Abstract:
Embodiments of the present application provide a hydrogen transportation pipe and a hydrogen transportation pipeline. A steel pipe body of the hydrogen transportation pipe has a pipe cavity with a round cross section; an inner wall of the pipe cavity of the steel pipe body is provided with a nano-composite coating used for preventing hydrogen atoms from diffusing into the steel pipe body; and an outer diameter of the steel pipe body is not more than 100 millimeters and a diameter of the pipe cavity of the steel pipe body is not more than 90 millimeters. According to the present application, a hydrogen embrittlement phenomenon can be prevented from occurring in the steel pipe body, and the transportation cost of hydrogen can be effectively reduced and the large-scale commercial application of the hydrogen energy can be further accelerated.
Abstract:
A ceramic-backed elbow featuring an extended chamber which alters the flow of fluent through the elbow section. This chamber is lined with a ceramic material and ceramic tiles. The remainder of the elbow is similarly coated with a ceramic mixture. The elbow could be placed into a coating pan upon the tiles being adhered to the elbow, and the entire elbow may be coated with an abrasive-resistant coating. A thin metal skin may then be applied over the entire surface of the coating.
Abstract:
An exhaust pipe includes a metal base material and a surface coating layer formed on a surface of the metal base material. The surface coating layer contains an inorganic glass base material and has a concave portion and a convex portion on a surface of the surface coating layer. The concave portion is lower than a first reference surface. The first reference surface has an average height of the surface of the surface coating layer. The convex portion is located on a peripheral edge portion of the concave portion and surrounds the concave portion. The convex portion is higher than the first reference surface.
Abstract:
A method to improve corrosion, abrasion, and fire resistant properties of structural components for use in oil, gas, exploration, refining and petrochemical applications is provided. The structural component is suitable for as refinery and/or petrochemical process equipment and piping, include but are not limited to process vessels, transfer lines and process pipes, heat exchangers, cyclones, and distillation columns. The method comprises providing the structural component with a plurality of layers, a corrosion resistant layer in contact with the corrosive petroleum products comprising a material selected from amorphous metals, ceramic materials, or combinations thereof; a structural layer; and an outer layer comprising a fire resistive material. In one embodiment, the structural component is further provided with at least another layer selected from a metal sheeting layer, an adhesive layer, and a containment layer. The structural component is characterized as having excellent corrosion/abrasion/erosion properties and fire-resistant properties.
Abstract:
Processes and devices useful in the application of coatings (14) to the interior of tubes (10) are described. Such processes (40, 400) may include applying a layer (20) of coating fluid (18) to the internal surface (16) of the tube (10) and passing a smoothing member (22) through the tube (10) at a distance from the internal surface (16). The viscosity of the coating fluid (18) may be selected so that the layer (20) of coating fluid (18) has a thickness substantially equal to or in excess of a predetermined wet film thickness (Twf) correlated to a desired final thickness (Tf) of the coating (14). The distance between the smoothing member (22) and the internal surface (16) may substantially correspond to the predetermined wet film thickness (Twf). The smoothing member (22) may smooth the coating fluid (18) and remove coating fluid (18) in excess of the wet film thickness (Twf) from the internal surface (16).
Abstract:
In a method for making hydraulic tubing a low carbon steel tube suitable for use as hydraulic tubing is coated on its inside surface with zinc phosphate and the outside surface is electroplated. The resulting hydraulic tubing will resist rust on the inside and on the outside during storage.
Abstract:
A system for producing and transporting crude oil, comprising a well for producing the crude oil; a processing facility for processing the crude oil; and a pipeline traversing at least a portion of the distance between the well and the processing facility, wherein at least a portion of the pipeline travels through an atmosphere having a temperature less than 20° C., wherein the pipeline comprises a coating on an inner surface of the pipeline, and wherein the crude oil comprises a surfactant additive.
Abstract:
An exhaust pipe for an internal combustion engine includes a metal tube enclosing a passage through which an exhaust gas from the internal combustion engine passes, and a ceramic film covering the metal tube from the outside, the ceramic film containing no more than about 0.5 mass % of a metallic element which is dominantly present in a surface of the metal tube. The ceramic film is an SiON film containing about 30 mass % or less of O and about 10 mass % or more of N.
Abstract:
An exhaust pipe includes a base material, a surface coating layer, and an information display. The base material is made of a metal. The surface coating layer is provided on a surface of the base material. The surface coating layer includes an amorphous inorganic material. The information display includes a character portion and a background portion. At least one of the character portion and the background portion is located in the surface coating layer.
Abstract:
An exhaust pipe for an internal combustion engine includes a metal tube enclosing a passage through which an exhaust gas from an internal combustion engine passes, and a ceramic film covering the metal tube from the outside. The ceramic film contains no more than about 0.5 atomic % of a metallic element which is dominantly present in a surface of the metal tube.