TY - JOUR AU - Tóth, Csenge Emese AU - Koós, Tamás AU - Török, Béla AU - Kocserha, István AU - Nagy, Gábor TI - Hulladék gumiabroncs pirolízisének energetikai szempontú elemzése, különös tekintettel a kéntartalom megoszlására JF - MAGYAR ENERGETIKA J2 - MAGYAR ENERGETIKA VL - XXXI PY - 2024 IS - 1 SP - 2 EP - 11 PG - 10 SN - 1216-8599 UR - https://m2.mtmt.hu/api/publication/34612448 ID - 34612448 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Mai Duc , Thuan AU - Koós, Tamás AU - Sebe, Emese AU - Siménfalvi, Zoltán AU - Kállay, András Arnold TI - Efficiency Enhancement of the Single Line Multi-Stage Gasification of Hungarian Low-Rank Coal: Effects of Gasification Temperature and Steam/Carbon (S/C) Ratio JF - ENERGIES J2 - ENERGIES VL - 16 PY - 2023 IS - 11 PG - 16 SN - 1996-1073 DO - 10.3390/en16114427 UR - https://m2.mtmt.hu/api/publication/33932946 ID - 33932946 AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Nagy, Gábor AU - Varga, Dániel AU - Koós, Tamás TI - Biogáz-előállítás sertés hígtrágya és vízinövények felhasználásával JF - MAGYAR ENERGETIKA J2 - MAGYAR ENERGETIKA VL - 30 PY - 2023 IS - 1 SP - 15 EP - 20 PG - 6 SN - 1216-8599 UR - https://m2.mtmt.hu/api/publication/33754248 ID - 33754248 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Shehab, Mohammed AU - Dorogházi, Emma AU - Szabó, Szilvia AU - Valsesia, Andrea AU - Chauhan, Tanya AU - Koós, Tamás AU - Muránszky, Gábor AU - Szabó, Tamás AU - Hernádi, Klára AU - Németh, Zoltán TI - Virus and bacterial removal ability of TiO2 nanowire-based self-supported hybrid membranes JF - ARABIAN JOURNAL OF CHEMISTRY J2 - ARAB J CHEM VL - 16 PY - 2023 IS - 1 PG - 10 SN - 1878-5352 DO - 10.1016/j.arabjc.2022.104388 UR - https://m2.mtmt.hu/api/publication/33250422 ID - 33250422 LA - English DB - MTMT ER - TY - JOUR AU - Alktranee, Mohammed AU - Shehab, Mohammed AU - Németh, Zoltán AU - Bencs, Péter AU - Hernádi, Klára AU - Koós, Tamás TI - Energy and exergy assessment of photovoltaic-thermal system using tungsten trioxide nanofluid: An experimental study JF - INTERNATIONAL JOURNAL OF THERMOFLUIDS J2 - INT J THERMOFLUIDS VL - 16 PY - 2022 PG - 11 SN - 2666-2027 DO - 10.1016/j.ijft.2022.100228 UR - https://m2.mtmt.hu/api/publication/33131127 ID - 33131127 LA - English DB - MTMT ER - TY - JOUR AU - Shehab, Mohammed AU - Sharma, Nikita AU - Valsesia, Andrea AU - Karacs, Gábor AU - Kristály, Ferenc AU - Koós, Tamás AU - Leskó, Anett Katalin AU - Nánai, Lilla AU - Hernádi, Klára AU - Németh, Zoltán TI - Preparation and Photocatalytic Performance of TiO2 Nanowire-Based Self-Supported Hybrid Membranes JF - MOLECULES J2 - MOLECULES VL - 27 PY - 2022 IS - 9 PG - 13 SN - 1420-3049 DO - 10.3390/molecules27092951 UR - https://m2.mtmt.hu/api/publication/32808257 ID - 32808257 LA - English DB - MTMT ER - TY - JOUR AU - Leskóné Majoros, Lívia AU - Fintor, Krisztián AU - Koós, Tamás AU - Szakáll, Sándor AU - Kristály, Ferenc TI - Metamorphic graphite from Szendrőlád (Szendrő Mts., NE-Hungary) detected by simultaneous DTA-TG JF - JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY J2 - J THERM ANAL CALORIM VL - 147 PY - 2022 IS - 4 SP - 3417 EP - 3425 PG - 9 SN - 1388-6150 DO - 10.1007/s10973-021-10713-6 UR - https://m2.mtmt.hu/api/publication/32021709 ID - 32021709 LA - English DB - MTMT ER - TY - JOUR AU - Shehab, Mohammed AU - Sharma, Nikita AU - Karacs, Gábor AU - Kristály, Ferenc AU - El Mrabate, Bilal AU - Chauhan, Tanya AU - Koós, Tamás AU - Leskó, Anett Katalin AU - Palotás, Árpád Bence AU - Hernádi, Klára AU - Németh, Zoltán TI - Effect of the synthesis parameters on the formation of TiO2 nanostructures: controllable synthesis and adsorption properties of nanowires and nanotubes JF - KÖRFORGÁSOS GAZDASÁG ÉS KÖRNYEZETVÉDELEM / CIRCULAR ECONOMY AND ENVIRONMENTAL PROTECTION J2 - CIRC ECON ENVIRON PROTECT VL - 5 PY - 2021 IS - 3 SP - 16 EP - 38 PG - 23 SN - 2560-1024 UR - https://m2.mtmt.hu/api/publication/32577514 ID - 32577514 LA - English DB - MTMT ER - TY - JOUR AU - Kecsmár, Gergő AU - Koós, Tamás AU - Dobó, Zsolt TI - Influence of WPO (Waste Plastic Oil) - gasoline mixtures for emission characteristics on working spark-ignition engine JF - ANALECTA TECHNICA SZEGEDINENSIA J2 - REV FAC ENG ANALECTA TECH SZEGED VL - 15 PY - 2021 IS - 1 SP - 31 EP - 36 PG - 6 SN - 1788-6392 DO - 10.14232/analecta.2021.1.31-36 UR - https://m2.mtmt.hu/api/publication/32468202 ID - 32468202 LA - English DB - MTMT ER - TY - JOUR AU - Shehab, Mohammed AU - Karacs, Gábor AU - Koós, Tamás AU - Sharma, Nikita AU - Hernádi, Klára AU - Németh, Zoltán TI - Adsorptive removal of methylene blue by TiO2 nanowire / Fe2O3 nanocomposite JF - KÖRFORGÁSOS GAZDASÁG ÉS KÖRNYEZETVÉDELEM / CIRCULAR ECONOMY AND ENVIRONMENTAL PROTECTION J2 - CIRC ECON ENVIRON PROTECT VL - 5 PY - 2021 IS - 2 SP - 16 EP - 28 PG - 13 SN - 2560-1024 UR - https://m2.mtmt.hu/api/publication/32467220 ID - 32467220 LA - English DB - MTMT ER -