REMOVING HEAVY HYDROCARBONS TO PREVENT DEFROST SHUTDOWNS IN LNG PLANTS
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United States of America Patent
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Issued Date -
Jan 11, 2024
app pub date -
Sep 21, 2023
filing date -
Dec 7, 2020
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Abstract
Embodiments provide a method for preventing shutdowns in LNG facilities by removing heavy hydrocarbons from the inlet gas supply. According to an embodiment, there is provided an LNG facility treating pipeline quality natural gas that is contaminated with lubrication oil and low concentrations of heavy hydrocarbons. Due to contamination, the behavior of the pipeline quality natural gas is not properly predicted by thermodynamic modeling. In an embodiment, heavy hydrocarbons are removed by a drain system in a heat exchanger. In an embodiment, heavy hydrocarbons are removed by a treatment bed.
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