Articles & Issues

Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received July 6, 2005
Accepted November 16, 2005

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.

All issues

Parametric studies on catalytic pyrolysis of coal-biomass mixturein a circulating fluidized bed

Sineenat Rodjeen Lursuang Mekasut^† Prapan Kuchontara Pornpote Piumsomboon

Fuels Research Center, Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand

lursuang.m@chula.ac.th

Korean Journal of Chemical Engineering, March 2006, 23(2), 216-223(8), 10.1007/BF02705719

Download PDF

Abstract

Pyrolysis is an efficient way of thermally converting biomass into fuel gas, liquid product and char. Inthis research, pyrolysis experiments were carried out in a circulating fluidized bed reactor with a riser diameter of 25mmand height 1.65m. The biomass used was corn cobs. The experiments were conducted systematically using two levelfactorial design with temperature ranging from 650 to 850 degree Celsius, corn cobs and catalyst contents in feed rang-ing from 0 to 100%, and from 1 to 5wt%, respectively, and Ni loaded on catalyst ranging from 5 to 9wt%. The resultsshowed that when temperature and catalyst contents in feed and Ni loaded on catalyst increased, the percent of hydro-gen and carbon monoxide increased. The amount of corn cobs was found to have an effect only on the compositionof hydrogen. Carbon dioxide was also observed to increase slightly. On the other hand, the percent of methane wasconsiderably decreased. The optimum conditions were 850 degree Celsius, corn cob content in feed of 100%, catalystcontent in feed of 5% and Ni loaded on catalyst of 9%. At this condition the percentages of hydrogen and carbon mon-oxide were 52.0 and 18.0, respectively.

Keywords

Pyrolysis Biomass Circulating Fluidized Bed Corn Cobs Experimental Design

References

Antal Jr MJ, Boer K, Duffie J, Biomass pyrolysis: a review of the literature part 1-carbohydrate pyrolysis. part 2-lignocellulose pyrolysis, Advances in Solar Energy, American Solar Energy Society, New York (1982)
Caglar A, Demirbas A, Energy Conv. Manag., 43(4), 489 (2002)
Chen G, Andries J, Spliethoff H, Energy Conv. Manag., 44(14), 2289 (2003)
Chen G, Andries J, Spliethoff H, Fang M, van de Enden PJ, Sol. Energy, 76, 345 (2004)
Courson C, Magaka E, Petit C, Kiennemann A, Catal. Today, 63, 427 (2003)
Demirbas A, Energy Sources, 24(1), 59 (2002)
Gil J, Caballero MA, Martin JA, Aznar MP, Corella J, Ind. Eng. Chem. Res., 38(11), 4226 (1999)
Lappas AA, Samolada MC, Iatridis DK, Voutetakis SS, Vasalos IA, Fuel, 81, 2087 (2002)
Lee SW, Nam SS, Kim SB, Lee KW, Choi CS, Korean J. Chem. Eng., 17(2), 174 (2000)
Rapagna S, Jand N, Kiennemann A, Foscolo PU, Biomass Bioenerg., 19(3), 187 (2000)
Tomishige K, Asadullah M, Kunimori K, Catal. Today, 89(4), 389 (2004)
Vamvuka D, Kakaras E, Kastanaki E, Grammelis P, Fuel, 82, 1949 (2003)
Vuthaluru HB, Bioresour. Technol., 92(2), 187 (2004)
Yun Y, Lee GB, Korean J. Chem. Eng., 16(6), 798 (1999)