as a soft oxidant
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United States of America Patent
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Jun 21, 2011
Grant Date -
Dec 17, 2009
app pub date -
Jun 14, 2008
filing date -
Jun 14, 2008
priority date (Note) -
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Abstract
as a soft oxidant. Carbon dioxide is used as the reaction diluent in one or more dehydrogenation reactors and to supply the heat required for the endothermic reaction of EB to styrene monomer. In the dehydrogenation reactors, two parallel reactions for styrene monomer formation occur simultaneously: (1) direct EB dehydrogenation to styrene monomer over a catalyst using heat provided by the carbon dioxide, and (2) oxidative dehydrogenation of EB with carbon dioxide to form styrene monomer.
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