A desalination system that includes a plurality of evaporators that are fluidly connected in series, a primary compressor that is fluidly connected to the evaporators to provide a compressed vapor to the evaporators to run the desalination system, and a secondary compressor that is arranged in parallel relative to the primary compressor, wherein the secondary compressor extracts a portion of vapor from a first evaporator and/or one intermediate evaporator in the series and delivers the vapor to the first evaporator. Various combinations of embodiments of the desalination system are provided.

A desalination system that includes a plurality of evaporators that are fluidly connected in series, a primary compressor that is fluidly connected to the evaporators to provide a compressed vapor to the evaporators to run the desalination system, and a secondary compressor that is arranged in parallel relative to the primary compressor, wherein the secondary compressor extracts a portion of vapor from a first evaporator and/or one intermediate evaporator in the series and delivers the vapor to the first evaporator. Various combinations of embodiments of the desalination system are provided.

Certain aspects of natural gas liquid fractionation plant waste heat conversion to simultaneous power and cooling capacities using integrated organic-based compressor-ejector-expander triple cycles system can be implemented as a system. The system includes a first waste heat recovery heat exchanger network thermally coupled to multiple heat sources of a Natural Gas Liquid (NGL) fractionation plant. The first heat exchanger network is configured to transfer at least a portion of heat generated at the multiple heat sources to a first buffer fluid flowed through the first heat exchanger network. The system includes an integrated triple cycle system configured to generate cooling capacity to cool one or more heat sources of the plurality of heat sources. The system includes a second waste heat recovery heat exchanger network thermally coupled to the integrated triple cycle system, and configured to vaporize at least a portion of a second buffer fluid flowed through the integrated triple cycle system.

A system includes a gas turbine system having a heat recovery steam generator (HRSG), a compressor, an intercooler, and a steam turbine. The HRSG is configured to receive an exhaust gas, heat a first working fluid with the exhaust gas, and route the first working fluid to the steam turbine, where the steam turbine is configured to extract energy from the first working fluid, and where the intercooler is configured to receive a compressed air from the compressor of the gas turbine engine and to cool the compressed air to a first controllable temperature determined by engine controls with a second working fluid having a second controllable temperature suitable for cooling the compressed air to the first controllable temperature determined by the engine controls. The system also includes a first feed heater of a distillation system, where the first feed heater is configured to receive the mixture and the second working fluid such that the second working fluid sinks heat to the mixture. The system also includes a first-effect vessel of the distillation system. The first-effect vessel is configured to receive the mixture from the first feed heater and to receive the first working fluid from the steam turbine, such that the first working fluid sinks heat to the mixture.

Certain aspects of natural gas liquid fractionation plant waste heat conversion to cooling capacity using Kalina Cycle can be implemented as a system, which includes a waste heat recovery heat exchanger to heat a buffer fluid stream by exchange with a heat source in a natural gas liquid fractionation plant. The system includes a Kalina cycle energy conversion system including one or more first energy conversion heat exchangers to heat a first portion of a working fluid by exchange with the heated buffer fluid stream, a separator to receive the heated working fluid and to output a vapor stream of the working fluid and the liquid stream of the working fluid, and a cooling subsystem including a first cooling element to condense the vapor stream of the working fluid and a second cooling element configured to cool a process fluid stream from the natural gas liquid fractionation plant by exchange with the condensed vapor stream of the working fluid.

Certain aspects of natural gas liquid fractionation plant waste heat conversion to simultaneous power, cooling and potable water using modified Goswami Cycle and new modified MED system can be implemented as a system. In an example implementation, the system includes a waste heat recovery heat exchanger network coupled to multiple heat sources of a Natural Gas Liquid (NGL) fractionation plant, the heat exchanger network configured to transfer at least a portion of heat generated at the multiple heat sources to a first buffer fluid and a second buffer fluid flowed through the first heat exchanger network. The system includes a first sub-system configured to generate power and sub-ambient cooling capacity, the first sub-system thermally coupled to the waste heat recovery heat exchanger. The system includes a second sub-system configured to generate potable water from brackish water, the second sub-system thermally coupled to the waste heat recovery heat exchanger.

Certain aspects of natural gas liquid fractionation plant waste heat conversion to simultaneous power and potable water using Kalina Cycle and modified multi-effect-distillation system can be implemented as a system. The system includes a waste heat recovery heat exchanger network coupled to multiple heat sources of a Natural Gas Liquid (NGL) fractionation plant. The heat exchanger network is configured to transfer at least a portion of heat generated at the multiple heat sources to a first buffer fluid and a second buffer fluid flowed through the first heat exchanger network. The system includes a first sub-system configured to generate power. The first sub-system is thermally coupled to the waste heat recovery heat exchanger. The system includes a second sub-system configured to generate potable water from brackish water. The second sub-system is thermally coupled to the waste heat recovery heat exchanger.

A desalination system that includes a plurality of evaporators that are fluidly connected in series, a primary compressor that is fluidly connected to the evaporators to provide a compressed vapor to the evaporators to run the desalination system, and a secondary compressor that is arranged in parallel relative to the primary compressor, wherein the secondary compressor extracts a portion of vapor from a first evaporator and/or one intermediate evaporator in the series and delivers the vapor to the first evaporator. Various combinations of embodiments of the desalination system are provided.

A desalination system that includes a plurality of evaporators that are fluidly connected in series, a primary compressor that is fluidly connected to the evaporators to provide a compressed vapor to the evaporators to run the desalination system, and a secondary compressor that is arranged in parallel relative to the primary compressor, wherein the secondary compressor extracts a portion of vapor from a first evaporator and/or one intermediate evaporator in the series and delivers the vapor to the first evaporator. Various combinations of embodiments of the desalination system are provided.

The invention discloses a method of removing dissolved elements from a liquid. The method comprises a first heating step for heating the liquid using a first heat source, a plurality of distillation steps for purifying the liquid heated by the first heating step, each of the plurality of distillation steps comprising at least one evaporation step and at least one condensation step, and a second heating step, using a second heat source to heat a plurality of flashing chambers, each generating a volume of vapor; wherein the vapor from at least one of the plurality of flashing chambers of the second heating step is introduced into at least one of the plurality of distillation steps.