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1. (WO2018204331) CONTROLLING SLAGGING AND/OR FOULING IN FURNACES BURNING BIOMASS
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Pub. No.: WO/2018/204331 International Application No.: PCT/US2018/030404
Publication Date: 08.11.2018 International Filing Date: 01.05.2018
IPC:
B01D 53/34 (2006.01) ,B01D 53/74 (2006.01) ,C10L 10/00 (2006.01) ,C10L 10/02 (2006.01) ,C10L 10/04 (2006.01) ,F23J 7/00 (2006.01) ,F23J 15/00 (2006.01)
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
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
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
L
FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K123; LIQUEFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
10
Use of additives to fuels or fires for particular purposes
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
L
FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K123; LIQUEFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
10
Use of additives to fuels or fires for particular purposes
02
for reducing smoke development
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
L
FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K123; LIQUEFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
10
Use of additives to fuels or fires for particular purposes
04
for minimising corrosion or incrustation
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
J
REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
7
Arrangement of devices for supplying chemicals to fire
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
Applicants:
FUEL TECH, INC. [US/US]; 27601 Bella Vista Parkway Warrenvilla, IL 60555, US
Inventors:
SMYRNIOTIS, Christopher, R.; US
SARATOVSKY, Ian; US
Agent:
CARVIS, Thaddius, J.; US
Priority Data:
62/492,48501.05.2017US
Title (EN) CONTROLLING SLAGGING AND/OR FOULING IN FURNACES BURNING BIOMASS
(FR) RÉGULATION DE LA SCORIFICATION ET/OU DE L'ENCRASSEMENT DANS DES FOURS À COMBUSTION DE BIOMASSE
Abstract:
(EN) The description relates to controlling slagging and/or fouling in biomass burning furnaces. Combustion of such a biomass the fuel with air produces combustion gases containing sodium and/or potassium compositions, and the combustion gases are treated by contacting the combustion gases with kaolin and aluminum hydroxide. At least one of the kaolin and aluminum hydroxide can be introduced with the fuel, in a combustion chamber, with reburn fuel or with overfire air. For fuels also high in zinc and/or heavy metals, magnesium hydroxide is introduced into the combustion chamber or following heat exchangers.
(FR) L'invention concerne la régulation de la scorification et/ou de l'encrassement dans des fours à combustion de biomasse. La combustion d'un tel combustible de biomasse avec de l'air produit des gaz de combustion contenant des compositions de sodium et/ou de potassium, et les gaz de combustion sont traités au moyen de la mise en contact des gaz de combustion avec du kaolin et de l'hydroxyde d'aluminium. Le kaolin et/ou l'hydroxyde d'aluminium peuvent être introduits avec le combustible dans une chambre de combustion, avec du combustible de rebrûlage ou avec de l'air additionnel pour la combustion. Pour des combustibles également riches en zinc et/ou en métaux lourds, de l'hydroxyde de magnésium est introduit dans la chambre de combustion ou à la suite des échangeurs de chaleur.
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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: English (EN)