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US 2009/0152209 A1Published application
Method for treatment of process waters
AssigneeKellogg Brown & Root LLC
InventorRAVINDRA K. AGRAWAL
Life of this patent
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Abstract
Systems and methods for treating water. Water containing one or more thermally destructible contaminants can be contacted with one or more oxidants to provide an effluent containing essentially contaminant-free water and a recycle containing the one or more oxidants and at least a portion of the one or more thermally destructible contaminants. The one or more thermally destructible contaminants in the recycle can be thermally destroyed using one or more combustion processes.
Claims20
A method for treating water comprising:
- stripping a first effluent comprising water and one or more thermally destructible contaminants with one or more oxidants to provide a first recycle comprising the one or more oxidants and at least a portion of the one or more thermally destructible contaminants and a third effluent comprising water;
- and
- destructing the thermally destructible contaminants present in the first recycle using one or more combustion processes.
A method for treating water comprising:
- contacting a second effluent comprising water, one or more thermally destructible contaminants, and one or more thermally indestructible contaminants with steam, to provide a second recycle comprising the steam and at least a portion of the one or more thermally indestructible contaminants and a second intermediate containing the water and at least a portion of the one or more thermally destructible contaminants;
- treating the second recycle within an acid recovery unit;
- contacting the second intermediate with one or more oxidants to provide a first recycle containing the one or more oxidants and at least a portion of the one or more thermally destructible contaminants and a third effluent containing the water;
- and
- destructing the thermally destructible contaminants present in the first recycle using one or more combustion processes.
2 more elements
A method for treating water comprising:
- gasifying a hydrocarbon using one or more gasifiers to provide a raw syngas comprising one or more thermally destructible contaminants, and one or more thermally indestructible contaminants at an elevated temperature;
- cooling the raw syngas using contact and non-contact cooling to provide a cooled syngas and a second effluent comprising water, one or more thermally indestructible contaminants and one or more thermally destructible contaminants;
- contacting the second effluent with steam to provide a second recycle comprising the steam and at least a portion of the one or more thermally indestructible contaminants and a second intermediate comprising the water and at least a portion of the one or more thermally destructible contaminants;
- treating the second recycle using the acid gas unit in a hydrocarbon gasification process;
- stripping the second intermediate with one or more oxidants to provide a first recycle containing the one or more oxidants and at least a portion of the one or more thermally destructible contaminants and a third effluent containing the water;
- destructing the thermally destructible contaminants present in the first recycle using one or more combustion processes;
- and
- treating the third effluent for reuse.
5 more elements
Dependencies are inferred from the claim text.