WO2005118467A1 - 燃料処理装置 - Google Patents
燃料処理装置 Download PDFInfo
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- WO2005118467A1 WO2005118467A1 PCT/JP2004/007625 JP2004007625W WO2005118467A1 WO 2005118467 A1 WO2005118467 A1 WO 2005118467A1 JP 2004007625 W JP2004007625 W JP 2004007625W WO 2005118467 A1 WO2005118467 A1 WO 2005118467A1
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- WIPO (PCT)
- Prior art keywords
- heat
- fuel
- insulating material
- combustion chamber
- inorganic
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- C—CHEMISTRY; METALLURGY
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/04—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds
- B01J8/0446—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds the flow within the beds being predominantly vertical
- B01J8/0461—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds the flow within the beds being predominantly vertical in two or more cylindrical annular shaped beds
- B01J8/0465—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds the flow within the beds being predominantly vertical in two or more cylindrical annular shaped beds the beds being concentric
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
- C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
- C01B3/384—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts the catalyst being continuously externally heated
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6269—Curing of mixtures
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/6303—Inorganic additives
- C04B35/6316—Binders based on silicon compounds
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
- H01M8/0625—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material in a modular combined reactor/fuel cell structure
- H01M8/0631—Reactor construction specially adapted for combination reactor/fuel cell
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00477—Controlling the temperature by thermal insulation means
- B01J2208/00495—Controlling the temperature by thermal insulation means using insulating materials or refractories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00504—Controlling the temperature by means of a burner
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
- C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
- C01B2203/0233—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming step
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
- C01B2203/0811—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel
- C01B2203/0816—Heating by flames
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0081—Uses not provided for elsewhere in C04B2111/00 as catalysts or catalyst carriers
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
- C04B2235/3445—Magnesium silicates, e.g. forsterite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
- C04B2235/3454—Calcium silicates, e.g. wollastonite
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- C—CHEMISTRY; METALLURGY
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention relates to a fuel processing apparatus for processing a raw material gas to obtain a fuel gas to be supplied to a fuel cell, and more particularly to a fuel processing apparatus provided with an adiabatic formed body for adiabatically insulating a combustion part or thermally isolating a combustion part. It concerns the device.
- a fuel processor that generates hydrogen for polymer electrolyte fuel cells
- the condition is to maintain and stabilize the combustion part, catalyst layer, heat exchange part, etc. of the equipment at high temperatures from 100 ° C to 800 ° C or more.
- a non-combustible, heat-resistant, and heat-insulating molded body having a non-combustible, heat-resistant, and heat-insulating property is fitted and inserted into the combustion section, catalyst layer, heat exchange section, etc. of the fuel processor, according to their shape and structure. Or need to be coated.
- the present invention relates to the technical problems described above, has high heat resistance and heat insulating properties, has good moldability, is strong against external impact, and can be easily fixed to a fuel processing apparatus. apparatus It is an object of the present invention to provide a fuel processing apparatus provided with a heat-insulating molded body that can easily fill a narrow space or the like without generating a gap.
- a fuel processing apparatus 1 processes a raw material gas G to reform it into a fuel gas J containing hydrogen as a main component.
- the fuel processing device 1 includes the combustion chamber 13, the first primary heat insulating material 17, and the secondary heat insulating material 19, so that the first primary heat insulating materials 17 and 2 Combined with the secondary heat insulator 19, the solid primary heat insulator 17 with high heat insulation prevents combustion heat from leaking from the combustion chamber 13 to the outside of the device, and sets the combustion temperature in the combustion chamber 13 to an appropriate value. It can be maintained, and the cloth-like secondary insulation 19 covers and insulates the outside of the solid first primary insulation 17 and reinforces the insulation performance of the first primary insulation 17, and furthermore, The first primary heat insulating material 17 can be protected from external impact force.
- the secondary heat insulating material 19 covers the outside of the first primary heat insulating material 17 only when the secondary heat insulating material 19 directly covers the outside of the first primary heat insulating material 17.
- the concept includes the case where there is an inclusion between the heat insulating material 19 and the first primary heat insulating material 17 and the secondary heat insulating material 19 covers the outside of the inclusion.
- a first primary heat insulating material 17 a mixture containing silica'alumina-based fine particle powder is blended and foamed.
- An inorganic foam 37A cured and cured is used; as the secondary heat insulating material 19, a secondary heat insulating molded body 39 formed from inorganic fibers may be used.
- the fuel processing apparatus 1 uses the inorganic foam 37A and the secondary heat-insulating molded body 39, the fuel processing apparatus 1 combines the inorganic foam 37A and the secondary heat-insulating molded body 39 to provide an excellent Inorganic foam 37A that has heat resistance and good heat insulation at high temperatures and can be integrally molded prevents combustion heat from leaking from the combustion chamber 13 to the outside of the device, and maintains the combustion temperature in the combustion chamber 13 at an appropriate value.
- the secondary heat-insulating molded body 39 which has good workability and strength, can insulate the outside of the inorganic foam 37A with insufficient strength and reinforce the heat insulation performance of the inorganic foam 37A.
- the inorganic foam 37A can be protected from external impact.
- the fuel processing apparatus 1 in the fuel processing apparatus, for example, as shown in Fig. 1, as the first primary heat insulating material 17, a mixture containing silica-based fine particle powder is mixed and compressed.
- the molded inorganic porous body 37B is used;
- the secondary heat insulator 19 a secondary heat-insulated molded article 39 molded from inorganic fibers may be used.
- the fuel processing apparatus 1 uses the inorganic porous body 37B and the secondary heat-insulating molded body 39, the fuel processing apparatus 1 combines the inorganic porous body 37B and the secondary heat-insulating molded body 39 to provide an excellent
- the inorganic foam 37A which has heat resistance and good heat insulation at high temperatures, prevents combustion heat from leaking from the combustion chamber 13 to the outside of the device, and can maintain the combustion temperature in the combustion chamber 13 at an appropriate value.
- another fuel processing apparatus 1 treats a raw material gas G to reform it into a fuel gas J containing hydrogen as a main component, as shown in FIG. 1, for example.
- a combustion chamber 13 that generates heat used for the reforming; a first solid heat insulating material 17 that insulates the combustion chamber 13 from the outside; a combustion chamber 13 and a fuel processing apparatus And a second primary heat insulating material 18 in the form of a cloth that insulates between other parts in 1.
- the fuel processing device 1 includes the combustion chamber 13, the first primary heat insulator 17, and the second primary heat insulator 18, so that the first primary heat insulator Combination of 17 and the second primary heat insulator 18 prevents the heat of combustion from leaking from the combustion chamber 13 to the outside of the device by the first primary heat insulator 17 and adjusts the combustion temperature of the combustion chamber 13 to an appropriate value. Maintain and insulate between the combustion chamber 13 and the other parts of the fuel processor 1 by the second primary heat insulator 18, maintain the combustion temperature of the combustion chamber 13 at an appropriate value, and maintain the other parts. Can be set to a low temperature suitable for other parts.
- Insulation of the combustion chamber 13 against the outside is performed by a solid first primary heat insulating material 17 having high heat insulation performance and heat resistance performance, and heat insulation between the combustion chamber 13 and other parts,
- the first primary heat insulator 17 and the second primary heat insulator 18 are inserted into the space formed between the combustion chamber 13 and the other parts and have flexibility. Efficient heat insulation can be performed by properly using the next heat insulating material 18.
- the other parts in the fuel processor 1 are the combustion chamber 1 in the combustion fuel processor 1. A part that requires a temperature lower than 3.
- another fuel processing apparatus 1 processes a raw material gas G to reform it into a fuel gas J containing hydrogen as a main component, as shown in Fig. 1, for example.
- the fuel processing apparatus 1 includes: a combustion chamber 13 that generates heat used for the reforming; and a first solid heat insulating material 17 that insulates the combustion chamber 13 from the outside;
- the fuel processing device 1 includes the combustion chamber 13, the first primary heat insulating material 17, and uses the inorganic foam 37A as the first primary heat insulating material 17.
- the inorganic foam 37A which has excellent heat resistance and good heat insulating properties at high temperatures and can be integrally molded, prevents combustion heat from leaking from the combustion chamber 13 to the outside of the device, and sets the combustion temperature in the combustion chamber 13 to an appropriate value. Can be maintained at S.
- another fuel processing apparatus 1 treats a raw material gas G to reform it into a fuel gas J containing hydrogen as a main component, as shown in Fig. 1, for example.
- a combustion chamber 13 that generates heat used for the reforming
- a cloth-like second primary heat insulating material that insulates between the combustion chamber 13 and other parts in the fuel processing device 1.
- the second primary heat insulating material an inorganic short fiber felt 38A obtained by molding a mixture containing inorganic short fibers and a heat-expanding material into a felt shape is used.
- the fuel processing apparatus 1 includes the combustion chamber 13 and the second primary heat insulator 18; as the second primary heat insulator 18, excellent heat resistance and good heat resistance are provided.
- the use of inorganic short fiber felt 38A which has thermal insulation properties at extremely high temperatures, insulates the combustion chamber 13 from the rest of the fuel processor 1 and maintains the combustion temperature in the combustion chamber 13 at an appropriate value.
- the temperature of the other part can be set to a lower temperature suitable for the other part. Insulation between the combustion chamber 13 and other parts is inserted into the space formed between the combustion chamber 13 and other parts. Since it is performed with the inorganic short fiber felt 38A that expands and expands, efficient heat insulation can be performed.
- the fuel processing device includes: a combustion chamber; a first primary heat insulating material; Since the primary heat insulating material is provided, the solid primary heat insulating material with high heat insulation reduces the leakage of combustion heat to the outside of the combustion chamber power unit and maintains the combustion temperature in the combustion chamber at an appropriate value.
- the cloth-like secondary insulation can be used to cover and insulate the outside of the solid primary insulation, reinforce the insulation performance of the primary primary insulation, and further improve the primary primary insulation. Insulation can be protected from external impact.
- FIG. 1 is a sectional view showing a schematic configuration of a fuel reformer 1 as a fuel processing device according to an embodiment of the present invention.
- the substantially columnar fuel reformer 1 is installed vertically, and includes a combustion material introduction section 11, a burner 12 (a combustion flame is shown by a dashed line), a combustion chamber 13, and a reforming section.
- Quality catalyst layer 14, shift catalyst layer 15, selective oxidation catalyst layer 16, first primary heat insulating portion 17, second primary heat insulating portion 18, secondary heat insulating portion 19, partition 41, A partition 42, a partition 43, a partition 44, a partition 45, a partition 46, and a partition 47 are provided.
- These components other than the combustion material introduction section 11 and the secondary insulation section 19 are housed in the cylindrical secondary insulation section 19.
- the combustion raw material introduction section 11 is provided at the upper center of the fuel reformer 1, and has a raw material introduction port 31.
- Combustion materials (combustion gas D and combustion air E) are introduced from the material introduction port 31.
- the burner 12 is connected to the opening 3 formed at the upper center of the fuel reformer 1 and directly below the combustion material introduction section 11, and is suspended along the central axis of the fuel reformer 1 for combustion.
- Burn gas D is introduced from the combustion raw material introduction section 11 .
- the combustion chamber 13 has a cylindrical combustion cylinder 13A as a peripheral wall surrounding the combustion cylinder 13A, and houses the burner 12. The combustion chamber 13 burns the combustion gas D with the burner 12 and generates heat used for reforming the raw material gas G.
- the reforming catalyst layer 14 has an annular shape and is arranged outside the combustion cylinder 13A (outside in the radial direction of the fuel reformer 1).
- the reforming catalyst layer 14 is directly sandwiched between the partition walls 41 on the inside and the partition wall 42 on the outside, and is housed between the partition walls 41 and 42.
- the first primary heat-insulating section 17 is a solid first primary heat-insulating molded body 37 obtained by molding the first primary heat-insulating material. Since the first primary heat-insulating molded body 37 is solid, it has high brittle heat insulation and heat resistance. Since the first primary heat-insulating molded body 37 is solid, it is not tight enough to form. It is not suitable for filling small filling spaces. Therefore, the first primary heat-insulating molded body 37 is filled in a large filling space below the fuel reformer 1 as shown in the figure.
- the first primary heat-insulating molded body 37 is formed into (1) an inorganic foamed body 37A, (2) an inorganic porous body 37B, and an inorganic foamed body 37A according to the composition of the first primary heat-insulating material as described later. And a first heat insulating material for forming the inorganic porous body 37B in a block-like combination and molded into (3) an inorganic combination body 37C.
- the first primary heat insulating portion 17 has a cylindrical shape having a cylindrical concave portion 20 at an upper portion thereof, and a lower portion of a secondary heat insulating molded body 39 and a lower portion of an inner wall surface, which will be described later, are provided at a lower portion of the fuel reformer 1. It is arranged in contact with. The lower part of the combustion chamber 13 and the lower part of the reforming catalyst layer 14 are housed in the recess 20.
- the concave portion 20 is arranged in contact with the outer peripheral surface 43A of the partition 43 or with a gap of about 1 mm from the outer peripheral surface 43A. That is, the secondary heat-insulating molded body 39 covers the outside of the first primary heat-insulating portion 17 to perform heat insulation.
- the second primary heat-insulating section 18 is different from the first primary heat-insulating material forming the first primary heat-insulating molded body 37, and is formed of a cloth-shaped second primary heat-insulating material. This is the primary heat-insulating molded body 38 of No. 2.
- the heat-insulated molded body is cloth-shaped, the heat-insulated molded body has a fibrous structure and can be freely deformed, and the length in the thickness direction is significantly shorter than the length in the vertical and horizontal directions. It means that the components are stable and do not deteriorate or scatter during deformation.
- the second primary heat-insulating molded body 38 Since the second primary heat-insulating molded body 38 is cloth-like, it has flexibility and can easily be inserted into a narrow filling space having a large narrowing ratio (a ratio between the insertion length and the width of the filling opening) in which the filling opening is narrow. Can be filled.
- the second primary heat-insulating molded body 38 is an inorganic short fiber felt 38A formed into an annular shape, and is located outside the reforming catalyst layer 14 (radially outside the fuel reformer 1). It is arranged above the primary heat insulating part 17.
- the inorganic short fiber felt 38A is directly sandwiched between the partition walls 43 on the inside and the partition wall 44 on the outside, and is housed between the partition walls 43 and 44.
- the shift catalyst layer 15 has an annular shape, and is arranged outside the second primary heat insulating portion 18 (radially outside the fuel reformer 1).
- the shift catalyst layer 15 is directly sandwiched between partition walls 45 on the inside and the partition wall 45 on the outside, and is accommodated between the partition walls 44.
- the selective oxidation catalyst layer 16 has an annular shape and is arranged outside the shift catalyst layer 15 (outside in the radial direction of the fuel reformer 1).
- the selective oxidation catalyst layer 16 is formed between the partition 46 and the vertical portion 47A of the partition 47. It is stored in between.
- the secondary heat-insulating molded body 39 is arranged outside the selective oxidation catalyst layer 16.
- the secondary heat-insulating molded body 39 is arranged in contact with the outside of the vertical portion 47A of the partition wall 47.
- the partition walls 41-47 should be made of stainless steel plate.
- the secondary heat insulating part 19 is a secondary heat insulating molded body 39 made of a secondary heat insulating material of short fiber heat insulating material and having a substantially cylindrical container structure. As described above, the burner 12 and the like except the combustion material introduction part 11 are used. The elements of fuel reformer 1 are housed inside.
- the fuel reformer 1 further includes a combustion exhaust gas passage 21, a raw material gas passage 22, and a reformed gas passage.
- a pipe-shaped combustion exhaust gas outlet 32, a raw material gas supply port 33, a reformed gas outlet 34, and a selective oxidation air supply port 35 penetrate through the side wall surface of the secondary insulation molded body 39 of the container structure. A hole is provided.
- the combustion exhaust gas passage 21 is formed in an annular shape between the combustion cylinder 13A and the partition wall 41, and further contacts the ceiling 36 of the secondary heat insulating unit 19 at the upper part of the fuel reformer 1. It is formed in a thin disk shape just below the horizontal portion 47B of the partition wall 47.
- the combustion exhaust gas F of the raw material gas G burned by the burner 12 passes through the combustion exhaust gas passage 21 and is exhausted from the combustion exhaust gas outlet 32 to the outside of the fuel reformer 1.
- the combustion exhaust gas F heats the reforming catalyst layer 14 while passing through the combustion exhaust gas passage 21, and the heated reforming catalyst layer 14 is in the range of 300 ° C to 800 ° C. .
- a part of the raw material gas passage 22 passes directly below the disk-shaped combustion exhaust gas passage 21, and the combustion exhaust gas F is supplied to the raw material gas before contacting the reforming catalyst layer 14.
- Preheat gas G is formed in an annular shape between the combustion cylinder 13A and the partition wall 41, and further contacts the ceiling 36 of the secondary heat insulating unit 19
- the source gas passage 22 is formed above the fuel reformer 1 and directly below the combustion exhaust gas passage 21.
- the source gas flow path 22 has an annular flow path 22A and an annular flow path 22B in the middle thereof.
- the raw material gas G descends between the selective oxidation catalyst layer 16 and the shift catalyst layer 15, and heat exchange is performed between the raw material gas G and the selective oxidation catalyst layer 16 via the partition wall 46.
- the raw material gas G passes through the heat exchange section 25 and is preheated by the selective oxidation catalyst layer 16.
- the raw material gas G is further inverted and rises between the selective oxidation catalyst layer 16 and the shift catalyst layer 15, and heat exchange between the raw material gas G and the shift catalyst layer 15 passes through the partition wall 45.
- the raw material gas G passes through the heat exchange section 26 where it is performed, and is preheated by the shift catalyst layer 15.
- the source gas G to which the water H has been added enters the source gas channel 22 from the source gas supply port 33,
- the raw material gas is supplied to the reforming catalyst layer 14 through the flow path 22.
- the reformed gas flow path 23 includes an annular flow path 23A between the first primary heat insulating portion 17 and the reforming catalyst layer 14, and further includes a flow path formed above the shift catalyst layer 15. It is configured to include a passage 23B, a passage 23C formed below the shift catalyst layer 15 and the selective oxidation catalyst layer 16, and a passage 23D formed above the selective oxidation catalyst layer 16.
- the shift catalyst layer 15 and the selective oxidation catalyst layer 16 also form part of the reformed gas channel 23.
- the raw material gas G and the water H pass through the heat exchange section 25 and the heat exchange section 26, which are the raw gas flow path 22 interposed between the selective oxidation catalyst layer 16 and the shift catalyst layer 15, for 100 times. Preheated from ° C to 500 ° C.
- the raw material gas G is reformed by the reforming reaction in the reforming catalyst layer 14 and mainly consists of H and C ⁇ .
- the reformed gas M is sent from the reforming catalyst layer 14 to the shift catalyst layer 15 through the flow paths 23A and 23B, and C ⁇ in the reformed gas M is shifted through the shift catalyst layer 15 by a shift (reforming) reaction. , H and CO, and C ⁇ in the reformed gas M decreases.
- Reformed gas M is sent from the reforming catalyst layer 14 to the shift catalyst layer 15 through the flow paths 23A and 23B, and C ⁇ in the reformed gas M is shifted through the shift catalyst layer 15 by a shift (reforming) reaction. , H and CO, and C ⁇ in the reformed gas M decreases.
- the reformed gas M from which CO has been removed is discharged from the reformed gas outlet 34 to the outside of the fuel reformer 1 through the flow path 23D. Further, the reformed gas M is sent to a polymer electrolyte fuel cell (not shown) as a fuel gas J mainly containing H, and
- the first primary heat-insulating section 17 includes a high-temperature section, that is, (1) a combustion chamber 13, (2) a reforming catalyst layer 14, and heat exchange between the combustion exhaust gas F and the reforming catalyst layer 14 forms a partition wall 41. (3) The heat of the heat exchange unit 24 is prevented from escaping to the outside (outside of the fuel reformer 1, the same applies hereinafter) (the first primary heat insulation).
- the second primary heat-insulating section 18 heat-insulates and holds the radially outer periphery of the high-temperature section, and has a substantially cylindrical high-temperature section and an annular low-temperature section located around the high-temperature section, that is, (1) the shift catalyst.
- the low temperature section is another part in the fuel processor of the present invention.
- the low temperature part is the high temperature part
- the temperature is higher than outside air where the temperature is relatively lower.
- the secondary heat insulating portion 19 is formed in a cylindrical shape so as to constitute the outer wall of the fuel reformer 1, and insulates the outside of the first primary heat-insulated molded body 37, so that heat is transferred outside the fuel reformer 1. Do not escape from the surface, do as you like (secondary insulation).
- the first primary heat insulation means that the heat of the high temperature part where the combustion chamber 13 and the like does not escape to the outside as described above. Insulates and thermally separates the high temperature part such as the combustion chamber 13 from the low temperature part surrounding the shift catalyst layer 15 etc.
- the first primary heat-insulating material forms the first primary heat-insulating molded body 37 that forms the first primary heat-insulating portion 17.
- the first primary heat-insulating molded body 37 is attached and covered inside the fuel reformer 1, and enables heat insulation to the outside of the high-temperature part (600 to 800 ° C).
- the first primary heat-insulating molded body 37 is solidified into a three-dimensional shape.
- the second primary heat-insulating material forms a second primary heat-insulating molded body 38 that forms the second primary heat-insulating portion 18.
- the second primary heat-insulating molded body 38 is formed into an annular shape and a cloth shape, inserted and mounted between the high-temperature portion and the low-temperature portion, and insulates between the high-temperature portion and the low-temperature portion to separate them thermally. And enable.
- the fuel reformer 1 can efficiently process the raw material gas G and efficiently produce the fuel gas J.
- the second heat insulating material forms the secondary heat insulating molded body 39.
- the secondary heat-insulating molded body 39 is formed into a cylindrical shape, and mounted and covered over the outer peripheral portion (side, top, bottom) of the fuel reformer 1 that has been subjected to primary heat insulation. It is possible to lower the temperature of the surface to a temperature that does not cause burns even if it comes into contact.
- the first primary heat-insulating molded body 37 mainly contains fine-particle silica and alumina-based fine-particle powder.
- Inorganic foam 37A or ultrafine silica powder is used as a main component.
- Inorganic porous body 37C formed by combining a heat insulating material forming inorganic porous body 37A and a heat insulating material forming inorganic porous body 37B in a block manner.
- the second primary heat-insulated molded body 38 includes an inorganic short fiber felt 38A mainly composed of rock wool or ceramic wool, or a mixed wool obtained by mixing them.
- rock wool as inorganic short fiber or glass wool as inorganic short fiber is formed into a cylindrical shape, and a skin material 40 such as ALGC (aluminum glass cloth) is further formed. It is applied to the outer peripheral part (side, top, bottom), and is used for piping of combustion exhaust gas F, raw material gas G, fuel gas J, and air for selective oxidation K (raw material inlet 31, combustion exhaust gas outlet 32, raw gas supply port 33, the reformed gas outlet 34, and the piping nozzle (connected to the selective oxidation air supply port 35) are drilled.
- a skin material 40 such as ALGC (aluminum glass cloth
- the primary heat insulating material (the first primary heat insulating material and the second primary heat insulating material) is composed of an inorganic material having low mechanical strength but excellent heat resistance, and has a temperature of 1000 ° C or more. High-temperature insulation of the fuel reformer 1 with primary heat insulation (first primary heat insulation and second primary heat insulation) against the internal high temperature zone of 600-800 ° C. Surface temperature can be reduced to 100 ° C-200 ° C. Note that the second primary heat insulating material used in the embodiment of the present invention is excellent in heat resistance but poor in mechanical strength because the heat-expanding material is powdered and becomes brittle when heated as described later.
- the secondary heat insulating material is slightly inferior in heat resistance to the primary heat insulating material, but is made of a material that is inexpensive and has practical strength. The purpose is to maintain the heat insulation in the temperature range of 300 ° C or lower, which also protects the primary heat-insulating molded body 37.
- the primary heat insulation and the secondary heat insulation make it possible to increase the production efficiency of the fuel reformer 1 and to supply the fuel reformer 1 having the heat-insulated molded body with excellent practicality.
- the first primary insulation molded body 37 silica-alumina-based fine particles, heat-reflecting material, heat-resistant fiber, Seiawazai, hard foamed at a density of about 500KgZm 3 following mixture was formulated with curing material It is good also as the inorganic foam 37A formed by making it into a foam.
- the first primary insulation molded body 37, the silica-based fine particles, heat-resistant fibers, and even the mixture blended with heat-reflecting material was compression molded at about 500 kg / m 3 or less of the density inorganic porous body 37B Mah.
- the second primary heat-insulated molded body 38 may be an inorganic short fiber felt 38A obtained by molding a mixture containing inorganic short fibers and a heat-expanding material into a felt shape.
- the inorganic short fiber may be selected from the group consisting of rock wool, ceramic wool, or a mixed fiber of rock wool and ceramic wool. Inorganic short fibers may be used after de-shot processing.
- Inorganic staple fiber felt 38A is composed of inorganic fibers selected from the group consisting of rock woolen, ceramic wool, or a mixed fiber of rock wool and ceramic wool, a sintered material, a binder, and a heat expansion material. It can be made into a felt shape.
- the secondary heat-insulating molded body 39 is preferably formed by molding and curing inorganic short fibers to which a binder is adhered into a cylindrical shape, and attaching a non-combustible cloth to the outer periphery of the cylindrical molded body.
- the inorganic short fibers are preferably rock wool short fibers or glass wool short fibers.
- the binder it is preferable to use one selected from the group consisting of a water-soluble phenol resin, a melamine resin, and colloidal silica.
- first primary heat-insulated molded body 37 for performing the first primary heat insulation the second primary heat-insulated molded body 38 for performing the second primary heat insulation, and the secondary heat-insulated molding for performing the second heat insulation
- the body 39 will be described in detail.
- the heat insulating material of the first primary heat insulating part 17 is formed of a first primary heat insulating molded body 37.
- the first primary heat-insulating molded body 37 is composed of 100 parts by weight of a matrix material comprising silica-alumina-based fine particle powder as a main component, a heat ray reflective material, heat-resistant fiber, fine particle lightening material, and an organic binder.
- a mixture of 50-100 parts by weight of a curing agent, 5-15 parts by weight of a foaming agent, and 0.1-0.2 parts by weight of a foam stabilizer is stirred and mixed into a mold to form a predetermined shape as shown in the figure. It can be manufactured by pouring into inorganic foam 37A.
- the silica'alumina-based fine particle powder contains metakaolin, bauxite, amorphous silica, fly ash, cement and the like as components. Titanium oxide fine particle powder is used as the heat ray reflective material. As heat-resistant fiber, glass-shopped fiber is used as both a dimension stabilizer and a reinforcing material. Perlite, glass balloons, shirasu balloons and the like are preferably used as the particle weight reducing material. As an organic binder for improving the strength of the inorganic foam 37A, a water-soluble modified acrylic resin, poval, or the like is used. As a hardening agent, sodium or potassium based anolyte metal silicate is preferably used. Aluminum powder or hydrogen peroxide as blowing agent Water is preferably used, and casein, silicone resin, castor oil ethylene propylene oxide, or the like is preferably used as a foam stabilizer.
- foaming and curing are performed at a temperature of 50 to 70 ° C for 30 minutes to 2 hours, followed by curing and drying at a temperature of about 100 ° C for about 2 hours, and further providing heat resistance and dimensional stability.
- heat treatment is performed at a temperature of 500 600 ° C. to produce the inorganic foam 37A.
- the density and thermal conductivity of the inorganic foam 37A produced in this way depend on the type of foam stabilizer, the amount of the foaming agent, the amount of the lightening agent, and the like.
- the heat-resistant temperature of the inorganic foam 37A is as high as about 1000 ° C. It is a heat insulating material that satisfies the conditions suitable for the above-mentioned high-temperature (600-800 ° C) heat insulation as primary heat insulation.
- the first primary heat insulating portion 17 may be a first primary heat insulating molded body 37 of another embodiment described below.
- a primary heat-insulating molded body 37 of another embodiment is an inorganic porous body produced by compression-molding a mixture obtained by blending a silica-based fine particle powder as a main component, a heat ray reflective material and heat-resistant fibers into a predetermined shape. 37B.
- silica-based fine particle powder silica fume or the like which is ultrafine silica powder is used.
- the heat ray reflective material fine particle powder titanium oxide and dinoconium oxide are preferably used.
- the heat-resistant fiber also functions as a reinforcing material, and glass chopped fiber may be used.
- the inorganic porous material 37B is expensive, it is preferable to use the inorganic porous material at a low density, but from the viewpoint of shape retention and economy, it is preferable to use a density of 200 to 500 kg / m 3. ingredients further 200- 300kg / m 3 of the range and is preferably Ri good to Les,. With a density in this range, a thermal conductivity of 0.020 to 0.030 WZmK can be obtained.
- the material has a high heat-resistant temperature of about 1000 ° C, and is expensive, but is capable of excellent high-temperature insulation, satisfying the requirements for primary insulation.
- the inorganic foam 37A or the inorganic porous body 37B is lightweight and has excellent heat resistance and heat insulation properties, and is sufficient for heat insulation and heat retention at a high temperature of 600 to 800 ° C, such as the combustion chamber 13 of the fuel reformer 1. Has performance.
- the first primary heat-insulating molded body 37 which is the inorganic foam 37A or the inorganic porous body 37B, has low strength, low surface hardness and insufficient cutting workability, In order to deal with these points, it is preferable to combine the first heat-insulating molded body 37 with the second heat-insulating molded body 39 from the viewpoint of economy.
- the fuel reformer 1 is used for adiabatic heat retention that separates a temperature range inside the fuel reformer 1 (separates a high-temperature part and a low-temperature part) as second primary heat insulation. It is possible to use a felt-shaped second primary heat-insulated body that is easy to insert or install in a narrow cylindrical space.
- the heat insulating material of the second primary heat insulating portion 18 is formed of a felt-shaped second primary heat insulating molded body 38 that is easy to insert and mount.
- the second primary heat-insulated molded body 38 of the present embodiment contains 100 parts by weight of the inorganic short fibers, 40 parts by weight of the heat-expandable inorganic powder, 5 to 15 parts by weight of the sinterable inorganic powder, and a bonding aid.
- a slurry obtained by dispersing a mixture consisting of 10 parts by weight or less of a binder and preferably 7 parts by weight or less from the viewpoint of nonflammability in water is used in a papermaking machine similar to a circular or fourdrinier type papermaking machine.
- Inorganic short fiber felt 38A produced by felt-shaped papermaking, drying and curing can be obtained.
- the inorganic short fibers constituting the present inorganic short fiber felt 38A are rock wool or ceramic wool, and are used alone or in combination.
- Rock wool is SiO 35-55wt
- Mineral raw material consisting of trace components 0-10 wt% such as Cr O, Na 0, K 0, Ti ⁇ , MnO
- the mixture is ceramic wool, Si-47-52wt%, Al-47-52wt%, Ca ⁇ , Mg
- a mixture of raw minerals consisting of —, TiO, Zr ⁇ and other minor components with a total of 0-10 wt%
- Such inorganic short fibers contain about 30 wt% of non-fibrillated particles called shots, and are used in the form of a shot-free treatment.
- heat-expandable inorganic powder unfired vermiculite powder, expandable graphite, or the like may be used.
- sinterable inorganic powder such as borax, sepiolite, attapulgite, low melting point glass frit, and potassium titanate whisker may be used.
- Acrylic resin, modified acrylic resin, vinyl acetate resin, phenol resin, colloidal silica, etc. are used as the organic binder and the inorganic binder.
- Polyethylene pulp, polyethylene / polypropylene composite fiber, nylon fiber, or the like may be used as a bonding aid.
- the present inorganic short fiber felt 38A is inserted, depending on the shape to be mounted, thickness 2-5 mm, a basis weight of 300- 2000 g / m 2 force S proper, the thermal conductivity after heating fire felt, It is in the range of 0.030-0.050 W / mK, and has a high heat resistance of 700-1000 ° C. It is a second type of heat-insulating type that keeps the high-temperature part inside the fuel reformer 1 from the low-temperature part. It can be used as the primary heat-insulating molded body 38 of the above.
- the heat insulating material of the secondary heat insulating portion 19 is formed of a secondary heat insulating molded body 39.
- the basic shape of the secondary heat-insulated molded body formed by shaping rock wool or glass wool short fiber as inorganic short fiber into a cylindrical shape is the rock wool described above, or has a composition power of SiO 60—72 wt%, Al 2 O 3.
- Such a secondary heat-insulating molded body 39 is obtained by melting the raw material having the composition of rock wool or glass wool described above in a cupola furnace or an electric furnace, and then forming the fibers in a high-speed rotating body or the like.
- a water-soluble binder solution containing water-soluble melamine resin, colloidal silica, and, if necessary, a water-soluble binder solution containing a plex-based water repellent and a silane coupling agent, is sprayed onto the mat, and the mat is wound around a cylindrical core tube. It is heat-hardened at a temperature of 150-250 ° C for 5-20 minutes, and cut and de-centered to produce a connected half-split cylindrical heat insulator.
- Such a cylindrical heat insulating material has a density of 80 to 150 kg / m 3 , a thermal conductivity of 0.030 to 0.050 W / mK, and has heat resistance suitable for a temperature range of 300 to 700 ° C.
- the cylindrical heat insulating material described above is covered with a skin material 40 such as ALGC (aluminum glass cloth) as a non-combustible cloth and ALK (aluminum kraft paper) as a non-combustible cloth, and is made with a hole for piping.
- ALGC aluminum glass cloth
- ALK aluminum kraft paper
- the first primary heat-insulated molded article 37, the second primary heat-insulated molded article 38, and the secondary heat-insulated molded article 39 of the present invention are inserted, attached, and covered to generate the fuel gas J.
- the outer surface temperature of the fuel reformer 1 has dropped to 30-50 ° C, compared to the internal temperature of the fuel reformer 1 of 600-800 ° C. It has excellent adiabatic heat retention, light weight, and easy maintenance. Demonstrates excellent performance.
- the workability of introduction, mounting, covering, etc. of the first primary heat-insulated molded body 37, the second primary heat-insulated molded body 38, and the secondary heat-insulated molded body 39 is satisfactory, and the economy and practicality are satisfied. Start / stop repeatedly
- the present invention solves the technical problem of the present invention by flexibly following the expansion and contraction of the container and showing good heat insulation.
- the heat-insulating body 38, the secondary heat-insulating material The secondary heat-insulating body 39 formed will be described with reference to examples.
- inorganic foam 37A (first primary heat-insulated molded body 37) will be described (Example 1).
- Metacarion 30wt%, wollastonite 28wt%, talc 20wt%, muscovite 2wt%, castor oil ethylene propylene oxide-based foam stabilizer Ij 2wt% 50 g of potassium silicate and 30 g of 17 wt% hydrogen peroxide solution are stirred at room temperature for 3 minutes, and the size, about 250 mm (length) X about 250 mm (width) X about 20 mm (thickness) steel mold that has been released Pour into frame and seal with lid.
- the mold was placed in a dryer at 50 ° C., foamed and cured for one hour, and then demolded to obtain an inorganic foam 37A.
- the foam 37A was cured at room temperature for 24 hours, dried at 100 ° C. for 2 hours after curing, and then heat-treated at 600 ° C. for 10 minutes to produce a final inorganic foam 37A.
- Table 1 shows the performance of the obtained inorganic foam 37A.
- the test method for the inorganic foam 37A shown in Table 1 is as follows.
- the thermal conductivity is evaluated by measuring the thermal conductivity by the JIS A 1412 flat plate method.
- the heat-resistant temperature is evaluated as the temperature at which the material shrinks by 2% when heated in an electric furnace at a heating rate of 10 ° C / min.
- the compressive strength is evaluated as the maximum compressive strength obtained by 5% compressive deformation.
- the inorganic foam 37A of the present invention is lightweight, has excellent heat resistance and heat insulation properties, satisfies the appropriate conditions for primary heat insulation, and can be foamed into a predetermined shape. It is understood that it can be used as the second heat-insulating molded body 37.
- Example 2 An example of the inorganic porous body 37B will be described (Example 2).
- Ultrafine powdered silica with a particle size of 50 nm or less manufactured by Japan Microtherm Co., Ltd.
- a porous body was manufactured.
- Table 2 shows the performance of the obtained inorganic porous body 37B (first primary heat-insulated molded body 37).
- the test method of the inorganic porous material 37B shown in Table 2 is as follows.
- the thermal conductivity is evaluated by measuring the thermal conductivity by the JIS A 1412 flat plate method.
- the heat resistance temperature is evaluated as the temperature at which 2% dimensional shrinkage occurs when heated in an electric furnace at a heating rate of 10 ° C / min.
- the inorganic porous body 37B has excellent heat resistance and heat insulation properties, and satisfies the appropriate conditions for primary heat insulation.However, the formability is somewhat inadequate and the material is expensive. It is preferable to partially use them.
- Example 3-1 an example of the inorganic short fiber felt 38A-1 (having the same shape as reference numeral 38A in the figure) (second primary heat-insulated molded body 38) will be described (Example 3-1). SiO 48wt%, Ca ⁇ lwt%, Mg028wt%, Al O 19wt%,
- Rockwool granulated cotton consisting of a total of 4 wt% is dispersed in water, defibrated and cut with a pulper, and then de-shot by a cleaner.
- a mixture consisting of 5 wt% of a thermally self-crosslinking acrylic resin emulsion with 2 wt% of fibers and a glass transition temperature of _14 ° C and a solid content of 45 wt% is dispersed with a mixer to prepare an aqueous slurry of about lwt%.
- the aqueous slurry was formed by a funnel-type paper machine, suction-dehydrated, and dried at 150 ° C. for 20 minutes to produce a phenolate having a thickness of about 5 mm.
- an inorganic short fiber felt 38A-1 was produced by subjecting a nonwoven polyester fiber nonwoven fabric of 20 g / m 2 to nid punching.
- the inorganic short fiber felt 38A-2 (same shape as reference numeral 38A in the figure) (second
- the primary heat-insulating molded body 38 will be described (Example 3-2).
- Example 3 70% by weight of the rock wool of Example 1, 10% by weight of expandable graphite having an average particle size of about 1.5 mm, 10% by weight of defibrated and refined sepiolite, 3% by weight of a mixture of potassium titanate and pulp, and a fiber length of about 10 mm.
- a mixture consisting of 2% by weight of denier polyethylene 'polypropylene composite fiber and 5% by weight of a thermally self-crosslinking acrylic resin emulsion having a solid content of 45% by weight and a glass transition temperature of 14 ° C was obtained in the same manner as in Example (3-1). 5 mm inorganic short fiber felt 38A-2 was produced.
- the inorganic foam was treated in the same manner as the rock wool of Example 1 and deshot.
- the obtained fiber wool with a fiber length of 100-1000 ⁇ m was 40 wt%, and the other components and the production method were as described in Example (3_1).
- An inorganic short fiber felt 38A-3 having a thickness of about 5 mm was produced in the same manner as in the above.
- Table 3 shows the performance of the inorganic short fiber felts 38A-1 to 38A-3 obtained in Examples (3-1) and (3-3). [Table 3]
- the test method for the inorganic short fiber felt 38A-1-3 shown in Table 3 is as follows. Fire resistance is evaluated by the base material test and surface test of JIS A 1321. The heat resistance temperature is evaluated as the temperature at which the vertical and horizontal dimensions of the felt shrink by 5% when heated in an electric furnace at a heating rate of 10 ° C / min. The coefficient of thermal expansion is the coefficient of thermal expansion in the thickness direction of the felt when heated at 600 ° C for 2 minutes in an electric furnace. The thermal conductivity is an evaluation based on the thermal conductivity according to the JIS A1412 flat plate method. From Table 3, it is understood that the inorganic short fiber felt 38A of the present embodiment is a sheet having heat resistance, heat insulating properties, and flexibility, and can be used as the insertion-type second primary heat-insulating molded body 38.
- a total of 5 wt% of rock wool raw material is melted in an electric furnace at 1450--1500 ° C and fiberized by a two-wheel high-speed rotating body using centrifugal force.
- a binder solution consisting of colloidal silica and a water-soluble melamine resin was sprayed from a plurality of horns placed around the body to produce uncured cotton with a solid content of 5 wt% attached to the fiber. Subsequently, it is wound around a steel core tube with an outer diameter of approximately 160 mm, and is heated and cured in a curing oven at 200 ° C for 30 minutes to a thickness of approximately 20 mm. Was manufactured.
- a commercially available ALGC (aluminum glass cloth) sheet was coated on a cylindrical heat-insulating material with a black-mouthed plane adhesive to produce a rock wool-based heat-insulated molded body 39 as a secondary heat-insulated molded body 39.
- a glass wool with an average fiber diameter of 6 / im is made of colloidal silica and water-soluble from multiple horns placed around the rotating body.
- a binder liquid consisting of water-soluble phenol was sprayed to produce uncured cotton having a solid content of 7% by weight attached to the fiber.
- the core was wound around a steel core tube having an outer diameter of about 160 mm to a thickness of about 20 mm, and was heated and cured in a curing oven at 200 ° C for 30 minutes, and then decored.
- Table 4 shows the performance of the heat-insulated molded articles obtained in Examples 4 and 5.
- Example 4 or 5 the thermal conductivity of the thick portion was evaluated using a heat insulating plate formed into a flat plate at the same density.
- Table 4 shows that the cylindrical heat-insulated molded article of the present invention has lower heat resistance than the primary heat-insulating material, but has excellent heat-insulating properties, mechanical strength, moisture-proofing properties, and coverability, and is inexpensive. Since it is composed of material, it can be used as an economical secondary insulation molding 39.
- the outer diameter of the first primary insulation molding 37 is about 170 mm, the length is about 180 mm, the inner diameter of the recess 20 of the first primary insulation molding 37 is about 90 mm, the depth is about 130 mm, and the second 1
- the inner diameter of the secondary insulation molded body 38 is about 90 mm, the thickness is about 5 mm, the length is about 390 mm, and the outer diameter of the secondary insulation molded body 39 is about 200 mm, the thickness is about 20 mm, and the length is about 20 mm.
- a stainless steel fuel reformer 1 having a combustion chamber 13 (combustion temperature of 600-800 ° C.) and heat exchange sections 24, 25 and 26 having a combustion chamber 13 (combustion temperature of 600-800 ° C.)
- the first heat-insulated molded article 37 of Example 1 the second primary heat-insulated molded article 38 made of the inorganic short fiber felt 38A-2 of Example 3-2, and the secondary heat-insulated molded article of the rock wool type cylindrical shape of Example 4 Insert 39 into the fuel reformer 1, mount it, cover it, and keep it adiabatic so that the outer diameter of the fuel reformer 1 is about 200 mm and the length is about 640 mm.
- Example 6-2 in the fuel reformer 1 of Example 6-1, the inorganic porous body 37B used in Example 2 was used instead of the inorganic foam 37A.
- the inorganic short fiber felt 38A-2 used in Example 3-2 the inorganic short fiber felt 38A-1 used in Example 3-1 was used for heat insulation.
- Examples 6-1 and 6-2 a fuel gas generation test was performed.
- the temperature of the chamber is 600-800 ° C.
- the outside temperature of the insulated and kept fuel reformer 1 is as low as 40-50 ° C.
- the inorganic foamed body 37A and the inorganic porous body are used as the first primary heat-insulated molded body 37 of the present embodiment.
- a heat insulating material consisting of a combination of annular short inorganic fiber felts 38A-1 and 38A-2 and a cylindrical secondary heat insulating molded body 39 was inserted into the fuel reformer 1 as the primary insulating molded body 38.
- the heat-insulated molded bodies 37, 38, and 39 of the embodiment (1-16) are made of an inexpensive material that is easy to insert, install, and cover in the fuel reformer 1 that is lightweight and has good maintainability. Because it is configured as a base, it has the effect of being economically insulated and heat-retaining and of being highly practical. The same effect can be obtained by using the inorganic combination body 37C as the first primary heat-insulating molded body 37 or using the inorganic short fiber felt 38A-3 as the second primary heat-insulating molded body 38.
- FIG. 1 is a cross-sectional view showing a configuration of a fuel reformer of the present invention.
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CA002568987A CA2568987A1 (en) | 2004-06-02 | 2004-06-02 | Fuel processor |
PCT/JP2004/007625 WO2005118467A1 (ja) | 2004-06-02 | 2004-06-02 | 燃料処理装置 |
EP04745524A EP1772427A4 (en) | 2004-06-02 | 2004-06-02 | FUEL TREATMENT DEVICE |
US11/569,920 US20080066438A1 (en) | 2004-06-02 | 2004-06-02 | Fuel Treating Device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2004/007625 WO2005118467A1 (ja) | 2004-06-02 | 2004-06-02 | 燃料処理装置 |
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WO2005118467A1 true WO2005118467A1 (ja) | 2005-12-15 |
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PCT/JP2004/007625 WO2005118467A1 (ja) | 2004-06-02 | 2004-06-02 | 燃料処理装置 |
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US (1) | US20080066438A1 (ja) |
EP (1) | EP1772427A4 (ja) |
CA (1) | CA2568987A1 (ja) |
WO (1) | WO2005118467A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018055788A1 (ja) * | 2016-09-20 | 2018-03-29 | パナソニックIpマネジメント株式会社 | 水素生成装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102156350B1 (ko) | 2012-06-14 | 2020-09-15 | 누베라 퓨엘 셀스, 엘엘씨 | 증기 개질기, 모듈 및 사용 방법 |
US10479680B2 (en) * | 2015-01-14 | 2019-11-19 | Raven Sr, Llc | Electrically heated steam reforming reactor |
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JPH0218300B2 (ja) * | 1984-03-31 | 1990-04-25 | Ibiden Co Ltd | |
JPH07144934A (ja) * | 1993-11-19 | 1995-06-06 | Shinetsu Quartz Prod Co Ltd | 耐熱性シリカ質発泡体及びその製造方法 |
JP2003146612A (ja) * | 2001-11-13 | 2003-05-21 | Mitsubishi Electric Corp | 燃料改質装置 |
JP2004043232A (ja) * | 2002-07-10 | 2004-02-12 | Honda Motor Co Ltd | 水素発生装置 |
JP2004123464A (ja) * | 2002-10-03 | 2004-04-22 | Tokyo Gas Co Ltd | 水蒸気改質器 |
JP2004182528A (ja) * | 2002-12-03 | 2004-07-02 | Ebara Ballard Corp | 燃料処理装置 |
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US3071454A (en) * | 1960-08-04 | 1963-01-01 | Phelps Dodge Corp | Apparatus for reforming gases |
JPS6025540B2 (ja) * | 1981-09-29 | 1985-06-19 | イソライト・バブコツク耐火株式会社 | 膨張性セラミツクフアイバ−フエルト |
US4861348A (en) * | 1986-10-08 | 1989-08-29 | Hitachi, Ltd. | Fuel reforming apparatus |
US4814300A (en) * | 1987-12-02 | 1989-03-21 | The Duriron Company, Inc. | Porous ceramic shapes, compositions for the preparation thereof, and method for producing same |
JPH0688761B2 (ja) * | 1988-09-19 | 1994-11-09 | 株式会社神戸製鋼所 | 炭化水素の改質装置 |
ZA911838B (en) * | 1990-04-03 | 1991-12-24 | Standard Oil Co Ohio | Endothermic reaction apparatus |
US5484577A (en) * | 1994-05-27 | 1996-01-16 | Ballard Power System Inc. | Catalytic hydrocarbon reformer with enhanced internal heat transfer mechanism |
FR2757499B1 (fr) * | 1996-12-24 | 2001-09-14 | Etievant Claude | Generateur d'hydrogene |
JPH10218602A (ja) * | 1997-02-06 | 1998-08-18 | Fuji Electric Co Ltd | 燃料電池発電装置用改質器 |
DE60222123T2 (de) * | 2001-06-04 | 2007-12-20 | Tokyo Gas Co. Ltd. | Zylinderförmige wasserdampfreformierungseinheit |
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2004
- 2004-06-02 EP EP04745524A patent/EP1772427A4/en not_active Withdrawn
- 2004-06-02 CA CA002568987A patent/CA2568987A1/en not_active Abandoned
- 2004-06-02 US US11/569,920 patent/US20080066438A1/en not_active Abandoned
- 2004-06-02 WO PCT/JP2004/007625 patent/WO2005118467A1/ja active Application Filing
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JPH0218300B2 (ja) * | 1984-03-31 | 1990-04-25 | Ibiden Co Ltd | |
JPH07144934A (ja) * | 1993-11-19 | 1995-06-06 | Shinetsu Quartz Prod Co Ltd | 耐熱性シリカ質発泡体及びその製造方法 |
JP2003146612A (ja) * | 2001-11-13 | 2003-05-21 | Mitsubishi Electric Corp | 燃料改質装置 |
JP2004043232A (ja) * | 2002-07-10 | 2004-02-12 | Honda Motor Co Ltd | 水素発生装置 |
JP2004123464A (ja) * | 2002-10-03 | 2004-04-22 | Tokyo Gas Co Ltd | 水蒸気改質器 |
JP2004182528A (ja) * | 2002-12-03 | 2004-07-02 | Ebara Ballard Corp | 燃料処理装置 |
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Cited By (1)
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WO2018055788A1 (ja) * | 2016-09-20 | 2018-03-29 | パナソニックIpマネジメント株式会社 | 水素生成装置 |
Also Published As
Publication number | Publication date |
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EP1772427A4 (en) | 2011-05-25 |
EP1772427A1 (en) | 2007-04-11 |
CA2568987A1 (en) | 2005-12-15 |
US20080066438A1 (en) | 2008-03-20 |
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