Process for removing pure aromatics
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United States of America Patent
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Oct 22, 1991
Issued Date -
N/A
app pub date -
Jun 21, 1990
filing date -
Jul 30, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In the removal of pure aromatics from aromatic-containing hydrocarbon mixtures by liquid-phase extraction or extractive distillation using a selective solvent, the specific cost of separation can be reduced at the same yield of aromatics or the yield of aromatics can be increased at the same specific cost of separation if the liquid-phase extraction or the extractive distillation is carried out in the presence of a reactive solid. At the same time, substantially aromatic-free raffinates are obtained.
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