Recycling of waste energy and desalter effluent water for industrial reuse

A system for crude oil treatment, the system comprising:

• a high pressure production trap operable to separate a high pressure gas stream comprising gaseous hydrocarbons from an inlet crude stream to generate a high pressure crude stream;
• a low pressure production trap fluidly connected to the high pressure production trap, the low pressure production trap operable to separate a low pressure gas stream comprising gaseous hydrocarbons from the high pressure crude stream to generate a low pressure crude stream and the low pressure gas stream;
• a low pressure degassing tank fluidly connected to the low pressure production trap, the low pressure degassing tank operable to separate a degassing tank gas stream comprising gaseous hydrocarbons from the low pressure crude stream;
• a first compressor fluidly connected to the high pressure production trap, the first compressor operable to compress the high pressure gas stream to generate a compressed high pressure gas stream;
• a first separation vessel fluidly connected to the first compressor, the first separation vessel operable to contact a first high salinity stream comprising water and salt and the compressed high pressure gas stream such that water vapor is created to generate a first waste stream comprising water and salt and a first saturated gas stream comprising water vapor and gaseous hydrocarbons;
• a first aftercooler fluidly connected to the first separation vessel, the first aftercooler operable to cool the compressed high pressure gas stream to generate a cooled first saturated gas stream;
• a first knockout drum fluidly connected to the first aftercooler, the first knockout drum operable to separate a first low salinity water stream comprising water from the cooled first saturated gas stream to generate a first export gas stream comprising gaseous hydrocarbons;
• a second compressor fluidly connected to the low pressure production trap, the second compressor operable to compress the low pressure gas stream to generate a compressed low pressure gas stream;
• a second separation vessel fluidly connected to the first compressor, the first separation vessel operable to contact a second high salinity stream comprising water and salt and the compressed low pressure gas stream such that water vapor is created to generate a second waste stream comprising water and salt and a second saturated gas stream comprising water vapor and gaseous hydrocarbons;
• a second aftercooler fluidly connected to the second separation vessel, the second aftercooler operable to cool the compressed low pressure gas stream to generate a cooled second saturated gas stream;
• a second knockout drum fluidly connected to the second aftercooler, the second knockout drum operable to separate a second low salinity water stream comprising water from the cooled second saturated gas stream to generate a second export gas stream comprising gaseous hydrocarbons;
• a third compressor fluidly connected to the low pressure degassing tank, the third compressor operable to compress the degassing tank gas stream to generate a compressed degassing tank gas stream;
• a third separation vessel fluidly connected to the third compressor, the third separation vessel operable to contact a third salinity stream comprising water and salt and the compressed degassing tank gas stream such that water vapor is created to generate a third waste stream comprising water and salt and a third saturated gas stream comprising water vapor and gaseous hydrocarbons;
• a third aftercooler fluidly connected to the third separation vessel, the third aftercooler operable to cool the compressed degassing tank gas stream to generate a cooled third saturated gas stream;
• and
• a third knockout drum fluidly connected to the third aftercooler, the third knockout drum operable to separate a third low salinity water stream comprising water from the cooled third saturated gas stream to generate a third export gas stream comprising gaseous hydrocarbons.