19 results about "Oil refinery" patented technology

When using spectroscopic diode lidar to detect a gas of interest such as methane (CH4), detecting high concentration pathlength (CPL) values of the gas of interest may not actually indicate a plume or leak. In areas such as a refinery, where ambient gas levels may be routinely high, absorption from ambient gas measured over a long pathlength may produce the same CPL value as a much closer gas leak, leading to a false positive. By collecting and using lidar distance information in tandem with the CPL values determined from the lidar system spectroscopic measurements, the statistical properties of the dataset can be evaluated, and ambient concentrations of the gas estimated. A lidar dataset with revised values of CPL that adjusts for these measurements of ambient concentration may be created to provide better reliability for analysis and in for triggering alarms for potentially dangerous gas concentrations and leaks.

The present disclosure relates to ionic copolymers and terpolymers derived from monomers such as 1-alkyl-3-vinylimidazolium halides, 1-vinylimidazole, acrylamide, n-vinylpyrrolidone, and poly(ethylene glycol) methyl ether methacrylate, and their use as corrosion inhibitors in process streams in industrial systems, more specifically in oil refinery streams. The corrosion inhibitors function at concentrations below 100 ppm, temperatures up to 60° C., and in the presence of congenital waters or synthetic brines.

A system for refining crude oil to minimize emissions of toxic compounds in the atmosphere during refining. The crude oil is treated with viscosity-reductant additives, reducing viscosity by up to 50% and increasing API gravity by more than 2 points. The method of spray-cracking and vacuum-flashing of crude oil, the system separates light and heavy end chains within the reactor. The vapor is condensed into designer fuels using a multi-stage horizontal reverse condensate-condenser or closed-loop distillation tower. Process heater directs flue gases through high-salinity fluids, such as a brine-processing device to capture, sequester, or mineralize the CO2, CO, NOx, and other contaminants from the flue gases. This results in a significant reduction in emissions, a further reduction to near-zero emissions (>95-98%) is achieved by the combination of (1) the closed loop processes, tank blanketing and capturing, sequestering and mineralizing emitted flue gases from the heater combustion-exhaust.

This utility model discloses a high-safety steam utilization device for oil refineries, belonging to the technical field of steam utilization devices. It includes a steam recovery cylinder and a cooling pipe. An oil inlet pipe and an oil outlet pipe are respectively connected to both sides of the side wall of the steam recovery cylinder, and both are connected to the cooling pipe. An exhaust pipe is connected to the side wall of the steam recovery cylinder, and an installation pipe is connected to the end of the exhaust pipe. A sealing pipe is fixedly installed inside the lower part of the installation pipe. The top surface of the sealing pipe is arc-shaped, and the outer wall of the sealing pipe is sealed to the inner wall of the installation pipe. A horizontal plate is fixedly installed horizontally inside the upper part of the installation pipe. A push spring is fixedly installed at the bottom of the horizontal plate, and a sealing valve is fixedly installed at the bottom of the push spring. The bottom of the sealing valve matches the top surface of the sealing pipe. Compared with the prior art, this device can automatically release excessive pressure inside the steam recovery cylinder, while further improving the utilization effect of excess steam.

The present invention relates to a tyre comprising a rubber composition based on at least: - an elastomer matrix comprising a styrene-butadiene copolymer and natural rubber; - a reinforcing filler comprising silica; - a vulcanisation system; and - a plasticising system comprising a hydrocarbon resin, wherein this resin is based on a cyclic monomer selected from the group consisting of a distillation cut derived from an oil refinery stream, C4, C5 and C6 cyclic olefins and mixtures thereof, and wherein the hydrocarbon resin has an aromatic proton content (H Ar, expressed in mol%), a glass-transition temperature (Tg, expressed in °C) and a number average molecular weight (Mn, expressed in g / mol) such that (1) H Ar > 6 mol%, (2) Tg ≥ 95 - 2.2 * (H Ar), (3) Tg ≥ -53 + (0.265 * Mn) and (4) 250 g / mol ≤ Mn ≤ 600 g / mol.

This invention discloses a wet oxidation catalyst for oil refinery alkali residue and its preparation method, relating to the field of catalysts. The catalyst preparation method involves dissolving activated carbon in a solution to form a mixture, stirring and reacting it under an oxygen atmosphere of 0.5 MPa–5 MPa and a temperature of 200°C–260°C, followed by filtration and drying to obtain the catalyst. During the wet oxidation reaction, the catalyst degrades organic matter and sulfur-containing compounds in the oil refinery alkali residue into CO2, H2O, and SO4 under high temperature and high pressure conditions. 2‑ This achieves the effect of reducing COD in wastewater. This application uses modified activated carbon as a wet oxidation catalyst for oil refinery alkali residue, which eliminates the problem of active component leaching. Furthermore, the active center of the catalyst is the functional group generated during oxidation, making it less prone to deactivation. The catalyst can be produced through a simple process, which is beneficial for expanding production and application.

1. Name of the product in this design: Process Pump. 2. Application of this design: This design is used in petrochemical industries, chemical industries, oil refineries, water supply plants, power plants, etc., for conveying pure liquids or liquids containing trace amounts of fine particles. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The present invention relates to a hydrocarbon compound mixture that is transparent in a layer of 40 mm thick at 20°C and has a cloud point of 15°C or less according to a relevant standard test method for measuring cloud point, obtained by a method of converting plastic waste into a liquid hydrocarbon compound mixture. The present invention further relates to a method of converting plastic waste into such a liquid hydrocarbon compound mixture and to the use of said hydrocarbon compound mixture as a feedstock for a crude oil refining unit or a steam cracker in an oil refinery.

A stable blend is provided of petroleum bottom distillation column (ATB) feedstock and 1 to 20% by weight of plastic based on the weight of the blend, wherein the plastic includes polyethylene and / or polypropylene, and the plastic in the blend includes finely dispersed microcrystalline particles having an average particle size of 10 to less than 100 microns. A method is also provided for preparing a stable blend of plastic and petroleum, comprising mixing the petroleum feedstock with the plastic containing polyethylene and / or polypropylene, and heating the mixture to a temperature above the melting point of the plastic but below 500°F. The liquid blend of the plastic molten material and the petroleum feedstock is then cooled to a temperature below the melting point of the plastic while mixing.

A process for producing hydrocarbons having biogenic carbon content and a sweetened gas stream is provided. In the process a refinery feed having biogenic carbon content, non- biogenic carbon content and sulphur content is refined in a conversion unit to obtain a conversion effluent, wherefrom at least a gaseous stream and optionally an unstabilised naphtha stream comprising H2S and at least one or more of carbon oxide(s) and / or C1-C3 hydrocarbons, and a degassed hydrocarbon stream are separated. The separated gaseous stream is subjected to a sweetening treatment, and optionally at least one or more distillate(s) and a separation bottom are further separated from the degassed hydrocarbon stream. The process further comprises collecting as a sample an aliquot of the gaseous stream or an aliquot of the unstabilised naphtha stream, subjecting the sample to combustion to obtain an exhaust gas sample containing CO2, sulphur oxide(s) (SOx) and H2O, subjecting the exhaust gas sample, preferably as dehydrated, to a SOx removal treatment, and subjecting at least a portion of the SOx depleted gas sample to a biogenic carbon content determination. The present process provides a convenient and safe way to conduct the mass balancing, and biogenic carbon content determination in an output stream, for individual conversion units of a refinery, as required e.g. for an ISCC PLUS certification.

This invention provides a method for preparing a removal agent having a good basic nitrogen removal effect, and its applications. [Solution] The present invention discloses a method for preparing a basic nitrogen removal agent for chemical waste oil from an oil refinery and its application. The removal agent is obtained by mixing coal hydrotreatment residue and spent FCC catalyst in a mass ratio of 1-9:1-10 and performing hydrothermal treatment. The present invention also discloses that the removal agent prepared by recovering and reusing discarded silica-alumina composite residue has the advantages of low cost, high adsorption capacity, and good adsorption effect. Furthermore, it also discloses that the removal agent can be modified using heteropoly acids and / or metal salts to further improve the adsorption amount and adsorption rate of the removal agent for basic nitrogen.

The present application relates to sewage treatment technical field, disclose a kind of oil refining stripping purification water sewage resource utilization method, the method comprises the following steps: refinery sulfur-containing ammonia-containing acidic water is divided into high phenolic acidic water and low phenolic acidic water according to the concentration of volatile phenol contained;The high phenolic acidic water is treated by first stripping, and high phenolic stripping purification water is obtained;The low phenolic acidic water is treated by second stripping, and low phenolic stripping purification water is obtained;The high phenolic stripping purification water and low phenolic stripping purification water are respectively reused.The present application adopts high phenolic stripping purification water and low phenolic stripping purification water stripping purification water source head quality collection and double-tower device quality processing, realizes the quality direct reuse mode of high water high use low water low use, system improves the stripping purification water sewage resource utilization efficiency of refinery, realizes the maximum utilization of refinery stripping purification water sewage resource.

The utility model relates to oil refining construction equipment technical field discloses a kind of head-mounted equipment for the safe construction of oil refining device, including protective cover, the inside of the protective cover is provided with buckle assembly, the outer wall of the buckle assembly is fixedly connected with support, the outer wall of the support is provided with clamping strip, the left side inside of the clamping strip is opened with first clamping hole, the left side inside of the clamping strip is opened with second clamping hole, the left side inside of the clamping strip is opened with third clamping hole, the outer wall of the support is fixedly connected with soft pad.In the utility model, push push block to drive clamping post to slide, then clamping post drives spring to contract, by pulling out support to drive clamping plate to leave clamping groove, so that protective cover and support are separated, the size of support and clamping strip is adjusted using first clamping hole, second clamping hole, third clamping hole, so that the effect of quick disassembly and replacement protective cover can be achieved, it is convenient for construction personnel to clean protective cover, improve the comfort of construction personnel.

The utility model relates to a cold shrinkage type climbing increasing umbrella, insulating porcelain bottle and disconnecting switch, wherein the cold shrinkage type climbing increasing umbrella comprises: a climbing increasing umbrella, which comprises an umbrella skirt main body; a supporting body, which comprises a silk tube formed by winding a single fine wire according to a preset thread shape; the silk tube is attached to the inner wall of the umbrella skirt main body; the end of the silk tube is reserved with a silk head; wherein, in the expanded state of the climbing increasing umbrella, the umbrella skirt main body is sleeved on the supporting body, and the climbing increasing umbrella is supported and opened by the supporting body; the silk head is pulled to separate the fine wire, the supporting body is disassembled, and the climbing increasing umbrella is contracted. The utility model effectively increases the creepage distance of the insulator porcelain bottle, can further improve the insulating level of the porcelain bottle, and has no open fire and high-temperature heat source in the whole installation process, completely avoids the fire risk, and makes the climbing increasing umbrella safe in construction in the explosion-proof places such as the transformer substation and the oil refinery.

This invention provides a separation and purification system and method for coal-to-hydrogen conversion gas, belonging to the field of low-carbon energy and environmental protection technology. The system includes a decarbonization tower, a purification tower, a compressor, a cooler, a desulfurization tower, a gas-liquid separator, a slurry pump, a filter, a filtrate pump, a dehydration tower, a distillation tower, a condenser, a reboiler, a pretreatment unit, and a membrane separator. This invention utilizes adsorption, catalysis, distillation, and membrane separation technologies to perform decarbonization, desulfurization, dehydration, separation, and purification, producing hydrogen, industrial-grade carbon dioxide, and sulfur that meet the standards of refinery hydrogenation processes. This improves the recovery rate of hydrogen and carbon dioxide, reduces greenhouse gas emissions, and enhances overall resource utilization efficiency, resulting in significant economic, environmental, and social benefits.

Disclosed are internal corrosion inhibitors for crude oil refining processes, where the water content is associated with different concentrations of inorganic salts and where there is evidence of the presence of dissolved H2S and / or CO2. The corrosion inhibitors mitigate corrosion in refinery environments due to the chemical structure of the components derived from amino acids and benzaldehydes, with characteristics that tolerate corrosive environments. The products comprise two or more members of these inhibitors along with a solvent. Their action is to reduce the corrosion of metal surfaces inside refineries that process crude oil with water containing dissolved ionic species, capable of damaging metal structures. The combination of two or more different components produces a synergistic effect, which is attributed to interactions with the metal surface, each other, or with the corrosive medium, depending on the length of the molecular chain. This allows corrosion inhibition with a reduced formulation dose.

FIELD: gas combustion burners.SUBSTANCE: burners in which gaseous fuel is mixed with air before the combustion zone, used in the oil, chemical, petrochemical and other industries where high-temperature heating of hydrocarbon raw materials is required, or a high-temperature chemical reaction is carried out due to the heat released during the combustion of natural and oil refinery gases. A gas burner with incomplete preliminary mixing of gas and air, comprising a gas supply pipe connected by means of a flange joint to a gas chamber, a primary air mixing unit located inside the burner, having a space for the injection process and channels for supplying primary air, characterized in that the primary air mixing unit is a tightly fitting rim with rectangular openings located at an equal distance from each other outside the burner around the mixing unit, with a primary air supply regulator fixed on top of the rim, inside which, in a circle at an equal distance from each other, eight blades for mixing the primary air and gas are located, fixed on the inner rim; the blades are attached by means of a hook-and-eye connection to the surface of the adjustment rim and are connected to an adjustment mechanism consisting of an L-shaped plate located outside and fixed to a fixed support flange; a flame arrester is installed inside the burner, consisting of ribbed plates fixed on top of a hollow sleeve mounted on a flame gap regulator, which is a tube located in the center and passing inside through the entire surface of the burner, fixed on one side, and at the outlet of the burner connected to a disk distributor with an angle of inclination of 70°, on the outside of the burner there is a secondary air regulator, which is a metal rim located around the burner with protrusions for fixation, inside there are twenty-four blades located at an equal distance from each other, in the upper part of the secondary air regulator there is an opening for the passage of the gas supply pipe to the pilot burner through it, at the outlet of the gas supply pipe to the pilot burner there is a flame stabilizer installed.EFFECT: operational safety and improved gas-air mixing.4 cl, 7 dwg

The present invention relates to a method for internal inspection of storage tanks containing a large volume of residual product and having a very short maintenance window, being applicable mainly in the inspection and maintenance activity of fixed-roof and floating-roof storage tanks, by any refinery or process plant that has a tank storage area (for example, refineries, terminals and petrochemical plants). The aforementioned method comprises installing a stainless-steel cylinder (1) within the storage tank to delimit a confined area inside the equipment, said area being cleaned and decontaminated so that it may subsequently undergo non-destructive thickness measurement and magnetic particle testing to determine the thickness of the bottom plates and to detect possible cracks in the weld seams of the bottom plates.

Apparatus, means and methods of converting existing refineries and hydrocarbon processing facilities to ecologically friendly refineries (“eco-refinery”) are disclosed that employ heat and stored thermal energy for their internal processes to enable the overall operation of the facilities under improved environmental and carbon-neutral conditions. Also disclosed are the use of liquid organic hydrocarbon carriers (LOHC) to generate heat, hydrogen, and electricity under carbon-neutral conditions to power partially or wholly converted refineries and eco-refineries to enable the efficient use of clean energy sources and prevent the release of carbon dioxide to the environment. Also disclosed is a novel ecosystem for replacing traditional hydrocarbon fuels with LOHC materials for use internally within carbon-neutral refineries and also tailorable as alternative recyclable fuels to power mobile transportation systems and stationary facilities to enable their operation under overall carbon-neutral conditions with respect to the environment. Also disclosed is the use of eco-refineries to function as large-scale thermal energy storage systems and as liquid chemical batteries employing LOHC materials to store energy in the form of available heat and labile hydrogen when importing excess electrical energy from the grid and using stored thermal energy to generate and export needed electrical energy to the grid when deficit.