Method and device for producing lower olefins from oxygenates
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United States of America Patent
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Apr 12, 2011
Grant Date -
May 28, 2009
app pub date -
Oct 27, 2005
filing date -
Nov 2, 2004
priority date (Note) -
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Abstract
Method and device for manufacturing at least one low olefin from an oxygenate-containing first reaction mixture (11) through conversion by a catalyst (20) to an olefin and paraffin-containing second reaction mixture (21) where the second reaction mixture (21) is flowed through a separation system (300), in which one at least one low olefin-containing first product stream (31) and at least one paraffin-enriched fraction (321) is extracted and where the remaining product stream (322) is at least partially recirculated to the catalyst (20).
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