Korean Journal of Chemical Engineering, Vol.33, No.4, 1159-1169, April, 2016
Heat transfer of bio-oil in a direct contact heat exchanger during condensation
E-mail:
Rapid quenching of volatiles in fast pyrolysis is important for achieving high yield and quality of the bio-oil product, but few studies have examined the condensation of volatiles and their related heat exchangers. Accordingly, we have studied the condensation characteristics of volatiles by varying heat transfer conditions in a direct contact heat exchanger. As the mass flow rate ratio of quenching oil to pyrolysis gas increased, the heat transfer rate and yield of bio-oil increased. The heat transfer rate and yield of bio-oil reached a maximum value at an intermediate air-toquenching oil mass flow rate ratio. Additionally, the heat transfer rate and yield of bio-oil decreased as the temperature of the quenching oil increased. Experiments were also conducted to derive an empirical relationship for the volumetric heat transfer coefficient for direct contact heat exchangers.
- Venderbosch RH, Prins W, Biofuels, Bioprod. Biorefin., 4, 178 (2010)
- Czernik S, Bridgwater AV, Energy Fuels, 18(2), 590 (2004)
- Bridgwater AV, Meier D, Radlein D, Org. Geochem., 30, 1479 (1999)
- Diebold JP, Bridgwater AV, in Fast Pyrolysis of Biomass: a Handbook, CPL Press, London (1999).
- Mohan D, Pittman CU, Steele PH, Energy Fuels, 20(3), 848 (2006)
- Jung SH, Kang BS, Kim JS, J. Anal. Appl. Pyrolysis, 82, 240 (2008)
- Chen T, Deng C, Liu R, Energy Fuels, 24, 6616 (2010)
- Song M, Steiff A, Weinspach PM, Chem. Eng. Sci., 54(17), 3861 (1999)
- Zhang HY, Xiao R, Huang H, Xiao G, Bioresour. Technol., 100(3), 1428 (2009)
- Asadullah M, Rahman MA, Ali MM, Rahman MS, Motin MA, Sultan MB, Alam MR, Fuel, 86(16), 2514 (2007)
- Salehi E, Abedi J, Harding T, Energy Fuels, 23(7), 3767 (2009)
- Boateng AA, Daugaard DE, Goldberg NM, Hicks KB, Ind. Eng. Chem. Res., 46(7), 1891 (2007)
- Westerhof RJM, Kuipers NJM, Kersten SRA, van Swaaij WPM, Ind. Eng. Chem. Res., 46, 9238 (2009)
- Lu Q, Yang XL, Zhu XF, J. Anal. Appl. Pyrolysis, 82, 191 (2008)
- Zheng JL, Yi WM, Wang NN, Energy Conv. Manag., 49(6), 1724 (2008)
- Westerhof RJM, Brilman DWF, Garcia-Perez M, Wang ZH, Oudenhoven SRG, van Swaaij WPM, Kersten SRA, Energy Fuels, 25(4), 1817 (2011)
- Jarboe LR, Wen ZY, Choi DW, Brown RC, Appl. Microbiol. Biotechnol., 91(6), 1519 (2011)
- Karlsson V, Nilsson L, Appl. Therm. Eng., 79, 9 (2015)
- Gustavsson C, Nilsson L, Energy Fuels, 27, 5313 (2013)
- Choi HS, Choi YS, Park HC, Korean J. Chem. Eng., 27(4), 1164 (2010)
- Weerachanchai P, Tangsathitkulchai C, Tangsathitkulchai M, Korean J. Chem. Eng., 28(12), 2262 (2011)
- Pollard AJS, Comparison of Bio-oil Produced in a Fractionated Bio-oil Collection System, Master’s Thesis, Iowa State University, Ames, IA (2009).
- Choi HS, Choi YS, Park HC, Renew. Energy, 42, 131 (2012)
- Park HC, A Study on Condensation Heat Transfer Characteristics of Bio-crude Oil in Direct Contact Heat Exchanger, Master’s Thesis, Chungnam National University, Daejeon, Republic of Korea (2010).
- Garcia-Perez M, Garcia-Nunez JA, Lewis T, Kruger C, Kantor S, Methods for Producing Biochar and Advanced Bio-fuels in Washington State. Part 3: Literature Review of Technologies for Product Collection and Refining, Third Project Report, Department of Biological Systems Engineering and the Center for Sustaining Agriculture and Natural Resources, Washington State University, Pullman, WA (2011).
- Bejan A, Kraus AD, Heat Transfer Handbook, Wiley, Hoboken, NJ (2003).
- Lu Q, Li WZ, Zhu XF, Energy Conv. Manag., 50(5), 1376 (2009)
- Zhang L, Multicomponent drop vaporization modeling of petroleum and biofuel mixtures, Doctor’s Thesis, Iowa State University, Iowa, USA (2011).
- Kennedy JB, J. Eng. Gas Turbines Power, 108, 191 (1986)
- Solantausta Y, Oasmaa A, Sipila K, Lindfors C, Lehto J, Autio J, Jokela P, Alin J, Heiskanen J, Energy Fuels, 26(1), 233 (2012)
- Chan TS, Yuen MC, J. Heat Transf. -Trans. ASME, 112, 1092 (1990)
- Lehto J, Oasmaa A, Solantausta Y, Kyto M, Chiaramonti D, Fuel Oil Quality and Combustion of Fast Pyrolysis Bio-oils, VTT Technology, VTT Technical Research Center, Finland (2013).