Physicochemical and Thermal Characterization of Olive Pomace (Biomass)

Bakhattar, Ilias; Asbik, Mohamed; Chater, Hamza; Alami, Khadija El; Aadnan, Imane; Zegaoui, Omar; Mouaky, Ammar; Koukouch, Abdelghani; Benzaouak, Abdellah

doi:10.1109/irsec53969.2021.9741153

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…These minerals contain alkali metals such as Na, K, Mg, and Ca, metalloids such as Al and Si, and transition metals such as Fe. The broad peak 3288 cm −1 was a stretching vibration of the -OH surface association that also appeared at the 1640 peak [33]. This association structure resulted in many hydrogen bonds in the sewage sludge.…”

Section: Ftir Analysis and X-ray Diffractionmentioning

confidence: 93%

Physicochemical Characterization, Thermal Behavior, and Pyrolysis Kinetics of Sewage Sludge

Messaoudi,

Koukouch,

Bakhattar

et al. 2024

Energies

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Pyrolysis is an energy recovery technique with significant potential for managing wastewater treatment plant byproducts. This research aims to investigate the physicochemical and thermal properties of Moroccan sludge, as well as the behavior of its decomposition during pyrolysis at three different heating speeds (5, 10, and 20 K/min). Characterization of the sludge before pyrolysis through ultimate analysis, proximate analysis, FTIR spectroscopy, and XRD revealed that the sludge consists predominantly of organic matter, with a volatile matter rate of 48%, an ash rate of 37%, and a higher heating value (HHV) of 15 MJ/kg. The TGA-DTG curves identified four distinct stages in the sludge decomposition process: drying, decomposition of organic matter, degradation of calcium carbonate, and decomposition of inorganic matter. Using TG-MS analysis, the principal gases identified during pyrolysis were H2O, H2, CH4, CO2, CO, NO, and SO. The average activation energies (Ea) determined through kinetics models were found to be 413.4 kJ/mol for the Kissinger–Akahira–Sunose (KAS) model, 419.6 kJ/mol for the Flynn–Wall–Ozawa (FWO) model, and 416.3 kJ/mol for the Starink model. The values of Ea and the pre-exponential coefficient (A) obtained through the KAS, FWO, and Starink techniques are consistent with ΔG values ranging between 152 and 155 KJ/mol. The positive ΔS values range from 0.003 to 1.415 kJ/mol.K, indicating the complexity of the sludge response during pyrolysis and the spontaneity of the chemical reaction at high temperatures. The kinetic data obtained serves as a pillar for the development and improvement of sewage sludge pyrolysis systems, reinforcing their role in sustainable energy production.

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Section: Ftir Analysis and X-ray Diffractionmentioning

confidence: 93%

Physicochemical Characterization, Thermal Behavior, and Pyrolysis Kinetics of Sewage Sludge

Messaoudi,

Koukouch,

Bakhattar

et al. 2024

Energies

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“…Some studies [1] delve into the biotechnological valorization of olive pomace as a substrate for entomopathogenic fungal biomass production, achieving impressive biomass yields. Others [2] focus on the physicochemical attributes of olive pomace, unveiling its potential as a high-energy, sustainable fuel source. Another set of investigations [3] introduces torrefaction as a pre-treatment method, revealing the value-added compounds that can be derived from olive pomace.…”

Section: Corresponding Author: Chaitsofiane1@gmailcommentioning

confidence: 99%

Theoretical simulation of olive pomace pyrolysis for biomass energy: A sustainable approach to waste reduction and energy efficiency

Chait,

Chater,

Laaroussi

et al. 2023

E3S Web of Conf.

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This scientific investigation explores the conversion of olive pomace waste from Moroccan oil mills into valuable biomass energy via pyrolysis. The study involves three pivotal parts: Our research encompasses a multifaceted approach, beginning with a comprehensive review of olive pomace, pyrolysis, gasification, and biomass combustion to establish a robust foundational knowledge base. Following this, we embark on developing a physical and mathematical model for pyrolysis alongside determining crucial thermo-physical properties, thus setting the stage for subsequent simulations. In the final phase, our study conducts intricate simulations of the pyrolysis process, precisely calculating gas and solid temperatures at multiple pivotal points while accounting for fluctuations in solid temperature due to gas interactions. Employing a TDMA (Thomas Algorithm) approach to iteratively solve the system's equations, we simultaneously derive temperature values for both gas and solid phases. Notably, our research integrates critical thermal data, including the initial assumption of a uniform solid temperature at 293 K, an incoming gas temperature of 600 K, and an existing gas temperature post-pyrolysis of 514.52 K, while considering non-uniform solid temperatures. This comprehensive research underscores the potential of pyrolysis as a sustainable biomass energy source, addressing waste management concerns and championing environmental sustainability.

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Physicochemical characterization, thermal analysis and pyrolysis kinetics of lignocellulosic biomasses

et al. 2023

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Physicochemical and Thermal Characterization of Olive Pomace (Biomass)

Cited by 3 publications

References 11 publications

Physicochemical Characterization, Thermal Behavior, and Pyrolysis Kinetics of Sewage Sludge

Physicochemical Characterization, Thermal Behavior, and Pyrolysis Kinetics of Sewage Sludge

Theoretical simulation of olive pomace pyrolysis for biomass energy: A sustainable approach to waste reduction and energy efficiency

Physicochemical characterization, thermal analysis and pyrolysis kinetics of lignocellulosic biomasses

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