03383ntm a2200349 i 4500 MY-KuUP 20260612122245.0 t|||||r|||| 000 0 ta 260612t20242024my a|||fr|||| 000 0 eng d THE0010600 (Local) Hardback UMPSA eng UMPSA rda FTKKP .Y44 2024 r Bc. Heng, Yee Phang, author. Syngas production via bi-reforming of methane using transition metal based catalysts / Heng Yee Phang Kuantan, Pahang : UMPSA, 2024 © 2024 xv, 41 pages : illustrations ; rdacontent text rdamedia unmediated rdacarrier volume rda text file PDF Faculty of Chemical and Process Engineering Technology Final Year Report (Bachelor of Chemical Engineering ) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2024 Include bibliographical reference Amidst global concerns over greenhouse gas emissions and fossil fuel depletion, the exploration of clean and sustainable energy became paramount. This research explored the field of methane bi-reforming, an innovative process that simultaneously produced syngas and reduced emissions of both methane and carbon dioxide. Catalyst deactivation in bi-reforming posed challenges, necessitating optimization for enhanced efficiency. This research priortized Ni and Co catalysts because of their balance between effectiveness and affordability. Hence, mono-metallic (Ni and Co) and bi-metallic (Ni-Co) were evaluated via bi-reforming of methane in this study. Three catalysts, 15%Ni/CeO2-CaO, 15%Co/CeO2-CaO and 7.5%Ni-7.5%Co/CeO2-CaO were synthesized using an ultrasonic impregnation-assisted technique and employed in bi-reforming of methane reaction for 8 hours. XRD, BET, SEM and TPO analysis were used to characterize the catalyst. Performance studies were conducted with different catalyst and temperature settings. In accordance with BET analysis, 7.5%Ni-7.5%Co/CeO2-CaO catalyst, possessing the largest surface area, demonstrated the greatest catalytic activity. The results from bi-reforming of methane reaction indicated 7.5%Ni-7.5%Co/CeO2-CaO catalyst displayed superior performance. This was evident in its high conversions, reaching 84% and 92% for CH4 and CO2 respectively, at a temperature of 800°C. Temperature variation experiments on the bi-metallic catalyst identified 900°C as optimal, achieving 91% CH4 conversion and 75% CO2 conversion. Unexpectedly, the high temperature resulting high ratio of H2/CO. This can be explained by the basic support provided by CeO2-CaO, facilitating the adsorption of CO2 while preventing reverse water gas shift reaction from producing CO. Post-reaction XRD on the spent catalyst at 800°C revealed crystalline graphite structures associated with carbon deposition while a lower degree of graphitization at lower temperatures. TPO analysis demonstrated that the bi-metallic catalyst had a high catalytic activity by showing significant amount of graphitic carbon had been deposited on its surface. Faculty of Chemical and Process Engineering Technology Dissertations Universities and colleges Dissertations Theses Dissertations lcc PSM 0 0 lcc 0 0 10000 10000 2026-06-12 0 FTKKP .Y44 2024 r Bc. T000004139 2026-06-12 12:23:04 2026-06-12 RESTRICT 104990 104996