A waste oil handling apparatus features a tank with draining compartments for receiving waste oil containers in inverted and elevated positions above the tank floor. Multiple drain ports communicate with the tank interior at different elevations relative to the floor for draining accumulated contents of varying density that have gravitationally separated into distinct layers at those elevations. The ports feature adjustable fittings for adjusting the levels from which the layered contents are drawn through the ports from the tank interior. The tank has a large cleanout access by which personnel can access the tank interior for thorough cleanout. The compartments are organized into one or more troughs, each having a pivotal lid thereon. Lift brackets under the floor enable lifted transport of the tank by pallet jack or forklift.

A flow back system for separating solids from a slurry recovered from a hydrocarbon well. The system includes a V-shaped tank with a first series of baffles configured to cause the settling of solids that are moved by a shaftless auger to a conduit fluidly connected to hydrocyclones mounted over a linear shaker. The overflow from the hydrocyclones is discharged through a second conduit back into the tank for processing by a second series of baffles resulting in a clean effluent. The clean effluent is recirculated in the well.

Methods that reduce fouling of equipment in a quench water recycling loop of a steam cracker quench system by separating tar from water in the quench water recycling loop. The methods may include settling a bottom stream comprising pyrolysis gasoline, from a quench tower, in at least two quench water settlers in parallel, each of the quench water settlers producing a settler hydrocarbon stream and a settler bottom quench water stream. The methods may also include mixing a bottom stream comprising pyrolysis gasoline, from a quench tower, with quench tower effluent water to form a combined stream. The method may further include settling the combined stream in at least two quench water settlers in parallel to produce settler hydrocarbon streams, settler bottom quench water streams, and settler process water streams.

A transportable modular system for emergency treatment of water polluted by liquid hydrocarbon spillage comprises: at least a first containerized treatment module, comprising a container in the form of a standard size intermodal container which houses a coalescence separator device, configured to operate an oil/water separation; a suction pipe having a first end connected to the coalescence separator device and a second end provided with an inlet connected to at least one floating skimmer; a pump positioned on the suction pipe; a water drain pipe and an oil drain pipe, connected to a water outlet and an oil outlet, respectively, of the coalescence separator device.

A system that includes a feedstock of a non-petroleum or renewable feedstock containing oxygen and contaminants of one or more of metals, gums, and resins that is introduced into the reactor at a flow velocity of from 20 ft/sec to 100 ft/sec. The feedstock is heated within the reactor to a temperature of from 700° F. to 1100° F. to remove and/or reduce the content of one or more of gums and resins in the fats and/or oils of the feedstock. The system further includes a reactor product that is formed in the reactor from the feedstock that has the one or more of gums and resins in the fats and/or oils of the feedstock removed and/or reduced and a heat exchanger to cool the reactor product. A separator unit separates and removes non-condensable gases, metals and water from the cooled reactor product. A final product of the system is separated from the non-condensable gases, metals and water from the cooled reactor product. The final product has an oxygen content that is 60% or less of that of the feedstock, and wherein the final product comprises 25 wt % or less of any triglycerides, monoglycerides, diglycerides, free fatty acids, phosphatides, sterols, tocopherols, tocotrienols, and fatty alcohols, from 5 wt % to 30 wt % naphtha, and 50 wt % or more diesel.

Provided is a system and method for producing and purifying biodiesel. In particular, the system comprises a tandem arrangement of at a modular biodiesel reactor and a continuous flow separation and purification unit. The system can further comprise an evaporation unit that is placed between the biodiesel reactor and the continuous flow separation and purification unit.

This invention was designed to condense, separate and collect volatile compounds from the vapor steam as they exit the dehydrator. Bulk condensate is allowed to accumulate and separate in a separator vessel under vacuum. The undesirable water phase condensate is periodically drained into a water vessel, which is also held under vacuum instead of atmospheric pressure to avoid agitation and mixing of the contents of the separator vessel arising from purging the separator vessel to atmosphere. The separated and desirable oily condensates can then be easily recovered from the separator vessel.

According to one or more embodiments, sulfate ions may be removed from seawater to form an injection fluid by a method including passing the seawater and formation water to a mixing tank. The seawater may comprise sulfate ions. The formation water may comprise barium ions. The seawater and formation water may be passed to the mixing tank in a ratio determined by a computerized geochemical model. The method may further include mixing the seawater and formation water to form a mixed fluid and passing the mixed fluid to a clarifier, where a barium sulfate precipitate may be formed and at least a portion of the barium sulfate precipitate may be separated from the mixed fluid. The method may further include passing the mixed fluid to a microfiltration system, where at least a portion of the barium sulfate precipitate may be removed from the mixed fluid to form an injection fluid.

A system for crude oil desalting and dehydration includes a separation vessel defining a cavity extending along a central axis having a substantially-vertical orientation. The separation vessel comprises a first distributor configured to distribute a mixture within the cavity of the separation vessel, and a second distributor configured to distribute a wash fluid within the cavity of the separation vessel. The mixture comprises crude oil, water, dissolved salts, free salts, or combinations thereof, and the wash fluid comprises an aqueous fluid. The first distributor is disposed within the cavity below the second distributor, and an interface level controller is configured to detect an interface between an oil phase and an aqueous phase and to maintain the interface within a predetermined range within the cavity.

A method and a system for separating an oil-in-water emulsion in a water-oil separation plant (WSOP) are provided. An exemplary method includes feeding the oil-in-water emulsion to the WSOP, and forcing the oil-in-water emulsion through a silica sand filter to separate the oil and form a separated water stream.