Production of elemental sulfur and methane from H{sub 2}S and CO{sub 2} derived from a coal desulfurization process. Quarterly technical progress report, January 1--March 31, 1996 Page: 4 of 15

Work Performed
Adsorption of Sulfur Vapor on Selected Materials
The investigation was performed on two experimental systems. The first experimental
system for adsorption of sulfur vapor on selected materials is schematically shown in Figure
1. Elemental sulfur is loaded in a Pyrex glass tube which is 1 inch in I.D. and 10 inches in
length. A total amount of sulfur is approximately 30 grams. Oxygen free nitrogen is used to
purge the inside glass tube to maintain an inert environment. The flowrate is controlled by a
rotameter. The adsorbents are loaded into a small basket made of stainless steel screen. The
amount of adsorbent used in the each run is around 400-500 mg. The Pyrex glass tube,
containing the adsorbent basket and sulfur, is heated by a tubular furnace to reach the
expected experimental temperatures. Two K-type thermocouples are used in the system. One
measures the temperature of the adsorbent basket, the other is connected to the tubular
furnace which monitors the upper temperature limit.
The adsorbents were obtained from commercial sources. The adsorbents tested were
A1203 (two kinds of shape), CoO-MoO3-Alumina and activated carbon. Oxygen free nitrogen
was purchased from Wright Brothers Inc., a distributor for the Matheson Gas Products.
Sublimed sulfur powder was obtained from Fisher Scientific Inc. Cobalt-molybdenum (CoO-
MoO3-Alumina, Crosfield 465, 1/20" extruded) was obtained from Crosfield Catalysts (4099
West 71st Street, Chicago, Illinois 60629). The aluminum oxide was purchased from
Engelhard Corporation (120 Pine Street, Elyria, Ohio 44035). The activated carbon (mesh
12 x 40) was obtained from Autochem North America (Mineral Products Division, Three

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Gong, S.Y.; Jiang, X.; Khang, S.J. & Keener, T.C. Production of elemental sulfur and methane from H{sub 2}S and CO{sub 2} derived from a coal desulfurization process. Quarterly technical progress report, January 1--March 31, 1996, report, December 31, 1996; United States. (https://digital.library.unt.edu/ark:/67531/metadc690914/m1/4/ocr/: accessed May 21, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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