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1. (WO2018220520) PLANT FOR THE ABATEMENT OF NITROGEN OXIDES AND THEIR MIXTURES PRESENT IN THE FUMES OF PARALLEL FLOW RIGENERATIVE LIME KILNS
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Pub. No.: WO/2018/220520 International Application No.: PCT/IB2018/053796
Publication Date: 06.12.2018 International Filing Date: 29.05.2018
IPC:
F27B 1/00 (2006.01) ,B01D 53/86 (2006.01) ,B01D 53/90 (2006.01) ,F23J 15/00 (2006.01) ,F27D 17/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27
FURNACES; KILNS; OVENS; RETORTS
B
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
1
Shaft or like vertical or substantially vertical furnaces
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34
Chemical or biological purification of waste gases
74
General processes for purification of waste gases; Apparatus or devices specially adapted therefor
86
Catalytic processes
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34
Chemical or biological purification of waste gases
74
General processes for purification of waste gases; Apparatus or devices specially adapted therefor
86
Catalytic processes
90
Injecting reactants
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
J
REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
15
Arrangements of devices for treating smoke or fumes
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27
FURNACES; KILNS; OVENS; RETORTS
D
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
17
Arrangement for using waste heat; Arrangement for using, or disposing of, waste gases
Applicants:
CIMPROGETTI S.R.L. [IT/IT]; Via Pasubio, 5 24044 Dalmine (BG), IT
Inventors:
RIZZI, Pierluigi; IT
SARANDREA, Luca; IT
COLOMBARI, Valerio; IT
Agent:
GATTI, Enrico; IT
RIPAMONTI, Enrico; IT
KRATTER, Carlo; IT
OTTAZZO, Marco Francesco Agostino; IT
Priority Data:
10201700005965031.05.2017IT
Title (EN) PLANT FOR THE ABATEMENT OF NITROGEN OXIDES AND THEIR MIXTURES PRESENT IN THE FUMES OF PARALLEL FLOW RIGENERATIVE LIME KILNS
(FR) INSTALLATION POUR LA RÉDUCTION D'OXYDES D'AZOTE ET DE LEURS MÉLANGES PRÉSENTS DANS LES FUMÉES DE FOURS À CHAUX RÉGÉNÉRATIVE À FLUX PARALLÈLE
Abstract:
(EN) A plant for the abatement of nitrogen oxides and their mixtures present in the fumes of parallel-flow regenerative lime kilns, comprising a first ducting (11), which collects the combustion fumes coming from the outlet of the two shafts of said kiln (10); said plant being characterized in that it comprises: a heater (20) for heating the fumes flowing in said ducting (11) and supplying heated fumes to a second ducting (24); an injector (21) for injecting an ammonia solution into said second ducting (24), which is mixed with the flowing fumes; a third ducting (25), exiting from said injector (21), which carries said ammonia solution and said flowing fumes to a filter (32), said filter (32) being a catalytic filter; and a fourth ducting (34), downstream of said filter (32), which carries the residual fumes to a stack (36); said heater (20) heating the fumes to a temperature higher than 150°C; said injector (21) injecting into said second ducting (24) an amount of ammonia solution lower than 5 l/h; and said catalytic filter (32) comprising a vanadium-oxide-based catalytic fabric.
(FR) Installation pour la réduction d'oxydes d'azote et de leurs mélanges présents dans les fumées de fours à chaux régénérative à flux parallèle, comprenant une première conduite (11), qui collecte les fumées de combustion provenant de la sortie des deux arbres dudit four (10); ladite installation étant caractérisée en ce qu'elle comprend : un dispositif de chauffage (20) pour chauffer les fumées s'écoulant dans ladite conduite (11) et apporter les fumées chauffées à une deuxième conduite (24); un injecteur (21) pour injecter une solution d'ammoniac dans ladite deuxième conduite (24), qui est mélangée aux fumées s'écoulant; une troisième conduite (25), sortant dudit injecteur (21), qui transporte ladite solution d'ammoniac et lesdites fumées d'écoulement vers un filtre (32), ledit filtre (32) étant un filtre catalytique; et une quatrième conduite (34), en aval dudit filtre (32), qui transporte les fumées résiduelles vers un pieu (36); ledit dispositif de chauffage (20) chauffant les fumées à une température supérieure à 150 °C; ledit injecteur (21) injectant dans ladite deuxième conduite (24) une quantité de solution d'ammoniac inférieure à 5 l/h; et ledit filtre catalytique (32) comprenant un tissu catalytique à base d'oxyde de vanadium.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Italian (IT)