Systems and processes for heat recovery associated with the separation of hydrocarbon components. Two compressors are used to compress a portion of an overhead vapor stream from a fractionation column. A pressure of the liquid portion of the compressed overhead is reduced and used to recover heat from an overhead of another separation zone having a fractionation column. Once the heat has been recovered the stream is recompressed. The recovered heat may be removed from the recompressed stream in a reboiler of another fractionation column. The fractionation columns may comprise a deethanizer stripper, propane-propylene splitter, and a depropanizer column.

A mobile mechanical vapor recompression evaporator system including a horizontal vapor separator and a horizontal forced circulation heat exchanger. The horizontal vapor separator can include a generally cylindrical housing configured in a generally horizontal orientation. The housing can include at least one product chamber having at least one product passage configured to receive at least one product. The housing further includes at least one vapor chamber having at least one vapor passage and at least one vapor window located between the at least one product chamber and the at least one vapor chamber, wherein a portion of the at least one product evaporates in the product chamber to produce a vapor that passes through the at least one vapor window into the at least one vapor chamber, and is discharged through the at least one vapor passage.

A multi-effects desalination system includes a plurality of vessels, including a first vessel, a second vessel, a third vessel, a fourth vessel, and a fifth vessel. Each vessel includes a plurality of heat tubes, a sprayer, and a housing including a preheater tube bundle. Each sprayer can be disposed above a respective plurality of heat tubes in each vessel for discharging saline water onto the plurality of heat tubes. A first tube connects a compressor unit with the first vessel. A second tube extends between a saline water source and a plurality of sprayers. Each vessel is configured to accommodate a different effect or stage of desalination occurring in the system. The housing can be configured for collecting fresh water. The fresh water collected in each housing can be transferred by the third tube to a fresh water tank.

Systems and processes for heat recovery associated with the separation of hydrocarbon components. Two compressors are used to compress a portion of an overhead vapor stream from a fractionation column. A pressure of the liquid portion of the compressed overhead is reduced and used to recover heat from an overhead of another separation zone having a fractionation column. Once the heat has been recovered the stream is recompressed. The recovered heat may be removed from the recompressed stream in a reboiler of another fractionation column. The fractionation columns may comprise a deethanizer stripper, propane-propylene splitter, and a depropanizer column.

The present invention provides a configuration of a multi-stage flash desalination system including a thermal vapor compressor and a condensate flash tank, which allows to extract a vapor from the condensate before it is returned to the power plant and to compress this vapor and use it as part of the heating steam in the brine heater, which reduces the required amount of steam supply from the power plant, while the condensate returned to the power plant at a reduced temperature allows to utilize low grade heat of exhaust gases of a steam generator to re-heat the condensate, which results in a reduced energy consumption allocated to the multi-stage flash desalination plant and an improvement of the energy efficiency of the power plant.

The present disclosure relates to a distillation system using waste heat, the system comprising: a waste heat supply source which receives feedstock and separates the feedstock by a difference of boiling point, wherein waste heat is generated during separation of the feedstock; a heat-exchange unit which receives water from a water supply source and which evaporates the water by heat-exchange of the water with the waste heat supplied from the waste heat supply source; a mechanical vapor recompression module (MVR) which receives water vapor generated in the heat-exchange unit and which compresses the water vapor; and a waste water supply which supplies waste water generated in a separate process to the heat-exchange unit such that the amount of saturated water vapor which is supplied to the mechanical vapor recompression module is increased.

A mobile mechanical vapor recompression evaporator system including a horizontal vapor separator and a horizontal forced circulation heat exchanger. The horizontal vapor separator can include a generally cylindrical housing configured in a generally horizontal orientation. The housing can include at least one product chamber having at least one product passage configured to receive at least one product. The housing further includes at least one vapor chamber having at least one vapor passage and at least one vapor window located between the at least one product chamber and the at least one vapor chamber, wherein a portion of the at least one product evaporates in the product chamber to produce a vapor that passes through the at least one vapor window into the at least one vapor chamber, and is discharged through the at least one vapor passage.