13results about "Refining with metals" patented technology

The present invention provides the use of a solid agent comprising a reductant for reducing the amount of reactive sulphur in an oil and / or reducing the dielectric dissipation factor of an oil, wherein either: (i) the oil is contacted with (a) the solid agent comprising the reductant, and (b) a liquid agent suitable for dispersing said solid agent; (ii) the oil is contacted with a solid substrate having the reductant on its surface; or (iii) the oil is an ester and is contacted with a particulate adsorbent support having the reductant on its surface.

Processes for quantitating the corrosivity of naphthenic acids in a sample comprising crude oil or a liquid fraction thereof by reacting the sample with a metal comprising iron to produce iron naphthenates that are then stabilized by a ligand. The stabilized iron naphthenates are then analyzed by mass spectrometry to accurately quantitate the percentage of total naphthenic acids in the sample that are iron-reactive naphthenic acids associated with metal corrosion.

Disclosed is a method and device for treatment of liquid hydrocarbons including purification and desulfurization of the liquid hydrocarbons using metallic sodium. The device comprises a vessel having attached a pressurizable pump and dispersing circuit comprising a pumping unit, a dispersing unit, a flow pipe and a throttle valve. The sodium together with the liquid hydrocarbons to be treated is circulated constantly through the pressurizable pump and dispersing circuit, wherein, by passing through the pressurizable pump and dispersing circuit, the sodium is dispersed directly in the stream of the hydrocarbons to be treated. Compared to conventional sodium dispersion desulfurizing processes, the disclosed method and device open up additional fields of application and significantly improve economy and achievable results.

Water is combined with an oligomer product that contains an oligomer and an alkyl aluminum catalyst to deactivate the catalyst and form a treated product containing the oligomer and aluminum-containing solids. The aluminum-containing solids then can be separated from the treated product.

A process for dehydrogenating a hydrocarbon feed comprising paraffins and / or naphthenes, in which said feed is contacted with a catalyst comprising an active phase based on at least one metal from group VIII, at least one element M1 selected from tin, germanium, lead, gallium, indium and thallium, and at least one element M2 selected from the alkali or alkaline earth elements, and a support comprising at least one refractory oxide, characterized in that the average macropore density of said support is greater than or equal to 900 kpores / mm² and less than 2000 kpores / mm² and in that the value of the packed filling density (DRT) is between 0.50 and 0.68 g / ml.

A process for dehydrogenating a hydrocarbon feed comprising paraffins and / or naphthenes, in which said feed is contacted with a catalyst comprising an active phase based on at least one metal from group VIII, at least one element M1 selected from tin, germanium, lead, gallium, indium and thallium, and at least one element M2 selected from the alkali or alkaline earth elements, and a support comprising at least one refractory oxide, characterized in that the average macroporous diameter of said support is between 0.40 µm and 0.80 µm and in that the value of the packed filling density (PTD) of said support is between 0.50 and 0.68 g / mL.

A process is provided for dechlorinating and separating a mixture of n-butane and alkylate. The process includes separating, in a separation zone, a feed stream comprising light hydrocarbons, propane, isobutane, organic chlorides, n-butane, and alkylate with C5+ hydrocarbons into an overheads stream comprising light hydrocarbons, propane, and isobutane and a bottoms stream comprising organic chlorides, n-butane and alkylate; passing the bottoms stream to a catalytic dechlorination zone configured to convert the organic chlorides to HCl and paraffins under catalytic dechlorination conditions, the catalytic dechlorination zone comprising a vessel and being configured to provide a HCl-rich stream, an n-butane-rich stream, optionally an isopentane-rich stream, and an alkylate-rich stream; removing the HCl-rich stream from the catalytic dechlorination zone as a gaseous overheads product; recovering the n-butane-rich stream from the catalytic dechlorination zone as a liquid side-draw product; optionally recovering the isopentane-rich stream from the catalytic dechlorination zone as a side-draw product; and recovering the alkylate-rich stream from the catalytic dechlorination zone as a liquid bottoms product.

A process for dehydrogenating a hydrocarbon feed comprising paraffins and / or naphthenes, in which said feed is contacted with a catalyst comprising an active phase based on at least one metal from group VIII, at least one element M1 selected from tin, germanium, lead, gallium, indium and thallium, and at least one element M2 selected from the alkali or alkaline earth elements, and a support comprising at least one refractory oxide, characterized in that the average macropore density of said support is greater than or equal to 2000 kpores / mm² and less than 5000 kpores / mm² and in that the value of the packed filling density (DRT) is between 0.50 g / mL and 0.68 g / ml.

The technology provides a method comprising the steps of: contacting a hydrocarbon feedstock with an effective amount of metallic sodium and an effective amount of an exogenous capping agent at a temperature of 250-500°C to produce a mixture of sodium salts and a converted feedstock, wherein the hydrocarbon feedstock comprises hydrocarbons having a sulfur content of at least 0.5 wt% and an asphaltene content of at least 1 wt%, the sulfur content comprising asphaltene sulfur and non-asphaltene sulfur, the converted feedstock comprises a hydrocarbon oil having a sulfur content lower than that in the hydrocarbon feedstock and a lesser asphaltene content than that in the hydrocarbon feedstock, and the ratio of asphaltene sulfur to non-asphaltene sulfur in the converted feedstock is lower than in the hydrocarbon feedstock.

The invention discloses a Fe / Ni co-doped W18O49 oxidative desulfurization catalyst as well as a preparation method and application thereof, and belongs to the technical field of oil product oxidative desulfurization catalytic materials. The preparation method comprises the following steps: dissolving a tungsten source in an alcohol solvent to obtain a solution A; adding an iron source and a nickel source into the solution A, and stirring to obtain a precursor mixed solution; and carrying out solvothermal reaction, suction filtration, washing and drying to obtain the Fe / Ni co-doped W18O49 oxidative desulfurization catalyst. The molar ratio of the Fe element in the iron source to the Ni element in the nickel source is (1: 0.1)-(1: 0.9), under the specific molar ratio, the Fe element in the iron source and the Ni element in the nickel source generate a synergistic catalytic effect in a W18O49 matrix, the electronic structure of the catalyst is optimized, the activation efficiency of the active site of the catalyst on an oxidizing agent H2O2 is improved, the adsorption capacity on sulfide molecules such as DBT is also enhanced, and the catalytic activity of the catalyst is improved. The oxidation reaction kinetics is accelerated, and the desulfurization performance is excellent.

This invention discloses a desulfurization method for high-sulfur, low-quality heavy oil, comprising: (1) the low-quality heavy oil in the raw material tank is pumped to the packed reactor by the raw material pump, and under certain temperature, pressure and space velocity, the sulfur-containing compounds in the low-quality heavy oil react with the iron packing; (2) the reaction products enter the gas-liquid separator for gas-liquid separation, the gas phase product is sent to the boiler as fuel, and the liquid phase product is divided into two paths, one path is pumped to the product tank by the product pump, and the other path is circulated to the raw material pump inlet by the product pump to mix with fresh raw materials. This invention specifically reacts the sulfur-containing compounds in the low-quality heavy oil with the iron packing. The inactive sulfides decompose into active sulfides at high temperature. The thiols in the active sulfides react with iron to generate ferrous sulfide and corresponding hydrocarbons. Hydrogen sulfide reacts with iron to generate ferrous sulfide and hydrogen. Elemental sulfur reacts with iron to generate ferrous sulfide. This invention does not consume hydrogen, does not use a catalyst, has mild reaction conditions, simple process, and low cost.

The invention discloses a method for removing organic sulfur in a C4 material. The removal method comprises the following steps: desulfurizing the C4 material in a liquid phase form through a one-section or two-section desulfurization reactor; wherein the desulfurization reactor is an isothermal bed reactor loaded with a supported catalyst; the supported catalyst comprises a carrier and a main active component supported on the carrier; the carrier is prepared from simple substances Re, RemOn, AgxOy and Al2O3; remOn is selected from one or more of Re oxides, m is 1 and / or 2, and n is selected from at least one positive integer of 1-7; the main active component comprises alkali metal and / or alkaline earth metal. According to the present invention, with the synergistic effect of Ag and Re, the loaded alkali metal and / or alkaline earth metal catalyst can achieve efficient desulfurization and refining under the low temperature condition, the unnecessary reaction can be avoided, the downstream hydrogenation and separation process is not affected, the removal process is simple, and the energy consumption is reduced.

The present invention provides the use of a solid aid comprising a reducing agent for reducing the active sulfur content in an oil and / or reducing the dielectric loss factor of an oil, wherein: (i) the oil is contacted with (a) a solid aid comprising the reducing agent and (b) a liquid aid suitable for dispersing the solid aid; (ii) contacting the oil with a solid substrate having the reducing agent on its surface; or (iii) the oil is an ester and is in contact with a particulate adsorbent carrier having the reducing agent on its surface.