摘要:
A system for desalting a crude oil stream includes vessel that has an interior piping structure that releases wash water into a crude oil flow within the vessel. The piping structure, which may have more than one level, has a plurality of spray nozzles for dispersing or releasing the wash water into the flowing crude oil stream. The spray nozzles may be located on a same side or opposite sides of the piping structure. Where multiple levels are used, the number of spray nozzles on each level may be the same as or different than the number of spray nozzles on other levels. The pressure drop through each spray nozzle is no greater than 300 psi and the nozzles deliver a dilution water droplet no larger than 300 microns in diameter. A mixing valve, static mixer, or both can be placed downstream of the vessel.
摘要:
A material distributing and mixing apparatus. A conduit having a fluid inlet and fluid outlet houses a mixing element The mixing element includes rectangular segments forming forward facing V-sections and rearward facing V-sections. The forward facing V-sections form vertical apexes that face an incoming fluid stream while additive inlet ports are positioned proximate thereto. The forward facing V-sections are positioned proximate to the top and bottom surfaces of the conduit while the rearward facing V-sections form apexes which are substantially horizontal, the rearward facing V-sections being positioned proximate the vertically extending side walls of the conduit.
摘要:
A multi-lumen mixing device is described. The multi-lumen mixing device includes a mixer body having an inlet portion and an outlet portion. The multi-lumen mixing device also includes an array of capillary channels within the mixer body, in which each capillary channel has approximately a same length. An inlet for each of the capillaries is proximate to the inlet portion and an outlet for each of the capillaries is proximate to the outlet portion. The array of capillary channels has at least three different cross-sectional areas.
摘要:
A system for desalting a crude oil stream includes vessel that has an interior piping structure that releases wash water into a crude oil flow within the vessel. The piping structure, which may have more than one level, has a plurality of spray nozzles for dispersing or releasing the wash water into the flowing crude oil stream. The spray nozzles may be located on a same side or opposite sides of the piping structure. Where multiple levels are used, the number of spray nozzles on each level may be the same as or different than the number of spray nozzles on other levels. The pressure drop through each spray nozzle is preferably no greater than 300 psi and the nozzles preferably deliver a dilution water droplet preferably no larger than 300 microns in diameter. A mixing valve, static mixer, or both can be placed downstream of the vessel.
摘要:
A mixing assembly for use in a semi-continuous process for producing liquid personal care compositions, such as shampoos, includes a main feed tube carrying a base of the composition to be produced, a plurality of injection tubes in selective fluid communication with the main feed tube, and an orifice provided in a wall at an end of the main feed tube downstream of the plurality of injection tubes. The wall in which the orifice is provided includes a curved (e.g., semispherical) entry surface on an upstream or inlet side of an orifice, and a curved (e.g., semi-elliptical) exit surface on a downstream or outlet side of the orifice. The orifice may have a rectangular or elliptical shape. By maintaining symmetry of the injection tubes with respect to the orifice, and leveraging delay between introduction of dosed modules and increased viscosity, effective mixing may be achieved with minimal energy.
摘要:
A device for dispensing individual components of a two-component adhesive includes first and second manifold members, each having a distribution chamber therein. A set of conveying tubes is supported within the dispensing device and collectively present a predetermined total cross-sectional flow area to the first distribution chamber. The second manifold member has an array of passages therethrough. Each tube extends substantially concentrically through a respective passage to define annular flow spaces that collectively present a predetermined total cross-sectional flow area to the second distribution chamber member. First and second components emanating from the tubes and the flow spaces are able to intermix with and diffuse into each other on the discharge area of the second manifold member. The cross-sectional flow areas presented to the first and second distribution chambers are equal.
摘要:
In the production of phthalic anhydride by the oxidation of ortho-xylene with air, the ortho-xylene loading is increased without increasing the likelihood of explosion by insulating the system to avoid cold spots to keep the ortho-xylene at a temperature above its dew point; in addition the system may be electrically interconnected and grounded to reduce the risk of spark initiated explosions or deflagrations.
摘要:
A method for adjusting a concentration of an acid or lye includes charging a medium for adjusting the concentration of the acid or lye into a supply conduit of the acid or lye so as to provide a combined stream. The combined stream is supplied through an inlet to a mixing chamber such that the combined stream is deflected upon entering the mixing chamber. The combined stream is mixed in the mixing chamber. The combined stream is discharged through an outlet of the mixing chamber such that the combined stream is again deflected upon being discharged from the mixing chamber.
摘要:
An apparatus and method for combining multiple materials. The multiple materials may include both a major material and one or more minor materials. The major and minor materials are added at transient or steady state flow rates, depending upon a command from a control signal. The actual flow rates track the commanded flow rates, but deviate by an error. The claimed arrangement provides an instantaneous and time-based error believed to be unobtainable in the prior art.
摘要:
A hydrocarbon-containing gas is mixed with an oxygen-containing gas in a gas mixer in the presence of a water mist. The water mist surrounds and contacts entrained particles in either the oxygen-containing gas stream or the hydrocarbon-containing gas stream. The water acts to suppress and prevent ignition of the hydrocarbon gas in the mixer by serving as a sink for heat created by energetic collisions between such particles and structures within the gas mixer. The water mist also acts to quench ignition caused by such collisions. The water mist can be introduced into the gas mixer in a number of different configurations, including via nozzles injecting a mist into a hydrocarbon gas manifold or an oxygen gas manifold, nozzles placed within the gas mixer adjacent to ends of the oxygen supply pipes, and nozzles placed coaxially within the oxygen supply pipes in the gas mixer.