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Application of Commercial Sorbent into Coal-derived Syngas Desulfurization Field for Clean Coal technologies Development
Chien, H.-Y. ; Chyou, Y.-P. ; Svoboda, Karel
Advanced applications of producer gas (e.g. fuel cells, catalytic processes for liquid fuels production) require deep gas cleaning. Dry desulfurization technologies of fuel gas select appropriate sorbents according to material’s physical and chemical properties like sulfur capacity, attainable sulphur concentration in gas, price, etc.. The properties of a commercial sorbent were determined by means of XRD, ICP-OES, SEM and surface area measurement. The main components of the sorbent were ZnO, CuO and alumina. The content of effective metal oxides for desulfurization reaches approx. 70% , the surface area is 90.8 m2/g. The sorbent has been used as a moderate-temperature desulfurization agent (300-600oC) for H2S removal from model gas in a fixed-bed reactor. Its H2S removal properties are promising for application in clean coal technology field. The theoretical amount of sulfur capacity according to effective metal oxide content in the sorbent is 20.5 g-S/100 g.
Fulltext: content.csg -  PDF
Plný tet: SKMBT_C22015061614110 - PDF
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Prospects of digital holographic interferometry in heat transfer measurement
Doleček, R. ; Lédl, Vít ; Kopecký, V. ; Psota, P. ; Václavík, Jan ; Vít, Tomáš
In the measurement of heat transfer problem, a holographic interferometry (HI) is often used mainly because of its unique properties and very high adaptability to different sort of problems under investigation. Although in the area of vibration or deformation measurement of solid body the standard HI is replaced massively by digital holography in the case of refractive index distribution the situation is quite opposite. In this paper we present two different types of digital holographic interferometers. The interferometers with different sensitivities have been build and successfully tested.
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