Characterization of fuel briquettes made from a blend of rice husk and palm oil mill sludge

Biomass Conversion and Biorefinery - Tập 6 - Trang 449-456 - 2016
Okey Francis Obi1, Kingsley Chukwudi Okongwu1
1Agricultural and Bioresources Engineering Department, Faculty of Engineering, University of Nigeria, Nsukka, Nigeria

Tóm tắt

In this study, the physical and combustion properties of briquettes produced from a blend of palm oil mill sludge (POMS) and rice husk were investigated. The POMS was blended with rice husk in the ratios of 1:10, 1:5, 3:10, 2:5, 1:2, 3:5, 7:10, 4:5, 9:10, and 1:1. The result showed that the increased addition of palm oil mill sludge in rice husk sample significantly influenced (p < 0.05) the physical and combustion properties of the briquettes produced. The mean values recorded for the compressed and relaxed densities, durability rating, and the water resistance were all observed to increase while the relaxation ratio decreased. The moisture content, volatile matter, heating value, and the elemental composition of the rice husk-POMS briquette blend also increased while the fixed carbon and the ash content decreased. The 1:1 blending ratio presented the best quality within the range of the blending ratios considered. The physical properties of the briquette at the 1:1 blending ratio were compressed density (1044.93 kg/m3), relaxed density (498.55 kg/m3), relaxation ratio (2.10), durability rating (99.61 %), and water resistance (25.24 h). The combustion properties were moisture content (10.42 % w.b.), volatile matter (76.23 %), ash content (15.13 %), fixed carbon (8.64 %), heating value (21.68 MJ/kg), carbon (40.19 %), hydrogen (5.18 %), oxygen content (38.91 %), sulfur (0.39 wt%), and nitrogen (1.61 wt%).

Tài liệu tham khảo

Awasthi M, Deepika KR (2013) Biochemical characterization of agricultural residues for utilization in gasification process: a necessity for rural sector. Spec Issue Int J Sustain Dev Green Econ 2(1–2):22–26

Wakchaure GC, Indra M (2009) Effect of binders on the physical quality of some biomass briquettes. J Agr Eng 46(4):24–30

Adapa PK, Singh A, Schoenau GJ, Tabil LG (2006) Pelleting characteristics of fractionated alfalfa grinds – hardness models. International Journal of Powder Handling and Processing 18(5):294–299

Obi OF, Akubuo CO, Okonkwo WI (2013) Development of an appropriate briquetting machine for use in rural communities. International Journal of Engineering and Advanced Technology 2(4):578–582

ASTM (2004) Standard E711-87: Standard test method for gross calorific value of refuse-derived fuel by the bomb calorimeter. West Conshohocken, PA, USA

Jindaporn J, Chadchawan P, Aurawan T, Songchai W (2005) Physical properties and combustion performance of briquettes produced from two pairs of biomass species. ENETT 49-137:27–29