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US 12,195,333 B2Granted
Liquid sulfur degassing
AssigneeFluor Technologies Corporation
InventorsStephen N. Fenderson, Thomas K. T. Chow
Life of this patent
Estimating the term…
Abstract
A method and system for liquid sulfur degassing is disclosed. The method and system generally involve degassing liquid sulfur in a degassing vessel, and the level of the liquid sulfur in the degassing vessel is controlled in the degassing vessel by determining the level of liquid sulfur in the degassing vessel.
Claims20
A liquid sulfur degassing system comprising:
- a degassing vessel configured to receive liquid sulfur and a stripping gas therein and to contact the liquid sulfur with the stripping gas so as to produce a bottom stream comprising degassed liquid sulfur and an overhead stream comprising a hydrogen sulfide enriched stripping gas, wherein the contact between the liquid sulfur and the stripping gas forms a level of froth present on the liquid sulfur within the degassing vessel;
- a level bridle that is fluidly connected to the degassing vessel;
- and
- a liquid level controller configured to:
- determine a level of the liquid sulfur in the degassing vessel, wherein, to determine the level of the liquid sulfur in the degassing vessel, the liquid level controller is configured to:
- measure a second level of the liquid sulfur via a sensor in the level bridle, where the second level is different than the level of froth present on the liquid sulfur within the degassing vessel, wherein the sensor is configured to measure liquid level via differential pressure, radar, capacitance, or combinations thereof;
- determine the level of the liquid sulfur in the degassing vessel based on the second level measured in the level bridle;
- and
- control the level of the liquid sulfur in the degassing vessel based on the level of the liquid sulfur determined for the degassing vessel.
6 more elements
A liquid sulfur degassing system comprising:
- a degassing vessel configured to receive liquid sulfur and a stripping gas therein and to contact the liquid sulfur with the stripping gas so as to form a level of froth present on the liquid sulfur within the degassing vessel;
- and
- a liquid level controller directly or indirectly connected to the degassing vessel and configured to:
- measure a second level of the liquid sulfur via a sensor in a level bridle that is fluidly connected to the degassing vessel, where the second level is different than the level of froth present on the liquid sulfur within the degassing vessel, wherein the sensor is configured to measure liquid level via differential pressure, radar, capacitance, or combinations thereof;
- determine the level of the liquid sulfur in the degassing vessel based on the second level measured in the level bridle;
- and
- control the level of the liquid sulfur in the degassing vessel based on the level of the liquid sulfur determined for the degassing vessel.
4 more elements
Dependencies are inferred from the claim text.