Sulfur production process
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 11, 2001
Issued Date -
N/A
app pub date -
Mar 6, 2000
filing date -
Jan 13, 1999
priority date (Note) -
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Abstract
A process is provided for the removal of trace amounts of aromatic hydrocarbons from an acid waste gas feed stream comprising sulfur compounds and the aromatic hydrocarbons. An adsorption process employing an adsorbent such as a high silica zeolite adsorbent having a framework silica-to-alumina ratio greater than about 15 and having a pore size greater than about 6.2 angstroms is used to remove from the feed gas mixture aromatic hydrocarbon contaminants and permit the recovery of a high purity sulfur product from the treated effluent stream. The use of the present invention removes aromatic hydrocarbon contaminants which are responsible for the degeneration of the performance of the downstream sulfur recovery zone.
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