Lee, Jong Yeol Jeon, Wonjin Choi, Jae-Wook Suh, Young-Woong Ha, Jeong-Myeong Suh, Dong Jin Park, Young-Kwon 2024-01-20T12:33:41Z 2024-01-20T12:33:41Z 2021-09-04 2013-04 0016-2361 https://pubs.kist.re.kr/handle/201004/128211 The oxidative coupling of methane (OCM) to produce ethane and ethylene, valuable hydrocarbons, was scaled-up using differential, mid-scale, and bench-scale reactors with 0.030, 2.73, and 40 g of packed catalysts, respectively. Organic and inorganic binders, such as methylcellulose, Al2O3, MgO, and TiO2, were mixed with Na2WO4/Mn/SiO2 catalyst powder to produce catalyst pellets, and TiO2-mixed catalyst pellets exhibited the highest C-2 hydrocarbon yield despite the lowest active catalyst content. The formation of hot spots, which suppressed the selective conversion to C2 hydrocarbons by further oxidation to CO and CO2, was observed in the mid-and bench-scale reactors because of poor heat transfer. Inert-gas-diluted reactants and lower O-2 flow may inhibit the formation of hot spots and allow the development of industry-feasible OCM processes. (c) 2013 Elsevier Ltd. All rights reserved. English ELSEVIER SCI LTD DOPED TIO2 CATALYSTS MN/NA2WO4/MGO CATALYSTS SURFACE BASICITY PERFORMANCE LA2O3 TEMPERATURE KINETICS GAS Scaled-up production of C-2 hydrocarbons by the oxidative coupling of methane over pelletized Na2WO4/Mn/SiO2 catalysts: Observing hot spots for the selective process Article 10.1016/j.fuel.2013.01.026 1 FUEL, v.106, pp.851 - 857 FUEL 106 851 857 scie scopus 000316190200103 2-s2.0-84875483598 Energy & Fuels Engineering, Chemical Energy & Fuels Engineering Article DOPED TIO2 CATALYSTS MN/NA2WO4/MGO CATALYSTS SURFACE BASICITY PERFORMANCE LA2O3 TEMPERATURE KINETICS GAS Oxidative coupling of methane Na2WO4/Mn/SiO2 Pellet Hot spot Natural gas