Solar Biomass Pyrolysis with the Linear Mirror II


A simple and innovative prototype for biomass pyrolysis is presented, together with some experimental results. The setup uses only the thermal solar energy provided by a system of reflecting mirrors (Linear Mirror II) to heat a selected agro-waste biomass, such as wheat straw. At the end of the pyrolysis process, solar carbon with a high energy density (around 24 - 28 MJ/kg) is produced from a biomass with an energy density of 16.9 MJ/kg. The perspectives for a future industrial application of this setup are also discussed.

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Grassmann, H. , Boaro, M. , Citossi, M. , Cobal, M. , Ersettis, E. , Kapllaj, E. and Pizzariello, A. (2015) Solar Biomass Pyrolysis with the Linear Mirror II. Smart Grid and Renewable Energy, 6, 179-186. doi: 10.4236/sgre.2015.67016.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Babu, B.V. (2008) Biomass Pyrolysis: A State-of-the-Art Review. Biofuels, Bioproducts and Biorefining, 2, 393-414.
[2] Grassmann, H., Chang, T.F.M., Taverna, M. and Iseppi, L. (2013) The Solar Age: Utopia and Dystopia. How to Transform Green Waste Esternalities in Energy and Biochar. Society, Integration, Education: Utopias and Dystopias in Landscape and Cultural Mosaic—Visions Values Vulnerability, Udine, 3, 165-176. Chang, T.F.M., Iseppi, L. and Grassmann, H. (2015) Transforming Vegetal and Animal Waste Flows and Stocks in Energy through Solar “Line-ar Mirror II”, Accademia dei Lincei, Fondazione ENI-E. Matteri, La sfida dei Terawatt: quale ricerca per l'energia del futuro?, Rome.
[3] Montanarella, L. and Lugato, E. (2013) The Application of Biochar in the EU: Challenges and Opportunities. Agronomy, 3, 462-473.
[4] Verheijen, F.G.A., Jeffrey, S., Bastos, A.C., van der Velde, M. and Diafas, I. (2009) Biochar Application to Soils—A Critical Scientific Review of Effects on Soil Properties, P and Functions. EUR 24099 EN, Office for the Official Publications of the European Communities, Luxembourg, 149 p.
[5] Sohi, S.P., Krull, E., Lopez-Capel, E. and Bol, R. (2010) A Review of Biochar and Its Use and Function in Soil. Advances in Agronomy, 105, 47-82.
[6] Demirbas, A. (2001) Biomass Resource Facilities and Biomass Conversion Processing for Fuels and Chemicals. Energy Conversion and Management, 42, 1357-1378.
[7] Ateş, F. and Işlkdag, M.A. (2008) Evaluation of the Role of the Pyrolysis Temperature in Straw Biomass Samples and Characterization of the Oils by GC/MS. Energy & Fuels, 22, 1936-1943.
[8] Morales, S., Miranda, R., Bustos, D., Cazares, T. and Tran, H. (2014) Solar Biomass Pyrolysis for the Production of Bio-Fuels and Chemical Commodities. Journal of Analytical and Applied Pyrolysis, 109, 65-78.
[9] Grassmann, H., et al. (2013) First Measurements with a Linear Mirror Device of Second Generation. Smart Grid and Renewable Energy, 4, 253-258.
[10] Solar Keymark (2013)
[11] Report of Measurement According to EN 12975-2: 2006+A1:2010 (2010) Thermal Solar Systems and Components— Solar Collectors—Part 2: Test Methods.
[12] Melo, L.C.A., Coscione, A.R., Abreu, C.A., Puga, A.P. and Camargo, O.A. (2013) Influence of Pyrolysis Temperature on Cadmium and Zinc Sorption Capacity of Sugar Cane Straw-Derived Biochar. BioResources, 8, 4992-5004.
[13] Yang, Q. and Wu, S.B. (2009) Thermogravimetric Characteristics of Wheat Straw Lignin. Cellulose Chemistry and Technology, 43, 133-139.
[15] Jenkins, B.M., Baxter, L.L., Miles Jr., T.R. and Miles, T.R. (1998) Combustion Properties of Biomass. Fuel Process- ing Technology, 54, 17-46.
[16] Keiluweit, M., Nico, P.S., Johnson, M.G. and Kleber, M. (2010) Dynamic Molecular Structure of Plant Biomass-De- rived Black Carbon (Biochar). Environmental Science & Technology, 44, 1247-1253.
[17] Jenkins, B. (1993) Properties of Biomass, Appendix to Biomass Energy Fundamentals, EPRI Report TR-102017, January, 1993.

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