Method for the element of mercury from a feedstock downstream of a fractionation unit
US-2017022431-A1 · Jan 26, 2017 · US
Method of reducing mercury in stabilized condensate
US12487029B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12487029-B2 |
| Application number | US-202318190943-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 27, 2023 |
| Priority date | Mar 11, 2020 |
| Publication date | Dec 2, 2025 |
| Grant date | Dec 2, 2025 |
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- Title
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Abstract
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The present invention is directed to a method for removing elemental mercury from liquid natural gas comprising changing the stabilizer column operating conditions to beneficially transfer mercury from the stabilized condensate phase to the overhead gas phase, where it may be compressed and recycled with the gas going to the existing feed gas mercury removal units.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for removing elemental mercury from a natural gas condensate feed comprising: introducing the natural gas condensate feed into a stabilizer column; operating the stabilizer column at conditions in which mercury is transferred from a stabilized condensate phase to an overhead gas phase; compressing the overhead gas phase having the transferred mercury; and recycling the compressed overhead gas phase with the transferred mercury to one or more gas-phase mercury removal units located upstream of one or more liquefaction units. 2 . The method of claim 1 , comprising controlling operating conditions of the stabilizer column such that a reboiler outlet temperature of the stabilizer column and a bottoms product temperature are within 1° C. during operation. 3 . The method of claim 2 , wherein the natural gas condensate feed consists of a mixture of two or more streams of natural gas condensates. 4 . The method of claim 3 , wherein the reboiler outlet temperature of the stabilizer column is varied based on feed percentages of the two or more streams of natural gas condensates constituting the mixture. 5 . The method of claim 4 wherein the feed mixture is 30% from a first source and 70% from a second source, and the reboiler outlet temperature is 204° C. or greater. 6 . The method of claim 4 , wherein the feed mixture is 50% from a first source and 50% from a second source, and the reboiler outlet temperature is 199° C. or greater. 7 . The method of claim 4 , wherein the feed mixture is 70% from a first source and 30% from a second source, and the reboiler outlet temperature is 196° C. or greater.
Assignees
Inventors
Classifications
Metal content · CPC title
Boiler-condenser with multiple exchanger cores in parallel or with multiple re-boiling or condensing streams · CPC title
Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons · CPC title
Natural gas · CPC title
- C10G7/00Primary
Distillation of hydrocarbon oils · CPC title
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- What does patent US12487029B2 cover?
- The present invention is directed to a method for removing elemental mercury from liquid natural gas comprising changing the stabilizer column operating conditions to beneficially transfer mercury from the stabilized condensate phase to the overhead gas phase, where it may be compressed and recycled with the gas going to the existing feed gas mercury removal units.
- Who is the assignee on this patent?
- Chevron Usa Inc
- What technology area does this patent fall under?
- Primary CPC classification C10G7/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 02 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).