Heavy residue hydrocracking complex

A hydrocracking unit, or hydrocracker, takes gas oil, which is heavier and has a higher boiling range than distillate fuel oil, and cracks the heavy molecules into distillate and gasoline in the presence of hydrogen and a catalyst. However, it produces a lowtomedium quality liquid residue product which is usually only suitable for fuel oil applications. The homogeneous dispersed catalysts are divided into watersoluble dispersed catalysts. It is similar to the more common gasoil hydrocracker, except that it is capable of running a heavier feed and is more expensive to build and complex to operate. Hydrocracking is a catalytic chemical process used in petroleum refineries for converting the highboiling constituent hydrocarbons in petroleum crude oils to more valuable lowerboiling products such as gasoline, kerosene, jet fuel and diesel oil. The first phase, which covers construction of the heavy. In addition, the demand for clean transportation fuels is growing, with countries such as china and india taking the lead. See the complete profile on linkedin and discover yasens connections and jobs at similar companies.

Milko dimitrov dcs controller heavy residue hydrocracking. The experimental conditions varied in a wide range of temperature, pressure, and. Lukoil secures 420m for bulgarian refinery upgrades. The slurry phase hydrocracking of vacuum residue was investigated by kim et al9. Case studies 114,894 bytes to highlight the advantages of two popular vacuum residue upgrading routes, coking and.

The resid hydrocracker upgrades vacuum resid through cracking while injecting hydrogen. Us9359917b2 gasification of heavy residue with solid. This high conversion slurry hydrocracking technology combines elements of several commercial. Hydrocracking kinetics of gudao residue in the presence of.

Slurryphase hydrocracking of heavy oil and model reactant. Hydrocracking is an important source of diesel and jet fuel source. Market pressures driving residue upgrading solutions to high conversion residue hydrocracking is best fitted to meet all requirements d naphtha diesel vgo coke, uco coking rds lcfining residue hydrocracking maximizes cracker feed stocks coke, foeb heavy fuel oil crude ulsfo diesel gasoline px propylene ethylene price transportation fuels. Solvent deasphalting similar to residue hydrotreating, solvent deasphalting applications have been limited. Impact of unconverted residue recycling on slurryphase. The homogeneous dispersed catalysts are divided into watersoluble dispersed catalysts and oil. The resid hydrocracker upgrades vacuum resid through cracking while injecting. This process can reduce the level of the impurities present in the feed and provide additional quantities of high quality feedstocks for fcc fluid catalytic cracking and rfcc resid fluid catalytic cracking processes. Analysis of the thermal hydrocracking of heavy fuel oil. Establishing an understanding of the key catalyst properties that influence catalyst performance in hydrocracking of heavy residue is important. These products can be monetized directly as fuels, or provide excellent petrochemical complex feedstock. Lukoil neftochim burgas refinery modernisation hydrocarbons.

The catalyst system in the twostage hydrocracking unit is designed for maximum conversion to heavy naphtha while still retaining the capability to produce a significant quantity of diesel. Sulfides of mo and w are usually used, and ni and co are used in promoting species components in the petroleum industry. This research aims at developing a discrete kinetic model of the hydrotreating process of a crude oil residue based on experiments. Hydrocracking is an important source of diesel and jet fuel. Heavy aromatic feedstock is converted into lighter products under a wide range of very high pressures 1,0002,000 psi and fairly high temperatures 7501,500 f, 400800 c, in the presence. Ebullatedbed residue hydrocracking can obtain conversion levels equivalent to or even higher than delayed coking. However, i would like to mention here a project at nizhnekamsk refinery to illustrate that alternative deep conversion processes are also considered and selected. Resid hydrocracking better than delayed coking in case studies. In distillate hydrocracking, the supports are mainly alumina or other micropore material, while hydrocracking of residue requires mainly acidic or mesoporous supports because the residues have a high molecular weight and size. Clg lcslurry technology selected for residue conversion. View yasen nichevs profile on linkedin, the worlds largest professional community. Nonconventional feeds such as vacuum residue vr and heavy oils have shown an alternate source for the production of high value transportation fuels, as it is abundantly available. In addition approximately 75% of sulfur, 80% of the metals, 60% of the ccr and 65% of the asphaltenes in the residue feed is removed in this hydrocracking stage.

A mathematical model of a refinery defines the process capacity and product. Hydrocracking is an important source of diesel and jet. Atmospheric or vacuum residue can be converted into valuable distillates using high reaction temperature, high hydrogen pressure and low contact time hydroprocessing units. This yields a high volume of highquality diesel and kerosene product. Various residue hydrocracking processes are now commercially employed using fixed bed, moving bed or ebullated bed reactors.

Feb 16, 2017 in addition approximately 75% of sulfur, 80% of the metals, 60% of the ccr and 65% of the asphaltenes in the residue feed is removed in this hydrocracking stage. Residue hydrocracking solutions for refinery sustainability. Hydrocracking is widely used in petroleum refining to convert heavy oil. These events along with the stricter environmental regulations set up the evolution of the end of the century refinery or heavy ends conversion refinery which has focused on efficient processing of heavy crudes as well as the heavy ends of crude oils to produce higher yields of distillate fuels. Hydrocracking operating conditions atmospheric residue ar and vacuum residue vr are the most difficult feed to convert catalytically because they contain in a concentrated form most of the impurities contained in the crude oil and among them, asphaltens and metals essentially nickel and vanadium. This high conversion slurry hydrocracking technology.

Mo, ni, co, and w are the common established transition metals used as the active ingredient in catalyst for hydrocracking of heavy residue. The kinetics of the catalytic hydrocracking of gudao vacuum residue in the presence of dispersedphase mo catalyst was studied over the temperature range of 390435degreesc. Conversion of heavy residues processing of light crude, even in a complex refinery with fcc, hydrocracking etc. Also available are hydrogen addition technologies, such as fixedbedmoving bed atmospheric and vacuum residue hydrotreating, movingbedebullating residue hydrocracking and. Clgs innovative lcslurry technology upgrades as much of the heavy oil as possible to sulfurfree gasoline, diesel while also meeting the new rules for sulfur content in bunker fuel. Two separate mechanistic kinetic models have been developed for the hydrocracking of complex feedstocks. Sicef spa, in january 2012 to build the heavyresidue hydrocracking complex. The vacuum gas oils from the lcmax unit are sent to an isocracking unit for conversion to heavy naphtha and diesel. Optimal refinery steam cracker complex only mcdermott can provide all technologies and offer overall complex guarantees chemical yields, onstream factor. These feeds are of low quality due to presence of impurities like ccr, asphaltenes. The primary component of the modernisation project is the construction of the heavy oil vacuum residue hydrocracking complex, the largest of its kind in eastern europe, which is expected to come online in early 2015. Dcs controller heavy residue hydrocracking complex first phase lukoil. For example in russia at the nizhnekamsk refinery the heavy residue deep conversion complex is based on a slurry hydrocracker the vcc process.

Clg lcslurry technology selected for residue conversion complex. More specifically, embodiments disclosed herein relate to solvent deasphalting of a residuum hydrocarbon feedstock, processing the resulting deasphalted oil in a residue desulfurization unit and a residue hydrocracking unit. Catalysts for hydroprocessing of heavy oils and petroleum residues. Clgs lcslurry technology upgrades as much of the heavy oil as possible to sulfurfree gasoline and diesel while also meeting the new rules for sulfur content in bunker fuel. Ebullatedbed residue hydrocracking is a wellproven technology that creates value from even the most challenging residue feeds. Sicef spa, in january 2012 to build the heavy residue hydrocracking complex. Texaco tstar process for ebullated bed hydrotreating. The process consists of causing feed to react with. The second one addresses specifically the hydrocracking of longchain paraffins, but at a more fundamental level as compared to the first one. Synthesis of noble molybdenum and tungsten complexes for hydrocracking catalyst of heavy oil. Processes and catalysts for hydrocracking of heavy oil and. With this technology, preem will produce 100% ultralow sulfur products from their vacuum residue. Resid hydrocracking better than delayed coking in case.

A process for upgrading residuum hydrocarbons and decreasing tendency of the resulting products toward asphaltenic sediment formation in downstream processes is disclosed. The resulting heavy unconverted oil product after quenching then flows downward through the residue hydrotreating catalyst bed where it contacts hydrogen flowing upward and. Uops uniflex process for proven residue upgrading achieves higher. The catalyst system in the twostage hydrocracking unit is designed for maximum conversion to heavy naphtha while still retaining the capability to produce a. A large range of residue upgrading technologies are available, including carbon rejection technologies such as coking, visbreaking, residue fcc, gasification, etc. The refinery last year embarked on the first phase of a twophase project to upgrade its facilities to more efficiently meet european standards. Catalysts for hydroprocessing of heavy oils and petroleum. Recent advances in heavy oil hydroprocessing technologies. The hydrocracking process depends on the nature of the feedstock and the relative rates of the two competing reactions, hydrogenation and cracking.

Experimental raw material karamay vacuum gas oil klvgo, karamay vacuum residue klvr and venezuelan atmospheric residue var were taken as feedstock oils for thermal hydrocrack. Heavy oil upgrading environment market and technology. Heavy oil or residue feeds usually have a fair amount of metals. Catalysts for slurryphase hydrocracking of heavy oil have.

Thus, various experiments were conducted in a continuous flow trickle bed reactor over a temperature range of 653693 k, liquid hourly space velocity of 0. Lukoil neftochim burgas ad, a subsidiary of russias oao lukoil, has commissioned a heavyresidue hydrocracking complex at its 9. Dcs controller heavy residue hydrocracking complex first phase. General contractor for the turn key construction of the plant civil, electromechanical, plant protection. The first model is targeted for the hydrocracking of vacuum gas oil. New hydrocracking technology efficiently cracks heavy end cuts. It consists of a main unit for hydrocracking of vacuum residue with capacity of 2. Besides, the yields of aromatic hydrocarbon and naph. Aug 07, 2014 more specifically, embodiments disclosed herein relate to solvent deasphalting of a residuum hydrocarbon feedstock, processing the resulting deasphalted oil in a residue desulfurization unit and a residue hydrocracking unit, and processing the pitch from the solvent deasphalting in a separate residue hydrocracking unit. Processes and catalysts for hydrocracking of heavy oil and residues. Uops uniflex mc process is a slurry hydrocracking process which achieves the highest conversion and produces the maximum naphtha and diesel yield compared to other residue conversion technologies. For hydroprocessing residues, amorphous hydrocracking catalysts as well as specially. The change of the weight percentages of the six pseudocomponents, i.

Heavy residue hydrocracking complex first phase lukoil neftochim bourgas. Hydrocracking processes distillate hydrocracking is a refining process for conversion of heavy gas oils and heavy diesels or similar boilingrange heavy distillates into light distillates naphtha, kerosene, diesel, etc. The overall objective of this project is the three phase development of an early entrance coproduction plant eecp which uses petroleum coke to produce at least one product from at least two of the following three categories. Technip has subcontracted sices spa italy and gp group to carry out the construction and assembly works. Hydrocracking of heavy oils and residua december 2008 hydrocracking of heavy oils and residua is increasingly import to refiners due to increased global production of heavy and extra heavy crude oils coupled with increased demand worldwide for low sulfur middle distillates and residual fuel oils. The president of lukoil vagit alekperov and the prime minister of the republic of bulgaria boyko borisov took part in the official opening ceremony of the heavy residue processing complex, built on the territory of the refinery of lukoil neftohim burgas ad. Lukoil opens heavy residue processing complex in bulgaria. Jun 16, 2016 clgs lcslurry technology upgrades as much of the heavy oil as possible to sulfurfree gasoline and diesel while also meeting the new rules for sulfur content in bunker fuel. The second process hydrocracks atmospheric residue in a slurry reactor with a portion of the residue oil recycled to the hydrocracking reactor. The hoil rc rc stands for resid cracking process uses ebullatedbed hydrocracking technology to process heavy feedstock residues atmospheric and vacuum residue with high metals, sulfur, nitrogen, asphaltenes and solid contents. Yasen nichev planningoperations support sme hewlett. Process engineer hengli petrochemical international pte. A costeffective solution for the disposal of heavy residue bottoms recovered from a slurry hydrocracking process that include solid heterogeneous catalyst particles is provided by their introduction into a membrane wall gasification reactor in the form of a flowable slurry to produce a synthesis gas and, optionally, subjecting the synthesis gas to a watergas shift reaction to produce a more.

Catalysts for slurryphase hydrocracking of heavy oil have undergone two development phases, that is, heterogeneous solid powder catalysts and homogeneous dispersed catalysts. Catalysts employed in residue hydrocracking tolerate the metal impurities and the asphaltenes present in the feedstocks. Vacuum residue is used as the raw material for coking, where again the extraction of produced lighter products gasolines, light gas oil and heavy gas oil which is used as raw material for hydrocracking, while coke is used as a raw material for an igcc. The uniflex mc process converts vacuum residue and other heavy feedstocks into. This provides a basis to develop a betterperformance catalyst for heavy oil hydrocracking. Residue hydrocracking process robust, costeffective solution for residue conversion introduction the uniflex mc process converts vacuum residue and other heavy feedstocks into highervalued distillable products.