Improved TGA-MS measurements for evolved gas analysis (EGA) during pyrolysis process of various biomass feedstocks. Syngas energy balance determination

Radojević, Miloš; Janković, Bojan; Stojiljković, Dragoslava; Jovanović, Vladimir; Čeković, Ivana; Manić, Nebojša

doi:10.1016/j.tca.2021.178912

Cited by 23 publications

(11 citation statements)

References 87 publications

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“…The mass spectrometry analysis was performed on the quadrupole mass sensor directly coupled with a simultaneous thermal analyzer to determine the following amu’s 2, 12, 15, 17, 18, 26, 27, 29, 30, 39, 41, 42, 43, 44, 45, and 58 by bar graph cycles. The selection and further analysis of monitoring amu’s were done according to the previous work of authors [ 7 ] and data from NIST database in order to identify the evolved gasses of interests for the energy utilization of tested face mask samples (H 2 , H 2 O, CO 2 , and light hydrocarbons). The calculation of all considered combustion parameters for tested samples was done according to the mathematical expressions given by Aich et al [ 8 ].…”

Section: Methodsmentioning

confidence: 99%

Thermal characteristics and combustion reactivity of coronavirus face masks using TG-DTG-MS analysis

Manić

Janković

Stojiljković

et al. 2022

J Therm Anal Calorim

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The presented paper deals with the influence of the heating rate on combustion characteristics (reactivity and reactivity evaluation, ignition index ( D i ), burnout index ( D f ), the combustion performance index ( S ), and the combustion stability index ( R W )) of the protective coronavirus face masks. Two types of commonly used face masks in different state (new and exploited) were investigated by TG-DTG analysis in an air atmosphere, directly coupled with mass spectrometry (MS). Based on the experimental results, the impact of ultimate and proximate analysis data on the evolved gas analysis (EGA) was discussed. Also, the derived values from thermo-analytical (TA) data were compared with the literature reports, related to individual constitutive face mask materials. According to the performed research, it was established that different maximal reaction rate values at various heating rates indicate the complex nature of coronavirus face mask thermo-oxidative degradation, which is stimulated with carbon oxidation reactions and volatile matter (VM) release. By detailed analysis of obtained TG-DTG profiles, it was established that process takes place through the multiple-step reaction pathways, due to many vigorous radical reactions, causes by polymers degradation. The performed research was done to evaluate the possible utilization of coronavirus waste to energy production and sustainable pandemic environmental risk reduction.

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Section: Methodsmentioning

confidence: 99%

Thermal characteristics and combustion reactivity of coronavirus face masks using TG-DTG-MS analysis

Manić

Janković

Stojiljković

et al. 2022

J Therm Anal Calorim

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“…The mass spectra of N 2 , C 2 H 4 , and C 2 H 6 have the same amu 28. Since the TG-MS analysis was conducted under an N 2 atmosphere, the data for C 2 H 4 and C 2 H 6 was not presented as N 2 would have disturbed the amu 28 [45].…”

Section: Tga-ms Analysismentioning

confidence: 99%

“…Radojevi´c et al [45] proposed a new method for estimating the quantity of gas components present in syngas. Based on the method, the volumetric share per unit mass of the gas component is determined using the below equation.…”

Section: Semi-quantitative Gas Analysismentioning

confidence: 99%

Biochar development from thermal TGA studies of individual food waste vegetables and their blended systems

Elkhalifa

Parthasarathy

Mackey

et al. 2022

Biomass Conv. Bioref.

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The amount of food waste that is generated all over the world is enormous. As food wastes are rich in nutrients and organics, they serve as a potential source for the generation of many value-added commodities and energy. In most countries, food wastes are predominately dumped in open lands or incinerated, along with other combustible materials such as municipal solid wastes, for the possible extraction of energy. However, these two modes of food wastes disposal are encountering more and more environmental, technical, and economical challenges. More recently, it has been realized that food wastes can be transformed into energy and value-added products, such as horticultural biochars, using thermochemical technologies such as pyrolysis and gasification. In the current research work, three selected food items, carrots, cucumbers, and tomatoes, have been studied using thermogravimetric analysis. The biochar analysis involves one single food item (carrot), one binary mixture (carrot + cucumber), and one ternary blend of carrot, cucumber, and tomato. Two heating rates were used in order to perform kinetic modeling studies using the Arrhenius and Coats-Redfern models. Since the production of the pyrolysis gases—for energy and chemicals production—is of major economic significance regarding the overall process viability, the TGA syngas for a single component, binary component and tertiary component systems were analyzed by TGA coupled mass spectrometry. The results of the gas analysis indicate an increase in hydrogen generation due to blending the food wastes.

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“…It was shown that, by this procedure which involves overlapping multiple curves supervising, the identification of gases in the volatiles complex scheme becomes more simplified. Easy and reliable calculations of gaseous product yield and syngas energy capacities are possible to achieve [ 119 ]. Babinszki et al studied biomass wastes derived from palm oil production [ 120 ].…”

Section: Applications To Biomassmentioning

confidence: 99%

On-Line Thermally Induced Evolved Gas Analysis: An Update—Part 1: EGA-MS

et al. 2022

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Advances in on-line thermally induced evolved gas analysis (OLTI-EGA) have been systematically reported by our group to update their applications in several different fields and to provide useful starting references. The importance of an accurate interpretation of the thermally-induced reaction mechanism which involves the formation of gaseous species is necessary to obtain the characterization of the evolved products. In this review, applications of Evolved Gas Analysis (EGA) performed by on-line coupling heating devices to mass spectrometry (EGA-MS), are reported. Reported references clearly demonstrate that the characterization of the nature of volatile products released by a substance subjected to a controlled temperature program allows us to prove a supposed reaction or composition, either under isothermal or under heating conditions. Selected 2019, 2020, and 2021 references are collected and briefly described in this review.

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Improved TGA-MS measurements for evolved gas analysis (EGA) during pyrolysis process of various biomass feedstocks. Syngas energy balance determination

Cited by 23 publications

References 87 publications

Thermal characteristics and combustion reactivity of coronavirus face masks using TG-DTG-MS analysis

Thermal characteristics and combustion reactivity of coronavirus face masks using TG-DTG-MS analysis

Biochar development from thermal TGA studies of individual food waste vegetables and their blended systems

On-Line Thermally Induced Evolved Gas Analysis: An Update—Part 1: EGA-MS

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