Research article | Open Access
International Journal of Innovative Approaches in Agricultural Research 2020, Vol 4(4) 447-452

Experimental Study of Thermal Pyrolysis of Avocado Seed for Liquid Fuel Production

Article Type
Research article
Publication Date
December 25, 2020
Pages
447-452

Abstract

Bio-waste which is available in large quantities worldwide is rich in biodegradable organic matter. By utilizing from bio-waste as feedstocks to attain valuable bio-based products, resource and waste problems will be solved as being “double green”. The bio-waste utilization aids decrease pollution while providing renewable energy and bio-based chemicals for the upcoming utilizations. Consequently, bio-waste resource utilization has involved growing attention in scientific and industrial societies.

The characteristic of avocado seed as a bio-waste was analysed using elemental analysis resulted as 39.89% C, 5.43% H, 0.43% N, 45.2% O content. The higher heating value was calculated using Dulong Formula as 13.70 MJ/kg. The raw milled bio-waste was characterized by FT-IR containing the wavenumbers in the range of 4000-400 cm-1. The spectra bands for bio-waste demonstrated characteristic peaks of cellulose, hemicellulose and lignin. The mean moisture and ash contents of the “as-received” avocado seeds employed in this study were 6.54 wt% and 2.42 wt.%, respectively. Pyrolysis of avocado seed was carried out in a Heinze reactor at 500°C with a heating rate of 10°C/min and retention time of 20 min. The pyrolysis experiment yielded the liquid product (32%), solid product “char” (34%) and non-condensable gas (34%) with biomass conversion of 67%. Based on the results, it was confirmed that avocado seed can be utilized as a potential bio-waste according to pyrolysis results but liquid properties as a bio-fuel oil and solid product char properties as an activated carbon should be evaluated in detail.

Keywords: Avocado seed biomass bio-waste pyrolysis waste management
Cite this article
Yarbay Şahin, R. Z., Örenay, O., Dolaş, Y., Yargıç, A. Ş., & Özbay, N. (2020). Experimental Study of Thermal Pyrolysis of Avocado Seed for Liquid Fuel Production. International Journal of Innovative Approaches in Agricultural Research, 4(4), 447-452. https://doi.org/10.29329/ijiaar.2020.320.6

  • Durak, H., & Aysu, T. (2015). Effect of pyrolysis temperature and catalyst on production of bio-oil and bio-char from avocado seeds. Research on Chemical Intermediates, 41(11), 8067-8097. [Google Scholar]
  • Gaur, A., Tiwari, S., Kumar, C., & Maiti, P. (2020). Bio-waste orange peel and polymer hybrid for efficient energy harvesting. Energy Reports, 6, 490-496. [Google Scholar]
  • Harker JH, Backhurst JR. Fuel and energy. London: Academic Press Limited; 1981. [Google Scholar]
  • Juma, I. (2020). Production, local trade and diversity of avocado (Persea americana Mill.) in the southern highlands of Tanzania (Doctoral dissertation). [Google Scholar]
  • Ozbay, N., Yargic, A. S., & Sahin, R. Z. Y. (2018). Tailoring Cu/Al2O3 catalysts for the catalytic pyrolysis of tomato waste. Journal of the Energy Institute, 91(3), 424-433. [Google Scholar]
  • Özbay, N., Yargıç, A. Ş., Şahin, R. Z. Y., & Yaman, E. (2018). Research on the Pyrolysis Characteristics of Tomato Waste with Fe–Al2O3 Catalyst. In Exergetic, Energetic and Environmental Dimensions (pp. 815-828). Academic Press. [Google Scholar]
  • Ozbay, N., Yargic, A. S., Sahin, R. Z. Y., & Yaman, E. (2019). Valorization of banana peel waste via in-situ catalytic pyrolysis using Al-Modified SBA-15. Renewable Energy, 140, 633-646. [Google Scholar]
  • Sánchez, F., Araus, K., Domínguez, M. P., & San Miguel, G. (2017). Thermochemical transformation of residual avocado seeds: torrefaction and carbonization. Waste and Biomass Valorization, 8(7), 2495-2510. [Google Scholar]
  • Yarbay Şahin, R. Z., Yargiç, A. S., Özbay, N., & Önal, E. (2014). Removal of Phenol from Aqueous Solution Using Sugar Beet Pulp Activated Carbon. Chemical Engineering Transactions, 42, 169-174. [Google Scholar]
  • Yargic, A. S., Sahin, R. Z. Y., Ozbay, N., & Onal, E. (2013). The effect of different operating conditions on removal of reactive dye by green carbon adsorption. Journal of Selcuk University Natural and Applied Science, 498-510. [Google Scholar]