Harshini, Dasika Kwon, Yongchai Han, Jonghee Yoon, Sung Pil Nam, Suk Woo Lim, Tae-Hoon 2024-01-20T19:34:54Z 2024-01-20T19:34:54Z 2021-09-02 2010-03 0256-1115 https://pubs.kist.re.kr/handle/201004/131676 We investigated the steam reforming of methane (SRM) over various NiCo bimetallic catalysts supported on ZrO2 to determine whether the addition of Co on the Ni catalyst suppressed carbon formation. The effect of metal loading on SRM reaction was evaluated in a downflow tubular fixed-bed reactor under various steam-to-carbon (S/C) ratios and temperatures. For monitoring changes in the catalysts before and after the SRM reactions, several techniques (BET, XRD, TEM, and CHN analysis) were used. The effects of reaction temperature, gas hourly space velocity (GHSV), and molar S/C ratios were studied in detail over the various catalyst combinations. It was found that an Ni-to-Co ratio of 50 : 50 supported on ZrO2 provided the best catalytic activity, along with an absence of coking, when operated at a temperature of 1,073 K, a GHSV of 24 L g(-1) h(-1), and an S/C ratio of 3 : 1. English KOREAN INSTITUTE CHEMICAL ENGINEERS PARTIAL OXIDATION SYNTHESIS GAS COBALT HYDROGEN TEMPERATURE COKING SYNGAS Suppression of carbon formation in steam reforming of methane by addition of Co into Ni/ZrO2 catalysts Article 10.1007/s11814-010-0095-9 1 KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.27, no.2, pp.480 - 486 KOREAN JOURNAL OF CHEMICAL ENGINEERING 27 2 480 486 scie scopus kci ART001423448 000275218200017 2-s2.0-77951630566 Chemistry, Multidisciplinary Engineering, Chemical Chemistry Engineering Article PARTIAL OXIDATION SYNTHESIS GAS COBALT HYDROGEN TEMPERATURE COKING SYNGAS Methane Steam Reforming Bimetallic NiCo Alloy Catalysts