Life cycle assessment of electricity generation using fast pyrolysis bio-oil

2011 ◽  
Vol 36 (2) ◽  
pp. 632-641 ◽  
Author(s):  
Jiqing Fan ◽  
Tom N. Kalnes ◽  
Matthew Alward ◽  
Jordan Klinger ◽  
Adam Sadehvandi ◽  
...  
2022 ◽  
pp. 130373
Author(s):  
A. Alcazar-Ruiz ◽  
M.L. Ortiz ◽  
F. Dorado ◽  
L. Sanchez-Silva

2021 ◽  
pp. 0734242X2110450
Author(s):  
Xiang Zheng ◽  
Zhaoping Zhong ◽  
Bo Zhang ◽  
Haoran Du ◽  
Wei Wang ◽  
...  

This study aimed to evaluate the environmental impact of 1000 kg h−1 wheat straw to produce biofuel via fast pyrolysis with three different hydrogen production processes by the life cycle assessment (LCA) based on Chinese Life Cycle Database (CLCD). The primary energy depletion (PED), global warming potential (GWP), abiotic depletion potential (ADP) and respiratory inorganics (RI) impact categories of 1 MJ biofuel produced were employed for comparison. In case 1, the hydrogen was derived from natural gas steam reforming, and all the bio-oil was hydrotreated to produce the biofuel. In case 2, a part of the aqueous phase was reformed to produce hydrogen, whereas the remaining bio-oil was hydrotreated to produce biofuel. In case 3, all the aqueous phase of bio-oil was reformed to produce hydrogen, a part of hydrogen generated by reforming was used to oil phase hydrotreated and the excess hydrogen was considered as a co-product. Our results show that the PED, GWP, ADP and RI of case 3 are 0.1355 MJ, −17.96 g CO2eq., 0.0338 g antimonyeq and 0.0461 g PM2.5eq.. Compared with conventional diesel, the PED, GWP, ADP and RI of case 3 were reduced by 89.81, 117.44, 1.74 and 85.03%, respectively. The results of sub-process contribution analysis and sensitivity analysis suggested that the electricity consumption for the bio-oil production has the maximal effect on the total PED, GWP and RI of case 3, whereas the amount of fertilizers in the biomass production sub-process has the maximal effect on the total ADP.


2020 ◽  
Vol 10 (5) ◽  
pp. 498-502
Author(s):  
S. M. Shafie ◽  
Z. Othman ◽  
N. Hami ◽  
S. Omar ◽  
A. H. Nu'man ◽  
...  

Author(s):  
José Guilherme de Paula do Rosário ◽  
Rodrigo Salvador ◽  
Murillo Vetroni Barros ◽  
Cassiano Moro Piekarski ◽  
Leila Mendes da Luz ◽  
...  

2018 ◽  
Vol 29 (5) ◽  
pp. 826-841 ◽  
Author(s):  
Binita Shah ◽  
Seema Unnikrishnan

Purpose India is a developing economy along with an increasing population estimated to be the largest populated country in about seven years. Simultaneously, its power consumption is projected to increase more than double by 2020. Currently, the dependence on coal is relatively high, making it the largest global greenhouse gas emitting sector which is a matter of great concern. The purpose of this paper is to evaluate the environmental impacts of the natural gas electricity generation in India and propose a model using a life cycle assessment (LCA) approach. Design/methodology/approach LCA is used as a tool to evaluate the environmental impact of the natural gas combined cycle (NGCC) power plant, as it adopts a holistic approach towards the whole process. The LCA methodology used in this study follows the ISO 14040 and 14044 standards (ISO 14040: 2009; ISO 14044: 2009). A questionnaire was designed for data collection and validated by expert review primary data for the annual environmental emission was collected by personally visiting the power plant. The study follows a cradle to gate assessment using the CML (2001) methodology. Findings The analysis reveals that the main impacts were during the process of combustion. The Global warming potential is approximately 0.50 kg CO2 equivalents per kWh of electricity generation from this gas-based power plant. These results can be used by stakeholders, experts and members who are authorised to probe positive initiative for the reduction of environmental impacts from the power generation sector. Practical implications Considering the pace of growth of economic development of India, it is the need of the hour to emphasise on the patterns of sustainable energy generation which is an important subject to be addressed considering India’s ratification to the Paris Climate Change Agreement. This paper analyzes the environmental impacts of gas-based electricity generation. Originality/value Presenting this case study is an opportunity to get a glimpse of the challenges associated with gas-based electricity generation in India. It gives a direction and helps us to better understand the right spot which require efforts for the improvement of sustainable energy generation processes, by taking appropriate measures for emission reduction. This paper also proposes a model for gas-based electricity generation in India. It has been developed following an LCA approach. As far as we aware, this is the first study which proposes an LCA model for gas-based electricity generation in India. The model is developed in line with the LCA methodology and focusses on the impact categories specific for gas-based electricity generation.


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