A floating-oil recovery device includes: a bubble-curtain generation mechanism configured to discharge air into water to generate a bubble curtain in the water so as to increase a thickness of a film of floating oil while regulating spread of the floating oil; and an ejector configured to recover an oil-water mixed fluid having the floating oil and the water mixed with each other by jetting high-velocity water toward the film of floating oil enclosed with the bubble curtain to destroy the film of floating oil.

A composition for temporarily-hydrophobic and oil-absorbent powder. The present invention cleans and neutralizes oily and toxic substances from items in water of bodies of water such as ocean floors or along the surface of bodies of water. The present invention initially repels water or water-based substances and then absorbs oil-based substances. The composition includes a quantity of quicklime, a quantity of oil, a quantity of earthworm enzymes, a quantity of water, a quantity of detergent, and a quantity of rubbing alcohol. The quantity of quicklime, the quantity of oil, the quantity of earthworm enzymes, the quantity of water, the quantity of detergent, and the quantity of rubbing alcohol are heterogeneously mixed into an absorbent slurry blend.

Ionic liquid containing compositions may be used in the production, recovery and refining of oil and gas. In addition, they may be used to treat cooling water and/or to inhibit and/or prevent corrosion of metals.

Methods to increase the efficiency and throughput of hydrocarbon stream cracking by inhibiting the formation of, or resolving an emulsion, in an ethylene production quench water system. The method includes contacting a non-alkoxylated branched or linear polyethylenimine (PEI) with a quench water composition from the quench water system under conditions suitable to prevent the formation of an emulsion or to resolve the quench water composition into two immiscible phases.

The invention relates to a process for treating production water resulting from enhanced oil recovery, said production water comprising an aqueous phase and an organic phase dispersed in said aqueous phase, and at least one polymer in the aqueous phase, said process comprising: a step of bringing said production water into contact with an additive comprising at least one tetrakis(hydroxymethyl)phosphonium salt (THMP salt), a step of separating the aqueous phase and the organic phase of said production water comprising said additive, by means of a hydrocyclone.

The invention also relates to an enhanced recovery process using a step of treating the production water according to the invention.

Ionic liquid containing compositions may be used in the production, recovery and refining of oil and gas. In addition, they may be used to treat wastewater and/or to inhibit and/or prevent fouling of contaminants onto surfaces.

An oil-containing wastewater treatment method and equipment with creating and saving energy efficiency are disclosed. The method comprises the following steps of: providing the oil wastewater having a first COD value; performing the acidized demulsification treatment to the oil wastewater to separate the oil wastewater into upper layer solution and lower layer solution; performing the first coagulation sedimentation treatment to the lower layer solution to form the precipitate and upper clear solution; and performing the contact aeration treatment step to the upper clear solution by using the biological agent. Therefore, the inflow solution having a second COD value that meets the inflow standard can be obtained.

The present invention provides a method of enhanced treatment of spilled oil on water, land, and biological organism, which is able to clean the spilled oil efficiently, environmental-friendly and in a short time. The method comprises: contacting an oil spill area shrinking agent with spilled oil on an oil-spilled contaminated region or objects; wherein the oil spill area shrinking agent comprises a sulfosuccinate and a stabilizer without oil dissolving organic solvent, oil emulsifier, and organic fluorine or silicone surfactant. The method according to the present invention can be used to clean the land and water polluted by an oil spill and remove the oil spill from polluted biological organisms. It can also be used to recover spilled oil as resource and to reduce resulted environmental pollution.

A single-phase microemulsion additive may be introduced to a stream containing mixtures of or emulsions of oil and water in an effective amount to separate oil from the water in the stream and/or separating water from the oil in the stream. The single-phase microemulsion additive is formed by combining at least one demulsifier, at least one water clarifier, at least one surfactant, and optionally at least one solvent.

A process is provided for separating hydrophobic material from a mixture of hydrophobic and hydrophilic material using peptide-based amphiphilic organogelators.