@article{MTMT:34504365,
	title = {Aramid fiber recovery from waste composite by pyrolysis},
	url = {https://m2.mtmt.hu/api/publication/34504365},
	author = {Sebe, Emese and Kállay, András Arnold},
	doi = {10.35925/j.multi.2023.2.6},
	journal-iso = {MULTIDISZCIPLINÁRIS TUDOMÁNYOK},
	journal = {MULTIDISZCIPLINÁRIS TUDOMÁNYOK: A MISKOLCI EGYETEM KÖZLEMÉNYE},
	volume = {13},
	unique-id = {34504365},
	issn = {2062-9737},
	abstract = {Due to their outstanding mechanical properties and temperature resistance, aromatic polyamides are widely used for reinforcement in composite materials. The high consumption leads to an increasing waste generation. The recycling of composites requires a complex process, therefore the investigation of aramid fiber recovery is still in the middle of attention. In this study, the pyrolytic behavior of a waste aramid composite was investigated. Then laboratory-scale pyrolysis experiments were performed in a tubular reactor at 400 °C.},
	year = {2023},
	eissn = {2786-1465},
	pages = {70-77}
}

@article{MTMT:34504274,
	title = {Synthesis gas production by the co-gasification of RDF-based pyrolysis char and tar},
	url = {https://m2.mtmt.hu/api/publication/34504274},
	author = {Sebe, Emese and Kállay, András Arnold},
	doi = {10.35925/j.multi.2023.1.19},
	journal-iso = {MULTIDISZCIPLINÁRIS TUDOMÁNYOK},
	journal = {MULTIDISZCIPLINÁRIS TUDOMÁNYOK: A MISKOLCI EGYETEM KÖZLEMÉNYE},
	volume = {13},
	unique-id = {34504274},
	issn = {2062-9737},
	abstract = {We aimed to study the possibilities of synthesis gas production using char and tar originating from a Refuse-Derived Fuel (RDF) pyrolysis pilot plant. The main product of the thermal waste treatment plant is pyrolysis gas, while currently, the char is not utilized. During the pyrolysis process, a large amount of tar is also generated. Our goal was to find a more ecologically friendly alternative than landfilling in the case of both by-products. Steam gasification experiments were conducted at 900 °C in a small tubular reactor. The carbon conversion of the char-tar blend reached 95.3%.},
	year = {2023},
	eissn = {2786-1465},
	pages = {278-286}
}

@article{MTMT:34402289,
	title = {DEVELOPMENT OF LAB-SCALE GASIFICATION SYSTEMS FOR DIFFERENT POSSIBLE APPLICATIONS},
	url = {https://m2.mtmt.hu/api/publication/34402289},
	author = {Sebe, Emese and Nagy, Gábor and Kállay, András Arnold},
	doi = {10.14232/analecta.2023.4.25-33},
	journal-iso = {REV FAC ENG ANALECTA TECH SZEGED},
	journal = {ANALECTA TECHNICA SZEGEDINENSIA},
	volume = {17},
	unique-id = {34402289},
	issn = {1788-6392},
	year = {2023},
	eissn = {2064-7964},
	pages = {25-33},
	orcid-numbers = {Nagy, Gábor/0000-0003-3571-9122}
}

@article{MTMT:34344503,
	title = {Steam gasification of char derived from refuse-derived fuel pyrolysis: adsorption behaviour in phenol solutions},
	url = {https://m2.mtmt.hu/api/publication/34344503},
	author = {Sebe, Emese and Nagy, Gábor and Kállay, András Arnold},
	doi = {10.1080/09593330.2023.2283794},
	journal-iso = {ENVIRON TECHNOL},
	journal = {ENVIRONMENTAL TECHNOLOGY},
	unique-id = {34344503},
	issn = {0959-3330},
	year = {2023},
	eissn = {1479-487X},
	orcid-numbers = {Nagy, Gábor/0000-0003-3571-9122}
}

@article{MTMT:34265360,
	title = {Kommunális hulladék alapú alternatív tüzelőanyag termikus hasznosításának lehetőségei},
	url = {https://m2.mtmt.hu/api/publication/34265360},
	author = {Sebe, Emese and Kállay, András Arnold},
	journal-iso = {Doktorandusz Almanach},
	journal = {Doktorandusz Almanach},
	volume = {2023},
	unique-id = {34265360},
	issn = {2939-7294},
	year = {2023},
	pages = {209-219}
}

@article{MTMT:33932946,
	title = {Efficiency Enhancement of the Single Line Multi-Stage Gasification of Hungarian Low-Rank Coal: Effects of Gasification Temperature and Steam/Carbon (S/C) Ratio},
	url = {https://m2.mtmt.hu/api/publication/33932946},
	author = {Mai Duc , Thuan and Koós, Tamás and Sebe, Emese and Siménfalvi, Zoltán and Kállay, András Arnold},
	doi = {10.3390/en16114427},
	journal-iso = {ENERGIES},
	journal = {ENERGIES},
	volume = {16},
	unique-id = {33932946},
	issn = {1996-1073},
	abstract = {Coal gasification is considered a promising solution for the production of synthetic fuels and eventually as a fuel for combined heat and power systems and heating buildings. There are several factors that affect the gasification efficiency and syngas quality, such as gasification parameters (temperature, pressure, etc.), reactants and their ratio, utilisation of catalysts, and gasifier design. The multi-stage gasifier is known as a promising approach in the enhancement of process efficiency, as well as the syngas quality. In this study, the Hungarian brown coal was gasified in a two-stage gasifier. The pyrolysis stage was kept at 600 °C. The gasification stage was conducted at 700, 800, and 900 °C. The steam per carbon (S/C) ratio was examined at 0.75, 1.00, and 1.25. The positive effects of increasing gasification temperature on char and dry gas yield were obviously shown at all S/C ratios. The increase in the S/C ratio did not show a positive effect at all temperature conditions, especially at 700 and 900 °C. The highest dry syngas yield was 1.14 Nm3/kgcoal obtained at 900 °C and the S/C ratio of 1.25. The increase in the gasification temperature also had a significant impact on the volume fraction of CO and CO2. Meanwhile, the syngas concentration varied slightly when the S/C ratio increased from 0.75 to 1.25. From a chemical utilization point of view, the gasification temperature at 900 °C and the S/C ratio of 1.25 resulted in the most promising H2/CO ratio of 1.99. In addition, the highest carbon conversion and cold gas efficiency were achieved at 900 °C and an S/C ratio of 1.00–1.25, respectively.},
	year = {2023},
	eissn = {1996-1073},
	orcid-numbers = {Siménfalvi, Zoltán/0000-0003-2641-9638}
}

@misc{MTMT:33827115,
	title = {Thermogravimetric Analysis of Hungarian Refuse Derived Fuel Under Inert Atmosphere},
	url = {https://m2.mtmt.hu/api/publication/33827115},
	author = {Sebe, Emese and Tóth, Csenge Emese and Kállay, András Arnold},
	unique-id = {33827115},
	year = {2023}
}

@article{MTMT:33558599,
	title = {Hungarian Low-Rank Coal Gasification And Single Line Multi-Stage Gasification: Short Review},
	url = {https://m2.mtmt.hu/api/publication/33558599},
	author = {Mai Duc , Thuan and Kállay, András Arnold},
	doi = {10.32974/mse.2022.002},
	journal-iso = {HUNG MATER CHEM SCI ENG},
	journal = {HUNGARIAN MATERIALS AND CHEMICAL SCIENCES AND ENGINEERING},
	volume = {47},
	unique-id = {33558599},
	issn = {3004-0000},
	abstract = {Presently, the thermochemical process is widely used in the utilisation of fossil fuels. In which, gasification processes are the most attractive solutions for the cleaner utilisation of coal. One of the main challenges is the development of the reactor considering a better conversion efficiency. In this paper, the background research shows that there is a field of research with a gap within the gasification of low rank coals, especially regarding the fine-tuning of the synthesis gas composition within the process. There are several research focusing on multistage gasifiers, however, these approaches mainly focused on the multi-stage gasification of biomass fuel to enhance the quality of synthesis gas, especially in the reduction of tar content to use in combustion process as internal combustion engine or combined heat and power plant. In addition, using air as reactant showed the poor result in the ratio of H2/CO for further direct application in the chemical process.},
	year = {2023},
	eissn = {3004-0817},
	pages = {16-31}
}

@article{MTMT:33558542,
	title = {Developement of Application Tailored Low-Cost Steam Generator for Gasification Process},
	url = {https://m2.mtmt.hu/api/publication/33558542},
	author = {Mai Duc , Thuan and Kállay, András Arnold},
	doi = {10.32974/mse.2022.003},
	journal-iso = {HUNG MATER CHEM SCI ENG},
	journal = {HUNGARIAN MATERIALS AND CHEMICAL SCIENCES AND ENGINEERING},
	volume = {47},
	unique-id = {33558542},
	issn = {3004-0000},
	abstract = {The gasification process is considered as the centre of clean coal technology. Several types of gasifying reactants can be used in the gasification process. Amongst them, using steam is recommended for the high concentration of hydrogen in the synthesis gas. Commercially available steam generators are readily available to purchase in the market. However, their cost and accessibility are the main disadvantages for use in tailored research applications as laboratory scale gasification. In this paper, the development and setting up of a steam generator will be presented, with the mass flow ratecontrolled by a microcontroller. The total power of the steam generator is 1800 W, and the mass flow rate is adjustable between 1 and 20 g/min. The produced steam can be supplied by the steam generator at a high temperature of 300 °C continuosly during the experiment. The main advantage of this steam generator is the cost/value of the tailored setup that could also be easily connected to the main PLC controller of the gasifier.},
	year = {2023},
	eissn = {3004-0817},
	pages = {32-43}
}

@article{MTMT:33558497,
	title = {Coal Char Steam Gasification Of Three Different Hungarian Coal Types},
	url = {https://m2.mtmt.hu/api/publication/33558497},
	author = {Mai Duc , Thuan and Kállay, András Arnold},
	doi = {10.32974/mse.2022.001},
	journal-iso = {HUNG MATER CHEM SCI ENG},
	journal = {HUNGARIAN MATERIALS AND CHEMICAL SCIENCES AND ENGINEERING},
	volume = {47},
	unique-id = {33558497},
	issn = {3004-0000},
	abstract = {In this study, there were two brown coal sample and a black coal sample gasified in a down draft fixed bed reactor at 800 and 900 °C, within 10 g/min of steam flow rate in all experiments. The aim of this research is the investigation of gasification process using Hungarian brown coal char and back coal char samples from pyrolysis process in the distribution of dry gas yields, as well as the synthesis gas composition. Based on the gasification experiments, the brown coal samples showed a potential utilisation for the gasification process. In the case of brown coal samples, the gasification time was shorter at the higher gasification temperature. Using steam as reactant in the gasification process generated a significant quantity of gas with a high hydrogen concentration, which may be suitable to produce secondary raw materials, as methanol.},
	year = {2023},
	eissn = {3004-0817},
	pages = {5-15}
}