Gasification performance of Spirulina microalgae – A thermodynamic study with tar formation

Adnan, Muflih A.; Xiong, Qingang; Hidayat, Arif; Hossain, Mohammad M.

doi:10.1016/j.fuel.2018.12.061

Cited by 32 publications

(6 citation statements)

References 42 publications

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“…However, it has a low calorific value of 4-6 MJ/m 3 . There are two different routes for transporting fuels through syngas: (1) hydrogen production by water gas shift reaction; and (2) Fischer Tropsch conversion of hydrocarbons to produce liquid fuels/chemicals such as methanol [133,134].…”

Section: Gasificationmentioning

confidence: 99%

Microalgae-based biofuels, resource recovery and wastewater treatment: A pathway towards sustainable biorefinery

Javed

Aslam

Rashid

et al. 2019

Fuel

175

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Intense utilization of natural fuel resources is threatening the global environment and societal sustainability. It triggers up the need for finding environmental-friendly and sustainable sources of energy. In this perspective, microalgae have emerged as a potential alternative. Microalgae are featured with distinct ability to provide ecological services and respond to the sustainability challenges simultaneously. Microalgae can fix atmospheric CO2, valorize waste resources, and can produce a wide variety of bio-products. The promising features of microalgae pitch the idea of establishing a sustainable bio-refinery to draw multifaceted benefits and reinforce the objectives of resource efficient bio-economy. Unfortunately, in the last few years, preferential studies have been carried out to assess the potential of microalgae-based integrated bio-refinery. This review critically discussed the recent developments, opportunities, and barriers in the microalgae bioindustry and wastewater treatment. Particularly, microalgae potentials for biofuels and resources recovery are addressed towards sustainable biorefinery. Moreover, techno-economic and 2 commercial viability of microalgae-led bio-refinery is reviewed to drive this technology towards practicality.

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Section: Gasificationmentioning

confidence: 99%

Microalgae-based biofuels, resource recovery and wastewater treatment: A pathway towards sustainable biorefinery

Javed

Aslam

Rashid

et al. 2019

Fuel

175

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“…3 shows the sample weight loss and derivative mass loss with temperature by using air as a reacting medium. Blue curve indicated four degradation stages; drying, devolatilization, char combustion and ash formation [40]. Red line shows the DTG curve.…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

Assessment of biomass energy potential for SRC willow woodchips in a pilot scale bubbling fluidized bed gasifier

Hai

Sher

Yaqoob

et al. 2019

Fuel

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The current study investigates the short rotation coppice (SRC) gasification in a bubbling fluidized bed gasifier (BFBG) with air as gasifying medium. The thermochemical processes during combustion were studied to get better control over the air gasification and to improve its effectiveness. The combustion process of SRC was studied by different thermo-analytical techniques. The thermogravimetric analysis (TGA), derivative thermogravimetry (DTG), and differential scanning calorimetry (DSC) were performed to examine the thermal degradation and heat flow rates. The product gas composition (CO, CO2, CH4 and H2) produced during gasification was analyzed systematically by using an online gas analyzer and an offline GC analyzer. The influence of different equivalence ratios on product gas composition and temperature profile was investigated during SRC gasification. TG/DTG results showed degradation occur in four stages; drying, devolatilization, char combustion and ash formation. Maximum mass loss~70% was observed in devolatilization stage and two sharp peaks at 315-500°C in TG/DSC curves indicate the exothermic reactions. The temperature of gasifier was increased in the range of 650-850 o C along with the height of the reactor with increasing equivalent ratio (ER) from

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“…Computation of chemical reaction equilibria was also performed with GAMS® [88]. Finally, process simulators such as Aspen-Plus® [2,32,36,50], Aspen-Hysys® [6,14], and CHEMCAD [19] or combinations of two and three software [3,15,32,35] were considered. More specifically, the NS strategy was used by Fateen [37], who presented several illustrations of chemical equilibrium calculations using stochastic global optimizers to minimize the Gibbs energy.…”

Section: Introductionmentioning

confidence: 99%

Introduction to the modeling of complex chemical reaction equilibrium using gPROMS® and GAMS®

Garma,

Sioud,

Binous

et al. 2024

Comp Applic In Engineering

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In the present paper several aspects of the simulation of complex chemical equilibrium are discussed, using two research and educational software: gPROMS® and GAMS®. All computations are performed to boost the understanding of chemical engineering students, undergraduate, and graduate, of the complex concepts behind both thermo‐chemical processes and optimization techniques. Four case studies with varying levels of difficulty illustrate the proposed methodology and robustness of the modeling systems: Catalytic steam reforming of bio‐ethanol at high temperatures. Partial oxidation of naphthalene using either air or pure oxygen. Supercritical water gasification of Microalga Spirulina. Dry and mixed reforming of glucose.Our results indicate that the use of optimization tools offered bygPROMS® and GAMS®software are useful and efficient tools to calculate the chemical and phase equilibrium by minimizing the Gibbs energy, provided that adequate initial guesses are used. Furthermore, the computational time spent in the calculations was generally quite short. The obtained equilibrium compositions are benchmarked using the ubiquitous process simulators: ASPEN‐Plus® and/or ASPEN‐Hysys® as well as data available from the open literature. We obtained excellent agreement between our results and their counterpart obtained using ASPEN‐Plus®. In the last part of this manuscript, authors share their experience in supervising senior term projects on the subject. A questionnaire was used to collect qualitative and quantitative feedback from the nine students involved in the projects. Their responses to a questionnaire focused on the chemical engineering thermodynamics theory as well as software usage during their investigations. This questionnaire demonstrates that students can overcome mathematical complexity by either using mathematical software or equivalent modeling systems (e.g., Matlab®, Mathematica©, gPROMS®, and GAMS®).

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Gasification performance of Spirulina microalgae – A thermodynamic study with tar formation

Cited by 32 publications

References 42 publications

Microalgae-based biofuels, resource recovery and wastewater treatment: A pathway towards sustainable biorefinery

Microalgae-based biofuels, resource recovery and wastewater treatment: A pathway towards sustainable biorefinery

Assessment of biomass energy potential for SRC willow woodchips in a pilot scale bubbling fluidized bed gasifier

Introduction to the modeling of complex chemical reaction equilibrium using gPROMS® and GAMS®

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