Life cycle assessment of pyrolysis process of Desmodesmus sp.

Li Gang, Ji Fang, Zhou Yuguang, Dong Renjie

Abstract


This paper described a comprehensive assessment of the pyrolysis process of 1 kg Desmodesmus sp. cultivated in BG11 medium at the optimum temperature by using life cycle assessment method. This assessment took 1 kg of Desmodesmus sp. as a functional unit, and chose energy efficiency analysis and potential environmental impact as assessment indices. The results showed that the energy conversion efficiency index of the pyrolysis process was above 1, which meant the pyrolysis process was beneficial. The primary impact of the pyrolysis process on the environment was eutrophication; which followed by photochemical ozone synthesis and acidification; and global warming impact was the last. The overall environmental impact during the whole life cycle was 1 347.63 mPET2000.
Keywords: life cycle assessment (LCA), microalgae, pyrolysis, energy conversion efficiency, environmental impact
DOI: 10.3965/j.ijabe.20150805.2069

Citation: Li G, Ji F, Zhou Y G, Dong R J. Life cycle assessment of pyrolysis process of Desmodesmus sp. Int J Agric & Biol Eng, 2015; 8(5): 105－112.

Keywords


life cycle assessment (LCA), microalgae, pyrolysis, energy conversion efficiency, environmental impact

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References


Brennan L, Owende P. Biofuels from microalgae−a review of technologies for production, processing, and extractions of biofuels and co-products. Renew. Sustain. Energy Rev., 2010; 14 (2): 557−577.

Hu B, Min M, Zhou W, Mohr M, Chen P, Zhu J, et al. Enhanced mixotrophic growth of microalgae Chlorella sp. on pretreated swine manure for simultaneous biofuel feedstock production and nutrient removal. Bioresour. Technol., 2012; 126: 71−79.

Maddi B, Viamajala S, Varanasi S. Comparative study of pyrolysis of algal biomass from natural lake blooms with lignocellulosic biomass. Bioresour. Technol., 2011; 102(23): 11018−11026.

Rebitzer G, Ekvall T, Frischknecht R, Hunkeler D, Norris G, Rydberg T, et al. Life cycle assessment part 1: framework, goal and scope definition, inventory analysis, and applications. Environ. Int., 2004; 30: 701−720.

Vigon B. Guidelines for life cycle assessment: a code of practice. Society of Environmental Toxicology and Chemistry (SETAC), Pensacola, Florida, USA, 1993.

Liu Y X, Langer V, Hogh-Jensen H, Egelyng H. Life cycle assessment of fossil energy use and greenhouse gas emissions in Chinese pear production. J. Clean. Prod., 2010; 18(14): 1423−1430.

Lee K, Inaba A. Life cycle assessment Best Practices of ISO 14040 Series. Center for Ecodesign and LCA (CEL), AjouUniversity, 2004.

ISO14043: Environmental Management-Life Cycle Assessment-life Cycle Interpretation, 2000(E).

Marsmann M. The ISO 14040 family. Int. J. Life Cycle Assess, 2000; 5(6): 317−318.

Mahinpey N, Murugan P, Mani T, Raina R. Analysis of bio-oil, biogas, and biochar from pressurized pyrolysis of wheat straw using a tubular reactor. Energy Fuels, 2009; 23(5): 2736−2742.

Friedl A, Padouvas E, Rotter H, Varmuza K. Prediction of heating values of biomass fuel from elemental composition. Analytica. Chimica. Acta. 2005; 544(1): 191−198.

Liu J, Ma X Q. The analysis on energy and environmental impacts of microalgae-based fuel methanol in China. J. Energ. Policy., 2009; 37(4): 1479−1488.

Guinee J B, Gorree M, Heijungs R, Huppes G, Kleijn R, de Koning A, et al. Life cycle assessment: an operational guide to the ISO standards. CML, Leiden University, 2000.

Houghton J T. (Ed.). Climate change 1995: The science of climate change: contributing of working group 1 to the second assessment report of the intergovernmental panel on climate change. Cambridge University Press, 1996.

Brentrup F, Küsters J, Kuhlmann H, Lammel J. Environmental impact assessment of agricultural production systems using the life cycle assessment methodology: I.Theoretical concept of a LCA method tailored to crop production. Eur. J. Agron., 2004; 20(3): 247−264.

Sleeswijk A W, van Oers L F C M, Guinée J B, Struijs J Huijbregts M A J. Normalisation in product life cycle assessment: an LCA of the global and European economic systems in the year 2000. Sci. Total Environ., 2008; 390(1): 227−240.

Wang M X, Bao Y H, Wu W L, Liu W N. Life cycle environmental impact assessment of winter in north China plain. J. Agro-Environ. Sci., 2006; 25(5): 1127−1132.

Huang C L. Life cycle assessment (LCA) for the product of synthesized polymer biomedical material.Master dissertation. Sichuan: Southwest Jiaotong University, 2004. (in Chinese)

Finnveden G, Hauschild M Z, Ekvall T, GuinéeJ, Heijungs R, Hellweg S, et al. Recent developments in life cycle assessment. J. Environ. Manage., 2009; 91(1): 1−21.

Hou J, Zhang P D, Yuan X Z, Zheng Y. Life cycle environmental impact assessment of biodiesel from microalgae in open ponds. Transactions of the CSAE, 2011; 27(7): 251−257. (in Chinese with English abstract)




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