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Dijital Arşivi

Oxidative coupling of methane over lanthanum and strontium promoted magnesium catalyst

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dc.contributor Graduate Program in Chemical Engineering.
dc.contributor.advisor Yıldırım, Ramazan,
dc.contributor.author Sezen, Sezin.
dc.date.accessioned 2023-03-16T11:06:37Z
dc.date.available 2023-03-16T11:06:37Z
dc.date.issued 2014.
dc.identifier.other CHE 2014 S48
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/14641
dc.description.abstract The oxidative coupling of methane (OCM) over 10wt.%SrO/10wt.%La2O3/MgO, in the form of particulate and monolithic structures, was investigated in this thesis. The OCM performance of the catalyst, which was prepared using incipient to wetness impregnation and then wall-coating over the monolithic support, was investigated in a microflow quartz reactor.. The diameter of reactor was 10 mm around the catalyst bed and reduced to 2 mm at the exit to decrease the void volume, which was also filled with quarts chips to prevent undesired gas phase reactions. At the beginning of work, 10wt.%La2O3/MgO particulate catalyst was prepared by incipient to wetness impregnation and tested. At the following stages, the additional metal oxides (CaO and SrO) were also added. The highest yield was 8wt.% in particulate catalysts and it was observed over 10wt.%SrO/10wt.% La2O3/MgO. For the test over mullite monolith, the monolith blocks were shaped to 17 mm height and 8 mm ID first, and then they were wash-coated with MgO followed by La2O3 and/or SrO. The highest C2 yield (14.5%) was obtained at 650 oC with CH4/O2 ratio of 15 using 10wt.%SrO/10wt.% La2O3/MgO over monolith.
dc.format.extent 30 cm.
dc.publisher Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014.
dc.subject.lcsh Methane -- Oxidation.
dc.subject.lcsh Methane.
dc.subject.lcsh Oxidation.
dc.title Oxidative coupling of methane over lanthanum and strontium promoted magnesium catalyst
dc.format.pages xvi, 62 leaves ;


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