3395 results about "Petrochemical" patented technology

The present invention relates to methods for separating and recovering ethane, propane and heavier components from a feed gas, e.g. raw natural gas or a refinery or petroleum plant gas stream or a petrochemical plant gas stream. These methods employ a common new concept which is the use of the turbo-expander shaft compressor to generate the reflux requirement for the cryogenic absorber or distillation columns. The power of the turbo-expander which is absorbed by the shaft compressor is always high enough so that reflux generation by a specific gas compression through the expander shaft compressor and subsequent cooling, condensation and sub-cooling can always be easily maintained. The present invention allows for higher cryogenic absorber pressure and a lower demethanizer/de-ethanizer column pressure thus eliminating the common cryogenic pump at absorber bottom. The present invention ultimately results in a lower residue compression and utilities consumption. The present invention as such allows for a higher 99+% recovery of NGL from the feed gas stream.

A metallic material of the invention which comprises, in mass %, C: not more than 0.2%, Si: 0.01-4%, Mn: 0.05-2%, P: not more than 0.04%, S: not more than 0.015%, Cr: 10-35%, Ni: 30-78%, Al: not less than 0.005% but less than 4.5%, N: 0.005-0.2%, and one or both of Cu: 0.015-3% and Co: 0.015-3%, with the balance substantially being Fe, and of which the value of 40Si+Ni+5Al+40N+10 (Cu+Co), wherein the symbols of elements represent the contents of the respective elements, is not less than 50 and has excellent corrosion resistance in an environment in which metal dusting is ready to occur and, therefore, can be utilized as or in heating furnace pipes, piping systems, heat exchanger pipes and so forth to be used in a petroleum refinery or in petrochemical plants, and can markedly improve the equipment durability and safety.

Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogenous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed.

Lignin polymers having distinctive properties, including a generally high molecular weight and generally homogeneous size distribution, as well as preservation of native reactive side groups, are isolated by solvent extraction of plant materials. Methods for isolation of lignin polymers, and for use of the isolated lignin polymers are disclosed. Compositions containing lignin isolated from plant materials, such as carbon fiber composites, resins, adhesive binders and coatings, polyurethane-based foams, rubbers and elastomers, plastics, films, paints, nutritional supplements, food and beverage additives are disclosed. Xylose and xylose derivatives, furfural, fermentable sugars, cellulose and hemi-cellulose products may be used directly or further processed. The lignin polymers and other plant-derived products disclosed herein may be produced in abundance at low cost, and may be used as substitutes for feedstocks originating from fossil fuel or petrochemical sources in the manufacture of various products.

Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogenous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed.

The invention provides a novel silica aerogel material which is diaphanous, adiabatic, heat-retaining and noise-proof and a preparation method of the silica aerogel material. The silica aerogel material has the advantages of being high in tenacity strength, high in transparency, flawless, light in mass, low in density, especially big in block and the like. The silica aerogel material besides can be used in the field of energy saving buildings such as glass curtain walls, doors and windows which are heat-retaining, adiabatic and noise-proof, can be further used in the fields such as aerospace, petroleum and petrochemical, new energy resources, ships and refrigeration, and has good application prospect.

The invention discloses a method for answering questions in the petrochemical field based on a knowledge map, which comprises the following steps: constructing conceptual knowledge map and entity knowledge map; receiving the question input by user, segmenting the question, extracting entity, attribute, relation and restriction condition, abstracting the entity into concept, matching the question template and transforming it into structured query statement; query conceptual knowledge map and entity knowledge map, generate answers, match answers to answer sentences template, and transform them into natural language answers. The invention also discloses a petrochemical field question answering system based on knowledge map. The invention can store and express the knowledge in the petrochemical field in the form of knowledge map, establish the connection between the business requirement and the development and production data, provide convenience for the user to obtain the professional knowledge in the form of natural language interactive question answering, improve the user experience, and help to provide the work efficiency of the user.

Provided are high manganese containing ferrous based components and their use in oil, gas and/or petrochemical applications. In one form, the components include 5 to 40 wt % manganese, 0.01 to 3.0 wt % carbon and the balance iron. The components may optionally include one or more alloying elements chosen from chromium, nickel, cobalt, molybdenum, niobium, copper, titanium, vanadium, nitrogen, boron and combinations thereof.

A multifunctional methanol processing method belongs to the field of petrochemical and coal chemical technology. Methanol is used to produce low carbon olefins, gasoline and aromatics. The method adopts a two-step processing technique. The first step is to use methanol to produce low carbon olefins. The second step is to use low carbon olefins to synthesize aromatics and/or gasoline. The invention also provides a reactor and a regenerator used for the method. The method and the reactor and the regenerator can produce products with low carbon olefins, gasoline and aromatics which are urgently needed for economic construction, and have the advantages of flexible program, short process, low investment and high efficiency.

The invention provides mesoporous spherical alumina and a method for preparing the mesoporous spherical alumina by guiding of a template. By the adoption of an oil column forming method, the template with a guiding function is added into aluminum sol during the aluminum sol preparation process; and during the forming and aging processes of the aluminum sol, due to the existence of the template with the guiding function, a large number of meso-structures are prepared in alumina balls. The mesoporous spherical alumina has the following characteristics of: its specific surface is 150-300 m<2>/g; particle diameter is 0.1-5 mm; pore volume is 0.7-1.5 ml/g; holes, hole diameter of which is 2-40 nm, are greater than 97%; bulk density is 0.30-0.80g/cm<3>; and crushing strength is 70-250 N/granule. The mesoporous spherical alumina can be used as a catalyst or a catalyst carrier in the petrochemical industry and the industry of fine chemicals.

The present invention provides a hydrogenation method capable of converting cracked kerosene into the raw materials for petrochemical cracking having a high thermal decomposition yield by a hydrogenation reaction. The present invention is a petrochemical process for producing at least any of ethylene, propylene, butane, benzene or toluene by carrying out a thermal decomposition reaction at least using naphtha for the main raw material, wherein cracked kerosene produced from a thermal cracking furnace is hydrogenated using a Pd or Pt catalyst in a two-stage method consisting of a first stage (I), in which a hydrogenation reaction is carried out within the range of 50 to 180° C., and a second stage (II), in which a hydrogenation reaction is carried out within the range of 230 to 350° C., followed by re-supplying all or a portion of these hydrogenated hydrocarbons to a thermal cracking furnace.

The present invention is related with bioplasticizers or primary oleochemical plasticizers and the improved process for obtaining thereof. It refers primarily to epoxydized oleochemical plasticizers produced from vegetable oils, as substitute of traditional petrochemical plasticizers. The process starts with the epoxydized product of natural oils, such as sunflower, linseed, Jatropha curcas, soybean, etc., which are transesterified with an alcohol such as ethylic or methylic, in the presence of a catalyst such as sodium methoxide or sodium hydroxide in order to produce an alkylic esters mixture of the fatty acids that were present in the oil or oil mixture used as raw material in the epoxydized oil production. When the plasticizer obtained by the process already mentioned is used for the formulation of moldable poly(vinyl chloride), PVC, resins; the resulting plastic films get adequate hardness, static and dynamic thermal stability, and plasticizer extractability by solvents, such as n-hexane, gasoline and oil. Besides, when the PVC resin is formulated with a phthalic or terephthalic plasticizers mixture and the bioplasticizer, the bioplasticizer presents a full range solubility and or compatibility with the remainder of the resin compounds. The oxyrane chemical ring of the bioplasticizer is an excellent chemical neutralizer of the HCL that might be formed from the PVC, due to the action or interference of thermal or UV radiation.

A process for converting undesirable olefinic hydrocarbon streams to hydrogen and petrochemical feedstock e.g. light olefins in C2-C4 range and aromatics especially toluene and xylenes, which comprises simultaneous cracking and reforming at olefin rich hydrocarbons using a catalyst consisting of dehydrogenating metal components, shape selective zeolite components and large pore acidic components in different proportions in a circulating fluidized bed reactor-regenerator system having reactor temperature within 450-750 DEG C. and WHSV of 0.1-60 hour-1.

The invention relates to a microemulsion-type fracture acidizing cleanup additive, and a preparation method and application thereof, belonging to the technical field of petrochemical industry. The microemulsion-type fracture acidizing cleanup additive is prepared from the following components in percentage by weight:5-10% of surfactant, 2-8% of cosurfactant, 35-45% of oil phase, 35-45% of water phase and 3-10% of inorganic electrolyte. The microemulsion-type fracture acidizing cleanup additive provided by the invention has a function of restoring reservoir permeability; and compared with the existing cleanup additive system, the microemulsion-type fracture acidizing cleanup additive provided by the invention can reduce the degree of reservoir damage, which is caused by incompatibility of water locks, residues and formation fluids in the wellbore area of an oil well in the fracture acidizing process of an oil and gas well, by more than 50%.

The invention relates to the technical field of petrochemical engineering, in particular to a controlled releasing microcapsule for scale prevention, wax prevention or viscosity reduction of an oil well. The invention discloses a solid controlled releasing microcapsule for scale and corrosion prevention in the production process of crude oil and wax prevention or viscosity reduction in the production process of the crude oil as well as a preparation method thereof. Filler comprising an inorganic framework and agent components is arranged in a macromolecule composite membrane. The controlled releasing microcapsule has a stable structure comprising an inside inorganic framework support and an outer-layer macromolecular composite membrane wrapping film, can be used for realizing the slow release of the agent and achieving the aim of maintaining the agent effective for a long term as well as the functions of corrosion inhibition and dispersion. With proper volume and density, the controlled releasing microcapsule can be prevented from being taken away by an extraction solution and can be added through a sleeve; and the controlled releasing microcapsule is simple in process and is strong in maneuverability. According to the controlled releasing microcapsule, volatile matters and harmful components which do harm to the human health are avoided; various components can be basically and slowly dissolved; the labor intensity of workers is reduced; and one-time agent addition can ensure stable operation for 30-90 days.

The invention belongs to the technical field of chemical industry, and relates to a cooling water corrosion inhibitor, in particular to an efficient composite corrosion and scale inhibitor which can remarkably reduce corrosion and scaling phenomena of the cooling water of a petrochemical system. The corrosion and scale inhibitor is prepared by evenly mixing organic phosphine carboxylic acid corrosion inhibitor, organic multi-element phosphine acid corrosion and scale inhibitor, polymer scale inhibitor, metal ion succimer, surface active agent, zinc salt, functionality additive and water. The corrosion and scale inhibitor prepared from the components has low phosphine content and excellent corrosion and scale inhibition performance, can prolong the service life of devices, improve the repeated utilization rate of cooling water and reduce the water resource consumption.

The invention relates to warm mixed asphalt cement and a preparation method thereof. 100 percent of warm mixed asphalt cement comprises the following components in percentage by weight: 90.0-97.0 percent of asphalt cement, 2.0-8.0- percent of rheological modification agent and 0.5-5.0 percent of macromolecular polymer, wherein the rheological modification agent is formed by combining the following substances: (a) byproducts produced in a petroleum refining process, wherein the weight content of aromatics is 50-80 percent, and the kinematic viscosity at 100 DEG C is 20 mm<2>/s to 70 mm<2>/s; and (b) derivatives produced in petrochemical industry, coal chemical industry and forestry chemical industry; through the warm mixed asphalt cement, the high-temperature rutting resistance, low-temperature tensile strength and resistance to brittle fracture of the asphalt cement are improved while energy conservation and environmental protection are realized; the asphalt cement is mainly applied to construction and maintenance of various grades of highways and municipal roads, and is particularly suitable for cities, parks and tunnels with higher environmental protection requirements.

The invention relates to an environment-friendly epoxy intumescent fire-retardant coating and a preparing method thereof, and belongs to the field of functional coatings. The environment-friendly epoxy intumescent fire-retardant coating is prepared from a component A and a component B, wherein the component A uses epoxy resin as a main film forming matter and is added with a reactive diluent, a catalyst, a carbon-forming agent, a foaming agent, fire retardant, auxiliaries and solvent, and the component B is composed of a curing agent, a curing accelerator, pigment filler, auxiliaries, refractory fibers and solvent. In the component A, the ratio of the epoxy resin to the reactive diluent is 1:1-5:1. In the component B, the ratio of the curing agent to the curing accelerator is 1:1-5:1, and the usage quantity of the refractory fibers accounts for 5-50% of the total mass. The environment-friendly epoxy intumescent fire-retardant coating is free of alkylphenol, or halogen compounds, or boron compounds or sulfocompounds. The prepared environment-friendly epoxy intumescent fire-retardant coating is good in acid resistance, alkali resistance, water resistance, ageing resistance and salt mist resistance and is particularly suitable for fire-retardant protection for maritime and severe outdoor environments, the petrochemical industry and places with hydrocarbon fire potential hazards.

A management system for improving operation of a plant. A server is coupled to the management system for communicating with the plant via a communication network. A computer system has a web-based platform for receiving and sending plant data related to the operation of the plant over the network. A display device interactively displays the plant data. An optimization unit is configured for optimizing at least a portion of a refining or petrochemical process of the plant by acquiring the plant data from the plant on a recurring basis, analyzing the plant data for completeness, correcting the plant data for an error. The optimization unit corrects the plant data for a measurement issue and an overall mass balance closure, and generates a set of reconciled plant data based on the corrected plant data.

The invention relates to linear alkanes dehydrogenation catalyst carrier technics used in petrochemical industry. Its aperture distribution can be adjusted through producing macroporous alumina globule. Then add surface active agent in globule dropping process. Finally conduct hydrothermal treatment in supporter producing process. On base of self-research, globule dropping technics is designed by self to make product cost reduce remarkably. Using self produced macroporous alumina dropping globule, side pressure intensity of alumina globule can reach more than 20N per grain. Using self-researched macroporous gamma-Al2O3 with binocular construction, reaction performance of linear alkanes dehydrogenation catalyst can reach conversion>12-13 percent and selectivity>90 percent. Compared with international like products, its stability is better.

A recycling system has a pyrolysis apparatus (40) having a combustion section (42) for selectively combusting a carbon component in materials, and a gasification section (41) for pyrolyzing and gasifying the materials by using heat of combustion in the combustion section (42). The materials include residual oil from an atmospheric distillation unit (10), a vacuum distillation unit (20), and a decomposition unit (28), various wastes including waste plastics (181), wastes (182), and shredder dust (183), and organic matter such as biomass (184). The recycling system has a passage for supplying pyrolysates (120) produced in the gasification section (41) to an oil refinery system or a petrochemical system.

Disclosed is a circuit board fault infrared image automatic detection method. The image information of the working state of a circuit board is obtained by collecting a visible light image and an infrared image simultaneously. First, a visible light image and an infrared image of a circuit board working normally are collected and stored in a database. During detection of the circuit board which malfunctions, circuit board images (including a visible light image and an infrared image) taken are compared with the images under a normal state in the database, and a computer processes the images to find an area and a specific position where a component or line with abnormal temperature is located and automatically make a mark on the visible light image. Thus, automatic detection of a possible faulty component of the circuit board is completed. The technology can be applied to fields such as circuit board maintenance and equipment fault monitoring, and can also be applied to power equipment fault repair, petrochemical pipeline coke plugging, thermal insulation layer fall-off check, railway locomotive axle condition monitoring, fire prevention, flood control, disease prevention and other temperature change related non-contact measurement fields.

The invention relates to an energy-saving and emission-reducing technique for producing propane epoxide by using hydrogen peroxide epoxidation propylene, belonging to the field of petrochemical technology. The technique comprises a reaction part, a separation part and a tail gas treatment part, and is characterized in that propylene and hydrogen peroxide have an epoxidation reaction through a Ti-Si molecular sieve at medium pressure and low temperature; the propylene and solvent have higher recovery rate, the propane epoxide meeting the requirement of commercial-grade purity can be obtained by extractive distillation, and the joint product of propylene glycol monomethyl ether can be prepared by azeotropic distillation and purification; after part of tail gas is condensed and absorbed and the propylene is recovered, the tail gas reaches the standard and is discharged; extracting agent, absorbing agent and entrainer which are needed by the technique are in closed cycle in the process flow; and medium-pressure operation is adopted by a propylene tower to ensure water-cooling on the top of the tower, and thermal energy can be recovered by multiple-effect rectification and matching of streams. The technique has the effect and the advantage that the new energy-saving and environment-friendly technique for producing the propane epoxide can generate remarkable economic and social benefits.

A structural component for use in oil, gas, exploration, refining and petrochemical applications in the form of a pipe system is provided. The pipe system contains at least two pipe sections are that fusion bonded together, each pipe section comprises a plurality of layers, an inner layer in contact with the corrosive petroleum product comprising a thermoplastic material, a structural layer comprising a composite material, and an outer layer comprising a fire resistive material. In one embodiment, the pipe system meets level II fire endurance standard according to IMO A 18/Res.753 fire testing protocol.

The invention involves a bio-polyol prepared from epoxy rapeseed oil. The preparation method comprises: carrying out ring-opening reaction of epoxy rapeseed oil with an active hydrogen-bearing nucleophilic reagent at the presence of catalyst to obtain the mixed hydroxyl fatty acid triglyceride, and adding alcoholysis agent of alcohols or alkanolamine and heating for alcoholysis reaction to obtain mixed hydroxyl fatty acid monoester, i.e. biological-based polyol. The invention has the advantages of epoxy rapeseed oil being cheap and easy to get or self-design, reduction of dependence on petrochemical products, strong functions and high adjustability, and production of different functionality and pre-designed hydroxyl values of the bio-polyol according to requirements.

The invention discloses water-based elastic heat proofing, heat insulation and energy-saving coating. The coating comprises elastic emulsion, hollow micro-beads powder, far-infrared ray reflecting powder, titanium dioxide, filler, cellulose, anti-foaming agent, dispersing agent, pH conditioning agent, rheologic thickening agent and soft water. The invention also discloses a preparation method of the water-based elastic heat proofing, heat insulation and energy-saving coating. The water-based elastic heat proofing, heat insulation and energy-saving coating has the advantages that the coating can be coated on a variety of backing materials, and of heat insulation and heat preservation, fire prevention, water resistance, anti cracking and noise control, and the like. The coating is suitable for the coating of the exterior wall, the roof and the interior wall and the like, and is also suitable for decreasing the temperature and reducing the tricking water of the metal surface such as the petrochemical industrial storage tank pipeline and the like.

The invention relates to a multi-perception emergency training system for a petrochemical fire scenario, which mainly solves the problems of insufficient interaction and low scenario perceptibility in the prior art. The multi-perception emergency training system for the petrochemical fire scenario based on a B/S architecture comprises a 3D driving engine, a thermal flux sensor module, an equipment operation module, a basic knowledge database module, a scenario database module, a desktop deduction, examination and evaluation module, a server and a client computer. The system well solves the above problem, and can be used for multi-perception emergency training of petrochemical fire scenarios.

The invention discloses a method for smelting and extracting platinum metal from an alumina-supported petrochemical catalyst, and the method comprises the following steps: mixing the alumina-supported petrochemical catalyst with a trapping agent, a reductant and a slag forming agent and then smelting to trap the platinum metal from the alumina-supported petrochemical catalyst to obtain subsidiary product and alloy containing the platinum metal; using a sulfuric acid solution to dissolve the alloy containing the platinum metal to separate noble metal and base metal so as to obtain noble metal ore; and refining the noble metal ore to obtain the platinum metal product. The method disclosed by the invention has the characteristics that the process design does not produce wastewater, the wastewater treatment and filtration difficulty in a wet treatment process of the alumina-supported petrochemical catalyst are avoided, the recycling rate is higher than 98%, and the product purity is 99.95%.

A process for the regeneration of materials used in the guard beds preceding the reactors used in an olefin conversion process which converts olefinic refinery streams to higher boiling hydrocarbon products by polymerization (oligomerization) or alkylation of aromatics including benzene. Products of the process may include olefin oligomers and alkylaromatics in the gasoline boiling range as well as alkylaromatic petrochemicals such as cumene and ethylbenzene. The process is integrated with the olefin conversion process to ensure continuous operation of the olefin conversion without sending the feedstock containing the contaminant(s) to the reactor. The process uses reaction products from the olefin conversion process to regenerate the guard bed material and so is economically attractive since it does not require the use of separate purge, regeneration feed and separation systems. A plurality of guard beds is used, each containing a material which removes catalyst poisons. The guard beds are operated on a swing system in which one or more beds is kept on stream to remove the contaminant(s) while one or more of the remaining beds is being purged or regenerated. In this way, continuity of operation is assured. The regeneration medium is a product stream from the olefin conversion process.

Swage end-connector for high pressure reinforced flexible hose particularly suitable in the petrochemical and drilling industries for hoses. Two connectors are disclosed one for intermediate hose pressure burst ratings up to 12,500 psi and internal diameters up to 3½ inches and higher hose pressure burst ratings up to 18,750 psi and internal diameters up to 4 inches. Both embodiment connectors will withstand the rated burst pressure of the hose to which they are connected and will withstand a pump-off force that exceeds the burst pressure of the hose. That is, the hose will fail before the connector pops off the hose.