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1. (WO2019023925) ELECTRIC HEATING OF BOILER FEEDWATER IN THE MANUFACTURE OF PURIFIED AROMATIC CARBOXYLIC ACIDS
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Pub. No.: WO/2019/023925 International Application No.: PCT/CN2017/095405
Publication Date: 07.02.2019 International Filing Date: 01.08.2017
IPC:
C07C 51/42 (2006.01) ,C07C 51/16 (2006.01) ,C07C 63/26 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
51
Preparation of carboxylic acids or their salts, halides, or anhydrides
42
Separation; Purification; Stabilisation; Use of additives
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
51
Preparation of carboxylic acids or their salts, halides, or anhydrides
16
by oxidation
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
63
Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings
14
Monocyclic dicarboxylic acids
15
all carboxyl groups bound to carbon atoms of the six-membered aromatic ring
26
1,4-Benzenedicarboxylic acid
Applicants:
BP CORPORATION NORTH AMERICA INC. [US/US]; 501 Westlake Park Boulevard Houston, Texas 77079, US
Inventors:
CLARK, Frederick; US
BARTOS, Thomas; US
LIANG, Xiaolin; US
Agent:
CHINA SINDA INTELLECTUAL PROPERTY LTD.; B11th Floor, Focus Place 19 Financial Street, Xicheng District Beijing 100033, CN
Priority Data:
Title (EN) ELECTRIC HEATING OF BOILER FEEDWATER IN THE MANUFACTURE OF PURIFIED AROMATIC CARBOXYLIC ACIDS
(FR) CHAUFFAGE ÉLECTRIQUE D'EAU D'ALIMENTATION DE CHAUDIÈRE DANS LA FABRICATION D'ACIDES CARBOXYLIQUES AROMATIQUES PURIFIÉS
Abstract:
(EN) Processes for manufacturing purified aromatic carboxylic carboxylic acids includes: generating high-pressure steam (402) from boiler feed water supplied to a boiler (404); heating a crude aromatic carboxylic acid using the high-pressure steam (402), whereby the high pressure steam (402) is condensed to form a high-pressure condensate (426); and purifying the crude aromatic carboxylic acid to form a purified aromatic carboxylic acid. The boiler feed water includes at least a portion of the high-pressure condensate (426) and makeup boiler feed water from at least one additional source. The recycled high-pressure condensate (426) is pre-heated with an electric heater (480) using electricity generated in an off-gas treatment zone (350).
(FR) L'invention porte sur des procédés de fabrication d'acides carboxyliques aromatiques purifiés, lesdits procédés consistant à : générer de la vapeur d'eau à haute pression (402) à partir d'eau d'alimentation de chaudière fournie à une chaudière (404) ; chauffer un acide carboxylique aromatique brut à l'aide de vapeur à haute pression (402), la vapeur à haute pression (402) étant condensée pour former un condensat (426) à haute pression ; et procéder à la purification de l'acide carboxylique aromatique brut pour former un acide carboxylique aromatique purifié. L'eau d'alimentation de chaudière comprend au moins une partie du condensat (426) à haute pression et de l'eau d'alimentation d'appoint de chaudière provenant d'au moins une source supplémentaire. Le condensat (426) à haute pression recyclé est préchauffé avec un dispositif de chauffage électrique (480) à l'aide d'électricité générée dans une zone de traitement (350) des gaz d'échappement.
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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)