Investigation of Characteristics and Thermal Behaviour of Lignocellulosic Waste Biomass Using Thermogravimetric Analysis

This paper focuses on lignocellulosic waste biomass originating from food industry, which should find its further application in order to fulfill demands of circular economy. Therefore, here are presented some of the chemical and physical properties that affect combustion process, as well as thermochemical reaction kinetics for lignocellulosic biomass wastes. The biomass investigated was peach stone particles originating from food industry. The results have showed that peach stones can be characterized as good energy alternative renewable material, with properties that allow its safe thermochemical conversion. Kinetic analysis of this biomass was performed using Thermogravimetric Analysis (TGA) with a simple reaction model applied, namely n-th order reaction model. The obtained results have confirmed the complex nature of this material and the need for further modelling.

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Characterization of Different Types of Biomass Wastes Using Thermogravimetric and ICP-MS Analyses

Revista de Chimie ◽

10.37358/rc.19.12.7797 ◽

2020 ◽

Vol 70 (12) ◽

pp. 4594-4600

Keyword(s):

Thermogravimetric Analysis ◽

Food Industry ◽

Wood Waste ◽

Biomass Ash ◽

Minor Elements ◽

Ms Analysis ◽

Icp Ms ◽

Different Types

The purpose of this study was to characterize some types of biomass wastes resulted from different activities such as: agriculture, forestry and food industry using thermogravimetric and ICP-MS analyses. Also, it was optimized an ICP-MS method for the determination of As, Cd and Pb from biomass ash samples. The ICP-MS analysis revealed that the highest concentration of metals (As, Cd, Pb) was recorded in the wood waste ash sample, also the thermogravimetric analysis indicated that the highest amount of ash was obtained for the same sample (26.82%). The biomass wastes mentioned in this study are alternative recyclable materials, reusable as pellets and briquettes. Keywords: ash, biomass, ICP-MS, minor elements, TG

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Preparation and Characterization of Activated Carbon Derived from Lignocellulosic Waste Biomass

2020 III International Conference on High Technology for Sustainable Development (HiTech) ◽

10.1109/hitech51434.2020.9363971 ◽

2020 ◽

Author(s):

Vesislava Toteva ◽

Kamelia Ruskova ◽

Alexander Zahariev

Keyword(s):

Activated Carbon ◽

Waste Biomass ◽

Lignocellulosic Waste ◽

Characterization Of Activated Carbon

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Isothermal Kinetic Analysis of the Thermal Decomposition of Wood Chips from an Apple Tree

Processes ◽

10.3390/pr9020195 ◽

2021 ◽

Vol 9 (2) ◽

pp. 195

Author(s):

Ivan Vitázek ◽

Martin Šotnar ◽

Stella Hrehová ◽

Kristína Darnadyová ◽

Jan Mareček

Keyword(s):

Thermal Decomposition ◽

Apple Tree ◽

Combustion Process ◽

Reaction Model ◽

Wood Chips ◽

Small Scale ◽

Exponential Factor ◽

Air Atmosphere ◽

First Order Chemical Reaction ◽

Isothermal Kinetic

The thermal decomposition of wood chips from an apple tree is studied in a static air atmosphere under isothermal conditions. Based on the thermogravimetric analysis, the values of the apparent activation energy and pre-exponential factor are 34 ± 3 kJ mol−1 and 391 ± 2 min−1, respectively. These results have also shown that this process can be described by the rate of the first-order chemical reaction. This reaction model is valid only for a temperature range of 250–290 °C, mainly due to the lignin decomposition. The obtained results are used for kinetic prediction, which is compared with the measurement. The results show that the reaction is slower at higher values of degree of conversion, which is caused by the influence of the experimental condition. Nevertheless, the obtained kinetic parameters could be used for the optimization of the combustion process of wood chips in small-scale biomass boilers.

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Development of a New Stoichiometric Equilibrium-Based Model for Wood Chips and Mixed Paper Wastes Gasification by ASPEN Plus

Volume 6: Energy ◽

10.1115/imece2019-10586 ◽

2019 ◽

Cited By ~ 2

Author(s):

Sahar Safarianbana ◽

Runar Unnthorsson ◽

Christiaan Richter

Keyword(s):

Moisture Content ◽

Aspen Plus ◽

Wood Chips ◽

Thermochemical Conversion ◽

Waste Biomass ◽

Operation Conditions ◽

High Heating Value ◽

Cold Gas Efficiency ◽

Wide Range ◽

Steady State Simulation

Abstract Wood and paper residues are usually processed as wastes, but they can also be used to produce electrical and thermal energy through processes of thermochemical conversion of gasification. This study proposes a new steady state simulation model for down draft waste biomass gasification developed using the commercial software Aspen Plus for optimization of the gasifier performance. The model was validated by comparison with experimental data obtained from six different operation conditions. This model is used for analysis of gasification performance of wood chips and mixed paper wastes. The operating parameters of temperature and moisture content (MC) have been varied over wide range and their effect on the high heating value (HHV) of syngas and cold gas efficiency (CGE) were investigated. The results show that increasing the temperature improves the gasifier performance and it increases the production of CO and H2 which leads to higher LHV and CGE. However, an increase in moisture content reduces gasifier performance and results in low CGE.

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Carboxymethyl cellulase production optimization from Glutamicibacter arilaitensis strain ALA4 and its application in lignocellulosic waste biomass saccharification

Preparative Biochemistry & Biotechnology ◽

10.1080/10826068.2018.1514513 ◽

2018 ◽

Vol 48 (9) ◽

pp. 853-866 ◽

Cited By ~ 6

Author(s):

Chirom Aarti ◽

Ameer Khusro ◽

Paul Agastian

Keyword(s):

Cellulase Production ◽

Production Optimization ◽

Waste Biomass ◽

Lignocellulosic Waste ◽

Carboxymethyl Cellulase ◽

Biomass Saccharification

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Computational Analysis of Non-Premixed Combustion in a Scramjet Combustor With a Wedge Shaped Strut Injector

10.1115/fedsm2021-65951 ◽

2021 ◽

Author(s):

Sajal Katare ◽

Nagendra P. Yadav

Keyword(s):

Computational Analysis ◽

Static Pressure ◽

Computational Study ◽

Combustion Process ◽

Combustion Efficiency ◽

Reaction Model ◽

Premixed Combustion ◽

Cold Flow ◽

Flame Holder ◽

Scramjet Combustor

Abstract This paper focuses the computational study of non-premixed combustion in a scramjet combustor. The wedge shaped strut injector was used in the combustion process. In order to investigate the flame holding mechanism of the wedge shaped strut in supersonic flow, the two-dimensional coupled implicit RANS equations, the standard k-ε turbulence model and the finite-rate/eddy-dissipation reaction model are introduced to simulate the flow field of the hydrogen fueled scramjet combustor with a strut flame holder under different conditions. The static pressure of the case under the engine ignition condition is much higher than that of the case under the cold flow condition. The reflection of shock waves improves the mixing of hydrogen with the stream of inlet air and thus increases combustion efficiency. The mass flow rate of air is optimized for the best performance of engine.

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