Process for the production of styrene monomer by improving energy efficiency and injecting a recycle gas into the EB vaporizer
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United States of America Patent
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Mar 22, 2011
Grant Date -
Dec 17, 2009
app pub date -
Jun 14, 2008
filing date -
Jun 14, 2008
priority date (Note) -
Expired
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Abstract
This invention relates to a process for the production of styrene monomer by the dehydrogenation or oxidative dehydrogenation of ethylbenzene in the presence of recycle gas and more particularly to a method of reducing the boiling point of liquid ethylbenzene feed in the production of styrene monomer. The process comprises the step of catalytically dehydrogenating or oxydehydrogenating ethylbenzene in the presence of a mixture, wherein the mixture substantially comprises carbon dioxide, thereby catalytically producing styrene monomer.
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