Study on molten salt on torrefaction and subsequent pyrolysis of elm branches

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 222, P. 119672 - 119672

Published: Sept. 17, 2024

Language: Английский

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Investigating the Predictive Capabilities of MARS for Biomass Pyrolysis Kinetics: A Case Study on an Oil Palm Empty Fruit Bunch

ACS Omega, Journal Year: 2025, Volume and Issue: 10(4), P. 3944 - 3952

Published: Jan. 22, 2025

This study aimed to emphasize the potential of pyrolysis oil palm empty fruit bunch (PEFB) biomass as a sustainable energy source and underscore significance considering multiple factors in implementing renewable energy. The kinetic analysis PEFB was carried out using Friedman, Kissinger–Akahira–Sunose (KAS), Ozawa–Flynn–Wall (OFW), advanced Vyazovkin (VZ) methods, which yielded matching trends. average activation energies (E) were found be 187.40, 165.23, 166.24, 183.23 kJ/mol for KAS, OFW, VZ respectively. Additionally, thermodynamic parameters, specifically changes enthalpy (ΔH), entropy (ΔS‡), Gibbs free (ΔG‡) derived. Average values ΔH‡, ΔG‡, ΔS‡ 161.44, 169.52, −15.28 K, E modeled multivariate adaptive regression splines (MARS), temperature (T), heating rate (β), conversion (α) contributing factors. MARS model demonstrated high coefficient correlation (R2 = 0.987), low mean absolute error (MEA 2.71), root-mean-square (RMSE 4.94) predict E. results this highlight accurately represent complex relationships, kinetics, demonstrate feasibility source.

Language: Английский

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Thermokinetic study of tannery sludge using combustion and pyrolysis process through non-isothermal thermogravimetric analysis

Sustainable Chemistry and Pharmacy, Journal Year: 2024, Volume and Issue: 41, P. 101719 - 101719

Published: July 28, 2024

Sludge from the tannery is produced in enormous amount. This work has investigated thermal analysis behaviour of sludge by use thermogravimetric (TGA). The TGA experiments carried out both air and nitrogen environment at varied heating rates 5, 10, 20 40 °C/min temperature range 30–900 °C. In assessment kinetic parameters, model fitting (Combined kinetics) method was employed. It that degradation sample occurred three stages. Majorly conversions were observed stage II for environment. activation energy (Ea) value combustion 165.9 kJ/mol while pyrolysis Ea obtained as 65.2 conversion between 0.2 0.8 which a promising approximation supported strong R2 0.9719 0.93 respectively. estimated master plots six ideal models A1/2, A1/3, A1/4, F3, F4 D5 probably with linear fitted data nitrogen. Various thermodynamic parameters include ΔH, ΔG ΔS are also complimented indicates formation activated complex non-spontaneity reaction. detailed thermokinetic study offers novel approach to understanding how this waste material decomposes under different conditions. holistic perspective contributes valuable insights into management practices, environmental impacts, resource recovery, process optimization within leather industry. Furthermore, production processes on large scale can minimize generation enhance efficiency, strengthening competitiveness sustainability

Language: Английский

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Thermal degradation of heterogeneous plastic waste fractions: A hybrid DAEM & parallel reaction approach

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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Degradation of poly (2-ethyl-2-oxazoline) prepared at lower temperature: a study of kinetics using thermal analysis and advanced predictive modeling

Discover Chemical Engineering, Journal Year: 2024, Volume and Issue: 4(1)

Published: Nov. 29, 2024

The thermal degradation kinetics of poly(2-ethyl-2-oxazoline) (PEOX) prepared under different pH conditions were studied. Kinetic assessment was conducted by analyzing the PEOX. kinetic parameters estimated using model-free methods; including Friedman, OFW, KAS and Starink methods model-fitting method; Combined (Ck). investigation revealed that activation energy PEOX exhibited variability when conditions. During process conversion, for showed an increase synthesized neutral conditions, while it remained consistent alkaline synthesis in acidic medium led to a compromised stability, as indicated gradual reduction during its degradation. By employing artificial neural network (ANN) advanced classification regression tree (C&RT), prediction energy's evolution conducted, taking into account pH, heating rate, temperature. predictive performance C&RT model surpassed ANN determining at levels rates.

Language: Английский

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Withdrawn: Co-hydropyrolysis of sewage sludge and algae biomass: A systematic study on thermal decomposition behaviors and kinetic characteristics

Algal Research, Journal Year: 2024, Volume and Issue: unknown, P. 103559 - 103559

Published: May 1, 2024

Language: Английский

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