نتایج جستجو برای: آنالیز pyrolysis ftir

تعداد نتایج: 70359  

Journal: :Bioresources 2023

A comparison of pyrolysis characteristics and gas product evolution biochar with different packing arrangements was investigated. Pyrolysis properties released products rice husk char were obtained by particles in two modes packing. The results the combustion husk/char showed that maximum rate decreased curve shifted to higher temperatures when biomass covered Al2O3. volatilization analysis fro...

2017
Jiji Swaminathan Kadirvelu Krishna Deepika Rajendran

Recently, carbon nanofibers have gained immense attention in research due to its tremendous application. Here, this work highlights a simple, cost effective and reliable method to develop carbon nanofibers (CNF) from biomass. The biomass used is bacterial cellulose (BC) synthesiSed using Acetobacter xylinus. CNF was developed by freeze drying of BC followed by pyrolysis at different temperature...

2013
Zhijia Liu Zehui Jiang Benhua Fei Xing’e Liu

Chinese fir (Cunninghamia lanceolata) has great potential as a future bio-energy resource in China. Thermogravimetry (TG) was used to investigate the thermal decomposition process of Chinese fir, including heartwood and sapwood. The Flynn-Wall-Ozawa and Coats-Redfern (modified) methods were used to determine the activation energy. A combination of TG and Fourier transform infrared spectrometry ...

ژورنال: مهندسی مکانیک 2013

امروزه با افزایش روزافزون تعداد خودروها، دفع تایرهای لاستیکی فرسوده به معضلی بزرگ در مبدل شده است. این در حالی است که امکان استفاده از پودر لاستیک ضایعاتی به‌عنوان یک پرکننده در بسیاری از کاربردهای صنعتی و تجاری مسجل شده است. برای این منظور لازم است تا ترکیب‌ درصد مواد موجود در پودر تایرهای فرسوده تعیین شود. در این مقاله، از آنالیز TGA [i] برای تعیین ترکیب درصد مواد موجود در فرمولاسیون تایرهای ...

Journal: :Catalysts 2022

Tar-rich coal has been widely concerned because of its high tar yield. Two kinds tar-rich coals were studied by Thermogravimetric-Mass spectrometer-Fourier transform infrared (TG-MS-FTIR) to obtain the pyrolysis characteristics. TG-MS-FTIR was used study mass loss, gaseous compounds evolution, and functional group information during pyrolysis. Mass loss is mainly caused water release macromolec...

Journal: :Energies 2023

TG-FTIR and PY-GC/MS were used to analyze the pyrolysis behaviors of pine wood, urea-formaldehyde resin (UF resin) their blended pellets. The process was divided into three stages: water evaporation, devolatilization residue decomposition. During pellets, with increase addition ratio UF resin, peak value weight loss decreased in decomposition stage residue, while temperature shifted low-tempera...

2014
Mónica Benítez-Guerrero Jorge López-Beceiro Pedro E. Sánchez-Jiménez José Pascual-Cosp

This paper presents in a comprehensive way the thermal behavior of natural and hot-.washed sisal fibers, based on the fundamental components of lignocellulosic materials: cellulose, xylan and lignin. The research highlights the influence exerted on the thermal stability of sisal fibers by other constituents such as non-cellulosic polysaccharides (NCP) and mineral matter. Thermal changes were in...

2014
Mónica Benítez-Guerrero Luís A. Pérez-Maqueda Pedro E. Sánchez-Jiménez José Pascual

Mesoporous gamma alumina fibres of high surface area, stable up to 1000 oC, were synthesized by bioreplica technique using sisal fibres as templates. Alumina formation during pyrolysis and calcination of fibres infiltrated with aluminium chloride solution has been studied, paying special attention to the interaction between the precursor and sisal fibres, using several experimental techniques s...

Journal: : 2022

Purpose. The purpose of this work is to study the process thermal decomposition (pyrolysis) two samples a hybrid organic-inorganic (OIH) heat-insulating material based on data obtained by thermogravimetric analysis and IR-Fourier spectrometry. goal set predetermined following research tasks: find out basic chemical structure OIH (by functional groups), order processes in materials when heated n...

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