the amt. of heat to be absorbed by the heat receiving body is increased at an inlet of feed gas 8, and the temp. of the heat receiving body 4a at the inlet of the feed gas 8 is elevated, so heating capacity for the feed gas 8 improved. By this constitution, the catalyst deposited to the heat receiving body 4 at the inlet of the feed gas 8 is used effectively, and produced gas decomposed to a desired state is obtd. inexpensively.

4. 发明专利

JPS62182523A REFORMING REACTOR 失效
公开(公告)号：JPS62182523A
公开(公告)日：1987-08-10
申请号：JP2451386
申请日：1986-02-06
申请人： JAPAN FUEL TECH , TOSHIBA CORP
发明人： EGUCHI TOMOKI , HOSONUMA AKIRA
IPC分类号： F23K5/00 , F23D14/18 , F23D14/68
摘要： PURPOSE:To eliminate preheating section for a mixture gas and provide compact construction of the whole of a reforming reactor by forming an oxidation combustion catalyst layer in a system to introduce a mixture gas of hydrocarbon family gas and steam into a catalyst layer for reforming and mixing a suitable amount of air to the mixture gas according to variation in load. CONSTITUTION:An oxidized combustion catalyst layer 4 is formed by filling an oxidation combustion catalyst to the inlet section of a reforming reaction tube 2 for introducing a mixture gas 5 of a hydrocarbon family gas and steam. Namely when a mixture gas 5 of a hydrocarbon family gas and steam is mixed with air 10 and they are passed through the oxidation combustion catalyst layer 4, the temperature of the mixture gas 5 of hydrocarbon gas and steam rises rapidly to near the reaction temperature through internal combustion reaction in the oxidation combustion catalyst layer 4. Next, steam reforming reaction is made by supply of heat from the high temperature combustion gas 8 which is introduced to the reforming catalyst layer 3 and obtained by a burner 7. An amount to fill the oxidation combustion catalyst can be smaller than the amount of inactive filling material which is conventionally used in the preheating section, so that it is possible to make the reforming reaction tube 2 short.

5. 发明专利

JPH03232704A REFORMER 失效
公开(公告)号：JPH03232704A
公开(公告)日：1991-10-16
申请号：JP2924490
申请日：1990-02-08
申请人： TOSHIBA CORP , JAPAN FUEL TECH
发明人： OKAMURA OSAO , MASUNAGA NOBUHIKO , EGUCHI TOMOKI
IPC分类号： C01B3/34
摘要： PURPOSE:To make an equipment compact and increase reforming efficiency by providing partition walls of double cylindrical shape, heat radiation bodies comprising a porous solid and catalytic bodies of double cylindrical shape in a cylindrical vessel to make possible of an effective utilization of heat with radiation heat transfer. CONSTITUTION:The aimed reformer is constructed by a pressure vessel 17, partition walls 21 of double cylindrical shape, catalytic bodies 22 of double cylindrical shape, heat-radiation bodies 16 composed of a porous material permeable of hot gas and a heating means for heating raw material gas permeating through said catalytic bodies 22 with the radiation heat from the heat radiation bodies. Said partition walls 21 are composed of an outer partition wall 21a and an inner partition wall 21b to divide the vessel to a heating room A-side and a modifying room B-side and simultaneously divide the heating room to an outer combustion room 1a and an inner combustion room 1b. Besides, said catalytic bodies 22 are composed of an outer catalytic body 22a and an inner catalytic body 22b and are permeated by raw material gas to afford the aimed reformed gas.

6. 发明专利

JPH02150613A REFORMING APPARATUS FOR CATALYST COMBUSTION 失效
公开(公告)号：JPH02150613A
公开(公告)日：1990-06-08
申请号：JP30089188
申请日：1988-11-30
申请人： TOSHIBA CORP , JAPAN FUEL TECH
发明人： OKAMURA OSAO , SHIRAIWA YOSHIZO
IPC分类号： F23K5/08 , B01J8/06 , C10G11/20
摘要： PURPOSE:To make the title apparatus free from damage of packed particles of a heat transfer packed-bed layer and of a sleeve tube and to perform reformation with a long lifetime and a high efficiency by providing a catalyst combustion element in a supply channel for supplying the mixture of a fuel gas and combustion air to a combustion chamber and by providing a stream straightening packed-bed layer of which the cross-sectional area is made larger than that of the catalyst combustion element. CONSTITUTION:Combustion air and a fuel gas introduced into an air chamber 44 and a gas chamber 48 of a pre-mixing chamber 39 from inlet tubes 45 and 49 respectively are introduced into a combustion air chamber 40 and a fuel gas chamber 41 through jet ports 42 and 46 and mixed, and the mixture enters a catalyst combustion chamber 38 and flows down to a combustion chamber 52 provided below. The cross-sectional area of the catalyst combustion chamber 38 is made smaller than that of a stream straightening packed-bed layer 53 so as to increase the flow speed of the burning gas and to prevent back fire onto the pre-mixing chamber 39 side. A catalyst bearing structure 37 is kept at a low temperature at which catalyst combustion is maintained. Inside the combustion chamber 52, the temperature of the combustion gas turns high and a large circulating stream is formed. The flow of the gas passes through the stream straightening packed-bed layer 53 having the larger cross-sectional area, is straightened thereby and heats uniformly reforming tubes 5 positioned below. Since it is unnecessary to provide a heat transfer packed-bed layer, the damage of packed particles does not occur and a reforming apparatus of high efficiency and long lifetime can be obtained.

7. 发明专利

JPS61275103A REFORMING APPARATUS 失效
公开(公告)号：JPS61275103A
公开(公告)日：1986-12-05
申请号：JP11594985
申请日：1985-05-29
申请人： TOSHIBA CORP , JAPAN FUEL TECH
发明人： FUJII ISAO , OKAMURA OSAO
IPC分类号： C01B3/38
摘要： PURPOSE:To reform feed gas with high safety and high efficiency for a long time by heating a specified vessel for a reforming apparatus housing a reforming catalyst bed with an electroconductive coil disposed to its outside and passing feed gas through the reforming vessel. CONSTITUTION:A reforming catalyst bed 15 is formed by packing a mixture of granular electroconductive material (e.g. graphite) 13, with catalyst particles 14 necessary for reforming on a perforated plate 12. A reforming pipe 18 is constructed by providing a heat insulating layer 16 comprising a bad conducting material to the outside periphery of the reforming catalyst bed, and the outside of the reforming pipe 18 is enclosed tightly with a vessel 17 for the reforming pipe comprising a bad conductor (e.g. glass fiber). Further, the outside of the vessel 17 is wound spirally with electroconductive coils 20 interposing a heat insulating material 19 comprising a bad conductor to construct thus a reforming apparatus. Then, feed gas is introduced through a feed gas introducing pipe 7 at a side of an end of the reforming pipe 18 to pass through the reforming catalyst bed 15. Simultaneously, high frequency current is fed to the electroconductive coil 20 via a high frequency generator 21 to heat the reactant and to cause reaction. After proceeding reforming reaction utilizing internal heat generation, reformed gas is discharged from a reformed gas outlet pipe 11.

8. 发明专利

JPS61267271A FUEL CELL POWER GENERATION SYSTEM 失效
公开(公告)号：JPS61267271A
公开(公告)日：1986-11-26
申请号：JP10772685
申请日：1985-05-20
申请人： TOSHIBA CORP , JAPAN FUEL TECH
发明人： YOSHIDA SHUICHI
IPC分类号： H01M8/04
摘要： PURPOSE:To reduce the cost of an fuel cell power generation system, by increasing the operation pressure of the system to a rated level while balancing the air pressure of an air supply blower and the outlet air pressure of an air processor with each other, to dispense with a compressor and a reservoir tank. CONSTITUTION:At the time of starting, air is fed from an air supply blower 6 to an auxiliary fuel unit 4, and the combustion exhaust gas of an auxiliary combustor 4 is fed to a high-pressure turbo-compressor 3 and a low-pressure turbo-compressor 1 through a mixer 5 to rotate the turbo-compressors. When the pressure of air discharged from the high-pressure turbo-compressor 3 and that of the air from the air supply blower 6 have thereafter balanced with each other so that their difference found out by a pressure difference detector 8 is smaller than a prescribed allowable value, this phenomenon is detected so that a controller 9 begins to operate, a control valve 7 is gradually opened, and the air discharged from the high-pressure turbo-compressor and that from the air supply blower are fed as burning air to the auxiliary combustor 4. After that, the operation of the air supply blower 6 is stopped so that the burning air for the auxiliary combustor 4 is fed only by the high-pressure turbo- compressor 3.

9. 发明专利

JPS61251501A REFORMER 失效
公开(公告)号：JPS61251501A
公开(公告)日：1986-11-08
申请号：JP9255785
申请日：1985-04-30
申请人： TOSHIBA CORP , JAPAN FUEL TECH
发明人： EGUCHI TOMOKI
IPC分类号： C01B3/38 , H01M8/06
摘要： PURPOSE:A mixture of exhaust gas from fuel cells and combustible gas is used and a reformer is composed of a high-temperature combustion catalyst bed, a low-temperature combustion catalyst bed and a heat-transfer packed bed, whereby the volume of the combustion catalysts are reduced to lower the costs, and the formation of hot spots is prevented. CONSTITUTION:The feedstock gas 5 is converted into reformed gas by passing through an inert thermoconductive packed bed 3 and the reformation catalyst bed 2 and the reformed gas is outlet as reformed gas 7 after passing through the inner tube 6. In the meantime, a gas mixture 4 for heating the reforming reactions, which is composed of exhaust air and combustible gas, is passed through the high-temperature combustion catalyst bed 10, the thermoconductive packed bed 9 and the low-temperature combustion catalyst bed 11 and let out as an exhaust gas. Thus, most part of the combustible gas is burnt in the high- temperature combustion catalyst layer 10 and the combustion is completed in the low- temperature combustion catalyst bed 11 which is provided on the place where the combustion gas becomes relatively low in its temperature. Thus, the amount of the catalysts necessary for combustion is saved by an amount corresponding to the thermoconductive packed bed 9. Moreover, since oxidative combustion does not occur in the packed bed 9, hot spots, namely local heating in the reforming tube are not formed by uneven packing of the catalyst.

10. 发明专利

JPS61250409A APPARATUS FOR CATALYTIC COMBUSTION 失效
公开(公告)号：JPS61250409A
公开(公告)日：1986-11-07
申请号：JP9255885
申请日：1985-04-30
申请人： TOSHIBA CORP , JAPAN FUEL TECH
发明人： EGUCHI TOMOKI
IPC分类号： F23C13/00 , H01M8/06
摘要： PURPOSE:To surely prevent a backfire and to make possible a stable catalytic combustion, by providing porous solid substances of high porosity and permeability on the introducing side of mixed gases. CONSTITUTION:Combustible gases 2 are introduced into a gas mixer 1 together with air or exhaust air 3 whose oxygen concentration is lower than that of the ordinary air. A gas mixture of the combustible gases 2, having being mixed in the gas mixer 1, and air or the exhaust air 3 are passed through permeable, porous solid substances 6 of extremely high porosity, causing almost no pressure drop, and then introduced into a catalytic combustion chamber 4. In the catalytic combustion chamber 4 the combustible gases 2 burn with air or the exhaust air 3 in the presence of combustion catalysts 41 and forwarded to gas users as high-temperature combustion gases. Backfires being thus prevented, and being also capable of a low-load operation, a stable catalytic combustion can be carried out together with low energy loss.

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