التفاصيل البيبلوغرافية
| العنوان: |
Analysis of the Pyrolysis Kinetics, Reaction Mechanisms, and By-Products of Rice Husk and Rice Straw via TG-FTIR and Py-GC/MS |
| المؤلفون: |
Li Lin, Yang E, Qiang Sun, Yixuan Chen, Wanning Dai, Zhengrong Bao, Weisheng Niu, Jun Meng |
| المصدر: |
Molecules, Vol 30, Iss 1, p 10 (2024) |
| بيانات النشر: |
MDPI AG, 2024. |
| سنة النشر: |
2024 |
| المجموعة: |
LCC:Organic chemistry |
| مصطلحات موضوعية: |
rice residues, pyrolysis, kinetics, master plot method, TG-FTIR, Py-GC/MS, Organic chemistry, QD241-441 |
| الوصف: |
This study employed thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), and pyrolysis gas chromatography/mass spectrometry (Py-GC/MS) to characterize and provide insights into the pyrolysis behaviors and by-products of rice husk (RH) and rice straw (RS). The primary pyrolysis range is partitioned into three stages, designated as pseudo-hemicellulose, pseudo-cellulose, and pseudo-lignin pyrolysis, by an asymmetric bi-Gaussian function. The average activation energies of the three pseudo-components of RH were estimated by the Flynn–Wall–Ozawa and Starink methods to be 179.1 kJ/mol, 187.4 kJ/mol, and 239.3 kJ/mol, respectively. The corresponding values for RS were 171.8 kJ/mol, 185.8 kJ/mol, and 203.2 kJ/mol. The results of the model-fitting method indicated that the diffusion model is the most appropriate for describing the pseudo-hemicellulose reaction. The reaction of pseudo-cellulose and pseudo-lignin is most accurately described by a nucleation mechanism. An accelerated heating rate resulted in enhanced pyrolysis performance, with RS exhibiting superior performance to that of RH. RH produces 107 condensable pyrolysis by-products, with ketones, acids, and phenols representing the largest proportion; RS produces 135 species, with ketones, phenols, and alcohols as the main condensable by-products. These high-value added by-products have the potential to be utilized in a variety of applications within the agricultural, bioenergy, and chemical industries. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
1420-3049 |
| Relation: |
https://www.mdpi.com/1420-3049/30/1/10; https://doaj.org/toc/1420-3049 |
| DOI: |
10.3390/molecules30010010 |
| URL الوصول: |
https://doaj.org/article/64dd5b9d908842459c6bc11861cbbe01 |
| رقم الانضمام: |
edsdoj.64dd5b9d908842459c6bc11861cbbe01 |
| قاعدة البيانات: |
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