Method for treating production wastewater from the preparation of propylene oxide by co-oxidation. The wastewater includes a first portion of wastewater having a peroxide content of 2000 mg/L or more and a second portion of wastewater having a peroxide content of 50 mg/L or less.

A system and method for oil and water separation of a crude oil composition are provided. The system includes a gravity dehydrator vessel, a heat exchanger upstream of the gravity of the dehydrator vessel, and a plurality of metallic grids located within the gravity dehydrator vessel. The system further includes a mesh metal structure within the gravity dehydrator vessel, a microwave generator operatively connected to the gravity dehydrator vessel, and a waveguide carrying microwave energy from the microwave generator. The system and method separate water and emulsions from the crude oil composition by forming an upper crude oil layer, a middle oil-water emulsion layer, and a lower oily water layer.

The invention relates to a method and a device device for converting at least one reactant(5) into a reaction product and separating the at least one reactant from the reaction product, wherein the device comprises a vessel(10) with a vessel inner volume (11) and a confinement (20) submerged in the vessel inner volume (11), the confinement (20) providing a confinement inner (21) volume which is in fluid connection with the vessel inner volume (11), wherein the vessel inner volume (11) contains a first fluid (1) with a first density p1 and a second fluid with a second density p2, with p1 > p2, so that the first fluid (1) forms a lower phase and the second fluid (2) forms an upper phase in the vessel inner volume (11), wherein the confinement contains a third fluid (3) with a third density p3 with p3 > p2 so that the second fluid forms an upper layer and the third fluid forms a lower layer in the confinement inner volume (21), wherein the third fluid may be the same as or different from and is physically separated from the first fluid (1), wherein at least one of the first, second fluid and third fluid is at most partly with the other two, but preferably immiscible, wherein the at least one reactant (5) and the reaction product (6) have a different affinity for at least two of the first, second (2) and third fluid, wherein at least one of the first (1) and third fluid (3) contain a fourth phase (4) which is a solid or semi solid and is selected from the group of materials capable of promoting the conversion of the at least one reactant into the reaction product.

A system that separates the wellhead fluid into four streams consisting of water, crude, residue gas and an NGL injectant fluid stream. The natural gas liquids injectant fluid stream has characteristics that are desirable for enhanced oil recovery namely, unfractionated natural gas liquids mix with high concentration of methane and ethane while still remaining at liquid phase when leaving the system.

A flotation apparatus for separating oil from a dispersion containing water as a continuous phase and oil as a dispersed phase. The apparatus comprises a vessel having one or more longitudinal cell sections in its longitudinal direction, at least one of the one or more longitudinal cell sections comprising: an underflow weir, an overflow weir displaced downstream from the underflow weir, a gas injection structure located below the underflow weir or in the channel formed between the underflow weir and the overflow weir, a removal structure for removing a fraction formed during the operation of the flotation apparatus on the liquid level from the liquid level, and a hydraulic structure for hydraulically pushing the fraction formed during the operation of the flotation apparatus on the liquid level into the removal structure using a liquid stream, a liquid/gas stream and/or a gas stream that is ejected by the hydraulic structure.

A separator fluidly connected to a wellbore includes: a vessel defining an interior chamber; an inlet for delivering fluid produced from a wellbore into the vessel at a first pressure; an outlet through which gas is directed out of the vessel at a pressure substantially equal to the first pressure; at least one liquid/oil level sensor capable of detecting the level of liquid within the interior chamber of the vessel and the level of oil within the interior chamber; two electronically controlled valves in fluid communication with the vessel; and a controller connected to the at least one liquid/oil level sensor and the electronically controlled valves and programmed to, in response to a level of the liquid and a level of oil in the interior chamber of the vessel: open, close, or modulate the electronically controlled valves to regulate the combined flow liquid and oil out of the vessel.

A system and method for processing unconditioned syngas first removes solids and semi-volatile organic compounds (SVOC), then removes volatile organic compounds (VOC), and then removes at least one sulfur containing compound from the syngas. Additional processing may be performed depending on such factors as the source of syngas being processed, the products, byproducts and intermediate products desired to be formed, captured or recycled and environmental considerations.

The current application is related to a separating device for separating volatile compounds from a polymer reaction mixture comprising a gravimetric separator, having a gravimetric vessel, an inlet for feeding the polymer reaction mixture, a first outlet located in the lower part of the gravimetric vessel for withdrawing a first polymer-rich stream, and a second outlet located in the upper part of the gravimetric vessel for withdrawing a first polymer-lean stream; and a flash separator having a flash vessel, a first inlet for feeding a second polymer-lean stream split from the first polymer-lean stream, a first outlet located at the lower part of the flash vessel for withdrawing a liquid stream, and a second outlet located at the upper part of the flash vessel for withdrawing a gaseous stream, wherein the second outlet of the separator vessel is fluidly connected to the first inlet of the flash vessel. Furthermore, the present application is related to a A process for separating volatile compounds from a reaction mixture comprising a polymer and said volatile compounds, comprising the steps of passing the reaction mixture through the inlet into the gravimetric vessel of the gravimetric separator of a separating device according to the present invention, withdrawing a first polymer-rich stream comprising mainly polymer through the first outlet of the gravimetric vessel, withdrawing a first polymer-lean stream comprising mainly volatile compounds through the second outlet of the gravimetric vessel, passing at least a part of the polymer-lean stream as a second polymer-lean stream through the first inlet into the flash vessel of the flash separator of the separating device according to the present invention, withdrawing a liquid stream through the first outlet of the flash vessel, and withdrawing a gaseous stream through the second outlet of the flash vessel.

Provide is a phase separator having a phase separation function and a function of promoting mutual contact between the first liquid and the second liquid in a compact structure. The phase separator includes a main body container, a partition member, and a mixed-liquid introduction part. The body container defines a storage space for the mixed liquid. The partition member partitions the storage space into a plurality of horizontally arranged spaces including a mutual contact space allowing the first and second liquids to flow vertically while being in contact with each other, and a phase separation space for separating the mixed liquid into a first liquid phase and a second liquid phase. The mixed-liquid introduction part allows introduction of the mixed liquid through the mixed-liquid introduction part to make the mixed liquid flow from the introduction end toward the discharge end of the partition member through the mutual contact space.

A system and method for processing unconditioned syngas first removes solids and semi-volatile organic compounds (SVOC), then removes volatile organic compounds (VOC), and then removes at least one sulfur containing compound from the syngas. Additional processing may be performed depending on such factors as the source of syngas being processed, the products, byproducts and intermediate products desired to be formed, captured or recycled and environmental considerations.