Production of elemental sulfur from SO2 gas and plastics
نویسندگان
چکیده
منابع مشابه
Ceria-based catalysts for the recovery of elemental sulfur from SO2-laden gas streams
The catalytic reduction of SO2 to elemental sulfur by CO or CH4 over ceria-based catalysts under demanding operating conditions is reported in this paper. Cuor Ni-containing ceria catalysts have been shown before to be highly active and selective for SO2 reduction by CO in dry gas streams or in the presence of low amounts of H2O. In this work, the activity/selectivity of 10 at.%La-doped ceria, ...
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The catalytic reduction of sulfur dioxide with methane to form elemental sulfur has been studied. Al2O3, Cu-Al2O3 and Ni-Al2O3 were examined as catalysts and their performances were compared in terms of SO2 conversion and selectivity. Performance of the catalyst extremely enhanced when nickel and copper were added as promoters. The effects of temperature, SO2/CH4 molar ratio, and reaction...
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The catalytic reduction of SO2 to elemental sulfur by methane was studied over ceria-based catalysts. Both La-doped and undoped ceria were found to catalyze the SO2 reduction by CH4 in the temperature range of 550–750◦C at atmospheric pressure and with feed gases containing a molar ratio of CH4/SO2 = 0.5–3. At temperatures below ∼550◦C, the catalyst surface is capped by SO2. The reaction light-...
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متن کاملSO2 emissions from basaltic eruptions, and the excess sulfur issue
[1] Volcanic SO2 can affect the Earth’s environment. Where no direct measurements of SO2 in the atmosphere are available, a petrologic method of assessing sulfur release from the magma must be used. However, in studies of arcderived eruptions, satellite-based measurements of SO2 emissions using Total Ozone Mapping Spectrometer (TOMS) data are orders of magnitude greater than those calculated pe...
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ژورنال
عنوان ژورنال: Shigen-to-Sozai
سال: 2005
ISSN: 0916-1740,1880-6244
DOI: 10.2473/shigentosozai.121.90