Abstract: A method for characterizing and optimizing refinery feedstock blends according to their corrosivity is provided. Refinery feedstocks can be characterized based on any of: dissociation of acids in the crude, breakup of naphthenic acid molecular associations, mass changes of carbon steel samples, and/or dissociation of sulfur compounds in the feedstocks. The characterization is performed as a function of temperature via any of electrical resistivity measurement, vibrational spectroscopic analysis, voltammetry, electrochemical impedance spectroscopy, crystal microbalance measurements of weight changes, and combinations thereof. The method employs models and/or hardware to optimize the usage of refinery feedstocks in the blending and valuation of the feedstocks.

Abstract: The present invention provides a process for simultaneously extracting and upgrading a heavy hydrocarbon mixture, said process comprising: i) injecting supercritical or near-supercritical CO2 at a temperature of around the critical temperature and a pressure of from around the critical pressure into a heavy hydrocarbon deposit; and ii) removing a stream of CO2 from the deposit, which stream is charged with a hydrocarbon mixture having a lower average molecular weight than that of the heavy hydrocarbon deposit, wherein the removed CO2 is optionally recovered and either recycled for subsequent re-injection or injected for long-term sub-surface storage.

Abstract: The present invention provides a raw coke having such a structure that the graphitized product resulting from graphitization of the raw coke at a temperature of 2800° C. under an inactive gas atmosphere will have ratios of the crystallite size to the lattice constant of 360 or less in the (002) plane and 1500 or less in the (110) plane, as a raw coke providing active carbon produced by alkali-activating the raw coke, which is reduced in remaining alkali content and can simplify washing operation because washing liquid can easily pass through the activated carbon, or as a raw coke for the production of needle coke.

Abstract: Embodiments disclosed herein provide hydrocarbon additives and methods of making and using the same. The additives are suitable for use in conjunction with gasifiers, furnaces, or other high-temperature vessels. The additives may be part of an input stream to a reaction vessel of a hydrocarbon gasifier. The additives may include materials that at least partially reduce the infiltration of slag into the refractory material.

Abstract: Slurry hydrocracking a heavy hydrocarbon feed produces a HVGO stream and a pitch stream. At least a portion of the pitch stream is subjected to SDA to prepare a DAO stream low in metals. The DAO is blended with at least a portion of the HVGO stream to provide turbine or marine fuel with acceptable properties for combustion in gas turbines or for marine fuel grades.

Abstract: Solid acid nanoparticles are added to crude oil before initial distillation in order to increase the yield of light hydrocarbons obtained during initial distillation. According to one aspect, nanoparticles of a solid acid of a characteristic particle size are added to crude oil before initial distillation in order to increase the yield of light hydrocarbons obtained during initial distillation. According to another aspect, nanoparticles of a solid acid are added to crude oil in a characteristic concentration before initial distillation in order to increase the yield of light hydrocarbons obtained during initial distillation. According to another aspect, nanoparticles of two or more solid acids are mixed and added to crude oil before initial distillation in order to increase the yield of light hydrocarbons obtained during initial distillation.

Abstract: The present invention relates to a process for the removal of organic acids, particularly naphthenic acids, from crude oils and crude oil distillates by use of a supported basic ionic liquid in a mass ratio of crude oil and/or crude oil distillate and ionic liquid of from greater than 40:1, the basic ionic liquid comprises a basic anion selected from serinate, prolinate, histidinate, threoninate, valinate, asparaginate, taurinate and lysinate.

Abstract: A hydrocarbon composition is described herein. The hydrocarbon composition has a relatively low viscosity and a relatively low oxygen content while having a relatively high vanadium, nickel, and iron metals content, and a relatively high distillate, residue, and micro-carbon residue content.

Abstract: The present invention is directed to a crude product composition. The crude product composition has, per gram of crude product: at least 0.001 grams of hydrocarbons with a boiling range distribution of at most 204° C. at 0.101 MPa, at least 0.001 grams of hydrocarbons with a boiling range distribution between about 204° C. and about 300° C. at 0.101 MPa, at least 0.001 grams of hydrocarbons with a boiling range distribution between about 300° C. and about 400° C. at 0.101 MPa, and at least 0.001 grams of hydrocarbons with a boiling range distribution between about 400° C. and about 538° C. at 0.101 MPa. The hydrocarbons that have a boiling range distribution of at most 204° C. comprise iso-paraffins and n-paraffins with a weight ratio of the iso-paraffins to the n-paraffins of at most 1.4.

Abstract: A process is provided for producing petroleum coke that is high in strength and sufficiently small in thermal expansion coefficient and sufficiently suppressed from puffing. The process includes coking a feedstock containing a first heavy oil having a sulfur content of 1.0 percent by mass or less, a nitrogen content of 0.5 percent by mass or less, and an aromatic index of 0.1 or greater, produced by hydrodesulfurizing a heavy oil with a sulfur content of 1 percent by mass or more under conditions (1) where the total pressure is 10 MPa or greater and less than 16 MPa and the hydrogen partial pressure is 5 MPa or greater and 16 MPa or less or conditions (2) where the total pressure is 20 MPa or greater and 25 MPa or less and the hydrogen partial pressure is greater than 20 MPa and 25 MPa or less, and a second heavy oil with an aromatic index of 0.3 or greater and an initial boiling point of 150° C. or higher.

Abstract: Solid organic acids may be introduced into hydrocarbon solvents to form dispersions; the dispersions in turn may be introduced into crude oil. A wash water may be added to the crude oil to create an emulsion. The organic acids may transfer metals and/or amines from a hydrocarbon phase into an aqueous phase in an electrostatic desalter which resolves the emulsion into the two phases. Suitable solid organic acids include, but are not necessarily limited to, C2-C4 alpha hydroxyacids, such as, but not necessarily limited to, glycolic acid, malic acid, maleic acid, malonic acid, succinic acid and even sulfamic acid, chloroacetic acid, thiomalic acid, including esters of, polymers of, amine salts of, alkali metal salts of, and/or ammonium salts of all of these acids.

Abstract: Naphthenic acid corrosivity of hydrocarbon feedstocks is correlated with the chemical composition of naphthenic acids, and especially with a ratio between an alpha fraction and a beta fraction of naphthenic acids. Contemplated plants, configurations, and methods are directed to reducing naphthenic acid corrosivity of hydrocarbon feedstocks by increasing the beta fraction over the alpha fraction.

Abstract: Corrosive amine salts in hydrocarbon streams such as desalted crude oil streams can be prevented or avoided by adding certain amine scavenging chemicals to the streams to remove the amines therefrom. Suitable amine scavengers include, but are not necessarily limited to, carboxylic anhydrides and copolymers of carboxylic anhydrides, aromatic anhydrides, isocyanates, polyisocyanates, and epoxides. The non-corrosive reaction products of the amines and/or ammonia with these scavengers are preferably oil-soluble, non-basic and thermally stable. The amine scavengers bind up and react with the amines and/or ammonia to keep them from reacting with materials such as acids (e.g. HCl) to form corrosive amine salts.

Abstract: The present invention relates to a fluidized catalytic cracking process for cracking hydrocarbon feed having organo-sulfur compound as an impurity, said process comprising: adding a heavy metal poisoned spent catalyst to an equilibrium catalyst to obtain a composite circulating catalyst, wherein the heavy metal poisoned spent catalyst is added in an amount to maintain the activity of the circulating catalyst; and obtaining a fluidized catalytic cracked product. The present invention further relates to fluidized catalytic cracked product obtained by the process of the present invention. The sulfur content of the fluidized catalytic cracked product mainly gasoline which is boiling in the range of C5-250° C. reduced by more than 20% (wt/wt). And Research Octane number of the fluidized catalytic cracked product is increased by more than 1 unit.

Abstract: A process for treating a heavy hydrocarbon feedstock is disclosed. The process involves separating the feedstock into a residue component and a light component, the residue component having a lower API gravity than the light component and treating at least a portion of the light component to produce a synthetic transport diluent suitable for combining with at least a portion of the residue component to produce a product which meets applicable criteria for pipeline transport.

Abstract: A method for upgrading a synthesis oil synthesized by the Fisher-Tropsch synthesis reaction, the method includes: a hydroisomerization step of hydroisomerizing the synthesis oil to remove alcohols and olefins, and converting at least a portion of normal paraffins with a carbon number of 5 or more into isoparaffins to obtain a hydroisomerized synthesis oil; a crude oil mixing step of mixing the hydroisomerized synthesis oil with a crude oil to obtain a mixed crude oil; a mixed crude oil transferring step of transferring the mixed crude oil to a crude oil distillation unit of a refinery; and a mixed crude oil refining step of processing the transferred mixed crude oil in petroleum refining facilities of the refinery including at least the crude oil distillation unit.

Abstract: A process for preparing a catalyst precursor includes, in a first preparation step, impregnating a particulate catalyst support with an organic metal compound in a carrier liquid. The metal of the organic metal compound is an active catalyst component. An impregnated intermediate is formed, and is calcined to obtain a calcined intermediate. Thereafter, in a second preparation step, the calcined intermediate from the first preparation step is impregnated with an inorganic metal salt in a carrier liquid. The metal of the inorganic metal salt is an active catalyst component. An impregnated support is obtained, and is calcined, to obtain the catalyst precursor. The metal is in particular cobalt. The precursor is reduced, in particular with hydrogen, to obtain the active catalyst. Also claimed is a process for the hydrogenation of CO, as well as a process for the hydrogenation of an organic compound using the so-prepared catalyst.

Abstract: Contact of a crude feed with one or more catalysts containing a transition metal sulfide produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude feed. The crude product is a liquid mixture at 25° C. and 0.101 MPa. One or more properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed. In some embodiments, gas is produced during contact with one or more catalysts and the crude feed.

Abstract: The present invention is directed to the upgrading of heavy hydrocarbon feedstock that utilizes a short residence pyrolytic reactor operating under conditions that cracks and chemically upgrades the feedstock. The process of the present invention provides for the preparation of a partially upgraded feedstock exhibiting reduced viscosity and increased API gravity. This process selectively removes metals, salts, water and nitrogen from the feedstock, while at the same time maximizes the yield of the liquid product, and minimizes coke and gas production. Furthermore, this process reduces the viscosity of the feedstock in order to permit pipeline transport, if desired, of the upgraded feedstock with little or no addition of diluents.

Abstract: The invention provides formulations for facilitating the removal of oil from a surface using a chisel composition, wherein the chisel composition includes a polymer having one or more binding points with a high affinity for the surface, and one or more hydrophilic segments that form a hydrophilic coating on the surface, rendering the surface water-wet and thereby facilitating the removal of oil from the surface. The invention also provides for methods of use of such formulations.

Abstract: Mercaptans and/or hydrogen sulfide (H2S) in hydrocarbons, naphthas, gasolines, and the like may be scavenged therefrom by being brought into intimate contact with a mercaptan scavenger formulation containing at least one disubstituted azodicarboxylate of the formula R1OOCN?NCOOR2, where R1 and R2 are independently alkyl groups, alkenyl groups and aromatic groups having from 1 to 18 carbon atoms. These scavengers remove mercaptans and/or H2S from hydrocarbons faster than many conventional mercaptan scavengers. An effective scavenging amount of disubstituted azodicarboxylate in the hydrocarbon fluid ranges from about 5 to about 20 parts by weight based on 1 part as sulfur of mercaptan and/or H2S.

Abstract: A process for reducing the viscosity a heavy hydrocarbon feedstock, comprising: supplying the heavy hydrocarbon feedstock and elemental sulphur to a reaction zone and reacting, in the liquid phase, at a temperature in the range of from 300 to 750° C., a part of the heavy hydrocarbon feedstock with the elemental sulphur to form a reaction mixture comprising heavy hydrocarbon stream, carbon disulphide and hydrogen sulphide, followed by cooling the reaction mixture to provide treated heavy hydrocarbon stream comprising carbon disulphide. The invention also concerns products obtainable by the above process, as well as its use in pipeline transportation.

Abstract: The present invention provides a raw coke having such a structure that the graphitized product resulting from graphitization of the raw coke at a temperature of 2800° C. under an inactive gas atmosphere will have ratios of the crystallite size to the lattice constant of 360 or less in the (002) plane and 1500 or less in the (110) plane, as a raw coke providing active carbon produced by alkali-activating the raw coke, which is reduced in remaining alkali content and can simplify washing operation because washing liquid can easily pass through the activated carbon, or as a raw coke for the production of needle coke.

Abstract: A treated oil, such as a treated heavy oil, which has a viscosity which is lower than the viscosity of the oil prior to the treatment thereof (i.e., the initial oil). The temperature at which 80 mass % of the treated oil has boiled is within 25° C. of temperature at which 80 mass % of the oil prior to the treatment thereof has boiled. Thus, the treated oil and the oil prior to the treatment thereof, have distillation curves or boiling point curves which are the same as or approximate to each other.

Abstract: A crude product composition is provided. The crude product composition contains from 0.001 wt. % to 5 wt. % residue. The crude product composition contains hydrocarbons having a boiling point in the ranges of at most 204° C., from 204° C. to 300° C., from 300° C. to 400° C., and from 400° C. to 538° C. The hydrocarbons boiling in a range of at most 204° C. comprise paraffins, where the paraffins comprise iso-paraffins and n-paraffins, and the weight ratio of iso-paraffins to n-paraffins is at most 1.4.

Abstract: The present invention is related to a process oil using as a raw material a deasphalted oil obtained by deasphalting a vacuum residual oil of a crude oil and a manufacturing method of the process oil, the process oil having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass %; (b) a viscosity (100° C.) of 40 to 70 mm2/s; (c) an aniline point of 85 to 100° C.; (d) a flash point of 250° C. or higher; (e) an aromatic hydrocarbon content of 40 to 55 mass %; and (f) a polar substance content of 10 to 15 mass %. The present invention is also related to a process oil and a manufacturing method of the process oil, the process oil obtained by mixing: an extract obtained by deasphalting and solvent-extracting a vacuum residual oil of a crude oil; and a lubricant base oil having a polycyclic aromatics (PCA) content of less than 3 mass %, and having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass %; (i) a viscosity (100° C.

Abstract: The present invention is directed to a crude composition comprising hydrocarbons having a boiling range distribution of from 30° C. to 538° C., the crude composition having, per gram of crude composition, from 0.01 grams to 0.2 grams of hydrocarbon having a boiling range distribution of at most 204° C., where benzene comprises at most 0.005 grams per gram of the hydrocarbons having a boiling range distribution of at most 204° C., and from 0.000001 grams to 0.05 grams of hydrocarbons having a boiling range distribution of greater than 538° C.

Abstract: A crude product composition is provided comprising hydrocarbons that have a boiling range distribution between about 30° C. and 538° C. (1,000° F.) at 0.101 MPa, the hydrocarbons comprising iso-paraffins and n-paraffins with a weight ratio of the iso-paraffins to n-paraffins of at most 1.4.

Abstract: The heat-treating oil composition of the present invention is characterized by comprising a mixed base oil containing a low-boiling base oil having a 5% distillation temperature of from 300 to 400° C. in an amount of not less than 5% by mass but less than 50% by mass, and a high-boiling base oil having a 5% distillation temperature of 500° C. or higher in an amount of more than 50% by mass but not more than 95% by mass. There is provided a quenching oil composition capable of exhibiting a less fluctuation in hardness or quenching distortion of a metal material treated therewith even when a large number of the metal materials are quenched therewith at the same time.

Abstract: The present invention is directed to a crude product composition comprising hydrocarbons having a boiling range distribution of from 30° C. to 538° C., the crude product composition having, per gram of crude product composition, from 0.01 grams to 0.2 grams of hydrocarbons having a boiling range distribution of at most 204° C., where olefins comprise at least 0.02 grams per gram of the hydrocarbons having a boiling range distribution of at most 204° C., and from 0.000001 grams to 0.05 grams of hydrocarbons having a boiling range distribution of greater than 538° C.

Abstract: The invention provides a stock oil composition for needle coke for a graphite electrode, the stock oil composition having a 10 vol % distillation temperature of 280° C. or higher as the distillation property, and when separated into the aromatic component and non-aromatic component by elution chromatography, having an aromatic component content of 30-80 wt % with respect to the total weight of the stock oil composition and an aromatic component molecular weight of 255-1300, as well as a non-aromatic component normal paraffin content of at least 5 parts by weight with respect to 100 parts by weight of the aromatic component.

Abstract: A hydrocarbon composition is provided containing: at least 0.05 grams of hydrocarbons having boiling point in the range from an initial boiling point of the composition up to 204° C. (400° F.) per gram of the composition; at least 0.1 gram of hydrocarbons having a boiling point in the range from 204° C. up to 260° C. (500° F.) per gram of the composition; at least 0.25 gram of hydrocarbons having a boiling point in the range from 260° C. up to 343° C. per gram of the composition; at least 0.3 gram of hydrocarbons having a boiling point in the range from 343° C. up to 510° C. per gram of the composition; and at most 0.03 gram of hydrocarbons having a boiling point of greater than 538° C. per gram of the composition; at least 0.0005 gram of nitrogen per gram of the composition, wherein at least 30 wt. % of the nitrogen in the hydrocarbon composition is contained in nitrogen-containing hydrocarbon compounds having a carbon number of 17 or less as determined by GC-GC nitrogen chemiluminscence.

Abstract: A hydrocarbon composition is provided containing: at least 5 wt. % of hydrocarbons having boiling point in the range from an initial boiling point of the composition up to 204° C.; at least 10 wt. % of hydrocarbons having a boiling point in the range from 204° C. up to 260° C.; at least 25 wt. % of hydrocarbons having a boiling point in the range from 260° C. up to 343° C.; at least 30 wt. % gram of hydrocarbons having a boiling point in the range from 343° C. to 538° C.; and at most 3 wt. % of hydrocarbons having a boiling point of greater than 538° C.; wherein the composition contains aromatic hydrocarbons including mono-aromatic hydrocarbons, di-aromatic hydrocarbons, and polyaromatic hydrocarbons, where the combined mono-aromatic hydrocarbon compounds and di-aromatic hydrocarbon compounds are present in a weight ratio relative to the polyaromatic hydrocarbon compounds of at least 1.5:1.0.

Abstract: The present invention provides feedstock compositions for use of the production of an activated carbon for electric double layer capacitor electrodes or the production of needle coke, comprising a first heavy oil with an initial boiling point of 300° C. or higher, an asphalten content of 12 percent by mass or less, a saturate content of 50 percent by mass or more and a sulfur content of 0.3 percent by mass or less, produced as a residue resulting from vacuum-distillation of a petroleum-based oil and a second heavy oil with an initial boiling point of 150° C. or higher and a sulfur content of 0.5 percent by mass or less, produced by subjecting a hydrocarbon oil to fluidized catalytic cracking.

Abstract: The present invention provides a raw coke having such a structure that the graphitized product resulting from graphitization of the raw coke at a temperature of 2800° C. under an inactive gas atmosphere will have ratios of the crystallite size to the lattice constant of 360 or less in the (002) plane and 1500 or less in the (110) plane, as a raw coke providing active carbon produced by alkali-activating the raw coke, which is reduced in remaining alkali content and can simplify washing operation because washing liquid can easily pass through the activated carbon, or as a raw coke for the production of needle coke.

Abstract: A liquid release agent for application in particular to a panel edge region provided, or to be provided, with a coating by means of an adhesive or by means of glue, the panel preferably being a furniture panel, and the agent comprising a white oil as its carrier fluid, is configured such that the release agent comprises an alcoholic solution.

Abstract: A hydroconversion process includes feeding a heavy feedstock containing vanadium and/or nickel, a catalyst emulsion containing at least one group 8-10 metal and at least one group 6 metal, hydrogen and an organic additive to a hydroconversion zone under hydroconversion conditions to produce an upgraded hydrocarbon product and a solid carbonaceous material containing the group 8-10 metal, the group 6 metal, and the vanadium and/or nickel.

Abstract: A treated oil, such as a treated heavy oil, which has a viscosity which is lower than the viscosity of the oil prior to the treatment thereof (i.e., the initial oil). The temperature at which 80 mass % of the treated oil has boiled is within 25° C. of temperature at which 80 mass % of the oil prior to the treatment thereof has boiled. Thus, the treated oil and the oil prior to the treatment thereof, have distillation curves or boiling point curves which are the same as or approximate to each other.

Abstract: It has been discovered that metals and/or amines can be removed or transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains water-soluble hydroxyacids. Suitable water-soluble hydroxyacids include, but are not necessarily limited to glycolic acid, gluconic acid, C2-C4 alpha-hydroxy acids, poly-hydroxy carboxylic acids, thioglycolic acid, chloroacetic acid, polymeric forms of the above hydroxyacids, poly-glycolic esters, glycolate ethers, and ammonium salt and alkali metal salts of these hydroxyacids, and mixtures thereof. The composition may also include at least one mineral acid to reduce the pH of the desalter wash water. A solvent may be optionally included in the composition. The invention permits transfer of metals and/or amines into the aqueous phase with little or no hydrocarbon phase undercarry into the aqueous phase.

Abstract: The present invention relates generally to an additive composition for dissolving hydrocarbons. The composition includes a peroxygen compound and surfactant compounds.

Abstract: Contact of a crude feed with a hydrogen source in the presence of an inorganic salt catalyst produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude feed. The inorganic salt catalyst may includes one or more alkali metal salts and/or one or more alkaline-earth metal salts. The crude product is a liquid mixture at 25° C. and 0.101 MPa. One or more properties of the crude product may be changed by at least 10% relative to the respective properties of the crude feed.

Abstract: A process and apparatus process for preparing a resid-containing hydrocarbon feedstock for use in a regenerative pyrolysis reactor, comprising (a) feeding a resid-containing hydrocarbon feedstock to a thermal cracking unit; (b) thermally cracking at least about 60 wt. % of said resid having a boiling point of at least 565° C. in said hydrocarbon feedstock to form a vapor phase containing cracked hydrocarbons; (c) separating said vapor phase from remaining non-volatiles; and (d) converting the separated vapor phase in a regenerative pyrolysis reactor system.

Abstract: This invention relates to coking process additives and, related processes, such as upgrading heavy hydrocarbons, producing petroleum coke and lighter hydrocarbon products, and/or thermally cracking heavy hydrocarbons. The additive includes an anionic clay to increase a liquid product yield. Suitable anionic clays may include hydrotalcite materials and hydrotalcite-like materials.

Abstract: The present invention is directed to novel additives packages, to fluid compositions including the additives, to methods of using the fluid compositions and the additives package, to methods of recovering hydrocarbons, and to petroleum products made from hydrocarbons derived from these methods. The novel additives packages may be used in a fluid composition for fracturing a subterranean. The additives package of the present invention include one or more gelling agents; one or more cross-linking agent; and one or more high temperature stabilizers; wherein the additives package further comprises one or more ingredients selected from the group consisting of a clay stabilizer, a metallic base, a cross-link retarder, and a gel breaker, and any combination thereof; and wherein the additives package optionally includes a diluent.

Abstract: This invention relates to a hydrocarbon conversion process additive and related processes, such as upgrading a heavy hydrocarbon material and making sponge coke. The hydrocarbon conversion process additive works with thermal processes, catalytic processes, or thermal-catalytic processes. The hydrocarbon process conversion additive includes lignin or macromolecular substructures of lignin like para-coumaryl alcohol, coniferyl alcohol, or sinapyl alcohol.

Abstract: A more energy-efficient method of processing crude oil is achieved by viscoelastic shearing in order to increase the vapor pressure of the crude oil. This change in vapor pressure allows a more efficient separation of volatile components from non-volatile components in the crude oil. By optimizing the energy expenditure for shearing and the energy expenditure for separating the volatile components from the non-volatile components of the crude oil, while simultaneously removing the volatile components by distillation, one can reduce the overall energy input for the separation. Alternatively, it is possible to affect the distillation at a reduced temperature.

Abstract: Improved crude oil processing is achieved by viscoelastic shearing of crude oil at an elevated temperature. The shearing provides for an enriched light fraction and an enriched heavy fraction that can be more efficiently separated by distillation. Shearing is achieved using a mobile surface and immobile surface, or other flow geometry, under conditions providing for a transient phase separation.

Abstract: Embodiments of the present disclosure include compositions for enhanced oil recovery and methods of using the same. Compositions of the present disclosure include particles of a hydrophobic polymer having constitutional repeating units of which at least 10 percent are hydrolysable and through hydrolysis increase a viscosity of the aqueous composition within a subterranean formation.

Abstract: The present invention discloses an enhanced oil recovery method that contacts a gas and an alkylene carbonate with a subterranean formation.

Abstract: Disclosed is a method for steam-cracking naphtha, according to which a charge of hydrocarbons containing a portion of paraffinic naphtha, which is modified by adding a combination of a first component containing a portion of gasoline and a second component containing a portion of at least one hydrocarbonated refinery gas, and a paraffin-rich change containing at least one paraffin selected among propane, butane, or a mixture thereof are fed through a steam cracker in the presence of vapor. Also disclosed is a hydrocarbon composition suitable for steam cracking, containing a portion of a paraffinic naphtha, which is modified by adding a combination of a first component containing a portion of gasoline and a second component containing a portion of at least one hydrocarbonated refinery gas and a paraffin-rich charge containing at least one paraffin selected among propane, butane, or a mixture thereof.