A Process Of Converting Methanol To Olefins
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United States of America Patent
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Issued Date -
May 4, 2023
app pub date -
Mar 12, 2021
filing date -
Mar 19, 2020
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Abstract
The present invention relates to a process of converting methanol to olefins, comprising: feeding a feedstock comprising methanol to a fluidized bed reactor to contact with catalysts to produce an olefin product, wherein the process at least partially deactivates the catalysts to format least partially deactivated catalysts; feeding spent catalysts from the at least partially deactivated catalysts to a regenerator for regeneration, thereby forming regenerated catalysts, and returning the activated catalysts from the regenerated catalysts to the reactor via a regenerated catalyst line; characterized in that on the regenerated catalyst line, the oxygen content by volume in the gas phase component at the outlet of the regenerated catalyst line is controlled to be less than 0.1%, preferably less than 0.05%, and more preferably less than 0.01%.
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