Energy efficiency and environmental performance of bioethanol production from sweet sorghum stem based on life cycle analysis

2014 ◽  
Vol 163 ◽  
pp. 74-81 ◽  
Author(s):  
Mingxin Wang ◽  
Yahui Chen ◽  
Xunfeng Xia ◽  
Jun Li ◽  
Jianguo Liu
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Environmental Performance ◽  
Sweet Sorghum ◽  
Life Cycle Analysis ◽  
Bioethanol Production

Life-cycle energy efficiency and environmental impacts of bioethanol production from sweet potato

2013 ◽  
Vol 133 ◽  
pp. 285-292 ◽  
Author(s):  
Mingxin Wang ◽  
Yu Shi ◽  
Xunfeng Xia ◽  
Dinglong Li ◽  
Qun Chen
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Sweet Potato ◽  
Bioethanol Production

scholarly journals A Life Cycle Analysis of Deploying Coking Technology to Utilize Low-Rank Coal in China

2020 ◽  
Vol 12 (12) ◽  
pp. 4884
Author(s):  
Yan Li ◽  
Guoshun Wang ◽  
Zhaohao Li ◽  
Jiahai Yuan ◽  
Dan Gao ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Life Cycle Analysis ◽  
Economic Benefits ◽  
Economic Feasibility ◽  
Environmental Benefits ◽  
Low Rank ◽  
Metallurgical Coke ◽  
Low Rank Coal ◽  
Coke Industry

At present, the excess capacity in China’s coke industry can be deployed to utilize some low-rank coal, replacing coking coal with potential economic gains, energy efficiency, and environmental benefits. This study presents a life cycle analysis to model these potential benefits by comparing a metallurgical coke technical pathway with technical pathways of gasification coke integrated with different chemical productions. The results show that producing gasification coke is a feasible technical pathway for the transformation and development of the coke industry. However, its economic feasibility depends on the price of cokes and coals. The gasification coke production has higher energy consumption and CO2 emissions because of its lower coke yield. Generally speaking, using gasification coke to produce F-T oils has higher economic benefits than producing methanol, but has lower energy efficiency and higher carbon emissions.

scholarly journals Life Cycle Analysis of a Geothermal Power Plant: Comparison of the Environmental Performance with Other Renewable Energy Systems

2020 ◽  
Vol 12 (7) ◽  
pp. 2786 ◽  
Author(s):  
Riccardo Basosi ◽  
Roberto Bonciani ◽  
Dario Frosali ◽  
Giampaolo Manfrida ◽  
Maria Laura Parisi ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Life Cycle ◽  
Power Plant ◽  
Environmental Performance ◽  
Life Cycle Analysis ◽  
Energy Systems ◽  
Renewable Energy Systems ◽  
Geothermal Power Plant ◽  
A Value ◽  
Geothermal Power

A life cycle analysis was performed for the assessment of the environmental performances of three existing Italian power plants of comparable nominal power operating with different sources of renewable energy: Geothermal, solar, and wind. Primary data were used for building the life cycle inventories. The results are characterized by employing a wide portfolio of environmental indicators employing the ReCiPe 2016 and the ILCD 2011 Midpoint+ methods; normalization and weighting are also applied using the ReCiPe 2016 method at the endpoint level. The midpoint results demonstrate a good eco-profile of the geothermal power plant compared to other renewable energy systems and a definite step forward over the performance of the national energy mix. The Eco-Point single score calculation showed that wind energy is the best technology with a value of 0.0012 Eco-points/kWh, a result in line with previously documented life cycle analysis studies. Nevertheless, the geothermal power plant achieved a value of 0.0177 Eco-points/kWh which is close to that calculated for the photovoltaic plant (0.0087 Eco-points/kWh) and much lower than the national energy mix one (0.1240 Eco-points/kWh). Also, a scenario analysis allowed for a critical discussion about potential improvements to the environmental performance of the geothermal power plant.

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