62results about "Refining by solvent de-asphalting" patented technology

The invention discloses a solvent deasphalting extraction tower, which comprises a tower body, which is internally provided with a heating settling section, an extraction section and a deoiled asphalt collection area in sequence from top to bottom; an inner cylinder is arranged in the tower body, an annular space is formed between the inner cylinder and the tower wall, and asphaltene and colloid are separated out from the extracted deasphalted oil solution in the heating settling section and are downwards settled in the annular space; the heat exchange pipe is spiral and is arranged in the annular space, a heat exchange medium used in the heat exchange pipe has the same property as a solvent used for deasphalting in the tower body, and the temperature of the solvent used as the heat exchange medium is higher than that of the solvent used for deasphalting in the tower body. The heat exchange medium is replaced by the heated solvent, so that the heat exchange requirement of the top of the extraction tower can be met, and the problem that the discharged material of the extraction tower carries steam or heat-conducting oil and other existing heat exchange media can be effectively avoided; the heat exchange pipe is arranged in the annular space between the inner cylinder and the tower wall, so that colloid and asphaltene separated out after heat exchange can move downwards from an independent channel, and the solvent-oil ratio per unit volume in the extraction section filler is effectively increased.

The present disclosure relates to a process for conversion of hydrocracked pitch into distillates in a slurry hydro-conversion reactor in presence of hydrogen gas with recycling of a hydrocracked pitch residue to achieve improved overall conversion and minimize fresh addition of catalyst. The slurry hydro-conversion of hydrocracked vacuum residue along with recycle of hydrocracked pitch residue (4d) provides improved overall conversion of >97% with very less yield of <3 wt. % pitch (>540° C.) along with distillates (C6+−370° C.) in a yield of 55 wt. % and VGO (370-540° C.) in a yield of 28.3 wt. %. The recycling of hydrocracked pitch residue back to slurry hydro-conversion reactor facilitates the minimization of the addition of fresh catalyst to the reactor section.

An integrated process for upgrading a hydrocarbon oil feed stream utilizing a delayed coker and steam enhanced catalytic cracker includes solvent deasphalting the hydrocarbon oil stream to form at least a deasphalted oil stream and heavy residual hydrocarbons, the heavy residual hydrocarbons including at least asphaltenes; delayed coking the heavy residual hydrocarbons to form petroleum coke and a delayed coker product stream; hydrotreating the delayed coker product stream and the deasphalted oil stream to form a light C5+ hydrocarbon stream, and a heavy C5+ hydrocarbon stream; steam enhanced catalytically cracking the light C5+ hydrocarbon stream to form a light steam enhanced catalytically cracked product stream including olefins, benzene, toluene, xylene, naphtha, or combinations thereof; and steam enhanced catalytically cracking the heavy C5+ hydrocarbon stream to form a heavy steam enhanced catalytically cracked product including olefins, benzene, toluene, xylene, naphtha, or combinations thereof.

The invention discloses a method for preparing deasphalted oil through solvent deasphalting. The method comprises the following steps: extracting petroleum residual oil serving as raw material oil by using an alkane solvent added with a carrying agent as an extracting agent to obtain extract liquor, namely deasphalted oil; particularly, the petroleum residual oil contains a carrying agent; the carrying agent in the extraction agent and the carrying agent in the raw oil are respectively and independently selected from at least one of isooctyl phosphate, tri (4-nonylphenyl) phosphite, tri-p-tolyl phosphate, tri (2, 2, 3, 3-tetrafluoropropyl) phosphate, 2, 2, 2-trifluoroethanol and 2-propylaniline. When the method is used for producing the deasphalted oil, the product quality can be improved on the premise of ensuring the yield of the deasphalted oil.

An integrated process for upgrading a hydrocarbon oil feed stream utilizing a delayed coker and steam enhanced catalytic cracker includes solvent deasphalting the hydrocarbon oil stream to form at least a deasphalted oil stream and heavy residual hydrocarbons, the heavy residual hydrocarbons including at least asphaltenes; delayed coking the heavy residual hydrocarbons to form petroleum coke and a delayed coker product stream; hydrotreating the delayed coker product stream and the deasphalted oil stream to form a light C5+ hydrocarbon stream, and a heavy C5+ hydrocarbon stream; steam enhanced catalytically cracking the light C5+ hydrocarbon stream to form a light steam enhanced catalytically cracked product stream including olefins, benzene, toluene, xylene, naphtha, or combinations thereof; and steam enhanced catalytically cracking the heavy C5+ hydrocarbon stream to form a heavy steam enhanced catalytically cracked product including olefins, benzene, toluene, xylene, naphtha, or combinations thereof.

The present disclosure relates to embodiments of a process for producing asphalt binder containing a mixture of soft plastics from urban solid waste rich in polypropylene and polyethylene. The asphalt binder produced may be applied in the production of diluent suitable for the production of PAC with pre-salt RASF.

A method for stabilizing asphaltenes in petroleum feedstocks such as crude oil includes adding to the feedstock an effective amount of an additive containing at least one waste plastic. Suitable waste plastics include, but are not necessarily limited to, polyethylene, polyethylene terephthalate, polystyrene, polycarbonate, polyamide, and polyurethane, and combinations thereof. By "stabilizing" is meant keeping the asphaltenes in solution in the petroleum feedstocks.

The process herein can be used to thermally crack various hydrocarbon feeds and can completely omit the refinery link while the process of making crude oil into chemicals is very flexible in the crude oil aspect. In embodiments herein, the crude oil is gradually separated into at least a light fraction and a heavy fraction. These fractions are delivered to one of three upgrading operations, including a fixed bed hydroconversion unit, a solvent deasphalting unit, or an ebullated bed hydrocracking unit, depending on the mass of the light fraction and the heavy fraction. The product from the upgrading operation may be used as a feed to a steam cracker.

In accordance with one or more embodiments herein, an integrated process for upgrading a hydrocarbon oil feed stream utilizing a delayed coker, steam enhanced catalytic cracker, and an aromatics complex includes solvent deasphalting the hydrocarbon oil stream; delayed coking the heavy residual hydrocarbons; hydrotreating the delayed coker product stream and the deasphalted oil stream to form a light C5+ hydrocarbon stream and a heavy C5+ hydrocarbon stream; steam enhanced catalytically cracking the light C5+ hydrocarbon stream; steam enhanced catalytically cracking the heavy C5+ hydrocarbon stream; passing at least a portion of the light steam enhanced catalytically cracked stream, the heavy steam enhanced catalytically cracked stream, or both to a product separator to produce a olefin product stream, a naphtha product stream, and a BTX product stream; and processing the naphtha product stream in the aromatics complex to produce benzene and xylenes.

Processes herein may be used to thermally crack various hydrocarbon feeds, and may eliminate the refinery altogether while making the crude to chemicals process very flexible in terms of crude. In embodiments herein, crude is progressively separated into at least light and heavy fractions. Depending on the quality of the light and heavy fractions, these are routed to one of three upgrading operations, including a fixed bed hydroconversion unit, a solvent deasphalting unit, or an ebullated bed hydrocracking unit. Products from the upgrading operations may be used as feed to a steam cracker.

A process and system to deasphalt used motor oil distillate residue including VTAE the process including feeding the used motor oil distillate residue and a supercritical solvent to an asphaltene separator that outputs an overhead having deasphalted oil and a bottoms that includes pitch.

The invention discloses an asphaltene aggregating agent composition as well as a preparation method and application thereof. The aggregating agent composition comprises the following components in percentage by mass: 75-85 wt% of waste plastic; 5 wt% to 15 wt% of deoiled asphalt; 2 wt% to 10 wt% of kitchen waste oil; 2 wt% to 10 wt% of Tween-80; and 1 wt%-2 wt% of sulfonic acid. The asphaltene aggregating agent composition is suitable for producing deasphalted oil from petroleum residual oil, and the solvent deasphalting extraction quality and extraction efficiency are improved.

The invention discloses a solvent deasphalting extraction tower, which at least comprises: a tower body, which is internally provided with a heating settling section, an extraction section and a deoiled asphalt collection area in sequence from top to bottom; separating out asphaltene and colloid from the extracted deasphalted oil solution in a heating settling section, and settling downwards; the property of a heat exchange medium used in the heat exchange tube is the same as that of a solvent used for deasphalting in the tower body, and the temperature of the solvent used as the heat exchange medium is higher than that of the solvent used for deasphalting in the tower body. According to the invention, the heat exchange medium is replaced by the heated solvent, so that the heat exchange requirement of the top of the extraction tower can be met, the problem that the discharged material of the extraction tower carries the existing heat exchange medium such as steam or conduction oil can be effectively avoided, and meanwhile, the solvent after heat exchange can enter the extraction tower to be used as a deasphalting solvent after temperature control.

The present invention relates to a method of processing liquefied biomass comprising a hydroliquefaction step of providing a liquefaction effluent by liquefying biomass in the presence of a hydrogen source and a slurry-type catalyst, and converting at least part of the bioasphaltenes into components of lower boiling points. The liquefaction effluent comprises oil product, bioasphaltenes and solids. The conversion step comprises recirculating at least a portion of the liquefaction effluent comprising bioasphaltenes to the hydroliquefaction step and / or subjecting at least a portion of the liquefaction effluent comprising bioasphaltenes to hydroprocessing.

A process and system for converting a high-pour-point organic feedstock to an upgraded product that exhibits good low-temperature properties (cloud point, pour point, and viscosity) and improved transportability. The high-efficiency process includes a continuous-flow, high-rate hydrothermal reactor system and integrated separation systems that result in low complexity, small footprint, high energy efficiency, and high yields of high-quality upgraded product. The system is specifically desirable for use in converting waxy feedstocks, such as yellow and black wax petroleum crudes and wax from the Fischer-Tropsch (FT) process, into upgraded crude that exhibits a high diesel fraction and, correspondingly, low vacuum gas oil (VGO) fraction.

A method for producing one or more olefins and one or more lubricant base oils is disclosed. The method includes hydrocracking hydrocarbons from a hydrocarbon feed stream comprising vacuum gas oil to produce a stream comprising hydrocracked hydrocarbons. The method further includes fractionating the hydrocracked hydrocarbon-containing stream to form an intermediate stream. The method further includes steam cracking the one or more intermediate streams to produce at least one olefin and processing the one or more intermediate streams to produce at least one lubricant base oil.

A process and system for converting a high-pour-point organic feedstock to an upgraded product that exhibits good low-temperature properties (cloud point, pour point, and viscosity) and improved transportability. The high-efficiency process includes a continuous-flow, high-rate hydrothermal reactor system and integrated separation systems that result in low complexity, small footprint, high energy efficiency, and high yields of high-quality upgraded product. The system is specifically desirable for use in converting waxy feedstocks, such as yellow and black wax petroleum crudes and wax from the Fischer-Tropsch (FT) process, into upgraded crude that exhibits a high diesel fraction and, correspondingly, low vacuum gas oil (VGO) fraction.

An integrated process for upgrading a hydrocarbon oil feed stream includes solvent deasphalting the hydrocarbon oil stream; processing the heavy residual hydrocarbons in a gasification unit to form syngas and gasification residue; hydrotreating the deasphalted oil stream to form a C3-C4 hydrocarbon stream, a light C5+ hydrocarbon stream, and a heavy C5+ hydrocarbon stream; dehydrogenating the C3-C4 hydrocarbon stream to form propylene and butylene; steam enhanced catalytically cracking the light C5+ hydrocarbon stream; steam enhanced catalytically cracking the heavy C5+ hydrocarbon stream; passing at least a portion of the light steam enhanced catalytically cracked stream, the heavy steam enhanced catalytically cracked stream, or both to a product separator to produce a olefin product stream, a naphtha product stream, and a BTX product stream; and processing the naphtha product stream in the aromatics complex to produce benzene and xylenes.

The present invention relates to a process for hydroconversion of a feedstock comprising a plastic fraction (102), in particular derived from plastic waste, and a heavy hydrocarbon fraction (101) containing a portion of at least 50% by weight, or even at least 80% by weight, having a boiling point of at least 300°C. The hydroconversion uses one or more ebullated bed or hybrid ebullated-entrained bed reactors (20) operating in the presence of hydrogen and H2S, and preferably two successive hydroconversion steps, in order to produce materials of higher quality, with a lower boiling point, for example for the production of fuels, while enabling plastic waste to be upgraded. H2S is used to improve the conversion of the plastic fraction of the feedstock, and is contained in a recycled hydrogen stream resulting from the process, wherein the content of H2S is between 2% and 70% by weight relative to the plastic fraction of the feedstock.

The present invention relates to a process for producing middle distillates from a feedstock comprising a residual hydrocarbon feedstock and a hydrogen-deficient feedstock. The process comprises: (a) a step of dewaxing the residual hydrocarbon feedstock to obtain a dewaxed product having at least 50% by weight of a boiling point above 550 °C and an asphaltene product; (b) a step of combining the dewaxed product with the hydrogen-deficient feedstock to produce a mixed dewaxed product, wherein the hydrogen-deficient feedstock has a hydrogen (H) content of at least 6% by weight to a maximum of 11.3% by weight; (c) a step of hydrodemetallizing at least a part of the mixed dewaxed product obtained from step (b) to produce a hydrodemetallized product; (d) a step of hydrotreating at least a part of the hydrodemetallized product obtained from step (c) to produce a hydrotreated product; (e) a step of hydrocracking at least a part of the hydrotreated product obtained from step (d) to produce a hydrocracked product; and (f) a step of subjecting at least a part of the hydrocracked product obtained from step (e) to a separation treatment to produce at least a middle distillate fraction.

Systems and methods are provided for partial upgrading of heavy hydrocarbon feeds to meet transport specifications, such as pipeline transport specifications. The systems and methods can allow for one or more types of improvement in heavy hydrocarbon processing prior to transport. In some aspects, the systems and methods can produce a partially upgraded heavy hydrocarbon product that satisfies one or more transport specifications while incorporating an increased amount of vacuum gas oil and a reduced amount of pitch into the partially upgraded heavy hydrocarbon product. In other aspects, the systems and methods can allow for increased incorporation of hydrocarbons into the fraction upgraded for transport, thereby reducing or minimizing the amount of hydrocarbons requiring an alternative method of disposal or transport. In still other aspects, the systems and methods can allow for reduced incorporation of external streams into the final product for transport while still satisfying one or more target properties.

The present invention relates to resid processing, particularly related to conversion of resid material with maximum recovery of lighter hydrocarbons. The invented process utilizes a novel scheme for integration of solvent de-asphalting and delayed coking processes to maximize the residue conversion to valuable products, with cleaner quality of middle distillates and fuel oil products, in comparison with other integrated solvent de-asphalting and delayed coking schemes. This process also has an additional flexibility to vary the recycle quantity, without impacting fractionator operation of the delayed coking section, which further enhances the product recovery and achieves maximum conversion of the resid feedstock, with minimum impact on liquid product properties.

Systems and methods are provided for partial upgrading of heavy hydrocarbon feeds to meet transport specifications, such as pipeline transport specifications. The systems and methods can allow for one or more types of improvement in heavy hydrocarbon processing prior to transport. In some aspects, the systems and methods can produce a partially upgraded heavy hydrocarbon product that satisfies one or more transport specifications while incorporating an increased amount of vacuum gas oil and a reduced amount of pitch into the partially upgraded heavy hydrocarbon product. In other aspects, the systems and methods can allow for increased incorporation of hydrocarbons into the fraction upgraded for transport, thereby reducing or minimizing the amount of hydrocarbons requiring an alternative method of disposal or transport. In still other aspects, the systems and methods can allow for reduced incorporation of external streams into the final product for transport while still satisfying one or more target properties.

Used lubricating oils are fed to a dehydration / fuel stripping unit to create de-watered / defueled feedstock which is fed to a Vacuum Distillation Column ( VDC) to remove and send lighter fractions for processing into base oil. Vacuum Tower Asphalt Extender (VI' AE) is collected from the Vacuum Distillation Bottom (VDB) of the VDC and fed to a Solvent Deasphalting unit (SDA) along with a. hydrocarbon solvent, to create a Concentrated Asphaltene Polymer Residue (CAPR) containing concentrations of the depleted polymer additives and wear metals. In particular embodiments, the CAPR is used to create relatively high- grade asphalt binders suitable for paving applications.

A method for upgrading heavy oil is provided, which integrates thermal cracking, hydrogenolysis, and catalytic aquathermolysis. A catalytic hydrogen-aquathermolysis reactor receives a heavy oil feed, water, and hydrogen. A catalytic material and a viscosity reducer are also introduced. The catalytic hydrogen-aquathermolysis reactor is operated under conditions effective to produce an upgraded heavy oil product.

A process for steam cracking a whole crude including a volatilization step performed to maintain a relatively large hydrocarbon droplet size. The process may include contacting a whole crude with steam to volatilize a portion of the hydrocarbons, wherein the contacting of the hydrocarbon feedstock and steam is conducted at an initial relative velocity of less than 30 m / s, for example. The resulting vapor phase, including volatilized hydrocarbons and steam may then be separated from a liquid phase comprising unvaporized hydrocarbons. The hydrocarbons in the vapor phase may then be forwarded to a steam pyrolysis reactor for steam cracking of the hydrocarbons in the vapor phase.

The process herein can be used to thermally crack various hydrocarbon feeds, and can completely omit refineries, while making the crude oil to chemical process very flexible in crude oil aspects. In embodiments herein, the crude oil is stepwise separated into at least a light fraction and a heavy fraction. Depending on the mass of the light and heavy fractions, they are sent to one of three upgrading operations, including a fixed bed hydroconversion unit, a fluidized catalytic conversion unit, or a resid hydrocracking unit that may utilize an ebullated bed reactor. The product from the upgrading operation may be used as a feed to a steam cracker.

A process and system for converting a high-pour-point organic feedstock to an upgraded product that exhibits good low-temperature properties (cloud point, pour point, and viscosity) and improved transportability. The high-efficiency process includes a continuous-flow, high-rate hydrothermal reactor system and integrated separation systems that result in low complexity, small footprint, high energy efficiency, and high yields of high-quality upgraded product. The system is specifically desirable for use in converting waxy feedstocks, such as yellow and black wax petroleum crudes and wax from the Fischer-Tropsch (FT) process, into upgraded crude that exhibits a high diesel fraction and, correspondingly, low vacuum gas oil (VGO) fraction.

Processes herein may be used to thermally crack various hydrocarbon feeds, and may eliminate the refinery altogether while making the crude to chemicals process very flexible in terms of crude. In embodiments herein, crude is progressively separated into at least light and heavy fractions. Depending on the quality of the light and heavy fractions, these are routed to one of three upgrading operations, including a fixed bed hydroconversion unit, a fluidized catalytic conversion unit, or a residue hydrocracking unit that may utilize an ebullated bed reactor. Products from the upgrading operations may be used as feed to a steam cracker.

A processing facility is provided, the processing facility including an asphaltene and metals (AM) removal system configured to process a feed stream to produce a power generation stream, a hydroprocessing feed stream, and an asphaltene stream. The power generation system is supplied with the power generation feed stream. The hydroprocessing system is configured to process the hydroprocessing feed stream to form a gas stream and a liquid stream. The hydrogen production system is configured to produce hydrogen, carbon monoxide, and carbon dioxide from the gas feed stream. The carbon dioxide conversion system is configured to produce synthetic hydrocarbons from carbon dioxide, and the cracking system is configured to process the liquid feed stream.