Process for distilling a crude composition in a rectification plant including an indirect heat pump
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United States of America Patent
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Aug 6, 2024
Grant Date -
Sep 15, 2022
app pub date -
Jul 6, 2020
filing date -
Jul 22, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A process for purifying a crude composition comprising rectifying the crude composition in a rectification plant. The rectification plant comprises a rectification column including: a first overhead condenser for condensing a head fraction, and a reboiler for evaporating a bottom fraction. A difference between a temperature of the head fraction and a temperature of the bottom fraction is less than or equal to 20° C. A heat pump is provided between the first overhead condenser and the reboiler. The heat pump is an indirect heat pump that is operated with water or methanol as a refrigerant, and the indirect heat pump includes an expansion valve and a compressor. The heat pump comprises a second condenser located upstream of the compressor.
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