Advances in Microbial Technology for Upscaling Sustainable Biofuel Production

Shah, Shachi; Venkatramanan, V.

doi:10.1016/b978-0-444-63504-4.00005-0

Cited by 22 publications

(11 citation statements)

References 31 publications

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“…Growing concerns for climate change and increasing energy demand requires the adoption of bioenergy, particularly biofuels. Sustainable alternative energy sources, such as biofuels, limit greenhouse gas emissions and enable a carbon-neutral economy [ 50 ]. Nevertheless, the production and utilization of biofuels are influenced by socio-economic environmental and political factors.…”

Section: Approaches To Accelerate Biodiesel Productionmentioning

confidence: 99%

“…Metabolic engineering aims to “design native or entirely new metabolic pathways in a cell” [ 54 ]. Metabolic engineering improves cellular activities by manipulating the metabolic, transport system and regulatory functions of the cells [ 50 ]. Recently, metabolic engineering has been employed to augment biofuel production.…”

Section: Approaches To Accelerate Biodiesel Productionmentioning

confidence: 99%

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Bioengineering to Accelerate Biodiesel Production for a Sustainable Biorefinery

et al. 2022

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Biodiesel is an alternative, carbon-neutral fuel compared to fossil-based diesel, which can reduce greenhouse gas (GHGs) emissions. Biodiesel is a product of microorganisms, crop plants, and animal-based oil and has the potential to prosper as a sustainable and renewable energy source and tackle growing energy problems. Biodiesel has a similar composition and combustion properties to fossil diesel and thus can be directly used in internal combustion engines as an energy source at the commercial level. Since biodiesel produced using edible/non-edible crops raises concerns about food vs. fuel, high production cost, monocropping crisis, and unintended environmental effects, such as land utilization patterns, it is essential to explore new approaches, feedstock and technologies to advance the production of biodiesel and maintain its sustainability. Adopting bioengineering methods to produce biodiesel from various sources such as crop plants, yeast, algae, and plant-based waste is one of the recent technologies, which could act as a promising alternative for creating genuinely sustainable, technically feasible, and cost-competitive biodiesel. Advancements in genetic engineering have enhanced lipid production in cellulosic crops and it can be used for biodiesel generation. Bioengineering intervention to produce lipids/fat/oil (TGA) and further their chemical or enzymatic transesterification to accelerate biodiesel production has a great future. Additionally, the valorization of waste and adoption of the biorefinery concept for biodiesel production would make it eco-friendly, cost-effective, energy positive, sustainable and fit for commercialization. A life cycle assessment will not only provide a better understanding of the various approaches for biodiesel production and waste valorization in the biorefinery model to identify the best technique for the production of sustainable biodiesel, but also show a path to draw a new policy for the adoption and commercialization of biodiesel.

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Section: Approaches To Accelerate Biodiesel Productionmentioning

confidence: 99%

Section: Approaches To Accelerate Biodiesel Productionmentioning

confidence: 99%

Bioengineering to Accelerate Biodiesel Production for a Sustainable Biorefinery

et al. 2022

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“…The microorganisms involved in the fermentation of lignocellulosic hydrolysate are Saccharomyces cerevisiae, Escherichia coli, Clostridium butilicum, Zymomonas mobilis, etc. The performance of microorganisms involved in the biofuel production from crop residues can be augmented by adopting metabolic engineering and synthetic biology approaches [33]. Biofuels generated from crop residues include bioethanol, biomethane and biohydrogen [1].…”

Section: Fig 5 Spatial Distribution Of Bioenergy Potential In Indiamentioning

confidence: 99%

Assessment of Bioenergy Generation Potential of Agricultural Crop Residues in India

et al. 2021

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Crop residues are sustainable feedstock for bioenergy production. The gross crop residue potential generated in India is 696.38 million tonnes/year. Cereal crops generate about 364.27 million tonnes/year of crop residues. Cereal crops (rice, wheat, sorghum, pearl millet, maize), sugarcane and horticultural crops (coconut, areca nut, banana) are found to have immense crop residue generation potential. Crop residues of 209.69 million tonnes/ year are available as surplus and can be explored for bioenergy generation. Cereals and sugarcane account for 75% of surplus crop residues. Spatial variations existing between states in terms of surplus crop residue generation are due to crop acreage and crop productivity. Uttar Pradesh generates 116.69 million tonnes/year of gross crop residues and 41.76 million tonnes/year of surplus crop residues. States like Punjab,

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“…As the fourth-largest source of energy after coal, petroleum, and natural gas, biomass contributes a significant percentage of global primary energy consumption (Shah and Venkatramanan, 2019). Biomass now accounts for around 15% of total global energy use in all forms (Ankolekar and Kulkarni, 2018).…”

Section: Introductionmentioning

confidence: 99%

Mesh Sensitivity Analysis of an Entrained Flow Biomass Gasifier: A CPFD Study

Timsina¹,

Barahmand²

2022

Linköping Electronic Conference Proceedings

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Biomass such as agricultural waste, forestry waste, municipal solid waste, and industrial waste, are renewable energy sources that may be used to produce biofuels. Biomass gasification is an effective and promising technology for converting any biomass into valuable products that can contribute considerably to renewable energy generation. In the manufacturing industry, computer-based simulations, improving production processes while incorporating sustainable industrial strategies, are rising. In the Computational Fluid Dynamics (CFD) scientific community, the reliability of computational prediction of findings is a rising problem. Mesh independence is crucial since it may determine if the solution obtained is independent of the mesh resolution. In CFD models, there are a variety of strategies for discovering a mesh independence test such as the grid resolution, general Richardson extrapolation, and Grid Convergence Index (GCI). In the grid resolution technique, the mesh size gradually increases until no meaningful performance improvement can be seen due to the larger mesh size. The present study aims to analyze the mesh independence test using the grid resolution method on an entrained flow biomass gasifier and investigate the model's sensitivity to parameters such as reactants’ inlet temperature, product gas compositions and flow rate. To achieve this goal, four different scenarios were defined employing a series of Computational Particle Fluid Dynamics (CPFD) simulations using Barracuda® v21.0.1. The results confirmed that within the range of 25000 and 200000 cells, synthesis gas production decreased by almost 2 percent, which is not significant.

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Advances in Microbial Technology for Upscaling Sustainable Biofuel Production

Cited by 22 publications

References 31 publications

Bioengineering to Accelerate Biodiesel Production for a Sustainable Biorefinery

Bioengineering to Accelerate Biodiesel Production for a Sustainable Biorefinery

Assessment of Bioenergy Generation Potential of Agricultural Crop Residues in India

Mesh Sensitivity Analysis of an Entrained Flow Biomass Gasifier: A CPFD Study

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