scholarly journals Solid fuel characterization of torrefied coconut shells in an oxidative environment

2018 ◽  
Vol 7 (1) ◽  
pp. 145-151 ◽  
Author(s):  
Jes Tanchuling ◽  
Rizalinda De Leon
2018 ◽  
Vol 225 ◽  
pp. 01008 ◽  
Author(s):  
Muddasser Inayat ◽  
Shaharin A. Sulaiman ◽  
Muhammad Yasin Naz

This study investigated the thermochemical characterization of oil palm fronds (OPF), coconut shells (CS) and wood for their use as a solid fuel for thermal conversion processes. The ultimate analysis, proximate analysis, calorific values, and elemental contents through energy dispersive X-ray spectroscopy of OPF, CS, and wood samples were measured. The results of OPF and CS were compared with wood considered as benchmark solid fuel. Proximate analysis was performed as per ASTM standard procedure in a muffle furnace and used thermos-gravimetric analysis technique. The ultimate analysis was used to determine the weight percentage of carbon, hydrogen, and nitrogen in CHNS analyzer. Elements analysis was done using energy dispersive X-ray spectroscopy. The ultimate analysis results show carbon content was higher in CS as compared to OPF and wood. The hydrogen content was higher in OPF. Proximate analysis results revealed that volatile matter was higher in wood, whereas fixed carbon and higher heating value were found higher in CS while ash content was lower in CS. From EDX results found that the OPF has Al, Si, Cl, and K, while, in wood and CS these elements are absent. The thermochemical characterization results of OPF and CS were comparable with the wood. Therefore, it concluded that OPF and CS have the potential to be used as renewable energy source by using appropriate energy conversion technologies, such as gasification, pyrolysis, and torrefaction.


2009 ◽  
Vol 25 (5) ◽  
pp. 1086-1091 ◽  
Author(s):  
Steven J. Apperson ◽  
Andrey V. Bezmelnitsyn ◽  
Rajagopalan Thiruvengadathan ◽  
Keshab Gangopadhyay ◽  
Shubhra Gangopadhyay ◽  
...  
Keyword(s):  

2013 ◽  
Vol 92 (2) ◽  
pp. 150-162 ◽  
Author(s):  
L.T. DeLuca ◽  
L. Galfetti ◽  
F. Maggi ◽  
G. Colombo ◽  
L. Merotto ◽  
...  

2015 ◽  
Vol 4 (1) ◽  
pp. 112-120 ◽  
Author(s):  
Madhuka Roy ◽  
Krishnendu Kundu ◽  
V. R. Dahake

Enhanced rate of fossil fuel extraction is likely to deplete limited natural resources over short period of time. So search for alternative fuel is only the way to overcome this problem of upcoming energy crisis. In this aspect biofuel is a sustainable option. Agricultural lands cannot be compromised for biofuel production due to the requirement of food for the increasing population. Certain species of algae can produce ethanol during anaerobic fermentation and thus serve as a direct source for bioethanol production. The high content of complex carbohydrates entrapped in the cell wall of the microalgae makes it essential to incorporate a pre-treatment stage to release and convert these complex carbohydrates into simple sugars prior to the fermentation process. There have been researches on production of bioethanol from a particular species of algae, but this work was an attempt to produce bioethanol from easily available indigenous algae. Acid hydrolysis was carried out as pre-treatment. Gas Chromatographic analysis showed that 5 days’ fermentation by baker’s yeast had yielded 93% pure bioethanol. The fuel characterization of the bioethanol with respect to gasoline showed comparable and quite satisfactory results for its use as an alternative fuel.DOI: http://dx.doi.org/10.3126/ije.v4i1.12182International Journal of Environment Volume-4, Issue-1, Dec-Feb 2014/15, page: 112-120  


Author(s):  
Bemgba Bevan Nyakuma ◽  
Olagoke Oladokun ◽  
Aliyu Jauro ◽  
Denen Damian Nyakuma

2011 ◽  
Vol 61 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Gunnar Lars Eriksson ◽  
Christoffer Boman ◽  
Urban Bergsten ◽  
Dan Bergström

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