scholarly journals Life Cycle Assessment of Green Diesel Production by Hydrodeoxygenation of Palm Oil

2021 ◽  
Vol 9 ◽  
Author(s):  
Antonio Arguelles-Arguelles ◽  
Myriam Adela Amezcua-Allieri ◽  
Luis Felipe Ramírez-Verduzco

Transition to a new energy low carbon pool requires the gradual replacing of fossil fuels with other cleaner energies and biofuels. In this work, the environmental impact of renewable diesel production using an attributional life cycle assessment was evaluated by considering five stages: palm plantation-culture-harvest, palm oil extraction, palm oil refining, green (renewable) diesel production, and biofuel use. The functional unit was established as 1.6 × 10−2 m3 (13.13 kg) of renewable diesel. The results show that the production of renewable diesel by Hydro-processed Esters and Fatty Acids is more environmentally friendly than fossil diesel production. In particular, the analysis showed that the CO2 emission decreases around 110% (i.e. mitigation occurred) compared with conventional diesel production. However, renewable diesel production has a relevant environmental impact in the human toxicity category due to the high consumption of agrochemicals during palm culture.

2021 ◽  
Author(s):  
Lihui Sun ◽  
Yuying Wang ◽  
Yuqing Gong

Abstract Environmental problems caused by the food processing industry have always been one of the concerns for the public. Herein, for the first time, a gate-to-gate life cycle assessment (LCA) was employed to evaluate the environmental impact of rice bran oil production. Four subsystems namely transportation of the raw rice bran to oil factory, crude oil extraction, oil refining as well as oil storage were established. The product sustainability software GaBi and the method CML 2001-Jan. 2016 were used to calculate and analyze the environmental burdens at each stage of the rice bran oil production chain. The results show the oil refining stage had the greatest environmental impact, followed by the oil extraction stage. High demands for coal and electricity, make a critical difference in generating vast majority of environmental impacts. Modifying the electricity source and replacing traditional fuels with cleaner ones will do bring benefits to the sustainable development of the industry.


2016 ◽  
pp. 15-26 ◽  
Author(s):  
Rutjaya P. Na Talang ◽  
Sanya Sirivithayapakorn

In many Asian countries, fired bricksare producedby burning raw bricks in a rudimen-tary clamp kiln without pollution control mechanisms, a practice which contributes to several kinds of environmental impact. This research investigated the inputs and outputs associated with production of fired bricks using the rice husk-fuelled clamp kiln. Data collected includedraw material use, energy, products, emissions and kiln temperatures. To quantify environmental impacts, the consequential-focused life cycle assessment (LCA) approach was adopted. The impactswere assessed in terms of fuel substitution as the acquisition of another fuelwas re-quired to substitute for electricity. The findings indicated that the clamp kiln technology pro-duced lowCO2emissions per unit of production and per unit of energy input, despite poor specific energy consumption. The LCA analysis indicated that the use of rice husk was the major contributor to environmental impact, and that abiotic depletion of fossil fuels repre-sented the environmental hotspot. To improve combustion efficiency, the clamp kilns should beeither insulated or replaced with more efficient kiln technology, in conjunction with the use ofrice husk.


Energies ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2916
Author(s):  
Jérôme Payet ◽  
Titouan Greffe

Worldwide electricity consumption increases by 2.6% each year. Greenhouse gas emissions due to electricity production raise by 2.1% per year on average. The development of efficient low-carbon-footprint renewable energy systems is urgently needed. CPVMatch investigates the feasibility of mirror or lens-based High Concentration Photovoltaic (HCPV) systems. Thanks to innovative four junction solar cells, new glass coatings, Position Sensitive Detectors (PSD), and DC/DC converters, it is possible to reach concentration levels higher than 800× and a module efficiency between 36.7% and 41.6%. From a circular economy’s standpoint, the use of concentration technologies lowers the need in active material, increases recyclability, and reduces the risk of material contamination. By using the Life Cycle Assessment method, it is demonstrated that HCPV presents a carbon footprint ranking between 16.4 and 18.4 g CO2-eq/kWh. A comparison with other energy means for 16 impact categories including primary energy demand and particle emissions points out that the environmental footprint of HCPV is typically 50 to 100 times lower than fossil fuels footprint. HCPV’s footprint is also three times lower than that of crystalline photovoltaic solutions and is close to the environmental performance of wind power and hydropower.


2016 ◽  
Vol 86 ◽  
pp. 623-632 ◽  
Author(s):  
Namita Pragya ◽  
Krishan K. Pandey

2021 ◽  
Vol 13 (12) ◽  
pp. 6657
Author(s):  
Brett Fulford ◽  
Karen Mezzi ◽  
Andy Whiting ◽  
Simon Aumônier

The Breezhaler® dry powder inhaler (DPI) has a low carbon footprint compared with other inhalation therapies, consistent with the literature on other DPIs. This life-cycle assessment was conducted in France, Germany, the UK, and Japan using a “cradle-to-grave” technique to evaluate six environmental impact categories (global warming potential; acidification; ozone depletion; use of resource, minerals, and metals; eco-toxicity; and freshwater use) associated with the use of the Breezhaler®. Three variants of the Breezhaler® (30-day packs with and without the digital companion and a 90-day pack without the digital companion) were evaluated to identify major hotspots in the device life-cycle and to provide realistic solutions to reduce the environmental impact. Although no single life-cycle stage dominated the climate change impact of the 30-day device with the digital companion, the inhaler’s raw materials and packaging contributed to 96% of the resource depletion impact for the 30-day device without the digital companion. For the 90-day device without the digital companion, packaging contributed 42–62% of the impact across all categories. Overall, the Breezhaler® inhaler with the 90-day pack had the lowest environmental impact. The environmental impact of the device did not vary significantly among the considered markets. Further studies are needed to assess the impact of active pharmaceutical ingredients and improvement in clinical outcomes on the environment.


2017 ◽  
Vol 142 ◽  
pp. 1210-1221 ◽  
Author(s):  
Bulin Boonrod ◽  
Chaiwat Prapainainar ◽  
Phavanee Narataruksa ◽  
Angsana Kantama ◽  
Worayut Saibautrong ◽  
...  

2021 ◽  
Vol 896 (1) ◽  
pp. 012046
Author(s):  
A Yerdianti ◽  
R Aziz

Abstract PT FRP produces crumb rubber SIR 20 with a total annual production of 42.000 tons. This study aims to analyze the environmental impact of 1-ton crumb rubber production using the Life Cycle Assessment (LCA) method to be further explored for recommendations for ecological improvement. LCA was carried by a gate-to-gate scope using SimaPro software with the eco-indicator 99 method. The steps for completing this research refer to ISO 14040:2016. Characterization step results from the category of fossil fuels impact have the highest value (931 MJ surplus). The total value of the single score generated is 369 Pt, with the highest impact value is respiratory inorganics. The dryer drying process, the usage of electricity, and the generator and boiler are four production processes that significantly impact the environment. Improvement recommendations given to reduce the effects of the four processes are using an economizer in the boiler, the combination of fuel used by the boiler, and substitution of diesel fuel with Pertamina Dex as generator’s fuel.


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