38results about "Refining with metal salts" patented technology

A treatment composition for remediating for remediating hydrogen sulfide (H2S), carbon dioxide (CO2) and other contaminant(s) in a fluid, including: an organic or hydrocarbon based liquid; at least one hydroxide compound or a hydrate thereof; and sodium sulfide (Na2S) or a hydrate thereof.

The invention belongs to the technical field of desulfurizer preparation, and particularly relates to a desulfurizer for oil extraction of oil and gas fields and a preparation method thereof. The desulfurizing agent for oil extraction of the oil and gas field is prepared from the following raw materials: N-octadecyl-1, 3-propane diamine, an ionic liquid and organic copper mixture, ammonium molybdate, lysine sodium, hydroxyethylidene diphosphonic acid, polyoxyethylene sorbitan monostearate and the balance of water. According to the desulfurizing agent for oil extraction of the oil-gas field, water is used as a solvent, N-octadecyl-1, 3-propane diamine, an ionic liquid and organic copper mixture and ammonium molybdate in raw materials are used as main desulfurizing components to remove organic sulfur and inorganic sulfur, and lysine sodium, hydroxyethylidene diphosphonic acid and polyoxyethylene sorbitan monostearate are added, so that the desulfurizing agent for oil extraction of the oil-gas field is obtained. Due to the synergistic effect of the raw materials, the efficient removal of inorganic sulfur and organic sulfur in oil extraction of an oil and gas field is realized.

A liquid treatment composition for remediating and removing mercaptans, H2S and other sulfur based contaminants from contaminated hydrocarbon liquids, the treatment composition consisting essentially of a carrier solvent and at least one alkoxide compound. The liquid treatment composition may contain no terpene. Further, the liquid treatment composition may include water. The at least one alkoxide compound includes at least one of sodium methoxide and sodium ethoxide.

Process, method and apparatus for reducing sulfide contaminants in crude oil such as would be present in a crude oil process stream.

Certain zinc-based scavengers can scavenge sulfur compounds from fluids containing one or more hydrocarbons, water and the sulfur compound, but may leave deposits of insoluble zinc sulfide (ZnS) which can be problematic. When the zinc-based scavengers are used together with at least one zinc sulfide deposition preventer, deposition of zinc sulfide can be reduced or eliminated. The sulfur compound may be hydrogen sulfide (H2S). Suitable zinc-based sulfur compound scavengers include, but are not necessarily limited to, a zinc carboxylate, a tetramine zinc carbonate, zinc carbonate, zinc ammonium carbonate, zinc chelates, and / or zinc lignosulfonate. Suitable zinc sulfide deposition preventers include, but are not necessarily limited to, sodium salts of a phosphorous-based polymer, polymeric ammonium salts, acrylic sulfonate non-ionic terpolymers, and / or modified acrylic acid polymers.

The invention relates to the technical field of organic chlorine treatment in reformate, in particular to a chlorine treatment agent and method for reformate and application. The chlorine treating agent is prepared by innovatively fusing various components such as a molecular sieve, zinc oxide, mesoporous silica and an MOFs material, supplementing with a titanium source and cerium source composite coating and carrying out mixing, molding, roasting and atomic layer deposition. The chlorine treatment agent can be used for dechlorinating reformate, solves the problems of poor organic chlorine removal performance and the like of the existing chlorine treatment agent, can effectively remove various organic chlorine and inorganic chlorine at the same time, has the advantages of high dechlorinating precision, large chlorine capacity, high active component utilization rate, good mechanical property and the like, prolongs the service life of the chlorine treatment agent, and meets the long-period operation requirement of a device.

Provided is a method for removing chlorine from a waste plastic. The method includes a) reacting a waste plastic with a neutralizing agent; and b) reacting the product of step a) with a copper compound. 95% by weight or more of chlorine is removed based on the total weight of the waste plastic.

The present application relates generally to processes, systems, and compositions for removing mercury from liquid hydrocarbons. In one embodiment, the application pertains to a method for removing mercury from hydrocarbons. The method comprises reacting a mercury species within the hydrocarbons with an additive composition to produce a reaction product. The reaction product typically comprises a different speciation for mercury than the original mercury species. The reaction product is then removed from the hydrocarbons. The additive composition employed comprises a sulfur or heteroatom donating substance and a substantially oil-soluble solvent.

The present invention belongs to the field of dechlorination technology, and specifically relates to a liquid-phase dechlorinating agent, a preparation method thereof, and an application thereof. The liquid-phase dechlorinating agent provided by the present invention comprises the following raw material components in parts by weight: 10-70 parts of a mesoporous molecular sieve; 1-20 parts of an alkali metal compound; 10-30 parts of an active ingredient; 0.1-5 parts of a quaternary ammonium salt compound; and 10-30 parts of a binder. The mesoporous molecular sieve has a silicon-aluminum molar ratio of (10-100):1 and a specific surface area of ​​500-1000 m 2 / g, with a pore size of 2-10nm. The dechlorination agent formed by the interaction of a specific high silicon-aluminum ratio mesoporous molecular sieve, an alkali metal compound, an active component, a quaternary ammonium salt compound, and a binder can simultaneously and efficiently remove organic chlorine and inorganic chlorine.

The invention discloses a modified MCM-22 molecular sieve catalyst and a preparation method and application thereof, the preparation method comprises the following steps: S1, adding MCM-22 molecular sieve raw powder into an alkaline solution, reacting for a preset time, and filtering to obtain a first sample; s2, adding the first sample into an ammonium nitrate solution, mixing and stirring, filtering, and roasting to obtain a second sample; and S3, adding the second sample in the step S2 into a molybdenum ion solution, mixing and stirring, standing for a preset time, filtering, washing, drying and roasting to obtain the modified MCM-22 molecular sieve catalyst. According to the preparation method of the modified MCM-22 molecular sieve catalyst provided by the invention, framework silicon in the molecular sieve is selectively dissolved through the alkaline solution, so that a pore channel of the molecular sieve is expanded, and the proportion of a medium acid site of the molecular sieve is increased through molybdenum modification, so that the diffusion and catalysis requirements of high-carbon olefins are effectively met; the reasonable regulation and control on the isomerization product composition are realized.

The application belongs to the technical field of desulfurizer preparation, and particularly relates to a desulfurizer for oil and gas field oil production and a preparation method thereof. The desulfurizer for oil and gas field oil production comprises the following raw materials: N-octadecyl-1,3-propanediamine, an ionic liquid-organic copper mixture, ammonium molybdate, sodium lysine, hydroxyethylidene diphosphonic acid, polyoxyethylene sorbitan monostearate, and water as the balance. The desulfurizer for oil and gas field oil production uses water as a solvent, and N-octadecyl-1,3-propanediamine, the ionic liquid-organic copper mixture and ammonium molybdate in the raw materials as main desulfurization components to remove inorganic sulfur and organic sulfur, and sodium lysine, hydroxyethylidene diphosphonic acid and polyoxyethylene sorbitan monostearate are added to enhance the stability and permeability of the system, so that the raw materials synergize to achieve efficient removal of inorganic sulfur and organic sulfur in oil and gas field oil production.

A method for removing contaminants from a waste plastics pyrolysis stream containing the contaminants by introducing an effective amount of an additive thereto and separating the contaminants from the stream by a physical process, where suitable additives include, but are not necessarily limited to, crude oil demulsifiers, crude oil wax control additives, crude oil pour point reducers, dispersants / antifoulants, nanoscale metallic oxides, overbased metal oxide carbonates, and combinations thereof.

A method and kit for inhibiting microbial proliferation in a fuel container are disclosed. The method involves introducing antimicrobial particles designed to be trapped at the fuel-water interface by interfacial tension, thereby concentrating antimicrobial agents at a primary site of microbial growth. These particles release antimicrobial ions into the water phase, creating a growth inhibition zone that can extend into the sludge zone. A kit is also provided, including at least two separate containers of particles being a denser type that settles and remains at the tank bottom and a lighter type that settles but is subsequently lifted to the interface upon water accumulation.

A method and kit for inhibiting microbial proliferation in a fuel container are disclosed. The method involves introducing antimicrobial particles designed to be trapped at the fuel-water interface by interfacial tension, thereby concentrating antimicrobial agents at a primary site of microbial growth. These particles release antimicrobial ions into the water phase, creating a growth inhibition zone that can extend into the sludge zone. A kit is also provided, including at least two separate containers of particles being a denser type that settles and remains at the tank bottom and a lighter type that settles but is subsequently lifted to the interface upon water accumulation.

A method of removing hydrogen sulfide from an industrial process fluid, the method comprising adding a treatment composition to the industrial process fluid, wherein the treatment composition comprises a mixture of a formaldehyde-based sulfide scavenger and a bisulfite and / or a phosphonium.

The present disclosure relates to a method for refining pyrolysis oil, a refined pyrolysis oil obtained by the method, and the use of the refined pyrolysis oil in steam cracking or partial oxidation. The method comprises the steps (i) subjecting crude pyrolysis oil containing hydrocarbons and impurities to a separating operation and thereby forming refined pyrolysis oil and waste liquid, and (ii) subjecting the waste liquid to advanced oxidation treatment and filtering the treated waste liquid, wherein the separating operation comprises using a washing solution to wash the crude pyrolysis oil, the washing solution being an aqueous solution of a transition metal compound or an aluminum compound.

The invention relates to a system and a method for purifying waste plastic pyrolytic oil (pyoi) by using a water-based extraction method.

The invention relates to a plastic oil desiliconization agent, a preparation method thereof and a plastic oil desiliconization method, the desiliconization agent comprises 5-95 wt% of magnesium oxide and 5-95 wt% of aluminum oxide on the basis of the dry basis weight of the desiliconization agent, and at least part of magnesium oxide and aluminum oxide form magnesium aluminate spinel, the weight of the magnesium aluminate spinel accounts for more than 60% of the total weight of the magnesium oxide and the aluminum oxide; the bulk density of the desiliconizing agent is 0.5 to 0.85 g / cm < 3 >. The desiliconization agent disclosed by the invention has a good desiliconization effect.

The present invention relates to a method for removing hydrogen sulphide and / or organic compounds comprising at least one sulfhydryl group from a hydrocarbon stream, wherein said hydrocarbon stream is contacted with an aqueous composition containing at least one zinc and / or iron lignosulfonate salt. The invention also relates to the use of at least one salt chosen from zinc lignosulfonate salts and iron lignosulfonate salts for removing hydrogen sulphide and / or organic compounds comprising at least one sulfhydryl group from a hydrocarbon stream.

The present invention provides a method for producing waste plastic pyrolysis oil, comprising the steps of: (S1) supplying waste plastic raw material and a process oil stream to a first melting tank and mixing them to obtain a primary molten material; (S2) passing the primary molten material through a first filter to remove unmelted solid material; (S3) supplying the primary molten material from which the unmelted solid material has been removed to a second melting tank and heating it to obtain a secondary molten material; (S4) pyrolyzing the secondary molten material to obtain a pyrolysis product comprising a gas phase fraction and a liquid phase fraction; and (S5) supplying the pyrolysis product to a distillation column and purifying it.

The invention discloses a solid ferrous sulfide deodorization passivator and a preparation method thereof. The deodorization passivator is prepared from an oxidizing agent, an activating agent, a passivator and a hydrogen sulfide inhibitor in parts by weight: 10-60 parts of the oxidizing agent, 10-60 parts of the activating agent, 5-40 parts of the passivator and 5-30 parts of the hydrogen sulfide inhibitor. The cleaning agent can permeate into a FeS deposition layer attached to the inner wall of a pipeline or equipment, iron in FeS finally forms a stable water-soluble complex, secondary deposition of iron is avoided, the cleaning effect is good, cleaning waste liquid generated during cleaning is free of heavy metal ions, pollution to the environment is reduced, and treatment is convenient; in the FeS cleaning process, part of S is oxidized to generate SO4 < 2->, generation of H2S is reduced, release of H2S can be adsorbed and inhibited, odor is eliminated, air pollution is reduced, and the cleaning agent is high in safety and environmentally friendly. The deodorizing passivator is solid and is convenient to transport and store.

Process, method and apparatus for reducing sulfide contaminants in crude oil such as would be present in a crude oil process stream.

The invention provides a method for preparing pyrolytic oil from waste plastic, the method comprising: (S1) supplying a waste plastic raw material and a process oil stream to a first melting tank and mixing the waste plastic raw material with the process oil stream to obtain a primary melt; (S2) passing the primary melt through a first filter to remove unmelted solid material; (S3) supplying the primary melt from which the unmelted material is removed to a second melting tank, and raising the temperature of the primary melt to obtain a secondary melt; (S4) pyrolyzing the secondary melt to obtain a pyrolysis product containing a gaseous fraction and a liquid fraction; and (S5) supplying the pyrolysis product to a distillation column and refining the pyrolysis product.

The invention relates to the technical field of molecular sieve catalysts, and discloses a molecular sieve catalyst and a preparation method and application thereof. According to the molecular sieve catalyst, the molecular sieve catalyst contains a molecular sieve, and the molecular sieve is a silicon-aluminum molecular sieve; the molar ratio of silicon oxide to aluminum oxide of the molecular sieve is 5-45, the ratio of the acid amount of the outer surface of the molecular sieve to the total acid amount of the molecular sieve is 0.001-0.02, the acid amount of the outer surface of the molecular sieve is measured by adopting an in-situ adsorption infrared method, and the total acid amount of the molecular sieve is measured by adopting an ammonia temperature programming adsorption method; and the adsorption capacity of the molecular sieve on isobutane is 0.1-1 time that of the molecular sieve on 2-trans-butene. The ratio of the outer surface acid amount to the total acid amount of the molecular sieve catalyst is in a specific range, so that the surface of the molecular sieve has higher alkane-alkene adsorption selectivity, and further higher alkylation reaction cycle life and product selectivity are obtained.

The present invention provides a method of preparing pyrolysis oil from waste plastics, the method including: (S1) feeding a waste plastic raw material and a process oil stream to a first melting tank and mixing the waste plastic raw material and the process oil stream to obtain a primary melt; (S2) passing the primary melt through a first filter to remove a non-melted solid material; (S3) feeding the primary melt from which the non-melted solid material is removed to a second melting tank and increasing a temperature of the primary melt to obtain a secondary melt; (S4) feeding the secondary melt to a pyrolysis reactor and after pyrolysis discharging a gaseous upper stream and a liquid lower stream; and (S5) condensing the gaseous upper stream discharged from the pyrolysis reactor and then feeding the gaseous upper stream condensed to a distillation column and refining the gaseous upper stream condensed.

The application discloses a marine biomass desulfurization catalyst and a preparation method thereof, and belongs to the field of catalysis technology. The catalyst is prepared by taking marine biomass as a carbon source carrier, slowly adding a metal aqueous solution into the carbon source carrier to prepare a uniformly dispersed carbon metal solution, mixing the uniformly dispersed carbon metal solution with sodium hydroxide to perform a hydrothermal synthesis reaction to obtain a catalyst precursor, performing centrifugal washing on the catalyst precursor, and then performing heat treatment on the obtained filter cake to prepare the marine biomass desulfurization catalyst. The catalyst prepared by the application mainly takes marine biomass as a porous carbon carrier, is cheap and easy to obtain, and is green and environment-friendly, as compared with traditional porous carbon materials such as polyacrylonitrile and polyethylene glycol. Meanwhile, the desulfurization catalyst is prepared into a nanowire morphology by a hydrothermal synthesis method, has small metal aggregation degree, more metal active centers per unit area, large metal dispersity, and good adsorption and desulfurization performance.

The present invention provides a method of preparing pyrolysis oil from waste plastics, the method including: (S1) feeding a waste plastic raw material and a process oil stream to a first melting tank and mixing the waste plastic raw material and the process oil stream to obtain a primary melt; (S2) passing the primary melt through a first filter to remove a non-melted solid material; (S3) feeding the primary melt from which the non-melted solid material is removed to a second melting tank and increasing a temperature of the primary melt to obtain a secondary melt; (S4) feeding the secondary melt to a pyrolysis reactor and after pyrolysis discharging a gaseous upper stream and a liquid lower stream; and (S5) condensing the gaseous upper stream discharged from the pyrolysis reactor and then feeding the gaseous upper stream condensed to a distillation column and refining the gaseous upper stream condensed.

Systems and processes of purifying waste plastic pyrolysis oil (pyoil) using water based extractions.

Process, method and apparatus for reducing sulfide contaminants in a crude oil stream.

The present application relates generally to processes, systems, and compositions for removing mercury from liquid hydrocarbons. In one embodiment, the application pertains to a method for removing mercury from hydrocarbons. The method comprises reacting a mercury species within the hydrocarbons with an additive composition to produce a reaction product. The reaction product typically comprises a different speciation for mercury than the original mercury species. The reaction product is then removed from the hydrocarbons. The additive composition employed comprises a sulfur or heteroatom donating substance and a substantially oil-soluble solvent.