Hydrogen Production from Rice Straw Gasification over Modified-Limestone Catalyst

Abstract:

Malaysian limestone modified with and additions of transition metal promoters (Ni, Fe, and Co) were used for gasification of biomass. The effects of selected metal oxide loading and the addition of sodium carbonate, Na₂CO₃ as additive and its influence on limestone catalytic activity during gasification for hydrogen conversion were investigated. The catalysts were synthesized through deposition-precipitation (DP) method and characterized by using X-ray diffraction (XRD), Brunauer-Emmet-Teller (BET) surface area, thermal gravimetric analysis (TGA) and scanning electron microscopy (SEM). Temperature programmed gasification (TPG) was conducted to investigated the gasification reaction of rice straw and the product gases were analysed using online mass spectrometer. The gasification process was carried out in partial oxygen (5% O₂/Helium) environment heating from 50 to 900 °C with mass ratio biomass to catalyst of 2:1. From the results, Ni promoter was found to give the highest H₂ conversion followed by Co and Fe. The calcined limestone had shown to act as a catalyst and CO₂ sorbent thus enhancing the production of hydrogen. Moreover, additional of Na₂CO₃ during gasification process had shown a further increment of H₂ production.

• Periodical: Advanced Materials Research (Volumes 550-553)
• Pages: 488-492
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.550-553.488
• Online since: July 2012
• Authors: Mahmud Surahim, Yun Hin Taufiq-Yap, Seenivasagam Sivasangar, Abdul Rahim Nur Faizal, Mohd Zobir Hussein
• Keywords: Gasification, Hydrogen, Limestone, Rice Straw, Sodium Carbonate

References

[1] M. Marono, J.M. Sanchez, E. Ruiz: Int J Hydrogen Energ Vol. 35 (2010), p.37–45

[2] G. Schuster, G. Loffler, K. Weighl, and H. Hofbauer: Bioresource Technol Vol. 77 (2001), pp.71-79

[3] L. Devi, K.J. Ptasinski, F.J.J.G. Janssen: Fuel Process Technol Vol. 86 (2005), pp.707-730

[4] G. Xu, T. Murakami, T. Suda, S. Kusama, and T. Fujimori: Ind. Eng. Chem. Res Vol. 44 (2005), pp.5864-5868

DOI: 10.1021/ie050432o

[5] K. Ismail, M.A. Yarmo, Y.H. Taufiq-Yap, A. Ahmad: Int J Hydrogen Energ Vol. 37(4) (2012), pp.3639-3644

[6] Z. Abu El-Rub, E. A. Bramer，and G. Brem: Ind. Eng. Chem. Res Vol 43 (2004), pp.6911-6919

DOI: 10.1021/ie0498403

[7] Y. Ishida, K. Kumabe, K. Hata, K. Tanifuji, T. Hasegawa, K. Kitagawa, N. Isu, Y. Funahashi, T. Asai.: Biomass Bioenerg Vol. 33 (2009), pp.8-13

DOI: 10.1016/j.biombioe.2008.04.004

[8] S.W. Lee, S.S. Nam, S.B. Kim, K.W. Lee, C.S. Choi: Korean J. Chem. Eng Vol. 17 (2) (2000), pp.174-178