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3. 发明专利

CA1315768C ADSORBENT FOR ARSENIC COMPOUNDS AND METHOD FOR REMOVING ARSENIC COMPOUNDS FROM COMBUSTION GAS 未知
公开(公告)号：CA1315768C
公开(公告)日：1993-04-06
申请号：CA565463
申请日：1988-04-29
申请人： MITSUBISHI HEAVY IND LTD , SAKAI CHEMICAL INDUSTRY CO , MITSUBISHI PETROCHEMICAL CO , MITSUBISHI PETROCHEM ENG , CATALYSTS & CHEM IND CO
发明人： MIYAZAWA MASAKI , KOBAYASHI NORIHISA , TAKATSUKA HIROMU , MORII ATSUSHI , KOYANAGI TOSHIO , SETO TOURU , IIDA KOZO , MITSUOKA SHIGEAKI , RIKIMARU HIROAKI , IMANARI MAKOTO , KOSHIKAWA TAKEO , YAMAUCHI AKIHIRO , HANADA MASAYUKI , FUKUDA MORIO , NAGANO KIYOSHI
IPC分类号： B01D53/64 , B01D53/02 , B01D53/10 , B01D53/34 , B01D53/46 , B01D53/86 , B01D53/94 , B01J20/02 , B01J20/10 , B01J20/18 , B01J20/28
摘要： 21326-109 Disclosed is an adsorbent for adsorbing and removing an arsenic compound which becomes a catalyst poison in a selective contact reduction process for removing nitrogen oxides (NOx) from a combustion exhaust gas by the use of an ammonia as a reducing agent and a denitrating catalyst. The adsorbent comprises a material in which the total volume of pores is 0.2 to 0.7 cc/g and the volume of the pores having a pore diameter of 300 A or more is 10% or more with respect to the total pore volume. Also disclosed is a method for removing the arsenic compound from the combustion exhaust gas by injecting the adsorbent into a flow of the gas on an upstream side of the denitrating catalyst.

4. 发明专利

CA1307251C CATALYST AND A METHOD FOR DENITRIZING NITROGEN OXIDES CONTAINED IN WASTE GAS 未知
公开(公告)号：CA1307251C
公开(公告)日：1992-09-08
申请号：CA542955
申请日：1987-07-24
申请人： SAKAI CHEMICAL INDUSTRY CO , MITSUBISHI HEAVY IND LTD , MITSUBISHI PETROCHEMICAL CO , MITSUBISHI PETROCHEM ENG , CATALYSTS & CHEM IND CO
发明人： RIKIMARU HIROAKI , NAKATSUJI TADAO , UMABA TOSHIKATU , NAGANO KAZUHIKO , MISHINA KAZUYA , SHIMIZU HIROMITSU , NOJIMA SHIGERU , IIDA KOZO , OBAYASHI YOSHIAKI , SETO TOURU , MITSUOKA SHIGEAKI , HANADA MASAYUKI , FUKUDA MORIO , NAGANO KIYOSHI , IMANARI MAKOTO , KOSHIKAWA TAKEO , YAMAUCHI AKIHIRO
IPC分类号： B01D53/86 , B01J23/18 , B01J23/22 , B01J23/24 , B01J23/34 , B01J23/843 , B01J23/889 , B01D53/36 , B01J23/84
摘要： A catalyst for denitrizing nitrogen oxides contained in waste gas which contains a substantial amount of arsenic compounds therein, which comprises: (a) titanium, and (b) at least one element selected from the group consisting of arsenic and manganese. The catalyst is resistant to deactivation by arsenic compounds and retains high denitrizing activity over a long period of time. The catalyst may further contain at least one base metal selected from the group consisting of V, W, Mo, Cu, Fe, Cr, Co, Ni, Zn and Sn.

7. 发明专利

AT184046T 未知
公开(公告)号：AT184046T
公开(公告)日：1999-09-15
申请号：AT91116764
申请日：1991-10-01
申请人： MITSUBISHI HEAVY IND LTD , RYOMEI ENG CORP LTD
发明人： SUEHIRO MITSUGI , SETO TOURU , MITSUOKA SHIGEAKI , INOUE KENJI , SHIROTA KAZUHIKO
IPC分类号： B01D53/14 , B01D53/48 , B01D53/52 , C01B17/04 , C01B17/50 , C10J3/72 , C10K1/20 , C10K1/32 , B01D53/34 , B01D53/04
摘要： A process for purifying high-temperature reducing gases containing sulfureous contaminants including hydrogen sulfide and carbonyl sulfide with an absorbent, said process characterized in that at least three reactor towers which are filled with an absorbent are used, and said process comprises the three steps of absorption, regeneration, and reduction, and during in a part of operation two reactor towers are connected in series so as to carry out regeneration, and O2 concentration can be controlled separately for each regenerating reactor tower in the regeneration step, and steam can be supplied so as to prevent excessive reduction of the absorbent from occurring in the reduction step. The life of the absorbent can be extended and operational costs may be reduced.

8. 发明专利

DE69116828T2 未知
公开(公告)号：DE69116828T2
公开(公告)日：1996-05-30
申请号：DE69116828
申请日：1991-11-18
申请人： MITSUBISHI HEAVY IND LTD
发明人： SAKAI MASAYASU , SETO TOURU , KANEKO MASATO , HADA MICHIO , KINOMOTO TOSHIAKI
IPC分类号： D21C5/00

9. 发明专利

DK0502596T3 未知
公开(公告)号：DK0502596T3
公开(公告)日：1996-01-29
申请号：DK92250053
申请日：1992-03-06
申请人： KANSAI ELECTRIC POWER CO , MITSUBISHI HEAVY IND LTD
发明人： FUJII MASUMI , HOTTA YOSHITSUGU , SUDA TAIICHIRO , KOBAYASHI KENJI , YOSHIDA KUNIHIKO , SHIMOJO SHIGERU , KARASAKI MUSUNORI , IIJIMA MASAKI , TOMIKAWA FUMIO , SETO TOURU , MITSUOKA SHIGEAKI
IPC分类号： B01D53/14 , B01D53/62
摘要： An apparatus and a process for removing CO2 from a combustion exhaust gas, which comprises effecting a counterflow contact of the aqueous alkanolamine solution with the combustion exhaust gasto attain removal of CO2 from said gas and effecting a further contact of either (1) the condensate waterformed by causing condensation of the gas having been subjected to the removal of CO2 or (2) the condensate water formed by causing condensation of the combustion exhaust gas originated from the combustion of the fuel with the combustion exhaust gas, as the first and the second aspect of the invention; an apparatus for removing CO2 from a combustion exhaust gas, which comprises a first contact means disposed in said exhaust line for effecting a counterflow contact of the aqueous alkanolamine solution with the combustion exhaust gas and a second contact means disposed downstream of said first contact means in said exhaust line for effecting a counter flow contact of the reflux water from a spent absorbent liquor regenerating tower with said gas having been subjected to the removal of CO2, as the third aspect; and a process for removing CO2 using an apparatus of the above aspect, which comprises adjusting the temperature of the aqueous alkanolamine solution to be supplied to said CO2-removing means, in such a manner that the temperature of the gas at the entrance of the CO2-removing means and that at the exit of the CO2-removing means become the same, as the fourth aspect.

10. 发明专利

NO914449D0 未知
公开(公告)号：NO914449D0
公开(公告)日：1991-11-13
申请号：NO914449
申请日：1991-11-13
申请人： MITSUBISHI HEAVY IND LTD
发明人： SAKAI MASAYASU , SETO TOURU , KANEKO MASATO , HADA MICHIO , KONOMOTO TOSHIAKI
IPC分类号： D21C5/00 , C08B

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