| CHEMISTRY AND CHEMICAL ENGINEERING |
|
|
|
|
|
Energy and carbon balances in microalgae biodiesel |
| LUO Yiqing, WANG Xue, YUAN Xigang |
| School of Chemical Engineering and Technology, Tianjin University, Tianjin 300354, China |
|
|
|
|
Abstract Microalgae biodiesel is a complex industrial energy production method that is influenced by many factors including the complex composition. The energy consumption and generation ability and the amount of greenhouse gas emissions (net carbon emissions) are important criteria for assessing the system sustainability. A life cycle analysis of the energy and carbon balance of microalgae biodiesel were used to calculated the net energy surplus and net carbon emissions of biodiesel biofuel and the key factors influencing the energy production and carbon emissions. The results show that the energy output of the whole system is larger than the energy consumption during the production and processing of the microalgae biodiesel and that more CO2 is fixed than released over the life time. Thus, microalgae biodiesel is a new fuel that is sustainable and environmentally friendly.
|
| Keywords
microalgae biodiesel
life cycle assessment
energy balance
carbon balance
|
|
|
|
Issue Date: 15 March 2018
|
|
|
[1] ZAMALLOA C, VULSTEKE E, ALBRECHT J, et al. The techno-economic potential of renewable energy through the anaerobic digestion of microalgae[J]. Bioresource Technology, 2011, 102(2):1149-115.
[2] CHISTI Y. Biodiesel from microalgae[J]. Biotechnology Advances, 2007, 25(3):294-306.
[3] LARDON L, HELIAS A, SIALVE B, et al. Life-cycle assessment of biodiesel production from microalgae, environ[J]. Science Technology, 2009, 43(17):6475-6481.
[4] 张庭婷. 中国微藻生物柴油全生命周期"2E&W"分析[D]. 上海:上海交通大学, 2014. ZHANG T T. Analysis of "2E & W" of biofuel life cycle in China[D]. Shanghai:Shanghai Jiaotong University, 2014. (in Chinese)
[5] LUNDQUIST T J, WOERTZ I C, QUINN N W T, et al. A realistic technology and engineering assessment of algae biofuel production[R]. San Luis Obispo:Energy Biosciences Institute, 2010.
[6] STEPHENSON A L, KAZAMIA E, DENNIS J S, et al. Life-cycle assessment of potential algal biodiesel production in the United Kingdom:A comparison of raceways and air-lift tubular bioreactors[J]. Energy & Fuels, 2010, 24:4062-4077.
[7] LEE A K, LEWIS D M, ASHMAN P J. Microbial flocculation, a potentially low-cost harvestingtechnique for marine microalgae for the production of biodiesel[J]. Journal of Applied Phycology, 2009, 21(5):559-567.
[8] LIAO Y F, HUANG Z H, MA X Q. Energy analysis and environmental impacts of microalgal biodiesel in China[J]. Energy Policy, 2012, 45(11):142-151.
[9] 张庭婷, 谢晓敏, 黄震. 微藻生物柴油全生命周期分析[J]. 上海交通大学学报, 2014, 48(6):750-755.ZHANG T T, XIE X M, HUANG Z. Filter life cycle analysis of microalgae biodiesel[J]. Journal of Shanghai Jiaotong University, 2014, 48(6):750-755. (in Chinese)
[10] HALIM R, DANQUAH M K, WEBLEY P A. Extraction of oil from microalgae for biodiesel production:A review[J]. Biotechnology Advances, 2012, 30:709-732.
[11] CAMPBELL P K, BEER T, BATTEN D. Greenhouse gas sequestration by algae-energy and greenhouse gas life cycle studies[C]//Proceedings of the 6th Australian Conference on Life Cycle Assessment. Melbourne, CSIRO, Australia:Energy Transformed Flagship, 2009.
[12] 张治山. 玉米燃料乙醇生命周期系统的热力学分析[D]. 天津:天津大学, 2005.ZHANG Z S. Thermodynamic analysis of maize fuel ethanol life cycle system[D]. Tianjin:Tianjin University, 2005. (in Chinese) |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
2018,
Vol. 58
