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US 4,982,050 AGranted
Natural gas treating system including mercury trap
AssigneeMobil Oil Corporation
InventorsDouglas J. Gammie, Tsoung Y. Yan
Life of this patent
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Abstract
A method and system for mechanically removing mercury from natural gas are provided. A mercury trap is positioned at substantially the coldest point in the system before a main heat exhanger. The trap includes a bend in the natural gas flow path, baffles, a demister and/or a perforated cylinder for changing the direction of the flow path and causing mercury to be deposited therein.
Claims8
A method of removing mercury from natural gas prior to its entry into a heat exchanger, comprising:
- providing a heat exchanger;
- providing a conduit for conveying natural gas to said
- conveying mercury-containing natural gas through said conduit to said heat exchanger;
- cooling said natural gas prior to its entry within said heat exchanger;
- providing a bend within said conduit at substantially the coldest point within said conduit;
- and
- causing said natural gas to flow through a tortuous pathway within said bend within said conduit, said natural gas changing direction within said bend and impinging upon at least one trap surface positioned adjacent to said heat exchanger and at said substantially the coldest point within said conduit prior to entering said heat exchanger, thereby trapping mercury contained in said natural gas.
4 more elements
Dependencies are inferred from the claim text.