Optimal refinery steam cracker complex only mcdermott can provide all technologies and offer overall complex guarantees chemical yields, onstream factor. Resid hydrocracking better than delayed coking in case studies. New hydrocracking technology efficiently cracks heavy end cuts. With this technology, preem will produce 100% ultralow sulfur products from their vacuum residue. Ebullatedbed residue hydrocracking can obtain conversion levels equivalent to or even higher than delayed coking. This high conversion slurry hydrocracking technology combines elements of several commercial. Solvent deasphalting similar to residue hydrotreating, solvent deasphalting applications have been limited. A large range of residue upgrading technologies are available, including carbon rejection technologies such as coking, visbreaking, residue fcc, gasification, 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. The resulting heavy unconverted oil product after quenching then flows downward through the residue hydrotreating catalyst bed where it contacts hydrogen flowing upward and. The homogeneous dispersed catalysts are divided into watersoluble dispersed catalysts and oil.
Resid hydrocracking better than delayed coking in case. 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. The refinery last year embarked on the first phase of a twophase project to upgrade its facilities to more efficiently meet european standards. 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. Two separate mechanistic kinetic models have been developed for the hydrocracking of complex feedstocks. 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.
The second one addresses specifically the hydrocracking of longchain paraffins, but at a more fundamental level as compared to the first one. The vacuum gas oils from the lcmax unit are sent to an isocracking unit for conversion to heavy naphtha and diesel. Yasen nichev planningoperations support sme hewlett. Lukoil neftochim burgas refinery modernisation hydrocarbons. The first phase, which covers construction of the heavy. Heavy residue hydrocracking complex first phase lukoil neftochim bourgas. Hydrocracking kinetics of gudao residue in the presence of. The homogeneous dispersed catalysts are divided into watersoluble dispersed catalysts. Compared with traditional technologies, the present refineries face several challenges because of the presence of crude oils characterized by high content of aromatics, acids, metals and nitrogen, therefore putting more pressure on the hydrocracking and. 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. These valves have been supplied for critical hipps application in one of the shell operating units in the middle east. Lukoil secures 420m for bulgarian refinery upgrades. The change of the weight percentages of the six pseudocomponents, i. The thermal hydrocracking of mexican heavy fuel oil was studied at 1200 psia and different reaction temperatures 370, 380, 390 and 400c.
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. Us9359917b2 gasification of heavy residue with solid. These products can be monetized directly as fuels, or. Dcs controller heavy residue hydrocracking complex first phase lukoil. This high conversion slurry hydrocracking technology. This research aims at developing a discrete kinetic model of the hydrotreating process of a crude oil residue based on experiments. 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. 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. 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. Recent advances in heavy oil hydroprocessing technologies. 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. Atmospheric or vacuum residue can be converted into valuable distillates using high reaction temperature, high hydrogen pressure and low contact time hydroprocessing units. The second process hydrocracks atmospheric residue in a slurry reactor with a portion of the residue oil recycled to the hydrocracking reactor. Also available are hydrogen addition technologies, such as fixedbedmoving bed atmospheric and vacuum residue hydrotreating, movingbedebullating residue hydrocracking and.
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. However, it produces a lowtomedium quality liquid residue product which is usually only suitable for fuel oil applications. The resid hydrocracker upgrades vacuum resid through cracking while injecting hydrogen. The feed studies for the project were performed by technip, who is also responsible for the engineering, procurement and construction epc for phase 1 of the heavy residue hydrocracking complex. Catalysts employed in residue hydrocracking tolerate the metal impurities and the asphaltenes present in the feedstocks. The first model is targeted for the hydrocracking of vacuum gas 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. Ebullatedbed residue hydrocracking is a wellproven technology that creates value from even the most challenging residue feeds. Bitumen derived naphtha and gas oils from the crude unit are also charged to the single stage hydrotreating section of this plant.
Analysis of the thermal hydrocracking of heavy fuel oil. See the complete profile on linkedin and discover yasens connections and jobs at similar companies. 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. Lukoil opens heavy residue processing complex in bulgaria. 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. Hydrocracking is widely used in petroleum refining to convert heavy oil. Hydrocracking is an important source of diesel and jet fuel. 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. This provides a basis to develop a betterperformance catalyst for heavy oil hydrocracking. These products can be monetized directly as fuels, or provide excellent petrochemical complex feedstock. Processes and catalysts for hydrocracking of heavy oil and. 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. These feeds are of low quality due to presence of impurities like ccr, asphaltenes.
The hydrocracking process depends on the nature of the feedstock and the relative rates of the two competing reactions, hydrogenation and cracking. The experimental conditions varied in a wide range of temperature, pressure, and. Milko dimitrov dcs controller heavy residue hydrocracking. It consists of a main unit for hydrocracking of vacuum residue with capacity of 2. Sicef spa, in january 2012 to build the heavy residue hydrocracking complex. Burgasnefteproekt eood, oao lukoils engineering subsidiary, has let a contract to technip, paris, for the first phase of a heavy residue hydrocracking complex to be built at the 115,240 bcd. This yields a high volume of highquality diesel and kerosene product. 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. Samson ringo is proud to announce that has recently received approval after successful completion of the qualification process based on shell mesc spe 77300, spe 77300a and iso 52082015. The process consists of causing feed to react with. Lukoil neftochim burgas ad, a subsidiary of russias oao lukoil, has commissioned a heavyresidue hydrocracking complex at its 9. Various residue hydrocracking processes are now commercially employed using fixed bed, moving bed or ebullated bed reactors. Establishing an understanding of the key catalyst properties that influence catalyst performance in hydrocracking of heavy residue is important. The slurry phase hydrocracking of vacuum residue was investigated by kim et al9.
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. Hydrocracking is an important source of diesel and jet fuel source. 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. Texaco tstar process for ebullated bed hydrotreating. 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. 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.
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. 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. A mathematical model of a refinery defines the process capacity and product. Catalysts for hydroprocessing of heavy oils and petroleum. 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. Conversion of heavy residues processing of light crude, even in a complex refinery with fcc, hydrocracking etc. 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. A process for upgrading residuum hydrocarbons and decreasing tendency of the resulting products toward asphaltenic sediment formation in downstream processes is disclosed. Process engineer hengli petrochemical international pte.
Clg lcslurry technology selected for residue conversion. Besides, the yields of aromatic hydrocarbon and naph. Slurryphase hydrocracking of heavy oil and model reactant. Sicef spa, in january 2012 to build the heavyresidue hydrocracking complex. 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. Catalysts for hydroprocessing of heavy oils and petroleum residues. The catalyst system in the twostage hydrocracking unit is designed for maximum conversion to heavy naphtha while still retaining the capability to produce a. 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.
Synthesis of noble molybdenum and tungsten complexes for hydrocracking catalyst of heavy oil. Sulfides of mo and w are usually used, and ni and co are used in promoting species components in the petroleum industry. Mo, ni, co, and w are the common established transition metals used as the active ingredient in catalyst for hydrocracking of heavy residue. However, i would like to mention here a project at nizhnekamsk refinery to illustrate that alternative deep conversion processes are also considered and selected. Heavy oil upgrading environment market and technology. Uops uniflex process for proven residue upgrading achieves higher. Catalysts for slurryphase hydrocracking of heavy oil have. Clg lcslurry technology selected for residue conversion complex. Dcs controller heavy residue hydrocracking complex first phase. Hydrocracking is an important source of diesel and jet.
For example in russia at the nizhnekamsk refinery the heavy residue deep conversion complex is based on a slurry hydrocracker the vcc process. Uops uniflex mc process is a slurry hydrocracking process which achieves the. 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 resid hydrocracker upgrades vacuum resid through cracking while injecting. 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. Catalysts for slurryphase hydrocracking of heavy oil have undergone two development phases, that is, heterogeneous solid powder catalysts and homogeneous dispersed catalysts. General contractor for the turn key construction of the plant civil, electromechanical, plant protection. Impact of unconverted residue recycling on slurryphase. For hydroprocessing residues, amorphous hydrocracking catalysts as well as specially. Residue hydrocracking solutions for refinery sustainability. The uniflex mc process converts vacuum residue and other heavy feedstocks into. Case studies 114,894 bytes to highlight the advantages of two popular vacuum residue upgrading routes, coking and. Processes and catalysts for hydrocracking of heavy oil and residues. 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.
Technip has subcontracted sices spa italy and gp group to carry out the construction and assembly works. 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. Heavy oil or residue feeds usually have a fair amount of metals. In addition, the demand for clean transportation fuels is growing, with countries such as china and india taking the lead. View yasen nichevs profile on linkedin, the worlds largest professional community.