Natural gas liquid fractionation plant waste heat conversion to simultaneous power and potable water using kalina cycle and modified multi-effect-distillation system
AssigneeSaudi Arabian Oil Company
InventorsMahmoud Bahy Mahmoud Noureldin, Akram Hamed Mohamed Kamel
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Abstract
Flowing a first buffer fluid and a second buffer fluid through a heat exchanger network thermally coupled to heat sources of a Natural Gas Liquid (NGL) fractionation plant, and transferring heat from the heat sources to the first buffer fluid and the second buffer fluid. Generating power via a first sub-system thermally coupled to the heat exchanger network and generating potable water from brackish water via a second sub-system thermally coupled to the heat exchanger network.
Claims20
A method of recovering heat, comprising:
- flowing a first buffer fluid through a heat exchanger in a Natural Gas Liquid (NGL) fractionation plant, wherein the NGL fractionation plant comprising a dehydrator column, a distillation column, and a compressor;
- transferring heat, via the heat exchanger, from the NGL fractionation plant to the buffer fluid;
- and
- generating power with heat from the buffer fluid in a Kalina cycle system comprising a power turbine.
A method of recovering heat, comprising:
- flowing a buffer fluid through a heat exchanger in a Natural Gas Liquid (NGL) fractionation plant, the NGL fractionation plant comprising a distillation column and a compressor;
- transferring heat, via the heat exchanger, from the NGL fractionation plant to the buffer fluid;
- and
- generating power via a Kalina cycle system comprising a power turbine with heat from the buffer fluid.
A method of recovering heat, comprising:
- flowing a buffer fluid comprising oil through a heat exchanger in a Natural Gas Liquid (NGL) fractionation plant, wherein the NGL fractionation plant comprises a distillation column and a dryer vessel;
- transferring heat, via the heat exchanger, from the NGL fractionation plant to the buffer fluid;
- and
- generating power via a Kalina cycle system comprising a power turbine.
Dependencies are inferred from the claim text.