Selective methylation to para-xylene using fuel syngas
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United States of America Patent
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Oct 1, 2002
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N/A
app pub date -
Nov 3, 1999
filing date -
May 14, 1999
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Expired
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Abstract
It has been discovered that para-xylene (PX) can be synthesized with improved selectivity by reacting an aromatic compound such as toluene and/or benzene with a reactant(s) from fuel syngas such as a combination of hydrogen and carbon monoxide and/or carbon dioxide and/or methanol,or methylating agents produced therefrom. The combination of the selective methylation technology and a source of fuel syngas creates several advantages including simplification of the selective methylation process and utilization of low cost feeds. The fuel syngas is used on a once-through basis.
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