Described are direct flame impingement shields for fire tubes in heater treaters which reduce corrosion of the fire tubes. The direct flame impingement shield is removable and replaceable. The direct flame impingement shield may be formed from a variety of types of stainless steel or other corrosion resistant material.

Disclosed is a liquid-liquid-solid three-phase separator for waste oil, including an oil-bath heating tank, a plurality of cyclone units and solid removal units. The cyclone units are provided and fixed in the oil-bath heating tank. Each of the solid removal units is connected to an underflow pipe of each of the cyclone units and is configured to separate solid particles. A solid removal outer pipe is arranged at a tail end of the underflow pipe via the first connector; the second connector is arranged at a tail end of the solid removal outer pipe; the solid removal inner pipe is arranged at an underflow outlet of the underflow pipe via the second connector to form a solid removal gap. The invention provides the demulsification and dehydration treatment of waste oil emulsion and the separation of solid particles.

A system for recovering fat, oil and grease and removing biochemical oxygen demand and total suspended solids from brown grease or trap grease. In some cases, the system includes an integrated inlet coarse screen, primary circular zoned dissolved air and ozone flotation unit, bio-dissolved air and flotation unit, and three-phase centrifuge.

A separation system includes an elongated separator vessel having an inlet, a heating section which is located downstream of the inlet, an oil accumulation section which is located downstream of the heating section, and an oil outlet which is connected to the oil accumulation section. The heating section includes an immersed plate heater which is fluidly connected to a heating medium heater that is located externally of the separator vessel. In operation, a heating fluid which is heated in the heating medium heater is circulated through the immersed plate heater to heat the multiphase fluid.

Systems and methods for treating a rag layer in a gas oil separation plant. The method includes withdrawing the rag layer from a vessel proximate an oil water interface, conveying the rag layer to a separation device, and recycling separated oil from the separation device back to the gas oil separation plant process.

A method of recovering an extraction aid from distillers corn oil, by directing stillage containing distillers oil and an extraction aid to a centrifugal separator, recovering a light phase from the centrifugal separator, the light phase containing at least a portion of the distillers oil and at least a portion of the extraction aid, cooling the light phase and causing a precipitate to form, and recovering a precipitate from the cooled light phase containing at least a portion of the extraction aid. A method of recovering distillers oil.

This is a system for filtering liquids and particulates from hydrocarbons. The system starts with an intake where hydrocarbons from a source are placed into an oil circuit within the hydrocarbon filtering apparatus. The hydrocarbon that is passed through the elements of the hydrocarbon filtering apparatus has liquid, such as water removed, as well as particulates. The process is an improvement on existing machines and that the apparatus is able to run at an decreased temperature and reduced pressure as compared to the current state of the art. An improved diffuser element is made using a central tube that has a multiplicity of apertures interspersed along the shaft of the tube. The central tube has an attachment end and a closed end opposite from the attachment end. The tube is wrapped with a metal mesh and the mesh clamped in place.

A process and system to extract essential oil from a material is described. The process includes expressing the essential oil into water to form a fluid mixture that contains essential oil, an essential oil-water emulsion, and water; heating the fluid mixture to destabilize the essential oil-water emulsion and separating the heated fluid mixture into a waste mixture and a product fluid mixture, where the concentration of essential oil in the product fluid mixture is greater than the concentration of essential oil in the fluid mixture.

An electronically controlled burner management system for oilfield separators. The system includes an autonomous standing pilot spark ignition that includes a self-aligning clamp that holds the igniter to the burner nozzle. The self-aligning clamp enables rapid installation and removal, lowering the total cost of ownership. The autonomous spark ignition system incorporates temperature sensors to determine when the standing pilot needs to be relit, and can shut off the gas or other fuel flow to the standing pilot and the main burner when the pilot is not lit. The system increases oil and gas production from the well, reduces fugitive emissions of unburned gas, and improves oilfield worker safety. When installed or retrofitted into an existing oilfield separator, the original burner control components are left in place, allowing the user to revert to traditional operation in case of failure of any electronic component of the present system.

An elongate, horizontally level, pipe includes a circumferential wall. The pipe flows, within the circumferential wall, process fluid that includes a first fluid and a second fluid immiscible with the first fluid. The first fluid and the second fluid are separated by an interfacial layer. Heating coils are disposed within the pipe. Each heating coil passes through an interior region of the pipe between the circumferential wall at a respective height from a bottom of the pipe. The heating coils generate heat. A controller is connected to the heating coils. The controller triggers at least one of the heating coils that is nearest to a location of the interfacial layer within the interior region to apply heat to the interfacial layer. The heat is sufficient to at least partially demulsify the interfacial layer.