Process simulation and life cycle analysis of biodiesel production

Sajid, Zaman; Khan, Faisal; Zhang, Yan

doi:10.1016/j.renene.2015.07.046

Cited by 131 publications

(60 citation statements)

References 41 publications

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“…The LCA has been widely used in the evaluation of the impacts caused in the construction industry [22,23]; in the production of biofuels [24]; in the generation of energy [25] from different biomasses; in teaching and research [26]; and in food systems [27], among many applications. Studies demonstrate the joint use of LCA with other methodologies.…”

Section: Charcoal Production Lcamentioning

confidence: 99%

Life Cycle Analysis of Charcoal Production in Masonry Kilns with and without Carbonization Process Generated Gas Combustion

et al. 2017

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New technologies and emissions controls have been developed for the production of charcoal, but are not widely used in the industry. The present study seeks to evaluate the potential environmental impact of these new technologies as compared to traditional ones. A Life Cycle Assessment (LCA) of Brazilian charcoal produced with different technologies without and with the combustion of the gases in burners or furnaces was carried out. The inclusion of furnaces for the combustion of gases reduces all categories of potential environmental impacts by approximately 90% in both a circular masonry kiln and a rectangular masonry kiln with gas combustion. In the process of producing charcoal (gate-to-gate system boundary), in terms of climate change, the rectangular masonry kiln with gas combustion was approximately 63% less impactful than the circular masonry kiln with gas combustion. In the gate-to-gate analysis, the rectangular masonry kiln with gas combustion presented the best performance when not considering NO 2 and SO 2 . Considering these emissions, there were changes in the impact categories of particulate matter emission and terrestrial acidification, and the circular masonry kiln with gas combustion presented better performance (for cradle-to-gate system boundary). The process in a rectangular masonry kiln without gas combustion presented a greater contribution to the categories of terrestrial impact ecotoxicity (98%), due to the emission of acetic acid especially.

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Section: Charcoal Production Lcamentioning

confidence: 99%

Life Cycle Analysis of Charcoal Production in Masonry Kilns with and without Carbonization Process Generated Gas Combustion

et al. 2017

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“…Taking advantage of renewable resources for energy production has become a hot topic worldwide given the decreasing fossil fuel supply and growing environmental problems [1,2]. Biodiesel fuel as one of the most important renewable and clean energy alternatives to fossil fuels, has received wide attention [3]. The first generation biodiesel fuel mainly produced from plant oils (e.g., rapeseed, sunflower, soybean, coconut, peanut, jatropha sp., and jojoba oil) [4,5].…”

Section: Introductionmentioning

confidence: 99%

Improvement of lipid production in oleaginous yeast Rhodosporidium toruloides by ultraviolet mutagenesis

Guo

Cheng

Chen

et al. 2019

Engineering in Life Sciences

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The oleaginous yeast Rhodosporidium toruloides AS 2.1389 is viewed as desirable industrial microorganisms that can accumulate a high content of lipids for biodiesel production. In this study, we attempted to improve lipid accumulation in the yeast Rhodosporidium toruloides by UV irradiation mutagenesis and selection based on lithium chloride tolerance or ethanol–H2O2 tolerance. The biomass concentration, lipid yield and glucose consumption of mutant R. toruloides were determined. The transcription levels of lipid accumulation‐related genes in the wild‐type and mutant strains were also determined. The lithium chloride‐tolerant strain R‐ZL2 and the ethanol–H2O2‐resistant strain R‐ZY13 were generated by UV mutagenesis. The two mutant strains showed greater lipid productivity and lipid yield compared to the wild type. Transcriptional analysis revealed that IDP1, GPD1 and GND were expressed at significantly higher levels in the two high‐lipid‐producing mutants. In conclusion, lipid productivity and lipid yield in R. toruloides were successfully improved via UV mutagenesis and selection. We also identified some lipid accumulation‐related genes for improving lipid productivity through genetic engineering.

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“…It is crucial to maintain sustainable and economical growth with the utilization of domestic and renewable sources of energy as to check the import of oils [1]. Among biomass-based biofuels, biodiesel is the most sustainable and renewable alternative to the fossil diesel fuel, well-defined as a blend of fatty acid alkyl esters [2][3][4][5][6]. It is chemically produced by transesterification reaction, in which triacylglycerides irrespective of its origin react with short chain alcohols (usually methanol/ethanol) to form alkyl esters [7,8].…”

Section: Introductionmentioning

confidence: 99%

Assessment of fuel properties on the basis of fatty acid profiles of oleaginous yeast for potential biodiesel production

Patel

Arora

Mehtani

et al. 2017

Renewable and Sustainable Energy Reviews

188

100

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A B S T R A C TOver the last decade, there has been a huge upsurge of interest in sustainable production of biomass-based biofuels to fulfill the existing energy demand and simultaneously reducing the environmental deterioration. Earlier, vegetable oils and animal fats were utilized for biodiesel production, but due to food crisis and environmental sustainability, renewable sources such as neutral lipid derived from microbes are gaining much attention for budding biodiesel industries. Among various types of microorganisms, oleaginous yeasts are more promising feedstock to accomplish the current demand of biodiesel production and utilize a large number of cost-effective renewable substrates for their growth and lipid accumulation. However, biodiesel obtained from oleaginous yeasts have certain restrictions regarding their commercial utilization due to their unstable fuel properties such as oxidative stability, cetane number, viscosity and low-temperature performance etc. Numerous articles have been published in the public domain describing the fatty acid profiles of oleaginous yeast as feedstock for biodiesel production. However, the evaluation of quality parameters of biodiesel obtained from oleaginous yeasts is still in infancy. Although there is a huge disparity in a number of papers published for biodiesel production yet the reporting performance on diesel engines need to be verified in details. In this review article, attempt has been made to assess the important biofuel properties on the basis of the fatty acid profile of oleaginous yeast. Thus this evaluation would provide a guideline to the biodiesel producer to improve the production plans related to feedstocks for oleaginous yeast, culture conditions and biodiesel blending.

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Process simulation and life cycle analysis of biodiesel production

Cited by 131 publications

References 41 publications

Life Cycle Analysis of Charcoal Production in Masonry Kilns with and without Carbonization Process Generated Gas Combustion

Life Cycle Analysis of Charcoal Production in Masonry Kilns with and without Carbonization Process Generated Gas Combustion

Improvement of lipid production in oleaginous yeast Rhodosporidium toruloides by ultraviolet mutagenesis

Assessment of fuel properties on the basis of fatty acid profiles of oleaginous yeast for potential biodiesel production

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