DEVELOPMENT OF ALLOTHERMAL GASIFICATION BY A DUAL FLUIDIZED BED TECHNOLOGY
DOI:
https://doi.org/10.30556/imj.Vol17.No1.2014.341Keywords:
coal gasification, allothermal, dual fluidized bed, process development unit, pressure loop, syngasAbstract
Allothermal gasification is a gasification process which separates oxidation process and other processes. So that, synthesis gas (syngas) could be produced from gasification with air as gasification agent. The main feature of allothermal gasification is how to transfer the heat of oxidation reaction to supply heat required for drying, pyrolysis and reduction processes. One of the techniques is to circulate bed material using a dual fluidized bed. Pressure loop and syngas composition resulted from gasification test is discussed. Pressure loop data of the Process Development Unit (PDU) facility showed a stable condition and resulted a continous circulation of the bed material. Therefore, heat transfer of oxidation reaction into a gasifier proceeded in a continous and stable way. A good heat transfer of the heat of oxidation reaction resulted a good quality of syngas where the composi- tion of H2 was close to 50% and the ratio of H2/CO was >2% which is suitable for chemical feedstockReferences
Basu, P., 2006. Combustion and gasification in fluidized beds. Taylor and Francis Group, LLC.
Diniyati, D., Suprapto,S., Nurhadi, Yaskuri, D., Yus- nanto, Saputra, R. and Ropik, 2012. Pembuatan Hot Model Fluidized Bed. Laporan Akhir Kegiatan Tim, Puslitbang tekMIRA, Badan Litbang ESDM, tahun anggaran 2012.
Fujimori, T., Suda, T., Matsuzawa, K., Kubota, N. and Tani, H., 2007. A Novel Twin Fluidized bed Gasifi- cation Process for Low Rank Coal. 6th Asia-Pasific Conference on Combustion, Nagoya Congress Center, Japan, 20-23 May 2007.
Higman, C. and van der Burgt, M., 2008. Gasification, 2nd ed., Gulf Professional Publishing, Elsevier Inc., Burlington, MA01803, USA, p. 99.
Hofbauer, H., and Rauch, R., 2000. Stoichiometric water consumption of steam gasification by the FICFB- gasification Process. Progress in thermochemical biomass conversion, Innsbruck September 2000, http://www.ficfb.at/pub.htm
Hofbaeur, H., Rauch, R. and Bosch, K., 2002. Biomass CHP Plant Gussing – A succes story. Expert meet- ing on pyrolysis and gasification of biomass and waste, October 2002, Strasbourg, France, http:// www.ficfb.at/pub.htm
Kehlenbeck, R., Yates, J., di Felice, R., Hofbaeur, H. and Rauch, R., 2001. Novel Scaling parameter for circulating fluidized beds. American Instituteof Chemical Engineers (AIChE) Journal, Vol. 47, No. 3, March 2001, p.582 - 589.
Kern, S., Pfeifer, C. and Hofbauer, H., 2010. Dual fluidized-bed steam gasification of solid feedstock: Matching syngas requirements with fuel mixtures. http://saiche-co-za.win17.wadns.net/files/filedoc/V17%20n1%202012%20pp%2013-24%20Kern.pdf.
Meijden, C.M., Veringa, H.J., Drift, A., and Vreugdenhil, B.J., 2008. The 800 kWth allothermal biomass gas- ification Milena. Presentation at the European Bio- mass Conference and Exhibition, Valencia, 2008, http://www.milenatechnology.com/publications/.
Paisley, M.A., Irving, J.M., and Overend, R.P., 2001. A promising power option – The ferco SILVAGASTM biomass gasification process – operating experi- ence at the Burlington gasifier, Proceeding of ASME Turbo Expo 2001, ASME Turbo Expo Land, Sea, & Air 2001, June 4 – 7, 2001.
Schmid, J.C., Pfeifer, C., Kitzler, H., Pröll, T. and Hofbauer, H., 2011. A new dual fluidized bed gasifier design for improved in situ conversion of hydrocarbon. Proc. Int. Conf. on polygeneration strategies (ICPS), Viena, Austria.
Suda, T., Takafuji, M., Matsuzawa, Y. And Fujimori, T., 2007. Gasification of Lignite Using Circulating Flu- idized Bed Gasifi , Annual International Pittsburgh Coal Conference-CD-ROM Ed., 195 International Pittsburgh Coal Conference 24th, International Pittsburgh Coal Conference.
Downloads
Issue
Section
License
Indonesian Mining Journal provides immediate open access to its content on the principle that making research freely available to the public to supports a greater global exchange of knowledge.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
