Mass transport correlation for CO2 absorption in aqueous monoethanolamine in a continuous film contactor

被引：24

作者：

Akanksha ^{[1
]}

Pant, K. K. ^{[1
]}

Srivastava, V. K. ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Chem Engn, New Delhi 110016, India

[2] ABES Coll, Ghaziabad, India

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2008年 / 47卷 / 05期

关键词：

continuous film contactor; mass transport; absorption; CO2-MEA;

D O I：

10.1016/j.cep.2007.02.008

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

CO2 absorption in monoethanolamine for the case of counter current gas-liquid flow in a continuous film contactor has been experimentally reported. Attempt has been made to develop an empirical correlation capable of capturing the non-uniformity of liquid flow to estimate the mass transfer effect. The correlation for the gas phase mass transfer coefficient in terms of dimensionless group is represented as: Sh(G) = 0.0387 Re-G(0.66) Re-L(0.115) Sc-G(0.5) It was observed that the mass transfer rate strongly depends on gas and liquid flow rates. The proposed relationship gives a simple and direct method of incorporating the enhancement in mass transfer rate due to wavy liquid film. The mean deviation in the Sh(G) calculated is about 3.9% of the Sh(G), deduced from the experimental measurements. The study therefore provides test data and a cot-relation for the mass transfer process that is validated against extensive experimental data. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：920 / 928

页数：9

共 30 条

[1] Heat and vapor transfer in a wetted-wall tower [J].

Barnet, WI ;

Kobe, KA .

INDUSTRIAL AND ENGINEERING CHEMISTRY, 1941, 33 :436-442

[2]

BLAUWHOFF PMM, 1984, CHEM ENG SCI, V39, P207, DOI 10.1016/0009-2509(84)80021-4

[3] GE))GAS-SIDE MASS TRANSFER COEFFICIENT AT A FALLING FILM [J].

BRAUN, D ;

HIBY, JW .

CHEMIE INGENIEUR TECHNIK, 1970, 42 (06) :345-&

[4]

Charpentier J.-C., 1981, Adv. Chem. Eng., P1, DOI [10.1016/S0065-2377(08)60025-3, DOI 10.1016/S0065-2377(08)60025-3]

[5]

Critchfield J., 1987, AICHE NAT M HOUST TX

[6] Ab initio study of the reaction of carbamate formation from CO2 and alkanolamines [J].

da Silva, EF ;

Svendsen, HF .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2004, 43 (13) :3413-3418

[7]

Danckwerts P.V., 1970, GAS LIQUID REACTION

[8] REACTION OF CO2 WITH ETHANOLAMINES [J].

DANCKWERTS, PV .

CHEMICAL ENGINEERING SCIENCE, 1979, 34 (04) :443-446

[9] Gas-solid and gas-liquid mass-transfer coefficients [J].

Dudukovic, A ;

Milosevic, V ;

Pjanovic, R .

AICHE JOURNAL, 1996, 42 (01) :269-270

[10]

ELVERS B, ULLMANNS ENCY IND B, V4

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