A method may include: heating a hydrocarbon contaminated waste in a first heating unit, vaporizing at least a portion of water and hydrocarbons in the hydrocarbon contaminated waste and generating: a first vaporized stream and a first bottoms stream, heating the first bottoms stream in a second heating unit; vaporizing at least a portion of hydrocarbons in the first bottoms stream and generating: a second vaporized stream and a second bottoms stream, condensing the first vaporized stream to form a first condensed stream; and condensing the second vaporized stream to form a second condensed stream.

A method may include: heating a hydrocarbon contaminated waste in a first heating unit, vaporizing at least a portion of water and hydrocarbons in the hydrocarbon contaminated waste and generating: a first vaporized stream and a first bottoms stream, heating the first bottoms stream in a second heating unit; vaporizing at least a portion of hydrocarbons in the first bottoms stream and generating: a second vaporized stream and a second bottoms stream, condensing the first vaporized stream to form a first condensed stream; and condensing the second vaporized stream to form a second condensed stream.

An integrated hydrothermal process for upgrading heavy oil includes the steps of mixing a heated water stream and a heated feed in a mixer to produce a mixed fluid, introducing the mixed stream to a reactor unit to produce a reactor effluent that includes light fractions, heavy fractions, and water, cooling the reactor effluent in a cooling device to produce a cooled fluid, depressurizing the cooled fluid in a depressurizing device to produce a depressurized fluid, introducing the depressurized fluid to a flash drum configured to separate the depressurized fluid into a light fraction stream and a heavy fraction stream. The light fraction stream includes the light fractions and water and the heavy fraction stream includes the heavy fractions and water. The process further includes the step of introducing the heavy fraction stream to an aqueous reforming unit that includes a catalyst to produce an aqueous reforming outlet.

An integrated hydrothermal process for upgrading heavy oil includes the steps of mixing a heated water stream and a heated feed in a mixer to produce a mixed fluid, introducing the mixed stream to a reactor unit to produce a reactor effluent that includes light fractions, heavy fractions, and water, cooling the reactor effluent in a cooling device to produce a cooled fluid, depressurizing the cooled fluid in a depressurizing device to produce a depressurized fluid, introducing the depressurized fluid to a flash drum configured to separate the depressurized fluid into a light fraction stream and a heavy fraction stream. The light fraction stream includes the light fractions and water and the heavy fraction stream includes the heavy fractions and water. The process further includes the step of introducing the heavy fraction stream to an aqueous reforming unit that includes a catalyst to produce an aqueous reforming outlet.

A method for producing a supercritical water (SCW)-treated product is provided. The method comprising the steps of introducing a crude oil stream and a water stream to a supercritical water process, wherein the crude oil stream can undergo conversion reactions to produce the supercritical water (SCW)-treated product, wherein the SCW-treated product includes an increased paraffin concentration as compared to crude oil stream. The method further includes the step of introducing the SCW-treated product to a steam cracking process, wherein the SCW-treated product can undergo conversion reactions to produce furnace effluent.

A method for producing a supercritical water (SCW)-treated product is provided. The method comprising the steps of introducing a crude oil stream and a water stream to a supercritical water process, wherein the crude oil stream can undergo conversion reactions to produce the supercritical water (SCW)-treated product, wherein the SCW-treated product includes an increased paraffin concentration as compared to crude oil stream. The method further includes the step of introducing the SCW-treated product to a steam cracking process, wherein the SCW-treated product can undergo conversion reactions to produce furnace effluent.

The present application provides systems and methods for upgrading an oil stream. The system includes a reactor, a phase separator, an expansion device, a cooling unit, and two separation units. The reactor receives the oil stream, ammonia, and supercritical water. The supercritical water upgrades the oil stream, and the ammonia reacts with sulfur initially present in the oil stream to produce ammonia-sulfur compounds. The phase separator receives a mixture stream comprising the upgraded oil stream, supercritical water, and the ammonia-sulfur compounds, and separates out non-dissolved components. The expansion device reduces the pressure of the mixture stream below a water critical pressure. The cooling unit reduces the temperature of the mixture stream. A first separation unit separates the mixture stream it into a hydrocarbon-rich gaseous phase, a water stream containing ammonia-sulfur compounds, and a treated oil stream. A second separation unit separates the ammonia-sulfur compounds from the water stream.

The present application provides systems and methods for upgrading an oil stream. The system includes a reactor, a phase separator, an expansion device, a cooling unit, and two separation units. The reactor receives the oil stream, ammonia, and supercritical water. The supercritical water upgrades the oil stream, and the ammonia reacts with sulfur initially present in the oil stream to produce ammonia-sulfur compounds. The phase separator receives a mixture stream comprising the upgraded oil stream, supercritical water, and the ammonia-sulfur compounds, and separates out non-dissolved components. The expansion device reduces the pressure of the mixture stream below a water critical pressure. The cooling unit reduces the temperature of the mixture stream. A first separation unit separates the mixture stream it into a hydrocarbon-rich gaseous phase, a water stream containing ammonia-sulfur compounds, and a treated oil stream. A second separation unit separates the ammonia-sulfur compounds from the water stream.

A distillation device including: a first distillation column having first top, bottom and upper outlets and first upper and lower inlets; a second distillation column equipped with a top condenser and a bottom reboiler, and having second top, bottom and upper outlets and second upper and lower inlets; a vapor recompressor; a heat exchanger; a first supply line supplying a feedstock to the first lower inlet; a first connection line transferring a first bottom flow to the second lower inlet via the heat exchanger; and a second connection line transferring a second top flow to the top condenser via the heat exchanger after passing through the vapor recompressor. The first bottom flow flowing through the first connection line and the second top flow flowing through the second connection line are heat-exchanged in the heat exchanger. A distillation method of a feedstock using the distillation device.

A distillation device including: a first distillation column having first top, bottom and upper outlets and first upper and lower inlets; a second distillation column equipped with a top condenser and a bottom reboiler, and having second top, bottom and upper outlets and second upper and lower inlets; a vapor recompressor; a heat exchanger; a first supply line supplying a feedstock to the first lower inlet; a first connection line transferring a first bottom flow to the second lower inlet via the heat exchanger; and a second connection line transferring a second top flow to the top condenser via the heat exchanger after passing through the vapor recompressor. The first bottom flow flowing through the first connection line and the second top flow flowing through the second connection line are heat-exchanged in the heat exchanger. A distillation method of a feedstock using the distillation device.