74results about "Refining by heating/cooling" patented technology

This invention belongs to the field of cryogenic concentration technology, specifically relating to a cryogenic concentration method. It involves freezing a dilute solution into a solid or solid-liquid mixture, using gas as an energy medium, and leveraging the solid structure of the frozen material's surface and interior. Heat is transferred to the frozen material by applying negative or positive pressure. Through dissolution and separation, solutions are collected in stages to obtain solutions of different concentrations. Solutions meeting the target concentration are transferred to the next stage; solutions not meeting the target concentration are reused to further increase the concentration. This method improves the efficiency of cryogenic concentration and separation purification, is simple to operate, and is suitable for applications in food, cosmetics, biopharmaceuticals, petrochemicals, metal processing, and environmental protection.

Process and apparatus for recovering a product stream from a waste plastic feedstock and reducing the endpoint of the product stream is provided. A polymer oil is produced as a product stream by pyrolyzing the waste plastic feedstock in a pyrolysis reactor to produce a pyrolysis reactor effluent and passing the reactor effluent stream to a contact condensing column. In the contact condensing column, the pyrolysis reactor effluent stream is separated into a vapor product stream and a liquid product stream. The vapor product stream is recovered from the condensing column and the liquid product stream is passed back to the pyrolysis reactor for further reduction.

A process and system for reducing contaminants contained within a contaminated feedstock includes mixing the contaminated feedstock with water and at least one of a metal scavenger or reactant to form a feedstock-water-reactant mixture; feeding the mixture under pressure into a hydrothermal purification reactor, where the mixture is exposed to heat, pressure, and turbulent flow conditions to cause rapid reaction of the inorganic contaminants with the metal scavenger or reactant to form inorganic salts that separate into the aqueous phase; maintaining the temperature, pressure, and turbulent flow conditions of the feedstock-water-reactant mixture for a predetermined space-time to prevent the organic portion of the feedstock in the mixture from undergoing conversion reactions and form a hydrothermal reactor effluent; and separating the effluent into an aqueous phase containing salts of the inorganic contaminants and an organic phase containing a lower concentration of inorganic contaminants than the contaminated feedstock.

A problem arises when purifying a triglyceridic and / or free fatty acid feedstock for renewable hydrocarbon production, where such feedstock comprises C2-C6 aliphatic oxygenates, as they are transferred to the aqueous wastewater during the course of the purification, and which contributes to the degree of pollution of the aqueous wastewater measured as the chemical oxygen demand. The aqueous wastewater is extracted with the purified feedstock for renewable hydrocarbon production, which reduces the chemical oxygen demand of the aqueous wastewater by extracting the C2-C6 aliphatic oxygenates therefrom, while maintaining the purified feedstock for renewable hydrocarbon production in a quality that can be directly processed in a hydrotreating step, where the extracted C2-C6 aliphatic oxygenates are also converted to valuable hydrocarbons.

The utility model discloses a water bath heating and filtering device which comprises a water bath filtering box, a filtering funnel is connected to the top of the water bath filtering box in an inserted mode, a fixing assembly is arranged between the filtering funnel and the water bath filtering box, and an electric heating pipe is fixedly installed in the water bath filtering box. And four supporting mounting columns are fixedly connected to the bottom of the water bath filter box. According to the utility model, water is added into the water bath filter box through the water inlet pipeline, the water level submerges the conical part of the filter funnel, and the three groups of electric heating pipes are started to heat the water in the water bath filter box; crude oil is poured into the filtering funnel, filtered through the filtering paper and then flows into the material receiving beaker to be collected, a worker observes the speed of the crude oil flowing into the material receiving beaker and judges the fluidity of the crude oil, and convenience is brought to follow-up mining.

A system for refining crude oil to minimize emissions of toxic compounds in the atmosphere during refining. The crude oil is treated with viscosity-reductant additives, reducing viscosity by up to 50% and increasing API gravity by more than 2 points. The method of spray-cracking and vacuum-flashing of crude oil, the system separates light and heavy end chains within the reactor. The vapor is condensed into designer fuels using a multi-stage horizontal reverse condensate-condenser or closed-loop distillation tower. Process heater directs flue gases through high-salinity fluids, such as a brine-processing device to capture, sequester, or mineralize the CO2, CO, NOx, and other contaminants from the flue gases. This results in a significant reduction in emissions, a further reduction to near-zero emissions (>95-98%) is achieved by the combination of (1) the closed loop processes, tank blanketing and capturing, sequestering and mineralizing emitted flue gases from the heater combustion-exhaust.

A method for stabilizing whole crudes and condensate hydrocarbon mixtures. The method includes feeding a hydrocarbon mixture to a stabilizer column and separating the hydrocarbon mixture into an overhead offgas effluent and a stabilized hydrocarbon mixture; reboiling a stream from the stabilizer column with a heating medium, producing a reboiled stream; feeding the reboiled stream into the stabilizer column; heating a first side-stream from the stabilizer column with a stabilized hydrocarbon mixture from the stabilizer column, producing a heated first side-stream from the stabilizer column; and feeding the heated first side-stream into the stabilizer column.

The invention relates to a system (100) and a method for heating a hydrocarbon stream, comprising a combustion furnace (10) and at least one electric heating device (40) mounted upstream and / or downstream of the combustion furnace. The heating system includes a control system (50) configured to: - control at least one electric heating device (40) and the combustion furnace (10) to heat the hydrocarbon stream exiting the heating system to a target temperature, and - control at least one electric heating device (40) so as to maintain a temperature difference of the hydrocarbon stream between the inlet and outlet of the combustion furnace less than or equal to a threshold value. (Shorthand figure: Fig. 1)

Pitch particles may be produced by a grinding process, in which pitch fines may be recovered and recycled to a grinding apparatus as a pitch melt. Such methods may comprise: providing a petroleum pitch having a first softening temperature; grinding the petroleum pitch in a grinding apparatus below the first softening temperature to produce a plurality of pitch particles and a plurality of pitch fines; separating the pitch particles from the pitch fines; heating the pitch fines at a temperature above the first softening temperature to produce a pitch melt; and combining the pitch melt with the petroleum pitch in the grinding apparatus. The pitch melt hardens in the grinding apparatus and is reground. The pitch particles may be further stabilized by heating at a treatment temperature below the first softening temperature in an environment comprising about 1 mol % to about 20 mol % oxygen to form stabilized pitch particles.

A process for separating an olefin stream from a methane stream is disclosed. The process comprises providing an olefin stream comprising C2 and / or C3 olefins. The olefin stream is cooled in a heat exchanger with a mixed refrigerant stream to provide a cooled olefin stream. The cooled olefin stream is passed to a demethanizer column operating at an overhead pressure of about 344 kPa gauge (50 psig) to about 2069 kPa gauge (300 psig). The cooled olefin stream is fractionated in the demethanizer column to provide a demethanizer column overhead vapor stream and a demethanizer column bottoms liquid stream. The process provides an improved recovery / yield of olefins and also optimizes the cooling and / or heating of other process streams.

The invention relates to a method for extracting a wax from a pyrolysis residue, comprising the steps of (a) providing the pyrolysis residue, wherein the pyrolysis residue comprises the wax, (b) mixing the pyrolysis residue with a solvent at at least 30°C to obtain a mixture, wherein the wax is at least partially dissolved in the solvent, (c) cooling the mixture to crystallise at least one portion of the dissolved wax, (d) separating at least one portion of the crystallised wax from the mixture.

The invention relates to a treatment system (1) for treating at least one mineral oil, comprising a treatment circuit (2) having an inlet connected to at least one inlet tank (3) containing at least one mineral oil to be treated, and an outlet connected to at least one outlet tank (4) suitable for receiving at least one treated mineral oil. The treatment circuit includes at least one functional decontamination unit. The treatment system is notable in that it comprises: a functional additive assembly (ADD) designed to inject at least one additive into the treatment circuit, which mixes with the at least one oil to be treated to improve its properties; and a control unit (6) designed to regulate the dosage of the injected at least one additive based on several measurements of the intrinsic properties of the oil to be treated after decontamination. Abstract figure: Figure 2

The invention discloses a silicon network cross-linked polyether block polyamide pervaporation membrane as well as preparation and application thereof. The preparation method comprises the following steps: firstly preparing an n-butyl alcohol solution of Pebax, then adding siloxane and an alkali solution, carrying out solution crosslinking to obtain a crosslinked Pebax membrane casting solution, spin-coating the surface of a dried polysulfone ultrafiltration membrane with the crosslinked Pebax membrane casting solution, and drying to obtain the silicon network crosslinked polyether block polyamide pervaporation membrane. The preparation method disclosed by the invention is simple, the Pebax membrane which performs silicon network crosslinking through a one-pot method has the characteristics of short operation flow and high controllability, and the prepared silicon network crosslinked polyether block polyamide pervaporation membrane has relatively high permeability and selectivity and has relatively high adaptability to different feed concentrations.

The invention provides a method and a system for controlling ultralow emission of VOCs (Volatile Organic Compounds) of oil gas of an oil product. The oil product at least contains light components of at least one of C1, C2 and C3. The method comprises the following steps: S1, stripping light components of an oil product: stripping the light components in the oil product, taking the stripped light components as fuel gas for later use, and taking the light-removed oil product from which the light components are stripped as an adsorbent; step S2, elution of VOCs in the oil gas: enabling the oil gas to be treated to be in contact with the adsorbent in the step S1 so as to adsorb VOCs components in the oil gas to be treated, and obtaining rich oil containing the VOCs components and low-concentration oil gas with the VOCs components removed after absorption is completed; and S3, incineration treatment is conducted, specifically, the fuel gas obtained in the step S1, the low-concentration oil gas obtained in the step S2 and air are mixed in a multi-stage mode, multi-stage combustion treatment is conducted, and therefore emission tail gas with ultralow VOCs is obtained.

Methods and systems are disclosed. Systems may include a crude oil feed, steam recovery system, and first heat exchanger. The crude oil feed may be configured to receive a flow of crude oil. The steam recovery system may be configured to receive a first flow of low-pressure steam and produce a first flow of condensed steam. The first heat exchanger may be disposed along the crude oil feed. The first heat exchanger may be configured to receive the flow of crude oil and the first flow of condensed steam and produce, using the first flow of condensed steam, a first flow of treated crude oil from the flow of crude oil.

This invention utilizes mechanical vapor compression and / or thermal vapor compression, integrating compression loops across multiple process stages. A sequential network of compressors is used to increase the pressure and condensation temperature of vapor within each process stage as an internal vapor flow, and as an inter-vapor flow branching between process stages. Because available vapor is shared between compressor stages, the number of compressors can be reduced, improving economics. By separating vapor between compressor stages to balance the vapor mass flow rate across multiple process stages in the incremental compressor stages, the entire vapor compression system can be customized to individual process energy requirements and adapt to dynamic fluctuations in process conditions.

The present invention relates to an improved method for treating liquefied waste plastic, comprising: providing a volume of oil based on liquefied waste plastic; heat treating the volume of LWP-based oil; phase-separating the resulting heat-treated mixture volume into a first aqueous phase volume and a first oil phase volume; separating out a first aqueous phase volume; adjusting the pH of the first aqueous phase volume to a pH 9.0 or less; and separating the pH-adjusted volume phase into at least a second aqueous phase volume and a second oil phase volume.

The application discloses a heat exchange assembly and a hydrogenation system for diesel and wax oil hydrogenation, and the heat exchange assembly comprises a first heat exchanger, an inlet of a first heat medium channel of the first heat exchanger is used for inputting a first reaction effluent, an inlet of a first cold medium channel of the first heat exchanger is used for inputting a first reaction feed, and an outlet of the first cold medium channel is used for outputting the first reaction feed after heat exchange; a second heat exchanger, an inlet of a second heat medium channel of the second heat exchanger is communicated with an outlet of the first heat medium channel, an outlet of the second heat medium channel is used for being communicated with an inlet of a hot high separation tank, and an inlet of a second cold medium channel of the second heat exchanger is used for inputting a stripping tower bottom liquid; a third heat exchanger, an inlet of a third heat medium channel of the third heat exchanger is used for inputting a second reaction effluent, an inlet of a third cold medium channel of the third heat exchanger is communicated with an outlet of the second cold medium channel, and an outlet of the third cold medium channel is used for being communicated with downstream equipment; and a fourth heat exchanger. Compared with the prior art, the application can reduce equipment investment and improve heat exchange efficiency.

An improved method for removing contaminants from low-value waste fats and oils for the purpose of hydrodeoxygenation of diesel boiling range hydrocarbons. The method includes adding water to a contaminated FOG stream, subjecting the mixture to heating, and mixing to promote a reaction between the water and the FOG to remove organically bound contaminants from fats, oils, and greases (FOG). The reacted FOG is then separated from the contaminants. The reacted FOG results in a reduction of organically bound chlorine contaminants.

The present invention relates to a method for obtaining wax from a thermal decomposition residue, comprising the steps of (a) preparing the thermal decomposition residue containing wax, (b) mixing the thermal decomposition residue with a solvent at 30°C or higher to obtain a mixture in which the wax is at least partially dissolved in the solvent, (c) cooling the mixture to crystallize at least a portion of the dissolved wax, and (d) separating at least a portion of the crystallized wax from the mixture.

Asphalt particles may be produced by a grinding process, where asphalt fines may be recovered and recycled in the form of an asphalt melt to the grinding apparatus. Such a method may include: providing petroleum asphalt having a first softening temperature; grinding the petroleum asphalt in a grinding apparatus below a first softening temperature to produce a plurality of asphalt particles and a plurality of asphalt fines; separating the asphalt particles from the asphalt fine powder; heating the asphalt fines at a temperature above the first softening temperature to produce an asphalt melt; and combining the asphalt melt with petroleum asphalt in a grinding apparatus. The asphalt melt is hardened and ground again in a grinding device. The asphalt particles may be further stabilized to form stabilized asphalt particles by heating in an environment comprising from about 1 mol% to about 20 mol% oxygen at a processing temperature less than the first softening temperature.

1. A system and process for upgrading a hydrocarbonaceous composition, comprising: introducing a hydrocarbonaceous composition into a reaction zone heated by electricity, concentrated solar radiant heat, nuclear reactor heat, geothermal heat, molten salt, molten metal, or combinations thereof; heating the hydrocarbonaceous composition in the reaction zone to produce a product stream; and cooling the product stream to create a cooled product stream, wherein the reaction zone does not produce flue gas.

A system for processing oil and gas at an offshore facility includes a single stage separation module. A gas stream from the single stage separation module is pressurized in a primary compressor, and then is used to heat the incoming oil and gas upstream of the single stage separation module. Flash gas from treatment of an oil stream from the single stage separation module is pressurized in a flash gas compressor and then is used to heat glycol utilized in a gas dehydration unit. The pressurized flash gas is then commingled with the gas stream from the single stage separation module upstream of the primary compressor.

The heat exchange assembly comprises a first heat exchanger, a second heat exchanger, a third heat exchanger, and a fourth heat exchanger. An inlet of a first hot medium passage is used for importing a first-stage reacting product, an inlet of a first cold medium passage is used for importing a first-stage reacting feedstock, and an outlet of the first cold medium passage is used for exporting the first-stage reacting feedstock after heat exchange. An inlet of a second hot medium passage communicates with an outlet of the first hot medium passage, an outlet of the second hot medium passage communicates with an inlet of a hot high separation tank, and an inlet of a second cold medium passage is used for importing bottom liquid of a stripping tower.

The invention discloses a rotational flow gas pre-separation and coalescence dehydration integrated device suitable for a high-water-content oil field. The device is characterized in that a main body is internally provided with a containing cavity, the top of the main body is provided with a liquid inlet, and the bottom of the main body is provided with a drain outlet; the liquid inlet component is arranged at the top of the body; the atomizing part is arranged in the mounting cavity; the blocking component is arranged in the mounting cavity; the air outlet end is arranged above the atomizing part; the first liquid outlet end is arranged on the main body; mixed liquid is atomized through the atomization component, natural gas is separated preliminarily, the contact area and the collision rate are increased by additionally arranging the blocking components in different arrangement modes and achieving the synergistic effect with the atomization component, the natural gas separation efficiency is further improved, demulsification is effectively achieved, and dissolved gas in crude oil is released; mixed liquid particles carried in natural gas are separated in a heating-rotational flow-condensation mode of the liquid removal component, liquid particles carried in the gas are effectively removed, and the gas purity is improved.

The invention relates to an oil recovery unit (100) for a liquid, the recovery unit comprising: a housing (200) comprising: a filter unit (250), an evaporator chamber (300), a heating source (400) such as a heating unit, an oil pump unit (500) for generating an oil flow, a ventilation system (600) comprising at least: an air inlet (610) and an air outlet (620). Furthermore, the invention relates to a ventilation method for an oil recovery unit, comprising the following steps: starting the oil recovery unit (100) by starting an oil pump (500), ventilating the oil recovery unit (100) by means of a ventilation system (600), preferably an integrated ventilation system, wherein the ventilation system (600) is at least partially and preferably completely driven by the action of a motor (700).

The utility model relates to the technical field of chemical equipment, in particular to a raw oil buffer tank with a layered screening structure for environmental protection, which comprises a cylindrical tank body, an arc-shaped clamping cover is arranged at the top of the tank body, an air inlet pipe orifice is arranged on one side of the top of the clamping cover, and an exhaust pipe orifice is arranged on the other side of the top of the clamping cover. A plurality of annular discs are arranged on the outer wall of the middle of the tank body at equal intervals, drainage pipelines are symmetrically arranged on the two sides of each annular disc, an oil inlet port is further formed in the bottom of the tank body, a detachable flange plate is arranged outside the oil inlet port, a disc-shaped sealing plate is further arranged at the bottom end of the tank body, and a sealing cover is arranged at the bottom end of the sealing plate. Three supporting blocks are arranged on the circumferential face of the bottom of the sealing plate at equal intervals, and a plurality of frame connecting rods are arranged at the bottom of the sealing plate at equal intervals. Screening and oil liquid discharging can be promoted through the buckling plates which are symmetrically arranged in the tank body and provided with the openings, maintenance and repair are convenient, damage is not prone to occurring, and the structure is simple and practical.

The present invention provides a method (100) for operating a system (1) including a centrifuge (2) for separating at least one liquid phase and a sludge phase from a liquid feed mixture. The method (100) includes alternating between a first and a second operating mode. The first operating mode includes step a) feeding (101) the liquid feed mixture to be cleaned to the centrifuge (2), the liquid feed mixture having a first temperature, and step b) discharging (102) at least one separated liquid phase from the centrifuge (2). The second operating mode includes step c) stopping (103) the supply of the liquid feed mixture to the centrifuge (2) and step d) reducing (104) the temperature of the liquid feed mixture to a second temperature and / or reducing (105) the flow rate of the liquid feed mixture. The present invention also provides a system (1) for separating at least one liquid phase and a sludge phase from a liquid feed mixture.

Provided herein is a method of purifying a recycled or renewable organic material (10), wherein the recycled or renewable organic material (10) comprises more than 1 ppm silicon as silicon compounds, comprising the steps of (a) providing the recycled or renewable organic material (10); (b) heat treating (20) the recycled or renewable organic material (10) to form a heat treated recycled or renewable organic material, wherein the at least part of silicon compounds present in the recycled or renewable organic material (10) are converted to volatile silicon compounds, and (c) evaporating (30) volatile silicon compounds from the heat treated recycled or renewable organic material to obtain recycled or renewable organic material fraction (31) comprising less silicon than the recycled or renewable organic material (10) provided in step (a).

This invention discloses an adsorption method and apparatus for refined base oil, relating to the field of base oil adsorption technology. The adsorption method proposed in this invention can solve the problem of poor color and short service life caused by the presence of small amounts of gums, asphaltenes, and residual carbon in base oil, without polluting the ecological environment. The adsorption apparatus proposed in this invention includes a reaction chamber; a rotating cylinder is rotatably installed inside the reaction chamber, with a threaded portion on the outer side of the cylinder. The cylinder has a hollow structure, and its interior is divided into two chambers for storing raw materials by a partition. A mixing rod is rotatably installed at the bottom of the cylinder, with its top end communicating with the two chambers. A filter element is vertically slidably installed inside the reaction chamber for quickly filtering precipitates. This adsorption apparatus can accelerate the removal of precipitated substances and improve adsorption efficiency.