SciELO - Scientific Electronic Library Online

 
vol.17 issue2Use the residue of Pinus spp, high reactivity metakaolin and residue of ceramic calcined in wood-cement compositesProperties of laminated curves manufactured with steamed veneers from fast-growth tropical wood in Costa Rica author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • Have no similar articlesSimilars in SciELO

Share


Madera y bosques

On-line version ISSN 2448-7597Print version ISSN 1405-0471

Abstract

BALDERRAMA-CASTANEDA, Salvador et al. Feasibility of generating electricity through gasification of sawmill residues in the North of Mexico. Madera bosques [online]. 2011, vol.17, n.2, pp.67-84. ISSN 2448-7597.

The feasibility of converting sawmill residues in electricity through gasification was evaluated in two ejido sawmills, Rocheachi and Tatahuichi, in the Guachochi municipality of Chihuahua State. The area has a semi cold climate, with temperature and precipitation annual means of 10,6 oC and 800 mm, respectively; the tree cover is dominated by pine and pine-oak communities with Pinus arizonica and P. duranguensis being the main species used for logging. The residues flow was estimated and its chemical composition and heating value characterized. The selected technology was the fixed bed downdraft gasifier; the costs and specifications data were provided by a Chinese supplier. The main assumptions were: 1,3 kgDM/kwh, 80% plant factor, electricity output sold for street lighting at 80% of commercial price. The financial viability was evaluated through the configuration of (100, 200, 400 and 800) kw systems and three scenarios: base, optimistic and pessimistic. The effect of additional revenues from carbon credits sold at the voluntary market at 4, 5 and 6 US$/tCO2 was assessed. The internal rate of return (IRR) increased consistently with increasing the systems' capacity with the 800kw being the most economically attractive. Without carbon credits, the 100 kw system showed no positive values at any scenario whereas the 800 kw system was the only one with positive IRR in all the scenarios with a range of 3% to 13%; the additional revenues from carbon credits added 2,3 and 2,9% to the low and high scenarios, respectively. In the context of the study, the systems evaluated would satisfy the additionality criteria required by the carbon market.

Keywords : Electric energy; sawmill residues; gasification; feasibility.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License