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Machine translation
1. (WO2010146670) SYSTEM FOR REMOVING MERCURY AND METHOD OF REMOVING MERCURY FROM MERCURY-CONTAINING HIGH-TEMPERATURE DISCHARGE GAS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/146670    International Application No.:    PCT/JP2009/061027
Publication Date: 23.12.2010 International Filing Date: 17.06.2009
IPC:
B01D 53/86 (2006.01), B01D 53/64 (2006.01)
Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD. [JP/JP]; 16-5, Konan 2-chome, Minato-ku, Tokyo 1088215 (JP) (For All Designated States Except US).
UKAI, Nobuyuki; (For US Only).
MURAKAMI, Moritoshi; (For US Only).
OKINO, Susumu; (For US Only).
NAGAYASU, Tatsuto; (For US Only).
KAGAWA, Seiji; (For US Only)
Inventors: UKAI, Nobuyuki; .
MURAKAMI, Moritoshi; .
OKINO, Susumu; .
NAGAYASU, Tatsuto; .
KAGAWA, Seiji;
Agent: SAKAI, Hiroaki; Sakai International Patent Office, Kasumigaseki Building, 2-5, Kasumigaseki 3-chome, Chiyoda-ku, Tokyo 1006020 (JP)
Priority Data:
Title (EN) SYSTEM FOR REMOVING MERCURY AND METHOD OF REMOVING MERCURY FROM MERCURY-CONTAINING HIGH-TEMPERATURE DISCHARGE GAS
(FR) SYSTÈME ET PROCÉDÉ D'ÉLIMINATION DU MERCURE DE GAZ DE COMBUSTION À HAUTE TEMPÉRATURE
(JA) 水銀除去システム及び水銀含有高温排ガスの水銀除去方法
Abstract: front page image
(EN)A system (10A) for mercury removal is provided which removes the NOX and mercury contained in a high-temperature discharge gas (12) discharged from a boiler (11).  The system includes: an NH4Cl supply part (15A) which sprays an NH4Cl solution (14) into the flue (13) of the boiler (11); a reducing/denitrating device (16) which includes a denitration catalyst and in which the NOX contained in the high-temperature discharge gas (12) is reduced with NH3 and the mercury is oxidized in the presence of HCl; and a wet desulfurizer (20) in which the mercury oxidized in the reducing/denitrating device (16) is removed with a lime/plaster slurry (19).  The NH4Cl supply part (15A) comprises: an NH4Cl solution supply pipe (33) through which the NH4Cl solution (14) is supplied in a liquid state into the flue (13); a blowing pipe which extends into the flue (13) so as to surround the NH4Cl solution supply pipe (33) and through which air (34) is injected into the flue (13); and a two-fluid nozzle (37) which has been attached to the end of the NH4Cl solution supply pipe (33) and from which the NH4Cl solution (14) is ejected.  The NH4Cl solution (14) is ejected from the two-fluid nozzle (37) so that the solution is sprayed as fine droplets.
(FR)L'invention porte sur un système (10A) d'élimination du NOX et du mercure de gaz de combustion (12) à haute température rejetés par une chaudière (11). Le système comporte: une alimentation en NH4Cl (15A) pulvérisant une solution (14) de NH4Cl dans la cheminée (13) de la chaudière (11); un dispositif (16) de réduction/dénitrification comprenant un catalyseur de dénitrification/dénitruration réduisant le NOX du gaz de combustion (12) avec le NH3, et oxydant le mercure en présence de HCl; et un hydrodésulfuriseur (20) éliminant le mercure oxydé dans le dispositif de réduction/dénitrification (16) à l'aide d'un coulis de chaux vive et de plâtre (19). L'alimentation en NH4Cl (15A) comporte: un tube (33) d'apport de la solution de NH4Cl (14) dans la cheminée (13); un tube de d'injection d'air (34) s'étendant dans la cheminée (13) et entourant le tube (33); et une buse d'éjection bifluide (37) fixée à l'extrémité du tube (33) et pulvérisant la solution de NH4Cl (14) en fines gouttelettes.
(JA) 本実施例に係る水銀除去システム10Aは、ボイラ11からの高温排ガス12中に含まれるNOx、Hgを除去する水銀除去システムであって、ボイラ11の煙道13内に、NH4Cl溶液14を噴霧するNH4Cl供給部15Aと、高温排ガス12中のNOxをNH3で還元すると共に、HCl共存下でHgを酸化する脱硝触媒を有する還元脱硝装置16と、還元脱硝装置16において酸化されたHgを石灰石膏スラリー19で除去する湿式脱硫装置20とを有する。NH4Cl供給部15Aは、NH4Cl溶液14を液体状で煙道13内に供給するNH4Cl溶液供給管33と、煙道13内にNH4Cl溶液供給管33を囲うように挿入され、空気34を煙道13内に噴射させる吹き込み管と、NH4Cl溶液供給管33の先端部に取り付けられ、NH4Cl溶液14を噴射する二流体ノズル37とを備える。二流体ノズル37から噴射されるNH4Cl溶液14を微細な液滴として噴霧させる。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)