CONVERSION OF BUTANEDIOL INTO BUTADIENE, WITH SCRUBBING USING DIESTERS
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United States of America Patent
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Issued Date -
May 30, 2019
app pub date -
May 9, 2017
filing date -
May 9, 2017
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Abstract
The invention pertains to a method for converting butanediol into butadiene that is fed with a butanediol feedstock, where said method comprises at least an esterification step, a pyrolysis step, and a step for separation of the pyrolysis effluent comprising at least one section for cooling said pyrolysis effluent and producing a liquid pyrolysis effluent and a steam pyrolysis effluent and a gas-liquid washing section that is fed at the top with a fraction of the butanediol diester effluent obtained from the esterification step and at the bottom with the steam pyrolysis effluent, where said section produces a butadiene effluent at the top and a washing effluent at the bottom.
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