Fuel Characteristics Of Selected Four-Year-Old Trees In Nigeria

Authors

  • Poo Chow
  • E. Babajide Lucas

Keywords:

Cassia, eucalyptus, extractives, fuelwood, gliricidia, gmelina, heat content, juvenile wood, lignin, short-rotation, tetracarpidium

Abstract

With the rising cost and decreasing availability of fuelwood, fossil fuels, and fossil-based chemical feedstock in the future, there is renewed interest in using renewable, plantation-grown, tropical wood biomass as an energy source or chemical feedstock. There is, however, a lack of information on the basic fuel characteristics and chemical constituents of short-rotation, juvenile, tropical wood biomass. Content of hot-water extractive, alcohol-benzene extractive, lignin, gross heat, sulfur, and ash were determined for the samples, as well as specific gravity and results of the proximate analysis (volatile matter, ash, and fixed carbon), and the ultimate analysis (C, H, N, S, O, and ash). These properties were determined on five short-rotation tree species, a tree nut-shell, and a commercial bituminous coal. Test specimens included stems of four-year-old gmelina, eucalyptus, cassia, teak, gliricidia, and nut-shells of tetracarpidium trees all grown in Nigerian fuelwood plantations near Ibadan. Based on chemical and fuel composition, most of the juvenile tropical species and the tree nut-shells could serve as a raw material for energy in fuelwood and charcoal industries, as well as for chemical industries.

References

American Society For Testing And Materials (ASTM). 1982. Standard method of testing wood. Part 22, ASTM, and Standard method of testing coal and coke, part 26, ASTM, Philadelphia, PA.nBrown, H. P., A. J. Panshin, and C. C. Forsaith. 1952. Textbook of wood technology, vol. 2. McGraw-Hill, NY.nBrowning, B. L. 1973. The chemistry of wood. John Wiley, NY.nChow, P., G. L. Rolfe, C. S. Lee, and T. A. White. 1983a. Chemical properties of two-year-old deciduous species. J. Appl. Polymer Sci.: Applied Polymer Symposium 37:557-575.nChow, P., G. L. Rolfe, and D. F. T. Wei. 1983b. The ultimate and proximate analysis of some juvenile deciduous biomass. American Chemical Society, Abstract: No. 25, Cellulose, Paper, and Textile Div., 186th ACS Nat. Meeting, Washington, DC.nForest Products Research Laboratory (FPRL). 1965. Tectona grandis (Teak) FPRL Report No. 3. Fed. Ministry of Information, Lagos, Nigeria.nForest Products Research Laboratory (FPRL). 1977. Energy and the wood products industry. Proc. No. P-76-14, 173 pp. FPRS, Madison, WI.nHoward, E. T. 1973. Heat of combustion of various southern pine materials. Wood Science 5(3):194-197.nHutchinson, J., and J. M. Dalziel. 1958. Flora of west tropical Africa, vol. 1, part 2. London. Pp. 410.nLucas, E. B. 1978. The forest, a renewable source of energy. Proc. of the First Energy Conf., Nat. Policy Development Center, Nigeria.nLucas, E. B. 1979. The efficient use of wood as energy source for domestic purposes. Proc. 9th Forestry Assoc. of Nigerian Conf., Ibadan, Nigeria.nNational Academy Of Sciences (NAS) 1983. Firewood crops, shrub and tree species for energy production, vol. 2. Washington, DC.nNitrogen Fixing Tree Association (NFTA). 1984. Gliricidia—Its name tells its story. NFT Highlights. (84-4). NFTA, Hawaii.nOjo, G. O. A. 1970. The introduction of exotics with particular reference to eucalyptus in Nigeria. Proc., Forestry Assoc. of Nigeria, Ibadan. Pp. 246-257.nOla-Adams, B. A. 1976. Dry matter production and nutrient content of a stand of coppiced Cassia siamea Lam. in Ibadan fuel plantations. Nigerian J. Forestry 6(142):63-66.nPanshin, A. J., E. S. Harris, W. J. Baker, and P. B. Procter. 1950. Forest products. McGraw-Hill, NY.nPetterson, R. C. 1984. The chemistry of solid wood. Advances in chemistry series 207. Pages 57-126 in R. Rowell, ed. Am. Chem. Soc. Washington, DC. 614 pp.n

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Published

2007-06-22

Issue

Number 4 / October 1988

Section

Research Contributions

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