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4D148 | EXHAUST GAS TREATMENT BY MEANS OF CATALYST | |
B01D53/73 ,500;53/86-53/90;53/94-53/94,400;53/96,500 |
B01D53/73,500;53/86-53/90;53/94-53/94,400;53/96,500 | AA | AA00 TREATED COMPONENTS |
AA01 | AA02 | AA03 | AA04 | AA05 | AA06 | AA07 | AA08 | AA09 | AA10 |
. Sulfur compounds (FW) | . . Sulfur oxide (SOx) | . . Hydrogen sulfide (H2S) | . . Carbonyl sulfide (COS) or carbon disulfide (CS2) | . Nitrogen compounds (FW) | . . Nitrogen oxide (NOX) | . . . Dinitrogen monoxide (N2O) | . . Ammonia (NH3) | . . Cyanogen compounds or nitrile compounds | . . . Hydrogen cyanide (HCN) | |||
AA11 | AA12 | AA13 | AA14 | AA15 | AA16 | AA17 | AA18 | AA19 | AA20 | |||
. Halogens or halides | . Ozone (O3) | . Carbon monoxide (CO) | . Unburned carbon | . Phosphorus compounds or silicon compounds | . Metals or metal compounds | . Organic compounds (AA01 through AA16 have precedence.) (FW) | . . Unburned hydrocarbons | . . Aldehydes | . . Alcohols | |||
AA21 | AA22 | AA23 | AA24 | AA30 | ||||||||
. Substances not specified as compounds | . . Odor components | . . Organic solvent components | . . Oils, fats or tars | . Other materials specified as compounds (FW) | ||||||||
AB | AB00 CHEMICAL REACTIONS |
AB01 | AB02 | AB03 | AB06 | AB07 | AB08 | AB09 | AB10 | |||
. Oxidation or combustion | . Reduction | . Decomposition | . Pretreatment reactions | . Reactions under the influence of non-reactive components | . Simultaneous processing of multiple components | . . Simultaneous processing of NOX with unburned components or incompletely burned components | . Others | |||||
AC | AC00 ADDITIVE TREATMENT AGENTS |
AC01 | AC02 | AC03 | AC04 | AC05 | AC06 | AC07 | AC08 | AC09 | AC10 | |
. Diatomic hydrogen (H2) | . Carbon oxide (CO) or hydrocarbons | . Nitrogen compounds (AC08 has precedence) (FW) | . . Ammonia (NH3) | . Halogens or halides (AC08 has the precedence) | . Oxygen (O2) | . Ozone (O3) | . Hydrogen peroxide (H2O2) or inorganic acids | . Organic compounds (AC02, AC03 and AC05 have precedence)(FW) | . Others (FW) | |||
BA | BA00 CATALYST OR CARRIER COMPONENTS |
BA01 | BA02 | BA03 | BA04 | BA05 | BA06 | BA07 | BA08 | BA09 | BA10 | |
. Magnesium | . Calcium (Ca) | . Aluminum (Al) | . Boron (B) | . Carbon (C) (carbon compounds are classified in BA45) | . Silicon (Si) | . Titanium (Ti) | . Zirconium (Zr) | . Natural minerals | . Ceramics | |||
BA11 | BA12 | BA13 | BA14 | BA15 | BA16 | BA17 | BA18 | BA19 | BA20 | |||
. Zeolites | . Other inorganic refractors | . Components classified in BA01 to BA12 used as catalyst components | . Alkali metals | . Beryllium (Be) or alkaline earth metals, except magnesium (Mg) and calcium (Ca) | . Zinc (Zn), cadmium (Cd), or mercury (Hg) | . Gallium (Ga), indium (In), or thallium (Tl) | . Rare earth elements, hafnium (Hf), or actinium (Ac) | . . Cerium (Ce) | . Germanium (Ge) or lead (Pb) | |||
BA21 | BA22 | BA23 | BA24 | BA25 | BA26 | BA27 | BA28 | BA29 | BA30 | |||
. Tin (Sn) | . Arsenic (As), antimony (Sb), or bismuth (Bi) | . Vanadium (V) | . Niobium (Nb) or tantalum (Ta) | . Chromium (Cr) | . Molybdenum (Mo) | . Tungsten (W) | . Manganese (Mn) | . Technetium (Tc) or rhenium (Re) | . Platinum (Pt) | |||
BA31 | BA32 | BA33 | BA34 | BA35 | BA36 | BA37 | BA38 | BA39 | ||||
. Palladium (Pd) | . Ruthenium (Ru) | . Rhodium (Rh), iridium (Ir), or osmium (Os) | . Silver (Ag) or gold (Au) | . Copper (Cu) | . Iron (Fe) | . Cobalt (Co) | . Nickel (Ni) | . Alloys or metal carriers | ||||
BA41 | BA42 | BA43 | BA44 | BA45 | BA46 | BA48 | BA50 | |||||
. Oxides | . . Complex oxides | . Halides | . Phosphorus (P) or compounds thereof | . Carbon compounds | . Sulfur compounds or nitrogen compounds | . Components not specified as compounds | . Others (FW) | |||||
BB | BB00 SHAPE OR STRUCTURE OF THE CATALYST OR CARRIER |
BB01 | BB02 | BB03 | BB04 | BB05 | BB06 | BB07 | BB08 | BB09 | ||
. Granular shapes | . Honeycomb or lattice shape | . Flat plate shapes (with gas flowing parallel to the plate) | . Surface with waves, roughness, or projections | . Tube or ring shapes | . Rods, wires, needles, or coil shapes | . Netting | . Fiber-like or woven fabric-like structures | . Foaming tertiary structures | ||||
BB11 | BB12 | BB13 | BB14 | BB15 | BB16 | BB17 | BB18 | BB20 | ||||
. Reinforced structures | . Structures with airways with specific shapes | . Structures having notches, grooves, or holes | . Structures with blockages at edge of air way | . Uneven catalyst structures | . Uneven compositions or carrying amounts | . Characteristic pores or grain diameters | . Structures for fixing or holding of catalyst or carrier | . Others | ||||
BC | BC00 PROTECTION OF CATALYST |
BC01 | BC02 | BC03 | BC04 | BC05 | BC06 | BC07 | BC08 | BC09 | BC10 | |
. Catalytic poisons contained within the gas (FW) | . . Phosphorus | . . Metals | . Pre-removal of catalyst poisons | . Application of poison-proofing treatments to catalyst | . Abrasion prevention | . . Application of protective coating to catalysts | . . Pre-removal of coarse grains | . Overheating prevention by cooling means | . Others | |||
BD | BD00 RECYCLING OR ACTIVATING OF CATALYST |
BD01 | BD02 | BD03 | BD04 | BD05 | BD06 | BD07 | BD10 | |||
. Recycling or activating by heating | . Recycling or activating by treatment with gases | . . Gas treatments using reduction agents | . . Gas treatments using oxidation agents | . Recycling or activation by treatment with liquids | . . Washing | . Recycling or activation by readjustment | . Others | |||||
CA | CA00 SECURING DEVICES FOR CATALYST |
CA01 | CA02 | CA03 | CA04 | CA05 | CA06 | CA07 | CA08 | CA10 | ||
. Casings or cases | . Molding of catalysts into units | . Columns or tubs | . . Down-flow devices | . Radial-flow devices | . Sheet-like or layer-like devices | . Characteristic shapes or structures of reaction vessels, columns, or tubs | . Characteristic manufacturing methods for casings, columns, or tubs | . Others | ||||
CB | CB00 CATALYST-MOVING DEVICES |
CB01 | CB02 | CB03 | CB04 | CB05 | CB06 | CB07 | CB10 | |||
. Moving beds | . . Beds with characteristic holding means | . Fluid beds | . Transportation by gas flows | . Rotary systems | . . Systems that use integrally molded catalysts | . Endless belts | . Others | |||||
CC | CC00 OVERALL AND DETAILED STRUCTURES OF DEVICES |
CC01 | CC02 | CC03 | CC04 | CC05 | CC06 | CC07 | CC08 | CC09 | CC10 | |
. Holding or sealing of catalysts | . . Buffering holding members or sealing members | . . . Metal | . . . Inorganic refractors | . . . Heat-expansion materials | . . . Characteristic shapes or manufacturing methods | . . Catalyst that are installed in a sealing unit | . . Structures for fixing or holding of catalytic units | . . Holding by connecting rods or frames | . . Characteristic support members | |||
CC11 | CC12 | CC13 | CC14 | CC15 | CC16 | CC17 | ||||||
. Dust-proofing measures (Places CD03 to CD05 have precedence) | . . Devices for preventing dust accumulation | . . . Use of cone-shaped members | . . Mechanical removal of deposits | . . . Dust removal by scraping or sweeping | . . . Air-blasting | . . . Floating, agitation, or vibration of the catalyst | ||||||
CC21 | CC22 | CC23 | CC24 | CC25 | CC26 | CC27 | CC28 | CC29 | ||||
. Gas-flow devices | . . Devices with rectification mechanisms | . . Devices with gas-mixing or agitation mechanisms | . . Controlling channel surface areas and flow speed | . . Controlling or switching of the direction of the gas flow | . . Gas-flow bypass conduits | . . Treated-gas circulation conduits | . . Devices where gas flows multiple times in the same catalyst layers (CC27 has precedence) | . . Devices where gas flows into the crevices between catalysts | ||||
CC31 | CC32 | CC33 | CC34 | CC35 | CC36 | CC38 | CC39 | CC40 | ||||
. Arrangement of catalysts | . . Multiple catalytic active sites | . . . Parallel arrangements | . . Discharging of gas from side surfaces of multiple rectangular catalyst layers | . . Arrangements wherein the catalyst is tilted against the gas flow | . . Characteristic laminated arrangements of catalysts | . . Mounting of catalysts on specific devices | . . . Burning appliances | . . . Air purifiers | ||||
CC41 | CC42 | CC43 | CC44 | CC45 | CC46 | CC47 | CC48 | CC49 | CC50 | |||
. . Integration of catalyst with other functions | . . . Heat exchanger | . . . Heating means | . . Use of heterogeneous catalysts | . . . Catalysts of different shapes or sizes | . . . Catalysts with different compositions | . . . . Oxidation or reduction catalysts | . . . . Catalysts with different active temperatures | . . . Catalysts with different carrying amounts | . . . Catalysts for use under mixed conditions | |||
CC51 | CC52 | CC53 | CC54 | CC55 | CC57 | CC58 | CC59 | |||||
. Temperature adjustment (Places CC21 to CC29, or BC09 have precedence) | . . Heating means (CC43 and CC54 take precedence) | . . . Heating of catalysts | . . Heat exchangers (CC42 and CC55 take precedence) | . . Structures for equalization of catalyst layer temperatures | . Shapes of catalytic units (CC08 takes precedence) | . . Partitioning of catalyst layers | . . Control of catalyst capacity | |||||
CC61 | CC62 | CC63 | CC70 | |||||||||
. Characteristic structures or arrangements of devices for adding treatment agents | . Characteristic filling or transportation of catalysts | . Characteristic device materials | . Others | |||||||||
CD | CD00 COMBINATION WITH OTHER DEVICES |
CD01 | CD02 | CD03 | CD04 | CD05 | CD06 | CD08 | CD10 | |||
. Absorption or dry absorption devices | . Wet absorption devices | . Dust collection devices | . . Moving bed system | . . Filter systems | . Devices for monitoring catalyst activity | . Characteristic arrangement sequences | . Others | |||||
DA | DA00 CONTROL, DETECTION, OR QUANTITY LIMITATION |
DA01 | DA02 | DA03 | DA05 | DA06 | DA07 | DA08 | DA09 | DA10 | ||
. Control | . Detection | . Quantity limitation | . Amount of gas flow | . Gas temperature | . Gas pressure | . This place covers a pressure loss of a catalyst. | . Concentration of treated components | . Density of treatment agents | ||||
DA11 | DA12 | DA13 | DA20 | |||||||||
. Amount of additive treatment agents | . Catalyst concentration | . Amount of catalyst supplied | . Catalyst temperature | |||||||||
EA | EA00 OTHER CHARACTERISTICS |
EA01 | EA02 | EA03 | EA04 | EA05 | EA06 | EA07 | EA08 | EA10 | ||
. Light or ultraviolet irradiation | . Catalyst layers used as electrodes | . Treatments using electric discharge, magnetism, or supersonic waves | . Catalysts with absorbing functions | . Component reclamation from dust or the like | . Measures against thermal expansion | . Post-treatments | . Characteristic catalyst-mounting methods | . Others |