48 results about "Hydrofluoroolefin" patented technology

An aerosol delivery system is disclosed. The system comprises an aerosol container housing an aerosol composition that includes a propellant mixture and an additive. The propellant mixture comprises a first hydrofluoroolefin propellant in an amount of 50% to 99% w / w % and a second hydrofluoroolefin propellant in an amount of 1% to 50% w / w %. The additive is present in an amount of up to 70% w / w %, has a specific gravity of 0.5 to 1.2, a partition coefficient of −0.5 to 4, and a water content of up to 2% w / w %. A micromist actuator with an orifice diameter of 0.25 to 0.80 microns produces droplets of 25 to 50 microns. The aerosol has a viscosity of 0.5 to 3.0 centipoise, ensuring fine mist dispersion, prolonged airborne suspension, and consistent delivery, making it suitable for environmental scenting, air treatment, and personal care applications.

A method for producing polyolefin-based resin expanded beads includes dispersing polyolefin-based resin particles in an aqueous medium, adding a physical blowing agent into a sealed container, and expanding the resin particles by impregnating the resin particles with the physical blowing agent in the sealed container, then releasing the resin particles from the sealed container together with the aqueous medium to produce expanded beads having an apparent density of 10 to 80 kg / m3. The physical blowing agent includes a hydrofluoroolefin. An addition amount of the hydrofluoroolefin is 10 to 30 parts by mass with respect to 100 parts by mass of the resin particles.

To provide an aerosol product having sufficient cooling performance without using hydrofluoroolefin as a propellant.SOLUTION: An aerosol product comprising an aerosol composition containing not less than 40vol% of at least one propellant selected from the group consisting of dimethyl ether and liquefied petroleum gas, an aerosol vessel for filling the aerosol composition, the aerosol vessel comprising a pressure vessel and an aerosol valve fixed to the pressure vessel, and a spray member attached to the aerosol valve, wherein the aerosol composition contains substantially no water, the aerosol valve is not formed with a gas phase introduction hole, and the spray member is not provided with a mechanical breakup mechanism, the aerosol valve has a stem hole cross-sectional area / an injection hole cross-sectional area of 5.0 or more.SELECTED DRAWING: Figure 1

The invention relates to the technical field of refrigerants, and particularly provides an environment-friendly refrigerant and a preparation method and a recovery system thereof. In order to solve the problems that a traditional refrigerant is high in global warming potential (GWP), large in degradation energy consumption and not matched with a novel catalyst, the refrigerant is hydrofluoroolefin containing beta-position C = C double bonds, the molecular general formula is CF3CF = CHR (R is H or F), the molecular size is smaller than or equal to 0.8 nm, and the refrigerant is specially designed for being matched with a mesoporous structure of a TNT-120 titanium dioxide nanotube, and adsorption-mass transfer optimization and photo-thermal synergistic degradation synergism are achieved. And a closed-loop solution from production to scrapping is provided for the novel refrigerant. The recycling system adopts a catalytic reactor of which the inner wall is loaded with a titanium dioxide nano coating, and the refrigerant is efficiently degraded under the conditions of low temperature (25-240 DEG C) and low light intensity (0.5-3W / cm < 2 >). The refrigerant has a GWPlt (GWPlt); the refrigerant has the advantages of being good in heat stability, low in degradation energy consumption, environmentally friendly in the whole life cycle and the like, is suitable for replacing a high-GWP refrigerant and meets the requirement for green refrigeration.

The present invention provides an aerosol composition that does not require emulsification of water and liquefied gas, can be uniformly dispersed for several seconds (e.g., 2 seconds or more) by shaking the container before spraying, can be sprayed with a stable composition, and produces a freezing spray that provides a sustained cooling effect. [Solution] An aerosol composition comprising water, a hydrofluoroolefin having a boiling point of 5 to 30°C, and dimethyl ether, wherein the dimethyl ether content is 10 to 40% by mass, and the composition is separated into two layers.

A B-side component of a two component low pressure polyurethane foam, the B-side component includes: a fluoride ion scavenger; one or more polyols consisting of all polyether polyols and, if the fluoride ion scavenger is a polyol, the fluoride ion scavenger, and no polyester polyols; at least one silicone polyether surfactant; at least one flame retardant and / or plasticizer; a catalyst package comprising an amine catalyst; and an HFO propellant consisting of 1,3,3,3-tetrafluoropropene and no other HFO propellant. Water is in an amount of less than 1% by weight of the B-side prior to inclusion of the HFO propellant at the B-side.

The objective is to provide a method for producing polyurethane foam that exhibits good miscibility between the polyol composition and the polyisocyanate composition, and also has excellent initial reactivity during polyurethane foam formation. [Solution] The present invention relates to a method for producing polyurethane foam by mixing and reacting a polyol composition containing a catalyst comprising a polyol and a metal carboxylate salt with a polyisocyanate composition containing a polyisocyanate, and then foaming and curing the mixture. The production method includes a step of supplying a blowing agent A in a separate system from the polyol composition and the polyisocyanate composition, wherein the blowing agent A comprises a mixture of carbon dioxide and a hydrofluoroolefin with a boiling point of 0°C or lower. The blowing agent A is added to at least one of the polyol composition and the polyisocyanate composition in a ratio of 0.01 to 4 parts by mass per 100 parts by mass of polyol in the polyol composition, and the reaction proceeds after the addition.

Disclosed are a method for controlling heating of an HVAC system for an electric vehicle and an HVAC system thereof. According to various embodiments, in an operation of the HVAC system including a main heating unit in which a first refrigerant circulates and an auxiliary heating unit in which a second refrigerant circulates, at least one of the first refrigerant and the second refrigerant may comprise at least one of: a natural refrigerant; a hydrofluorocarbon (HFC)-based refrigerant; a hydrofluoroolefin (HFO)-based refrigerant; a hydrochlorofluorocarbon (HCFC)-based refrigerant; a hydrocarbon-based refrigerant that is not a natural refrigerant; and a halon or a perfluorocarbon (PFC)-based refrigerant.

The present invention relates to a polyol component for producing polyurethane foam, the polyol component comprising: (a) a compound having at least two isocyanate-reactive hydrogen atoms; (b) at least one polyurethane catalyst (b1) containing at least one tertiary nitrogen atom, the tertiary nitrogen atom being part of an aliphatic or aromatic ring and / or bonded to at least one secondary carbon atom; and at least one polyurethane catalyst (b2) selected from the group consisting of cyclic amides, wherein the polyurethane catalysts (b1) and (b2) do not have a dimethylamino group bonded to a primary carbon atom; (c) a blowing agent comprising a hydrofluoroolefin; and (d) optional additives. The present invention also relates to a process for producing polyurethane foam, which comprises mixing the polyol component with an isocyanate component comprising at least one polyisocyanate to form a reaction mixture and convert the resulting mixture into a polyurethane, and to the polyurethane foam obtained by such a process.

Provided is a method capable of separating 1-functional and 2-functional fluorine-containing ether compounds having a polyfluoropolyether chain and a prescribed functional group with good yield and high separation capacity. A separation method is a separation method for separating a compound represented by formula (1) and a compound represented by formula (2) from a mixture containing them using a chromatograph using a stationary phase and a mobile phase, wherein the mobile phase contains at least one specific solvent selected from the group consisting of hydrofluoroolefins, hydrochlorofluoroolefins, chlorofluoroolefins, cyclic hydrofluoroolefins, cyclic hydrochlorofluoroolefins, cyclic chlorofluoroolefins, cyclic hydrofluorocarbons, cyclic hydrochlorofluorocarbons, cyclic chlorofluorocarbons, and perfluoroketones.A‑(OX) m ‑O‑Z‑(R) n1 Formula (1) (R) n2 ‑Z‑(OX) m ‑O‑Z‑(R) n3 Formula (2)

In a refrigeration cycle system, a mixed refrigerant is used as a working medium for the refrigeration cycle, and the mixed refrigerant contains a hydrofluoroolefin and a high-solubility refrigerant having a higher solubility in refrigerating machine oil than the hydrofluoroolefin. The control unit controls at least one of the compressor and the expansion valve by setting the upper limit value of the internal pressure to P0 (P0 < P1) and the upper limit value of the exhaust gas temperature to T0 (T0 < T1) during a period from when the compressor is started until a predetermined time t1 has elapsed. After a predetermined time t1 has elapsed, the upper limit value of the internal pressure is changed from P0 to P1, and the upper limit value of the exhaust gas temperature is changed from T0 to T1, thereby controlling at least one of the compressor and the expansion valve. This makes it possible to satisfactorily suppress or alleviate disproportionation reactions even when a refrigerant oil is used together with a working medium for a refrigeration cycle containing a fluoroolefin and another refrigerant.

This method of producing a hydrofluoroolefin includes contacting a mixture including a hydrofluorocarbon and at least one selected from the group consisting of CXA1XA2═CXA3XA4, CXA5≡CXA6, and CXA7XA8XA9—CXA10XA11XA12 with a catalyst, and obtaining the hydrofluoroolefin by a dehydrofluorination reaction of the hydrofluorocarbon, each of XA1 to XA12 independently represents a hydrogen atom, a fluorine atom, a chlorine atom, or a hydrocarbon chain having 1 to 8 carbon atoms, at least one of XA1 to XA4 has at least one of a hydrogen atom or a chlorine atom, at least one of XA5 or XA6 has at least one of a hydrogen atom or a chlorine atom, and at least one of XA7 to XA12 has a halogen atom other than a fluorine atom.

Provided is a separation method with which a halogenated unsaturated hydrocarbon and a halogenated saturated hydrocarbon can be separated well.　In this separation method, an adsorbent and a composition containing a halogenated unsaturated hydrocarbon and a halogenated saturated hydrocarbon are brought into contact, the halogenated unsaturated hydrocarbon or the halogenated saturated hydrocarbon is selectively made to adsorb to the adsorbent, and the halogenated unsaturated hydrocarbon and the halogenated saturated hydrocarbon are separated. The halogenated unsaturated hydrocarbon is at least one type of halogenated unsaturated hydrocarbon selected from the group consisting of hydrofluoroolefins and hydrochlorofluoroolefins, the halogenated saturated hydrocarbon is at least one type of halogenated saturated hydrocarbon selected from the group consisting of hydrofluorocarbons and hydrochlorofluorocarbons, and the adsorbent is at least one type of adsorbent selected from [Fe2(O2)(dobdc)], [Co(AIN)2], and Co-gallate.

A method for producing a hydrofluoroolefin, which comprises bringing a mixture containing a hydrofluorocarbon and at least one member selected from the group consisting of CXA1 XA2 = CXA3XA4, CXA5 = CXA6, and CXA7XA8XA9-CXA10XA11XA12 into contact with a catalyst, and obtaining a hydrofluoroolefin by a dehydrofluorination reaction of the hydrofluorocarbon. XA1-XA12 each independently represents a hydrogen atom, a fluorine atom, a chlorine atom, or a C1-8 hydrocarbon chain, at least one of XA1-XA4 has at least one of a hydrogen atom and a chlorine atom, at least one of XA5 and XA6 has at least one of a hydrogen atom and a chlorine atom, and at least one of XA7-XA12 has a halogen atom other than a fluorine atom.

The present invention relates to a cleaning agent composition which is excellent in cleaning property and does not corrode plastic substrates such as polycarbonate and polystyrene which are not resistant to solvents. The cleaning agent composition of the present invention comprises the following (A) to (C) components, the mass ratio of the (A) component and the (B) component being 11:89 to 99:1, (A) cis-1-chloro-3,3,3-trifluoropropene, (B) one or more compounds selected from the group consisting of hydrofluoroolefins, hydrofluorocarbons and hydrofluoroethers which do not contain a chlorine atom, and (C) a hydrocarbon solvent.

The embodiment of the present application provides a high-boiling hydrogen fluoride alkene ether compound and a preparation method and application thereof, relates to the field of fluorine chemical industry and heat management technology. The hydrogen fluoride alkene ether compound provided by the embodiment of the present application has a structure shown in formula I. The hydrogen fluoride alkene ether compound provided by the embodiment of the present application has excellent environmental protection (ODP value is 0, and GWP value is less than 100) and high boiling point (> 150 DEG C), thereby having a wide adaptive temperature range. Moreover, the hydrogen fluoride alkene ether compound has excellent material compatibility, has no corrosiveness to various metals, high polymer materials and glass ceramic materials; has low low-temperature viscosity; has excellent insulation performance and good high-temperature resistance. The hydrogen fluoride alkene ether compound is used as a temperature control working medium, has high efficient temperature control stability advantages, and can achieve the purpose of energy saving and consumption reduction. The embodiment of the present application provides a preparation method of the hydrogen fluoride alkene ether compound, raw materials are easy to obtain, the process is simple, the yield is high, and excellent cost advantages are achieved.

Disclosed are a method and apparatus for operating a virtual HVAC model implemented as a digital twin. The method is configured to simulate and control thermal conditions within a vehicle environment. The method comprises receiving input data related to vehicle operating conditions and environmental factors, and processing the input data using a trained artificial intelligence model to simulate thermal behavior within a vehicle cabin. The virtual HVAC system is then controlled based on the simulation to evaluate performance and optimize energy usage. The virtual HVAC model utilizes a refrigerant selected from a wide range of types, including natural refrigerants, hydrofluorocarbons (HFCs), hydrofluoroolefins (HFOs), and others.

A heat pipe including: a container including one end portion and another end portion opposite the one end portion, an end face of the one end portion and an end face of the other end portion being sealed; a wick structural body provided inside the container; and a working fluid encapsulated inside the container, wherein the wick structural body includes a fine groove provided on an inner surface of the container and / or a porous body provided on the inner surface of the container, and the working fluid contains hydrofluoroolefin.

Refrigerant blends of HFOs and HCs, having HFOs as the main component, provide better cooling capacity than incumbent HFOs and maintain low flammability. Refrigerant blends of HFOs and HCs, having HCs as the main component, allow for larger HC charge at reduced flammability. Such compositions include (i) at least one compound selected from HFO-1234ze(E), HFO-1234ze(Z), HFO-1336mzz(E), HFO-1336mzz(Z), HCFO-1233zd(E), HCFO-1233zd(Z), CFO-1112, and combinations thereof, (ii) at least one other compound selected from HC-290, HC-1270, R-600, R-600a, R-601, R-601a, R-744, R-717, and combinations thereof, and optionally (iii) at least one other compound selected from HFC-134, HFC-134a, HFC-125, HFC-32, HFC-152a, and combinations thereof. These compositions are useful as refrigerants in air conditioning, heat pumps, refrigeration, and / or chillers.

Disclosed are a method for controlling heating of an HVAC system for an electric vehicle and an HVAC system thereof. According to various embodiments, in an operation of the HVAC system including a main heating unit in which a first refrigerant circulates and an auxiliary heating unit in which a second refrigerant circulates, at least one of the first refrigerant and the second refrigerant may comprise at least one of a natural refrigerant; a hydrofluorocarbon (HFC)-based refrigerant; a hydrofluoroolefin (HFO)-based refrigerant; a hydrochlorofluorocarbon (HCFC)-based refrigerant; a hydrocarbon-based refrigerant that is not a natural refrigerant; and a halon or a perfluorocarbon (PFC)-based refrigerant.

According to various embodiments of the present invention, there is provided an operation processing method of a virtual air-conditioning model implemented by digital twin and an apparatus therefor, the method performing temperature control of a vehicle based on a virtual air-conditioning model reflecting a refrigerant, the refrigerant includes at least one of a natural refrigerant, a hydrofluorocarbon (HFC) refrigerant, a hydrofluoroolefin (HFO) refrigerant, a hydrochlorofluorocarbon (HCFC) refrigerant, a hydrocarbon refrigerant, which is a non-natural refrigerant, and a Haron or perfluorocarbon (PFC) refrigerant, and the refrigerant includes at least one of a natural refrigerant, a hydrofluorocarbon (HFC) refrigerant, a hydrofluoroolefin (HFO) refrigerant, a hydrochlorofluorocarbon (HCFC) refrigerant, a hydrocarbon refrigerant, which is a non-natural refrigerant, and a Haron or perfluorocarbon (PFC) refrigerant.

The invention discloses a method and a device for separating fluorinated gas based on an ionic liquid extraction agent and double-parallel evaporator organic Rankine cycle coupling process. Through screening of the ionic liquid extraction agent, efficient separation of the fluorinated gas mixture is achieved, and the purity of the product can reach 99.5% or above; the organic Rankine cycle system with the double parallel evaporators is used for recovering waste heat, the heat efficiency of waste heat recovery can reach 23% or above, the total energy consumption of the system and the using amount of the extracting agent are obviously reduced, the purity is obviously improved compared with a traditional process, and an efficient and environment-friendly technical scheme is provided for recycling and reusing of the hydrofluorocarbon / hydrofluoroolefin mixed refrigerant. The application prospect is good.

The application discloses a polyurethane foam composition, a polyurethane foam and a preparation method thereof, and a refrigeration device, and the polyurethane foam composition comprises component A and component B, the component A comprises a polyol composition, a composite foaming agent, a nucleating agent, a reinforcing agent and an auxiliary agent, and the component B comprises an isocyanate compound, wherein the composite foaming agent comprises a hydrofluoroolefin foaming agent and a bio-based foaming agent, and the bio-based foaming agent comprises a polylactic acid-based copolyester. Through the synergistic effect between the components, the polyurethane foam prepared from the polyurethane foam composition has ultramicro-pore structure and low thermal conductivity, has low density and high strength, is suitable for multiple scenes, and is environmentally friendly and compliant.

The application discloses an environmentally-friendly submerged electronic cooling liquid, which contains long-chain hydrofluoroolefin 5,5,6,6,7,7,-heptafluoro-4,4-bis(trifluoromethyl)-1-heptene, and further contains one or more than two of type I hexafluoropropylene trimer, perfluorocycloalkene 1,3,3,4,4,5,5-heptafluoro-2-(perfluoroprop-2-yl)cyclopent-1-ene and 3,3,4,4,5,5-hexafluoro-1,2-bis(perfluoroprop-2-yl)cyclopent-1-ene; and the preparation method of the electronic cooling liquid is as follows: adding one, two or three of type I hexafluoropropylene trimer and perfluorocycloalkene into the long-chain hydrofluoroolefin and stirring. The electronic cooling liquid of the application introduces C=C double bond structure or / and cyclic structure into fluorine-containing compounds, reduces dielectric constant and GWP100 value, improves the electrical signal stability of the used electronic components, and reduces the damage to the environment; and the preparation method is simple and easy to realize.

A process and composition is described for the inclusion of polyether polyols in concentrations greater than 10% loading on the B-side formulation with a catalyst package less than 1% loading on the B-side formulation. In one specific example, the use of glycerin as a fluorine ion scavenger is utilized to improve performance of the polyurethane systems through a twelve-month shelf life.

An electrical apparatus have a grounded tank with a conductor at an inside thereof, in which:the inside of the grounded tank is filled with insulating arc-extinguishing gas;the insulating arc-extinguishing gas is confined in the grounded tank by a sealing member;the insulating arc-extinguishing gas includes at least one selected from the group consisting of a hydrofluoroolefin having 3 or 4 carbon atoms and a hydrochlorofluoroolefin having 3 or 4 carbon atoms; andthe sealing member includes at least one selected from the group consisting of an ethylene propylene rubber, an isobutylene-isoprene rubber, a chloroprene rubber, a natural rubber, a nitrile rubber, a hydrogenated nitrile rubber, an urethane rubber, a chlorosulfonated polyethylene rubber, a vinylidene fluoride based fluororubber, a tetrafluoroethylene-perfluorovinylether based rubber and a polytetrafluoroethylene.

This working medium for refrigeration cycles contains, as a refrigerant component, a fluoroolefin that can undergo a disproportionation reaction, and contains, as a disproportionation inhibitor that inhibits the disproportionation reaction of the fluoroolefin, a hydrofluoroolefin having 3 or more carbon atoms that is different from the fluoroolefin. The hydrofluoroolefin may be configured such that the molecular structure does not have a perfluoromethyl group (-CF3) or a perfluoromethylene group (-CF2-), or may have at least one of a methyl group (-CH3), a monofluoromethyl group (-CH2F), and a difluoromethyl group (-CHF2) in the molecular structure.

The present invention discloses a tertiary amine comprising cycloalkyl moiety catalyst system useful in the production of polyurethane and / or polyisocyanurate foams using hydrohaloolefin blowing agents and a catalyst system. In particular, disclosed is a polyol premix composition comprising the catalyst system, a polyol, and a hydrohaloolefin blowing agent, wherein the polyol premix may be used to produce a polyurethane and / or polyisocyanurate foam by combining the polyol premix with an isocyanate.