A separator system and method may provide a four-way separator that may separate a material and remove a hazardous material. The hazardous material may include gas and sand that may he removed by the four-way separator. The separator system and method may further provide a main unit that may include three chambers or recirculation hoppers, an auger sand extractor, and a strap tank. The separator system and method may provide a faster rig-up time and may be exclusively driven by hydraulics.

Systems and methods for crude oil separations including degassing, dewatering, desalting, and stabilization. One method includes separating crude oil into a crude oil off-gas and a partially degassed crude oil output; compressing the crude oil off-gas; applying the compressed crude oil off-gas for indirect heating through reboilers of the partially degassed crude oil output; and directly mixing with the crude oil a compressed atmospheric pressure gas. In some embodiments, multiple reboilers are used. In some embodiments, heat exchangers are used. Aftercoolers are used after the compressor to cool the gas; knockout drums are used after the coolers to separate liquids.

Systems and methods for crude oil separations including degassing, dewatering, desalting, and stabilization. One method includes separating crude oil into a crude oil off-gas and a partially degassed crude oil output; compressing the crude oil off-gas; applying the compressed crude oil off-gas for indirect heating through reboilers of the partially degassed crude oil output; and directly mixing with the crude oil a compressed atmospheric pressure gas. In some embodiments, multiple reboilers are used. In some embodiments, heat exchangers are used. Aftercoolers are used after the compressor to cool the gas; knockout drums are used after the coolers to separate liquids.

Commercially beneficial carbon-containing fractions can be recovered from hydrothermal liquefaction reactions in various types of processors. Feedstock slurry from waste solids is placed into a pressurized processor where it is maintained at temperature and pressure for a predetermined period. On discharge from the processor the processed discharge is separated into liquid and solid fractions. Gaseous fractions including carbon dioxide can also be removed or off-taken from the processor. New molecular structures are created in this reaction, resulting in fractions including biogas, biofuels, biosolids and biocrude. Silica, phosphates, potash and low concentration nitrogen based fertilizer, along with carbonaceous material can also be recovered.

Aging resistant emulsified asphalt compositions and related methods of preparing and applying the same for use in asphalt treatment and paving applications. The aging resistant emulsified asphalt compositions can include an aging resistant asphalt composition, emulsifier, and water. The resulting residue formed when the emulsified asphalt composition has cured is aging resistant and can be resistant to age-induced cracking even after simulated aging of 14 years and 21 years. Appropriate use of emulsifiers in some embodiments can further improve aging resistance in the residues.

A system and method to remove gas, water, and salt from crude oil via a GOSP train and discharging the crude oil from a desalter vessel of the GOSP train as unstabilized crude oil to a stabilizer distillation column, removing gas from the unstabilized crude oil via the stabilizer distillation column to reduce vapor pressure of the unstabilized crude oil to give stabilized crude oil, and diverting a bypass portion of the unstabilized crude oil discharged from the desalter vessel to the stabilized crude oil downstream of the stabilizer distillation column.

A system and method to remove gas, water, and salt from crude oil via a GOSP train and discharging the crude oil from a desalter vessel of the GOSP train as unstabilized crude oil to a stabilizer distillation column, removing gas from the unstabilized crude oil via the stabilizer distillation column to reduce vapor pressure of the unstabilized crude oil to give stabilized crude oil, and diverting a bypass portion of the unstabilized crude oil discharged from the desalter vessel to the stabilized crude oil downstream of the stabilizer distillation column.

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.

A system and method to remove gas, water, and salt from crude oil via a GOSP train and discharging the crude oil from a desalter vessel of the GOSP train as unstabilized crude oil to a stabilizer distillation column, removing gas from the unstabilized crude oil via the stabilizer distillation column to reduce vapor pressure of the unstabilized crude oil to give stabilized crude oil, and diverting a bypass portion of the unstabilized crude oil discharged from the desalter vessel to the stabilized crude oil downstream of the stabilizer distillation column.