Plants and algae species: Promising renewable energy production source

Kumar, VSiva; Jain, Sanjay

doi:10.9755/ejfa.v26i8.18364

Cited by 10 publications

(10 citation statements)

References 47 publications

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“…Table 2.10 outlines and compares the most critical system aspects of open raceway ponds and PBR microalgal growth system. (Brennan & Owende, 2010;Kumar & Jain, 2014;Rosello Sastre et al, 2007;Travieso et al, 2001;Vonshak & Richmond, 1988) Several studies concerning microalgal growth for biofuel production have found cultivation of microalgae in open raceway ponds (ORP) as the most cost effective method of producing microalgal biofuel (Amanor-Boadu et Colosi, 2012;Nanaki & Koroneos, 2012;Ogden, 2014;Pfromm et al, 2011;Sander & Murthy, 2010 (Quinn & Davis, 2015;Chisti, 2007).…”

Section: Pond Vs Pbrmentioning

confidence: 99%

“…Either an acid or base catalyst is typically used to facilitate the transesterification process (Ahmad et al 2013;Kumar and Jain 2014;Xu et al 2006). Types of catalysis include sulfuric acid, hydrogen chloride and sodium hydroxide (Kumar & Jain, 2014). Table 1 in Liu et al…”

Section: )mentioning

confidence: 99%

“…The water concentration of the microalgal lipid solution should be limited to less than 0.1% water as water too leads to soap formation when using an alkaline catalyst (Guan et al, 2009). Using an acid catalyst, such as hydrosulfuric acid, requires long transesterification reaction times (i.e., more than 1 day) therefore, heat and high concentrations of methanol are used to speed up the process (Guan et al, 2009;Kumar & Jain, 2014). It is these difficulties and drawbacks that are the main impediments of producing renewable fuel from microalgal oils (Kumar & Jain, 2014).…”

Section: )mentioning

confidence: 99%

“…Conversion of oil to FAME is rapid (i.e., less than 3 minutes) with a 98% conversion at 10-20 MPa, between 375 and 400ºC with a methanol:oil ratio of 3:1 to 6:1 (Bernal et al 2012;Marulanda et al 2010;Pinnarat and Savage 2008). Drawbacks of this process are high operational energy consumption, high equipment cost and safety concerns associated with operations at supercritical conditions (Bernal et al, 2012) Ultrasonic and hydrodynamic cavitation can also facilitate the transesterification process (Kumar & Jain, 2014). Ultrasonic power used for enhancing transesterification has low maintenance costs, reduces process time and is functionally an environmentally friendly technology (Mason & Lorimer, 2002;Suslick, 1989).…”

Section: )mentioning

confidence: 99%

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An Assessment Of Microalgal Biodiesel With Acetone, Butanol and Ethanol Using LIfe Cycle Assessment (LCA) Methodology

Dignan¹

2021

Preprint

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Canada, as one of the largest producers and consumers of fossil fuels per capita on the planet, is attempting to reduce greenhouse gas (GHG) emissions. In order to accomplish this, fuel alternatives, such as biofuel, are required. Accordingly, this study uses LCA methodology to quantify the GHG impact of a unique biofuel production model. This unique model produces biodiesel (BD), acetone, butanol and ethanol (ABE) from microalgae and assesses the process GHG impact against other microalgal BD production processes. This study’s microalgal BD and ABE production process produces 76 kgCO2e per functional unit, whereas other comparable microalgal BD production processes produce between 3.7 and 85 kgCO2e. Overall, this study clarifies that without the development of versatile infrastructure to accommodate biofuel production, LCA studies will continue to find renewable fuel production processes net GHG positive for the simple reason that fossil resources are still the primary energy source.

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Section: Pond Vs Pbrmentioning

confidence: 99%

Section: )mentioning

confidence: 99%

Section: )mentioning

confidence: 99%

Section: )mentioning

confidence: 99%

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An Assessment Of Microalgal Biodiesel With Acetone, Butanol and Ethanol Using LIfe Cycle Assessment (LCA) Methodology

Dignan¹

2021

Preprint

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“…They are also able to utilize various types of nitrogen compounds and absorb heavy metals. As a consequent, many studies have been done to seek possibilities of microalgae as a source of foods [1], energy production [2], medicines [3], and other valuable products.…”

Section: Introductionmentioning

confidence: 99%

Development and Validation of a Modified Contois Kinetics Model for Microalgae Chlorella Kessleri

Yunardi¹,

Hisbullah²,

Rinaldi³

et al. 2019

Proceedings of the Proceeding of the First International Graduate Conference (IGC) on Innovation, Creativity, Digital, &Amp; Te

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Microalgae is a promising source for renewable biofuels, medicines, healthy foods, animal feeds and many more. Microalgae have to be produced on a large scale in order to give a significant impact for the benefit of the society. Consequently, an understanding of the kinetic growth model of particular microalgae becomes necessary for the purpose of scaling up the production system. This study explores the development of an algae growth model for the Chlorella kessleri culture. The proposed growth model for Chlorella kessleri was developed from the original Contois growth model, which later modified to include the second substrate as the influencing factor for the growth of cell biomass. Differential equations resulted from mathematical development and modification of Contois model were numerically solved using the Runge-Kutta method. Values of model parameters are optimized using the Levenberg-Marquardt algorithm method. All computation for the above modeling purpose was done with the aid Matlab 7.1 software. The results of the study show that validation of the original Contois model produced predictions of cell and substrate concentrations which deviate from experimental data. When the Contois model was modified to include the effect of the second substrate for the Chlorella kessleri cell growth, in addition to N-NO3 as the first substrate, predictions produced an excellent agreement with the experimental data. Further validation against other experimental data of Chlorella kessleri culture is required to allow the generality of the proposed modified Contois model.

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Applications of microalgal and cyanobacterial biomass on a way to safe, cleaner and a sustainable environment

Garlapati

Mathimani

Anto

et al. 2020

Journal of Cleaner Production

129

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Plants and algae species: Promising renewable energy production source

Abstract: Rapid increase in fossil energy consumption has raised

Cited by 10 publications

References 47 publications

An Assessment Of Microalgal Biodiesel With Acetone, Butanol and Ethanol Using LIfe Cycle Assessment (LCA) Methodology

An Assessment Of Microalgal Biodiesel With Acetone, Butanol and Ethanol Using LIfe Cycle Assessment (LCA) Methodology

Development and Validation of a Modified Contois Kinetics Model for Microalgae Chlorella Kessleri

Applications of microalgal and cyanobacterial biomass on a way to safe, cleaner and a sustainable environment

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