A process and a preparation plant prepares methacrolein from formaldehyde and propionaldehyde, in presence of water and a homogeneous catalyst based at least on an acid and a base. A reaction mixture is introduced into a methacrolein workup plant and separated in a first distillation column, into a first distillation mixture in a gas phase at the top and a second distillation mixture in a liquid phase at the bottom. The first distillation mixture is condensed and, in a first phase separator, the organic phase and the aqueous phase of the condensate are separated from one another. The aqueous phase is introduced into a second distillation column, that is not part of the methacrolein workup plant, and is separated into a third distillation mixture in a gas phase at the top and a fourth distillation mixture at the bottom. The third distillation mixture is introduced into the methacrolein workup plant.

A separation system for separating components of a flow of multi-phase fluid includes an elongate separator vessel oriented on an incline to define a lower inlet end having an inlet for receiving the fluid flow, a raised outlet end, and an inclined top inner surface extending from the inlet end to the outlet end. The system includes a lower weir plate positioned above the inlet end and an upper weir plate positioned below the outlet end having an upper edge defining a liquid level within the separator vessel, thereby allowing a lighter fluid component to flow over the upper edge into a upper section located forwardly of the upper weir plate. The system also includes a clear water pipe with a withdrawal opening positioned below the upper weir plate. The incline of the separator vessel is adjustable in accordance with the composition of the multi-phase fluid.

A conduit assembly for a separation device is described herein. The conduit assembly includes a first conduit segment, a second conduit segment, and a removable flow control insert or cartridge, which may be easily installed and uninstalled without removing other components of the conduit assembly from the separation device. The flow control insert may be installed within a top opening of the second conduit segment and includes a projection that extends into the conduit assembly and obstructs or restricts fluid flow at the juncture between the first and second conduit segments.

A separation device configured to separate light and heavy components of an effluent mixture. The separation device includes a separation tank, an inlet discharge, an outlet diffuser, and a baffle. The separation tank includes a tank reservoir for containing the effluent mixture during separation, with light components configured to migrate upwardly toward a static water line and heavy components configured to sink adjacent the bottom. The inlet discharge is located within the tank reservoir to supply effluent mixture to the separation tank. The outlet diffuser is spaced from the inlet discharge and located within the tank reservoir to receive a heavy component of the effluent mixture after separation. The baffle is located within the tank reservoir to separate the inlet discharge from the outlet diffuser. The baffle presents a baffle opening adjacent the static water line.

An apparatus for filtration has a feed of sludge, containing liquid, solids and gases fed into a tank, the tank containing at least one spinning separation filter comprising a filter cone set having a filter screen, and a barrier cone, arranged roughly in parallel, and defining a conical workspace between them, the conical workspace having a peripheral opening to the tank and a central opening communicating with the interiors of one or more hollow shafts supporting the barrier cone and the filter cone, the upper shaft supporting the barrier cone having an upper axial channel for the exit of gases, the lower shaft supporting the center of the filter cone having a lower axial channel for the exit of liquid or oil, motor means for producing rotation in said at least one spinning separation filter, and a filtrate liquid reservoir located underneath the filter cone for capturing the filtrate passing through the filter screen.

The present invention is a single oilfield treatment vessel for removing water, solids and gas from crude oil. The vessel functions to replace three separate normally used vessels: a gas separator, a free water knockout vessel and a heater treater. The present vessel functions more efficiently than the three vessels it replaces by virtue of its superior internals and efficiency based design. It pays for itself more quickly by increasing the quality and value of the effluent fluids and by reducing installation and operating costs.

A system an oil-water separation system including a vessel for receiving an oil-water mixture and passing a treated water having a lower concentration of oil than the oil-water mixture. The system further includes a first overflow baffle for directing the oil-water mixture fluid flow over the first overflow baffle, and a first underflow baffle positioned downstream along a fluid flow pathway of the first overflow baffle for directing the oil-water mixture fluid flow under the first underflow baffle, and a second overflow baffle positioned downstream along the fluid flow pathway of the first underflow baffle having a mesh with a plurality of perforations which directs fluid flow over the second overflow baffle and through the plurality of perforations. The second overflow baffle permits a water portion of the oil-water mixture to traverse through the mesh and an oil portion of the oil-water mixture to traverse over the mesh.

The present invention relates to a process for treating a feedstock containing tall oil, the process including separation of a light stream from the feedstock, followed by removal of a heavy fraction from the feedstock , in which process the separation of the light stream from the feedstock a fractionator is used and at least one product is collected from the light stream . The invention also relates to an apparatus for use in the process and use of a fractionator in dehydration of a feedstock containing tall oil.

A filter device for separating a liquid mixture, including a vessel with first filter element. The vessel comprises a flat vessel base surface and vessel mantle surface. , including a housing with a second filter element. The housing comprises flat housing base surface and housing mantle surface. The vessel mantle surface comprises re-entrant section forming recess. A mating side of the housing mantle surface is configured to fit into the recess, whereby the re-entrant section and the mating side are provided with connection means to fluidly connect the first filter element with the second filter element. The re-entrant section extends from the vessel base surface, and the vessel base surface and the housing base surface are parallel and level in the same plane when the mating side of the housing mantle surface is fitted into the recess formed by the re-entrant section.