Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received April 6, 2014
Accepted June 12, 2014
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
Modeling and analysis of a syngas cooler with concentric evaporator channels in a coal gasification process
School of Mechanical Engineering, Sungkyunkwan University, Suwon 440-746, Korea 1Coal Conversion System Development Team, Corporate R&D Institute, Doosan Heavy Industries & Construction, Daejeon 305-811, Korea
Korean Journal of Chemical Engineering, December 2014, 31(12), 2136-2144(9), 10.1007/s11814-014-0164-6
Download PDF
Abstract
Coal gasification offers a flexible and efficient conversion of the solid fuel into CO- and H2-rich synthetic gas (syngas) for production of various chemicals and energy products. Since the hot syngas leaving a gasifier contains various impurities such as acidic gases and particulates, it needs to be cooled down for cleaning prior to conversion into the final product. A dedicated heat exchanger called a syngas cooler (SGC) is used to lower the gas temperature while recovering the thermal energy. This study investigated the heat transfer characteristics in a commercial-scale SGC consisting of a series of concentric helical coil channels. First, the detailed flow and heat transfer pattern in the unique heat exchanger were analyzed using computational fluid dynamics (CFD) for various operating loads and fouling conditions. The predicted heat transfer rate was used to derive correlations for Nusselt number for the channel sections of the SGC. Second, a one-dimensional model of the equipment was proposed for fast-response process simulations. In terms of heat transfer rate and gas temperature, the process model showed a reasonable accuracy compared to the CFD results for the tested cases.
References
Park K, Shin D, Lee G, Yoon ES, Korean J. Chem. Eng., 29(9), 1129 (2012)
Higman C, State of the gasification industry-the updated worldwide gasification database, Gasification Technologies Conf., Colorado Springs, CO, USA, Oct. 16 (2013)
Fernando R, Coal gasification, CCC/140, IEA Clean Coal Centre (2008)
Ni JJ, Yu GS, Guo QH, Liang QF, Zhou ZJ, Ind. Eng. Chem. Res., 49(9), 4452 (2010)
Ni JJ, Yu GS, Guo QH, Dai ZH, Wang FC, Chem. Eng. Sci., 66(3), 448 (2011)
Martelli E, Kreutz T, Carbo M, Consonni S, Jansen D, Appl. Energy, 88(11), 3978 (2011)
Yang Z, Liu Y, Cao Z, Int. J. Chem. React. Eng., 9, 85 (2011)
Higman C, van der Burgt M, Gasification, 2nd Ed., Gulf Professional Publishing, Oxford, UK (2008)
Botero C, Field RP, Brasington RD, Herzog HJ, Ghoniem AF, Ind. Eng. Chem. Res., 51(36), 11778 (2012)
Yu GS, Ni JJ, Liang QF, Guo QH, Zhou ZJ, Ind. Eng. Chem. Res., 48(22), 10094 (2009)
Ye IS, Park S, Ryu C, Park SK, Appl. Therm. Eng., 58, 11 (2013)
Park S, Ye IS, Oh J, Ryu C, Koo JH, Appl. Therm. Eng., Submitted (2014)
Gnielinski V, Heat transfer and pressure drop in helically coiled tubes, Proc. 8th Int. Heat Transfer Conf., 6, 2847 (1986)
Yang Z, Zhao Z, Liu Y, Chang Y, Cao Z, Exp. Therm. Fluid Sci., 35, 1427 (2011)
Zhao Z, Wang X, Che D, Cao Z, Int. Comm. Heat Mass., 38, 1189 (2011)
Zbogar A, Frandsen FJ, Jensen PA, Glarborg P, Prog. Energy Combust. Sci., 31, 371 (2005)
Mills KC, Rhine JM, Fuel, 68, 904 (1989)
Shih TH, Liou WW, Shabbir A, Yang Z, Zhu J, Comput. Fluids, 24, 227 (1995)
Smith TF, Shen ZF, Friedman JN, J. Heat Trans., 104, 602 (1982)
ANSYS Inc., ANSYS FLUENT 13 User’s Guide, Nov., Canonsburg, PA, USA (2010)
Bowen BD, Fournier M, Grace JR, Int. J. Heat Mass Trans., 34, 1043 (1991)
Higman C, State of the gasification industry-the updated worldwide gasification database, Gasification Technologies Conf., Colorado Springs, CO, USA, Oct. 16 (2013)
Fernando R, Coal gasification, CCC/140, IEA Clean Coal Centre (2008)
Ni JJ, Yu GS, Guo QH, Liang QF, Zhou ZJ, Ind. Eng. Chem. Res., 49(9), 4452 (2010)
Ni JJ, Yu GS, Guo QH, Dai ZH, Wang FC, Chem. Eng. Sci., 66(3), 448 (2011)
Martelli E, Kreutz T, Carbo M, Consonni S, Jansen D, Appl. Energy, 88(11), 3978 (2011)
Yang Z, Liu Y, Cao Z, Int. J. Chem. React. Eng., 9, 85 (2011)
Higman C, van der Burgt M, Gasification, 2nd Ed., Gulf Professional Publishing, Oxford, UK (2008)
Botero C, Field RP, Brasington RD, Herzog HJ, Ghoniem AF, Ind. Eng. Chem. Res., 51(36), 11778 (2012)
Yu GS, Ni JJ, Liang QF, Guo QH, Zhou ZJ, Ind. Eng. Chem. Res., 48(22), 10094 (2009)
Ye IS, Park S, Ryu C, Park SK, Appl. Therm. Eng., 58, 11 (2013)
Park S, Ye IS, Oh J, Ryu C, Koo JH, Appl. Therm. Eng., Submitted (2014)
Gnielinski V, Heat transfer and pressure drop in helically coiled tubes, Proc. 8th Int. Heat Transfer Conf., 6, 2847 (1986)
Yang Z, Zhao Z, Liu Y, Chang Y, Cao Z, Exp. Therm. Fluid Sci., 35, 1427 (2011)
Zhao Z, Wang X, Che D, Cao Z, Int. Comm. Heat Mass., 38, 1189 (2011)
Zbogar A, Frandsen FJ, Jensen PA, Glarborg P, Prog. Energy Combust. Sci., 31, 371 (2005)
Mills KC, Rhine JM, Fuel, 68, 904 (1989)
Shih TH, Liou WW, Shabbir A, Yang Z, Zhu J, Comput. Fluids, 24, 227 (1995)
Smith TF, Shen ZF, Friedman JN, J. Heat Trans., 104, 602 (1982)
ANSYS Inc., ANSYS FLUENT 13 User’s Guide, Nov., Canonsburg, PA, USA (2010)
Bowen BD, Fournier M, Grace JR, Int. J. Heat Mass Trans., 34, 1043 (1991)
