Methods for removal of moisture from LNG refrigerant
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United States of America Patent
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Aug 16, 2022
Grant Date -
Jul 30, 2020
app pub date -
Jan 6, 2020
filing date -
Jan 30, 2019
priority date (Note) -
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Abstract
Methods and systems for removing moisture from refrigerant that use a desiccant-based moisture removal unit can be used in the production of liquid natural gas (LNG). For example, a method can include: compressing a refrigerant; conveying at least a portion of the refrigerant to a moisture removal unit comprising a desiccant to form dehydrated refrigerant; cooling and condensing the dehydrated refrigerant to provide a cooled dehydrated liquid refrigerant; conveying the cooled dehydrated refrigerant to a heat exchanger; and passing a LNG stream rich in methane through the heat exchanger to cool at least part of the LNG stream by indirect heat exchange with the cooled dehydrated refrigerant.
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