Improvement of Tar Removal Performance in Biomass Gasification Using Fixed-Bed Biomass Filtration
Keywords:biomass gasification, tar depletion, biomass filter, waste treatment
AbstractSeveral studies have proven the efficiency of gasification as a thermal process in terms of material decomposition and chemical energy. Synthetic gas (syngas) is a gasification product that can be used as an energy source. However, it needs to undergo treatment to remove the tar content, which could cause several issues in the combustion system. Tar removal can be conducted through biomass filters. In this study, three types of filters were investigated: biochar, rice straw, and rice husk filters. Three thicknesses of the porous media (30, 40, and 50 cm) were investigated. The results revealed that porous media thickness significantly affects tar removal efficiency, as the efficiency was found to increase with the thickness. Biochar was proven to be the best filter media among the three types, with a tar removal efficiency of 59.45% at a thickness of 50 cm.
Ahmed, I. & Gupta, A.K., Syngas Yield during Pyrolysis and Steam Gasification of Paper, Appl. Energy, 86(9), pp. 1813-1821, Sep. 2009.
Darmawan, A., Ajiwibowo, M.W., Yoshikawa, K., Aziz, M. & Tokimatsu, K., Energy-Efficient Recovery of Black Liquor Through Gasification and Syngas Chemical Looping, Appl. Energy, 219, pp. 290-298, Jun. 2018.
Unyaphan, S., Tarnpradab, T., Takahashi, F. & Yoshikawa, K., Improvement of Tar Removal Performance of Oil Scrubber by Producing Syngas Microbubbles, Appl. Energy, 205, pp. 802-812, Nov. 2017.
Bhoi, P.R., Huhnke, R.L., Kumar, A., Patil, K.N. & Whiteley, J.R., Design And Development of A Bench Scale Vegetable Oil Based Wet Packed Bed Scrubbing System for Removing Producer Gas Tar Compounds, Fuel Process. Technol., 134, pp. 243-250, 2015.
Hasler, P. & Nussbaumer, T., Gas Cleaning for IC Engine Applications from Fixed Bed Biomass Gasification, Biomass and Bioenergy, 16(6), pp. 385-395, 1999.
Rabou, L.P.L.M., Zwart, R.W.R., Vreugdenhil, B.J. & Bos, L., Tar in Biomass Producer Gas, the Energy Research Centre of the Netherlands (ECN) Experience: an Enduring Challenge, Energy and Fuels, 23(12), pp. 6189-6198, 2009.
Shen, D.K., Gu, S. & Bridgwater, A.V., Study on the Pyrolytic Behaviour of Xylan-Based Hemicellulose Using TG-FTIR and Py-GC-FTIR, J. Anal. Appl. Pyrolysis, 87(2), pp. 199-206, 2010.
Jegers, H.E. & Klein, M.T., Primary and Secondary Lignin Pyrolysis Reaction Pathways, Ind. Eng. Chem. Process Des. Dev., 24(1), pp. 173-183, 1985.
Fuentes-Cano, D., Gomez-Barea, A., Nilsson, S. & Ollero, P., Decomposi-tion Kinetics of Model Tar Compounds over Chars with Different Internal Structure to Model Hot Tar Removal in Biomass Gasification, Chem. Eng. J., 228, pp. 1223-1233, 2013.
Devi, L., Ptasinski, K.J., Janssen, F.J.J.G., Van Paasen, S.V.B., Bergman, P.C.A. & Kiel, J.H.A., Catalytic Decomposition of Biomass Tars"i: Use of Dolomite and Untreated Olivine, Renew. Energy, 30, pp. 565-587, 2005.
Yu, H., Zhang, Z., Li, Z. & Chen, D., Characteristics of Tar Formation During Cellulose, Hemicellulose and Lignin Gasification, Fuel, 118, pp. 250-256, 2014.
Phuphuakrat, T., Namioka, T. & Yoshikawa, K., Tar Removal from Biomass Pyrolysis Gas in Two-step Function of Decomposition and Adsorption, Appl. Energy, 87(7), pp. 2203-2211, 2010.
Thapa, S., Bhoi, P.R., Kumar, A. & Huhnke, R.L., Effects of Syngas Cooling and Biomass Filter Medium on Tar Removal, Energies, 10(3), pp. 1-12, 2017.
Paethanom, A., Nakahara, S., Kobayashi, M., Prawisudha, P., & Yoshikawa, K., Performance of Tar Removal by Absorption and Adsorption for Biomass Gasification, Fuel Process. Technol., 104, pp. 144-154, 2012.
Awais, M., Li, W., Arshad, A., Haydar, Z., Yaqoob, N. & Hussain, S., Evaluating Removal of Tar Contents in Syngas Produced from Downdraft Biomass Gasification System, Int. J. Green Energy, 15(12), pp. 724-731, Sep. 2018.
Hai, I.U., Sher, F., Zarren, G. & Liu, H., Experimental Investigation of Tar Arresting Techniques and Their Evaluation for Product Syngas Cleaning from Bubbling Fluidized Bed Gasifier, J. Clean. Prod., 240, 118239, 2019.
Fu, P., Yi, W., Bai, X., Li, Z., Hu, S. & Xiang, J., Bioresource Technology Effect of Temperature on Gas Composition and Char Structural Features of Pyrolyzed Agricultural Residues, Bioresour. Technol., 102(17), pp. 8211-8219, 2011.
Darowski, A., PodkoA?cielny, P., Hubicki, Z. & Barczak, M., Adsorption of Phenolic Compounds by Activated Carbon - A Critical Review, Chemosphere, 58(8), pp. 1049-1070, 2005.
Rahman, M., Chowdhury, M.R., Jahan, S., Uddin, M.R. & Mustafa, A.I., Adsorption of Phenol from Aqueous System Using Rice Straw, Int. J. Eng. Technol., 8(4), pp. 841-846, 2011.
Sarker, N. & Fakhruddin, A.N.M., Removal of Phenol from Aqueous Solution Using Rice Straw as Adsorbent, Appl. Water Sci., 7(3), pp. 1459-1465, 2017.
Adam, F., Saraswathy, B. & Phee-Lee, W., Rice Husk Ash Silica as a New Support Material for Ruthenium Based Heterogenous Catalyst, J. Phys. Sci., 17(2), pp. 1-13, 2006.
Tarnpradab, T., Unyaphan, S., Takahashi, F. & Yoshikawa, K., Tar Removal Capacity of Waste Cooking Oil Absorption and Waste Char Adsorption for Rice Husk Gasification, Biofuels, 7(4), pp. 401-412, Jul. 2016.