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1. 发明专利

JPH038415A TREATMENT OF EXHAUST GAS 失效
公开(公告)号：JPH038415A
公开(公告)日：1991-01-16
申请号：JP14466789
申请日：1989-06-07
申请人： HIRAOKA MASAKATSU , NGK INSULATORS LTD , NIPPON CATALYTIC CHEM IND
发明人： HIRAOKA MASAKATSU , IMOTO YOSHINORI , HARA KATSUNOSUKE , SANO KUNIO , INOUE AKIRA
IPC分类号： F23J15/00 , B01D53/86 , B01J23/26 , B01J23/34 , B01J23/40 , B01J23/72 , B01J23/74 , B01J23/745
摘要： PURPOSE:To remove poisonous org. chlorine compds. such as polychlorinated dibenzodioxine and polychlorinated dibenzofuran in exhaust gas by bringing a specified amt. of the exhaust gas into contact with a catalyst at a specified temp. CONSTITUTION:Exhaust gas contg. poisonous org. chlorine compds. such as polychlorinated dibenzodioxine and polychlorinated dibenzofuran, e.g. exhaust gas from an incinerator is brought into contact with a catalyst at 250 deg.C and >=50,000 space velocity by >=250m /hr per 1m surface area of the catalyst to remove the poisonous org. chlorine compds. The catalyst has a compsn. contg. the oxide of Ti, Si or Zr or the multiple oxide of such metals and a metal such as Pt, Pd, Ru, Mn or Cu or the oxide of the metal.

2. 发明专利

JPS5212754A DRY DISTILLATION OF SEWAGE SLUDGE 失效
公开(公告)号：JPS5212754A
公开(公告)日：1977-01-31
申请号：JP8789675
申请日：1975-07-18
申请人： NGK INSULATORS LTD
发明人： MAJIMA TAKESHI , HARA KATSUNOSUKE
IPC分类号： C02F11/00 , C02F11/10 , C10B53/00 , F23G5/027 , F23G5/38 , F23G7/00 , F27B1/02
摘要： PURPOSE:Dry distillation of sewage sludge which is characterized to have specific advantages, i.e. remarkable reduction of hexavalent chromium formation, greater sludge treatment capacity per unit hour with less fuel consumption than the conventional similar method taken so far, less pipe clogging or staining of machines and apparatus with tars produced in or from exhaust gas.

3. 发明专利

JPH0312221A WASTE REFUSE TREATMENT METHOD 失效
公开(公告)号：JPH0312221A
公开(公告)日：1991-01-21
申请号：JP14625089
申请日：1989-06-08
申请人： HIRAOKA MASAKATSU , NGK INSULATORS LTD , NIPPON CATALYTIC CHEM IND
发明人： HIRAOKA MASAKATSU , IMOTO YOSHINORI , HARA KATSUNOSUKE , SANO KUNIO , INOUE AKIRA
IPC分类号： F23J15/00 , B01D53/86 , B01J23/26 , B01J23/34 , B01J23/40 , B01J23/72 , B01J23/74 , B01J23/745
摘要： PURPOSE:To prevent generation of toxic organic chlorine compounds such as dioxin by introducing a combustion gas discharged from an incinerator into a waste refuse collecting part of an incinerator installation after treating the gas with a catalyst of a metal oxide in a specified composition. CONSTITUTION:A catalyst is obtained by molding >=1 of Ti, Si, and Zn and/or >=1 of their composite oxides with >=1 of Pt, Pd, Ru, Mn, Cu, Cr, Fe, and their oxides into a pellet, a plate, a cylinder, or a honeycomb shape. After a combustion gas containing toxic chlorine-type polymer compounds such as polychlorodibenzodioxin, polychlorodibenzofuran, etc., from an incinerator is treated with the catalyst, the gas is introduced into a waste refuse collecting part of an incinerator installation so as to prevent generation of toxic organic chlorine compounds.

4. 发明专利

JPH0463288B2 失效
公开(公告)号：JPH0463288B2
公开(公告)日：1992-10-09
申请号：JP12649387
申请日：1987-05-22
申请人： NGK INSULATORS LTD
发明人： IMOTO YOSHINORI , HARA KATSUNOSUKE
IPC分类号： F23G7/07 , B01D53/86 , F23G7/06

5. 发明专利

JPH04118027A TREATMENT OF WASTE GAS 失效
公开(公告)号：JPH04118027A
公开(公告)日：1992-04-20
申请号：JP23619590
申请日：1990-09-06
申请人： HIRAOKA MASAKATSU , NIPPON KOKAN KK , NGK INSULATORS LTD
发明人： HIRAOKA MASAKATSU , IWASAKI TOSHIHIKO , TSUBOI HARUTO , NOTO TAKASHI , YAMAGISHI MIKI , YOKOYAMA TAKASHI , SUZUKI YASUO , IMOTO YOSHINORI , HARA KATSUNOSUKE , ISHIKAWA OSAMU
IPC分类号： B01D53/86 , B01J23/26 , B01J23/34 , B01J23/40 , B01J23/70 , B01J35/04
摘要： PURPOSE:To remove org. chlorine compds. in waste gas at high efficiency by depositing metal such as Pt, etc., or its oxide on a substrate, comprising oxides such as TiO2, Al2O3 and SiO2 to constitute a catalyst, and bringing waste gas from an incinerator furnace or the like into contact with this catalyst at specified temp. CONSTITUTION:On the surface of a substrate comprising oxides containing at least TiO2, Al2O3, and SiO2, at least one metal selected from Pt, Pd, Ru, Mn, Cu, Cr and Fe or oxides of these is deposited to obtain a catalyst. By using this catalyst, waste gas from an incinerator furnace or the like is brought into contact with the catalyst at 150-350 deg.C. Thereby, toxic org. chlorine compds. such as polychlorodibenzodioxin, polychlorodibenzofuran, etc., included in the waste gas can be removed at high efficiency without requiring special heating of the gas.

6. 发明专利

JPH0342015A DECOMPOSITION TREATMENT OF FLUOROCARBON 失效
公开(公告)号：JPH0342015A
公开(公告)日：1991-02-22
申请号：JP17601289
申请日：1989-07-07
申请人： HIRAOKA MASAKATSU , NGK INSULATORS LTD
发明人： HIRAOKA MASAKATSU , IMOTO YOSHINORI , HARA KATSUNOSUKE
IPC分类号： B01D53/86 , B01J23/26 , B01J23/34 , B01J23/40 , B01J23/72 , B01J35/04
摘要： PURPOSE:To decompose a gaseous fluorocarbon which contains chlorofluorocarbon or hydrofluorocarbon at high efficiency by fringing the gas into contact to a catalyst under conditions of temp. and space velocity in specified ranges. CONSTITUTION:The catalyst consists of a carrier and elements selected from Pt, Rh, Pb, Ru, Mn, Cu, Cr, and Fe or oxides of these, deposited on the carrier. The gas which contains chlorofluorocarbon or hydrofluorocarbon is made to contact to the catalyst above described under conditions of >=200 deg.C and ) space velocity to decompose chlorofluorocarbon or hydrofluorocarbon. As for the carrier of the catalyst, it is preferable to use a honeycomb-type monolithic body having a through hole with =50% porosity.

7. 发明专利

JPS63290314A METHOD OF PROCESSING COMBUSTION FURNACE WASTE GAS 失效
公开(公告)号：JPS63290314A
公开(公告)日：1988-11-28
申请号：JP12649387
申请日：1987-05-22
申请人： NGK INSULATORS LTD
发明人： IMOTO YOSHINORI , HARA KATSUNOSUKE
IPC分类号： F23G7/07 , B01D53/86 , F23G7/06
摘要： PURPOSE:To cause an extremely small amount of harmful organic chlorine compound contained in waste gas to be completely oxidized and decomposed even if a recombustion part is not arranged by a method wherein the waste gas discharged from a combustion furnace is allowed to contact an oxidation catalyst to oxidize and decompose the organic chlorine compound in the waste gas. CONSTITUTION:Waste gas discharged from a combustion furnace for city garbage or for sewage sludge or the like is contacted with oxidization catalyst of platinum catalyst carried on a ceramic carrier or the like at a temperature of 300-900 deg.C to cause organic chlorine compound in the waste gas to be oxidized and decomposed to restrict harmful organic chlorine compound such as dioxine, PCB or the like from being generated. It is possible to oxidize organic chlorine compound such as C6H5Cl, C6H4Cl, C6H3Cl3 or the like in the waste gas by about 85-97% at a temperature higher than 300 deg.C and then at a temperature higher than 400 deg.C, decompose it to CO2 and HCl or the like completely. C6H5Cl, C6H4Cl2 and C6H3Cl3 are important precursors in the reaction course in which halogenation aromatic hydrocarbon such as dioxine, PCB and chlorophenol and the like are generated in the combustion furnace. These substances are oxidized and decomposed and then it is possible to prevent completely harmful substances such as dioxine, PCB and chlorophenol and the like from being generated.

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