US20140360922A1 - Producing improved upgraded heavy oil - Google Patents
Producing improved upgraded heavy oil Download PDFInfo
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- US20140360922A1 US20140360922A1 US14/296,192 US201414296192A US2014360922A1 US 20140360922 A1 US20140360922 A1 US 20140360922A1 US 201414296192 A US201414296192 A US 201414296192A US 2014360922 A1 US2014360922 A1 US 2014360922A1
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- resid
- naphtha
- clean
- percent
- asphaltenes
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- 239000000295 fuel oil Substances 0.000 title description 10
- 238000000034 method Methods 0.000 claims abstract description 50
- 239000007787 solid Substances 0.000 claims abstract description 26
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 21
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 21
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000009835 boiling Methods 0.000 claims abstract description 14
- 238000001556 precipitation Methods 0.000 claims abstract description 11
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- 230000005484 gravity Effects 0.000 claims description 8
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 7
- 238000004517 catalytic hydrocracking Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 3
- 239000000047 product Substances 0.000 description 41
- 230000008569 process Effects 0.000 description 17
- 239000000203 mixture Substances 0.000 description 15
- 239000002904 solvent Substances 0.000 description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- 238000002156 mixing Methods 0.000 description 7
- 125000004432 carbon atom Chemical group C* 0.000 description 6
- 239000010779 crude oil Substances 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical class CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000004821 distillation Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
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- 230000003197 catalytic effect Effects 0.000 description 3
- 239000003498 natural gas condensate Substances 0.000 description 3
- -1 transition metal salt Chemical class 0.000 description 3
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- GDOPTJXRTPNYNR-UHFFFAOYSA-N methylcyclopentane Chemical compound CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical class CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
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- DALDUXIBIKGWTK-UHFFFAOYSA-N benzene;toluene Chemical compound C1=CC=CC=C1.CC1=CC=CC=C1 DALDUXIBIKGWTK-UHFFFAOYSA-N 0.000 description 1
- 235000013844 butane Nutrition 0.000 description 1
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- 239000003085 diluting agent Substances 0.000 description 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000010747 number 6 fuel oil Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G67/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only
- C10G67/02—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
Definitions
- Heavy oils produced from, for example, the Athabasca region in northern Alberta may be upgraded by, for example, a resid hydrocracking process such as “LCFining” so that the product may be sold to refiners on a basis similar to crude oils.
- the produced oils are refered to as “Syn Crude”.
- the product may be sold in the broader market for crude oils. This results in better utilization of existing capital investments and improves profitability for both the upstream heavy oil producers and the refiners.
- the goal of this upgrading is therefore to provide a product that is similar to crude oils and at a minimum, meet specifications to be accepted by pipelines.
- the amount of upgrading, or the severity of the upgrader is dictated by the asphaltene content of the upgraded heavy oil.
- Other characteristics of the upgraded heavy oil will determine the value of the upgraded product.
- One of these characteristic is the amount of solids in the upgraded heavy oil. Solids in the upgraded oil decrease the value of the upgraded oil because of a tendency for the solids to foul heat exchangers and furnaces or become deposits on catalysts beds.
- Crudes are often not solely the products of an upgrader, but a combination of the heavier portion of the upgrader product, along with a portion of naphtha diluted bitumen that has not been upgraded, and other steams such as depropanizer bottoms (mixtures of hydrocarbons containing four or five carbon atoms), to result in a product that meets pipeline specifications and can be marketed on a basis similar to crude oil.
- Depropanizer bottoms may be a naphtha boiling range material produced as a product of the upgrader such as a hydrocracker.
- 7,799,206 discloses a method to produce stable pipelineable blend from heavy residue for a catalytic hydroconversion process operating at a relatively high conversion rate by blending the heavy residue with virgin bitumen.
- the product from an upgrader being operated at high conversion rates would not meet pipeline specifications because the remaining asphaltenes in the product tend to precipitate.
- Blending the upgrader product with untreated bitumen is more economical that upgrading the whole volume to a lower conversion, and can result in a pipeline transportable product.
- U.S. Pat. No. 8,075,763 suggests a method to improve stability of aged crude oil to permit blending with lighter components without precipitation of asphaltenes by blending the aged crude with a phenol resin. It is also suggested that solids may be removed from the treated aged crude oil, and that the solid removal could be by filtration. The treated aged crude could be used, for example, as a bunker fuel, a fuel oil, or blending component therefore.
- U.S. Pat. No. 7,223,331 suggests a method for settling suspended finely divided inorganic solid particles from a hydrocarbon slurry using a hydroxy-terminated polyoxyalkylate additive and a polymer.
- the additive and polymer are added to the slurry in the range of 300-10,000 ppm and achieve solid removal over 50%.
- U.S. Pat. No. 4,572,777 discloses a method to produce a bitumen product having a low solids content by combining a tar sand with a solvent such that up to 25 percent of the bitumen remains undissolved, and separating the solids from the solution of solvent and dissolved bitumen is recovered.
- U.S. Pat. No. 6,059,957 suggests a process to convert heavy hydrocarbon into lighter product by using soluble transition metal salt and synthesis gas including soot particles and other impurities, e.g., silica fines, iron oxides. Such a process is reported to reduce sediment formation in the oil.
- a method is provided to produce a clean resid from a heavy hydrocarbon, the method comprising the steps of: feeding a heavy hydrocarbon to a conversion unit to convert at least a portion of the heavy hydrocarbon to lighter products and producing a resid, the resid comprising at least ten percent by volume of components having true boiling points greater than 380° C.
- the conversion unit and further comprising at least some asphaltenes ; contacting the resid with a naphtha to produce a mixed naphtha and resid, the naphtha comprising paraffin having from four to twelve carbons, the ratio of naphtha to resid high enough to result in precipitation of at least a portion of the asphaltenes in the resid; and separating a reject stream comprising asphaltenes and at least some solids from the resid to form a clean resid.
- the naphtha is preferably a light naphtha having greater than eighty percent by weight of the naphtha having true boiling point less than the boiling point of benzene.
- the weight ratio of naphtha combined with the resid may be between about 0.5 and 3. This amount of light naphtha may result in precipitation of less than about twenty percent by weight of the asphaltenes present in the resid, but removal of more than fifty percent weight of solids as indicated by the ash content of the resid. Reduction of the solids content of the resid significantly improves the fouling characteristics of the resid, and therefore renders the resid a much more desirable feedstock for refining.
- Blending of the clean resid of the present invention with untreated heavy hydrocarbon and naphtha may result in an advantageous marketable product.
- the product could contain a more severely hydrocracked residual, and less naphtha then a similar blend using residual not treated by the present process.
- the FIGURE is a process flow diagram for one embodiment of the present invention.
- a heavy hydrocarbon feed steam, 110 which could be a bitumen or diluted bitumen, is feed to an upgrader 101 .
- the heavy hydrocarbon may have a specific gravity of 0.90 to, for example, 1.07 and could contain above 10% by weight components having a true boiling point above 380° C., or in other embodiments, more than 50 percent by weight components having a true boiling point above 380° C.
- the heavy hydrocarbon stream could be a vacuum flasher resid stream, or bitumen.
- the bitumen may have been produced from oil sands by a froth treatment process such as the process disclosed in U.S. Pat. No.
- bitumen could also be produced from an insitu process such as cyclic steam injection or SAGD, or other improvements thereof such as solvent assisted SAGD.
- Diluted bitumen may be the bitumen, further comprising from one to thirty five percent by volume of naphtha, natural gas condensate or other hydrocarbon stream used, for example, to render the bitumen transportable by pipelines.
- the upgrader 101 may be a hydrocracker, fluid catalytic cracker, or a thermal cracker.
- the upgrader When the upgrader is a hydrocracker, it may be a LCFining or H-Oil.
- a hydrocracker such as a LCFining or H-Oil process may operate at 40 to 85 percent conversion with conversion defined as the percent by weight conversion of 380° C. and heavier true boiling point components to products with true boiling points less than 380° C. These processes produce fine solid particles as a result of, for example, attrition of catalyst particles and production of coke. These solid fines remain in the residual liquid streams after distillation of the upgraded bitumen, and are concentrated in the resid.
- Thermal crackers may operate at conversions as low as ten to fifteen percent, and fluid catalytic crackers may operate at conversions as high as ninety eight percent.
- the upgrader preferably operates at a conversion in excess of 80 percent, with conversion, or within a range of 60 to 98 percent.
- Reactor products from the upgrader reactor pass through a series of separators and heat exchangers to provide recycle hydrogen, and an unstablized liquid product 111 that is then fractionated by conventional distillation into products having desired boiling ranges in fractionators 102 .
- the fractionator 102 is shown as one unit, it is to be understood that economical separation of the reactor products into maketable or further upgradable products may be accomplished in different known ways by one or more fractionators, fractionators with side draws and side draw strippers, vacuum fractionators, and/or separators.
- Fractionator 102 produces a resid 112 and at least one stream containing light products 113 .
- the stream containing light products 113 may then be, for example, fractionated into produced naphtha 115 and a light ends 114 in a depropanizer 103 .
- the depropanizer could remove most of the propane and lighter components from the stream containing light products, or it could be designed to remove butanes and lighter, or pentanes and lighter, depending on the desired products.
- the naphtha 115 could contain products having, for example, four to twelve carbon atoms each, four to eight carbon atoms each, or five to nine carbon atoms each.
- the resid stream 112 contains the unconverted bitumen having a true boiling point of 380° C. and greater, and also could contain lighter components such as gas oil or kerosene distillation range products depending on the distillation process utilized, and depending on the sharpness of the separations achieved in the fractionators 102 .
- the resid 112 is feed to a mixer 104 where it is combined with naphtha 117 .
- the naphtha 117 could be, for example, depropanizer bottoms, or it could be imported naphtha 116 from a source other than the upgrader products.
- the imported naphtha could comprise stabilized or unstabilized natural gas condensate.
- the naphtha may contain at least thirty percent by weight paraffinic hydrocarbons.
- the paraffinic hydrocarbons may contain between four and twelve carbon atoms, or between five and eight carbon atoms.
- the naphtha could be a mixture containing at least ninety percent by weight of five and six carbon atom paraffins.
- the naphtha could contain at least twenty percent by weight pentane.
- the naphtha preferably contains less than about fifty percent by weight aromatics and more preferably less than about five percent by weight aromatics.
- the amount of naphtha needed to be effective may depend on the composition of the naphtha, but general, a volume ratio of naphtha to bitumen may be between about 0.1 and 6 or between about 0.5 and 3.
- a weight ratio of between about 0.5 to 3 of naphtha to resid may be used.
- the ratio of naphtha to resid should be sufficient, considering the composition of the naphtha, to result in precipitation of at least some asphaltenes.
- the tendency of asphaltenes to precipitate is indicated by the P-value of the mixture.
- the P-Value is the measured ratio between the peptizing power, or available aromaticity, and the flocculation ratio, which is the aromaticity required to keep the asphaltenes in solution.
- the P-value test is described in the paper “Developments in Fuel Oil Blending” presented by F. G. A. van den Berg at the 7th International Conference on Stability and Handling of Liquid Fuels in Graz, Austria, 24-29 Sep., 2000 (IASH-2000), the disclosure of which is incorporated herein by reference.
- a P-value less than 1 indicates that asphaltenes are subject to precipitation. Sufficient naphtha is added combined with the resid to result in the P-value of the resulting mixture to be one or less. This results in precipitation of asphaltenes.
- Mixer 104 may be a static mixer, a pump, or any know means to create contact between two fluids.
- the mixed naphtha and resid 119 is then separated by separator 105 to a clean resid 121 and a reject stream 120 .
- the reject stream may contain mineral solids, coke particles and asphaltenes along with along with some resid.
- the reject stream may contain at least fifty percent of the ash in the resid, or greater than eighty percent of the mineral solids from the original resid, as indicated by the ash content of the two streams.
- the clean resid may contain less than about 0.2 percent by weight ash.
- the reject stream may contain more than five percent of the asphaltenes from the resid, but sufficient removal of solids may be accomplished with removal of less than twenty percent of the ashpaltenes present in the resid. In one embodiment, between one and ten percent of the ashpaltenes are removed by the present invention. This level of asphaltene removal may be effective to result in a twenty percent, or a fifty percent reduction of the ash content of the resid. Although decreasing the asphaltenes content of the resid increases the value of the resid, a significant benefit of the present process is reduction of the solids content of the stream.
- Clean resid may be produced that contain having, for example, ash content of less than 0.05 percent as measured by ASTM D-473.
- the mixer 104 and separator 105 may be combined in one unit operation where the naphtha and resid are contacted and then separated, or a system similar to know solvent deasphalting processes such as the processes disclosed in WO/2007/001706, which disclosure is incorporated herein by reference, may be utilized.
- Separator 105 may be a centrifuge, cyclone or hydroclone, or may be a settler such as a parallel plate separator or a gravity settler.
- a filter could also be utilized. Any means known to be effective for removal of solids from fluids may be utilized. If a centrifuge is used, it may be a centrifuge which is capable of applying at least 100 times the acceleration of gavity (100 g forces). The settler could be accomplished in a gravity settling vessel. The separation of the reject stream from the mixed naphtha and hydrocracked resid could beaccomplished at a temperature of between 20° C. and 300° C., or between 50° C. and 150° C.
- naphtha could be removed from the clean hydrocracked resid by vacuum distillation or by flashing off naphtha in naphtha removal vessel 106 to provide a removed naphtha 122 and a clean solvent-free resid 123 .
- Removed naphtha 122 could be recycled to naphtha 117 , or could be produced as a naphtha product. This could be desirable if it is desired to use a higher ratio of naphtha 117 to hydrocracked resid 112 than what would be necessary to obtain an on-specification marketable product. Removal of some naphtha may also result in a more stable mixture with respect to asphaltene precipitation, than the clean hydrocracked resid.
- the clean resid 121 , or clean solvent-free resid 123 could be combined with raw bitumen, diluted bitumen, natural gas condensate, and/or middle distillates 124 and/or additional naphtha, 126 to form a marketable product 125 .
- the marketable product may meet relevant pipeline specifications and has low fowling characteristics.
- the ratio of clean resid to bitumen that has not been hydrocracked may be between 0.1 and 10, or in another embodiment, between about 0.5 and 5.
- a light naphtha stream as naphtha 117 comprising more than eighty percent by weight components lighter than benzene could reduce the amount of naphtha necessary to cause precipitation of ashpaltenes.
- a heavier naphtha comprising less than twenty percent by weight of components lighter than benzene, could be used as diluent to produce marketable product.
- benzene toluene and other aromatics may be included in this heavy naphtha, it could enable production of a marketable product having a higher P-value, or reduce the amount of other components needed to result in an acceptable marketable product.
- the light hydrocracked stream contained about 6.7 weight percent normal butane, 20.1 weight percent by weight isopentane, 2.6 percent by weight normal pentane, 2.4 percent by weight cyclopentane, 1.5 percen tby weight nomal hexane, 3 percent by weight methylcyclopentane, 0.8 percen tby weight benzene, 2.4 percent by weight cyclohexane, and 9.2 percent by weight six carbon number isoparaffins.
- the light hydrocarbon mixture contined about 42 percent by weight components having true boiling points less than about 65° C., and about 1.3 percent by weight components having a true boiling point abouve 200° C.
- the light hydrocracked stream had an API gravity of 72.
- the light hydrocracked stream was mixed with the heavy resid at ratios of, 0.25:1 and 0.45:1 (vol/vol).
- the two resultant light/heavy blends (samples 2 and 3 respectively) were separated to two phases by gravity by letting the samples sit at ambient temperature for 48 hours.
- the lighter phase was decanted and then centrifuged at 20000 rpm for fifteen minutes (samples 4 and 5).
- the bottom phase (samples 6 and 7) contained more heavy materials, e.g., asphaltene.
- the top phases contain less heavy materials.
- a hydrocracked heavy resid was blended with a commercial light paraffinic solvent of C4-C7 at weight ratios of 0.5, 1.0, 1.5 and 2.0 of solvent to resid.
- the resultant blends were allowed to gravity separate for about 48 hours under ambient conditions.
- a top phase was decanted and processed in a rotary evaporator at about 110° C. to remove the light paraffinic solvent.
- These samples were then tested for various properties as listed in Table 2.
- the total solids (determined by ASTM D7840) were reduced substantially from 0.21wt % in the feed sample to less than 0.01wt % in the products.
- the asphaltene content was significantly lower in the decanted material as opposed to the initial resid.
- the initial resid contained 9.2wt % asphaltenes and the decanted products contained about 1-2wt % asphaltenes.
- the asphaltene stability (P-value) increased from 1.05 for the feed to 1.18-2.24, depending on the solvent ratio. The higher the solvent/feed ratio, the more stability improvement was detected in the product, and the more reduction in asphaltene content as well as the total solid content. Furthermore, density and viscosity, albeit with only one data set for the 0.5 S/F sample, were also found to improve (decrease). Properties for the heavy hydrocracked resid and resid after having been combined with the solvent, decanted, and solvent removed, are shown in Table 2.
Abstract
A method is provided to produce a clean resid from a heavy hydrocarbon, the method including the steps of: feeding a heavy hydrocarbon to a conversion unit to convert at least a portion of the heavy hydrocarbon to lighter products and producing a resid, the resid comprising at least ten percent by weight components having true boiling points greater than 380° C. and further comprising at least some asphaltenes; contacting the resid with a naphtha to produce a mixed naphtha and resid, the naphtha comprising paraffin having from four to twelve carbons, the ratio of naphtha to resid high enough to result in precipitation of at least a portion of the asphaltenes in the resid; and separating a reject stream comprising asphaltenes and at least some solids from the resid to form a clean resid.
Description
- This application claims benefit of U.S. Provisional Application No. 61/831,815, filed on Jun. 6, 2013, which is incorporated herein by reference.
- Heavy oils produced from, for example, the Athabasca region in northern Alberta, may be upgraded by, for example, a resid hydrocracking process such as “LCFining” so that the product may be sold to refiners on a basis similar to crude oils. The produced oils are refered to as “Syn Crude”. Thus, rather than the market for the heavy oils being restricted to purchasers with facilities specifically built to upgrade such heavy oils, the product may be sold in the broader market for crude oils. This results in better utilization of existing capital investments and improves profitability for both the upstream heavy oil producers and the refiners. The goal of this upgrading is therefore to provide a product that is similar to crude oils and at a minimum, meet specifications to be accepted by pipelines. So typically, the amount of upgrading, or the severity of the upgrader is dictated by the asphaltene content of the upgraded heavy oil. Other characteristics of the upgraded heavy oil will determine the value of the upgraded product. One of these characteristic is the amount of solids in the upgraded heavy oil. Solids in the upgraded oil decrease the value of the upgraded oil because of a tendency for the solids to foul heat exchangers and furnaces or become deposits on catalysts beds.
- Syn Crudes are often not solely the products of an upgrader, but a combination of the heavier portion of the upgrader product, along with a portion of naphtha diluted bitumen that has not been upgraded, and other steams such as depropanizer bottoms (mixtures of hydrocarbons containing four or five carbon atoms), to result in a product that meets pipeline specifications and can be marketed on a basis similar to crude oil. Depropanizer bottoms may be a naphtha boiling range material produced as a product of the upgrader such as a hydrocracker. U.S. Pat. No. 7,799,206 discloses a method to produce stable pipelineable blend from heavy residue for a catalytic hydroconversion process operating at a relatively high conversion rate by blending the heavy residue with virgin bitumen. The product from an upgrader being operated at high conversion rates would not meet pipeline specifications because the remaining asphaltenes in the product tend to precipitate. Blending the upgrader product with untreated bitumen is more economical that upgrading the whole volume to a lower conversion, and can result in a pipeline transportable product.
- U.S. Pat. No. 8,075,763 suggests a method to improve stability of aged crude oil to permit blending with lighter components without precipitation of asphaltenes by blending the aged crude with a phenol resin. It is also suggested that solids may be removed from the treated aged crude oil, and that the solid removal could be by filtration. The treated aged crude could be used, for example, as a bunker fuel, a fuel oil, or blending component therefore.
- U.S. Pat. No. 7,223,331 suggests a method for settling suspended finely divided inorganic solid particles from a hydrocarbon slurry using a hydroxy-terminated polyoxyalkylate additive and a polymer. The additive and polymer are added to the slurry in the range of 300-10,000 ppm and achieve solid removal over 50%.
- U.S. Pat. No. 4,572,777 discloses a method to produce a bitumen product having a low solids content by combining a tar sand with a solvent such that up to 25 percent of the bitumen remains undissolved, and separating the solids from the solution of solvent and dissolved bitumen is recovered.
- U.S. Pat. No. 6,059,957 suggests a process to convert heavy hydrocarbon into lighter product by using soluble transition metal salt and synthesis gas including soot particles and other impurities, e.g., silica fines, iron oxides. Such a process is reported to reduce sediment formation in the oil.
- A method is provided to produce a clean resid from a heavy hydrocarbon, the method comprising the steps of: feeding a heavy hydrocarbon to a conversion unit to convert at least a portion of the heavy hydrocarbon to lighter products and producing a resid, the resid comprising at least ten percent by volume of components having true boiling points greater than 380° C. produced by the conversion unit, and further comprising at least some asphaltenes ; contacting the resid with a naphtha to produce a mixed naphtha and resid, the naphtha comprising paraffin having from four to twelve carbons, the ratio of naphtha to resid high enough to result in precipitation of at least a portion of the asphaltenes in the resid; and separating a reject stream comprising asphaltenes and at least some solids from the resid to form a clean resid.
- The naphtha is preferably a light naphtha having greater than eighty percent by weight of the naphtha having true boiling point less than the boiling point of benzene. The weight ratio of naphtha combined with the resid may be between about 0.5 and 3. This amount of light naphtha may result in precipitation of less than about twenty percent by weight of the asphaltenes present in the resid, but removal of more than fifty percent weight of solids as indicated by the ash content of the resid. Reduction of the solids content of the resid significantly improves the fouling characteristics of the resid, and therefore renders the resid a much more desirable feedstock for refining.
- Blending of the clean resid of the present invention with untreated heavy hydrocarbon and naphtha may result in an advantageous marketable product. The product could contain a more severely hydrocracked residual, and less naphtha then a similar blend using residual not treated by the present process.
- The FIGURE is a process flow diagram for one embodiment of the present invention.
- Referring now to
FIG. 1 , a system according to the present invention is shown. A heavy hydrocarbon feed steam, 110, which could be a bitumen or diluted bitumen, is feed to anupgrader 101. The heavy hydrocarbon may have a specific gravity of 0.90 to, for example, 1.07 and could contain above 10% by weight components having a true boiling point above 380° C., or in other embodiments, more than 50 percent by weight components having a true boiling point above 380° C. The heavy hydrocarbon stream could be a vacuum flasher resid stream, or bitumen. The bitumen may have been produced from oil sands by a froth treatment process such as the process disclosed in U.S. Pat. No. 5,236,577, or a paraffinic solvent froth process such as the process disclosed in Canadian patent 2,232,929, the disclosure of which is incorporated herein by reference. The bitumen could also be produced from an insitu process such as cyclic steam injection or SAGD, or other improvements thereof such as solvent assisted SAGD. Diluted bitumen may be the bitumen, further comprising from one to thirty five percent by volume of naphtha, natural gas condensate or other hydrocarbon stream used, for example, to render the bitumen transportable by pipelines. - The
upgrader 101 may be a hydrocracker, fluid catalytic cracker, or a thermal cracker. When the upgrader is a hydrocracker, it may be a LCFining or H-Oil. A hydrocracker such as a LCFining or H-Oil process may operate at 40 to 85 percent conversion with conversion defined as the percent by weight conversion of 380° C. and heavier true boiling point components to products with true boiling points less than 380° C. These processes produce fine solid particles as a result of, for example, attrition of catalyst particles and production of coke. These solid fines remain in the residual liquid streams after distillation of the upgraded bitumen, and are concentrated in the resid. Thermal crackers may operate at conversions as low as ten to fifteen percent, and fluid catalytic crackers may operate at conversions as high as ninety eight percent. The upgrader preferably operates at a conversion in excess of 80 percent, with conversion, or within a range of 60 to 98 percent. - Reactor products from the upgrader reactor pass through a series of separators and heat exchangers to provide recycle hydrogen, and an unstablized
liquid product 111 that is then fractionated by conventional distillation into products having desired boiling ranges infractionators 102. Although thefractionator 102 is shown as one unit, it is to be understood that economical separation of the reactor products into maketable or further upgradable products may be accomplished in different known ways by one or more fractionators, fractionators with side draws and side draw strippers, vacuum fractionators, and/or separators.Fractionator 102 produces aresid 112 and at least one stream containinglight products 113. The stream containinglight products 113 may then be, for example, fractionated into produced naphtha 115 and a light ends 114 in a depropanizer 103. The depropanizer could remove most of the propane and lighter components from the stream containing light products, or it could be designed to remove butanes and lighter, or pentanes and lighter, depending on the desired products. The naphtha 115 could contain products having, for example, four to twelve carbon atoms each, four to eight carbon atoms each, or five to nine carbon atoms each. - The
resid stream 112 contains the unconverted bitumen having a true boiling point of 380° C. and greater, and also could contain lighter components such as gas oil or kerosene distillation range products depending on the distillation process utilized, and depending on the sharpness of the separations achieved in thefractionators 102. - The
resid 112 is feed to amixer 104 where it is combined withnaphtha 117. Thenaphtha 117 could be, for example, depropanizer bottoms, or it could be imported naphtha 116 from a source other than the upgrader products. For example, the imported naphtha could comprise stabilized or unstabilized natural gas condensate. The naphtha may contain at least thirty percent by weight paraffinic hydrocarbons. The paraffinic hydrocarbons may contain between four and twelve carbon atoms, or between five and eight carbon atoms. The naphtha could be a mixture containing at least ninety percent by weight of five and six carbon atom paraffins. For example, the naphtha could contain at least twenty percent by weight pentane. The naphtha preferably contains less than about fifty percent by weight aromatics and more preferably less than about five percent by weight aromatics. The amount of naphtha needed to be effective may depend on the composition of the naphtha, but general, a volume ratio of naphtha to bitumen may be between about 0.1 and 6 or between about 0.5 and 3. When the naphtha is a mixture of mostly pentanes and hexanes with greater than about 85 percent by weight paraffins, a weight ratio of between about 0.5 to 3 of naphtha to resid may be used. The ratio of naphtha to resid should be sufficient, considering the composition of the naphtha, to result in precipitation of at least some asphaltenes. Preferably at least five but not more than about fifty percent by weight of the ashphaltenes in the resid stream are caused to precipitate as a result of the combination of the resid stream with the naphtha. - The tendency of asphaltenes to precipitate is indicated by the P-value of the mixture. The P-Value is the measured ratio between the peptizing power, or available aromaticity, and the flocculation ratio, which is the aromaticity required to keep the asphaltenes in solution. The P-value test is described in the paper “Developments in Fuel Oil Blending” presented by F. G. A. van den Berg at the 7th International Conference on Stability and Handling of Liquid Fuels in Graz, Austria, 24-29 Sep., 2000 (IASH-2000), the disclosure of which is incorporated herein by reference. A P-value less than 1 indicates that asphaltenes are subject to precipitation. Sufficient naphtha is added combined with the resid to result in the P-value of the resulting mixture to be one or less. This results in precipitation of asphaltenes.
-
Mixer 104 may be a static mixer, a pump, or any know means to create contact between two fluids. The mixed naphtha andresid 119 is then separated byseparator 105 to a clean resid 121 and a reject stream 120. The reject stream may contain mineral solids, coke particles and asphaltenes along with along with some resid. The reject stream may contain at least fifty percent of the ash in the resid, or greater than eighty percent of the mineral solids from the original resid, as indicated by the ash content of the two streams. The clean resid may contain less than about 0.2 percent by weight ash. The reject stream may contain more than five percent of the asphaltenes from the resid, but sufficient removal of solids may be accomplished with removal of less than twenty percent of the ashpaltenes present in the resid. In one embodiment, between one and ten percent of the ashpaltenes are removed by the present invention. This level of asphaltene removal may be effective to result in a twenty percent, or a fifty percent reduction of the ash content of the resid. Although decreasing the asphaltenes content of the resid increases the value of the resid, a significant benefit of the present process is reduction of the solids content of the stream. It has been found that precipitation of ashphaltenes from this stream according to the present invention enhances agglomeration of the solids with ashphaltenes and enables removal of solids. Clean resid may be produced that contain having, for example, ash content of less than 0.05 percent as measured by ASTM D-473. - The
mixer 104 andseparator 105 may be combined in one unit operation where the naphtha and resid are contacted and then separated, or a system similar to know solvent deasphalting processes such as the processes disclosed in WO/2007/001706, which disclosure is incorporated herein by reference, may be utilized. -
Separator 105 may be a centrifuge, cyclone or hydroclone, or may be a settler such as a parallel plate separator or a gravity settler. A filter could also be utilized. Any means known to be effective for removal of solids from fluids may be utilized. If a centrifuge is used, it may be a centrifuge which is capable of applying at least 100 times the acceleration of gavity (100 g forces). The settler could be accomplished in a gravity settling vessel. The separation of the reject stream from the mixed naphtha and hydrocracked resid could beaccomplished at a temperature of between 20° C. and 300° C., or between 50° C. and 150° C. - Optionally, naphtha could be removed from the clean hydrocracked resid by vacuum distillation or by flashing off naphtha in
naphtha removal vessel 106 to provide a removed naphtha 122 and a clean solvent-free resid 123. Removed naphtha 122 could be recycled tonaphtha 117, or could be produced as a naphtha product. This could be desirable if it is desired to use a higher ratio ofnaphtha 117 tohydrocracked resid 112 than what would be necessary to obtain an on-specification marketable product. Removal of some naphtha may also result in a more stable mixture with respect to asphaltene precipitation, than the clean hydrocracked resid. - The clean resid 121, or clean solvent-
free resid 123 could be combined with raw bitumen, diluted bitumen, natural gas condensate, and/ormiddle distillates 124 and/or additional naphtha, 126 to form amarketable product 125. The marketable product may meet relevant pipeline specifications and has low fowling characteristics. The ratio of clean resid to bitumen that has not been hydrocracked may be between 0.1 and 10, or in another embodiment, between about 0.5 and 5. - Use of a light naphtha stream as
naphtha 117, comprising more than eighty percent by weight components lighter than benzene could reduce the amount of naphtha necessary to cause precipitation of ashpaltenes. After removal of the naphtha from the clean hydrocracked resid, a heavier naphtha, comprising less than twenty percent by weight of components lighter than benzene, could be used as diluent to produce marketable product. - Because benzene toluene and other aromatics may be included in this heavy naphtha, it could enable production of a marketable product having a higher P-value, or reduce the amount of other components needed to result in an acceptable marketable product.
- A hydrocracked heavy resid (sample 1) and a light hydrocracked stream, produced from the same hydrocracking process, were mixed in a capped container at ambient condition for around 2 hours until a homogenous blend was reached. The light hydrocracked stream contained about 6.7 weight percent normal butane, 20.1 weight percent by weight isopentane, 2.6 percent by weight normal pentane, 2.4 percent by weight cyclopentane, 1.5 percen tby weight nomal hexane, 3 percent by weight methylcyclopentane, 0.8 percen tby weight benzene, 2.4 percent by weight cyclohexane, and 9.2 percent by weight six carbon number isoparaffins. The light hydrocarbon mixture contined about 42 percent by weight components having true boiling points less than about 65° C., and about 1.3 percent by weight components having a true boiling point abouve 200° C. The light hydrocracked stream had an API gravity of 72. The light hydrocracked stream was mixed with the heavy resid at ratios of, 0.25:1 and 0.45:1 (vol/vol). The two resultant light/heavy blends (samples 2 and 3 respectively) were separated to two phases by gravity by letting the samples sit at ambient temperature for 48 hours. The lighter phase was decanted and then centrifuged at 20000 rpm for fifteen minutes (samples 4 and 5). The bottom phase (samples 6 and 7) contained more heavy materials, e.g., asphaltene. The top phases contain less heavy materials.
- Characterization of the two separated product samples from each blend were carried out in order to determine the product properties as specified in the results Table. It is quite clear that there is only a small reduction of asphaltene, e.g., from 8.39wt % and 7.78wt %, in samples 2 and 3, to 6.86wt % and 5.68wt %, in samples 5 and 6, respectively. Similarly, densities of the corresponding samples were also slightly decreased. The solid content in the samples are found to drop significantly. For example, toluene insolubles dropped from 0.24wt % to 0.05wt % for sample 4 and from 0.29wt % to 0.02wt % for sample 5. As a result, there was a significant increase of toluene insolubles in the bottom samples, samples 6 and 7. Furthermore, ash content in the samples dropped significantly. Properties of the streams are shown in Table 1.
-
TABLE 1 ASTM Test Property method 1 2 3 4 5 6 7 Density D-4052 Kg/m3 1030.7 987.5 954.7 984.1 947 Viscosity D-445 cSt 1638 8143 1114 at 40° C. P value D-7060 1.01 .97 .96 1.04 1.17 nC7 D-3279 Wt % 7.28 8.39 7.78 6.86 5.68 26.39 insoluble Toluene D-473 Wt % 0.18 0.24 0.29 0.05 0.02 1.5 2.92 insoluble Ash D482 Wt % 0.62 0.058 0.056 0.029 0.010 0.244 0.413 - A hydrocracked heavy resid, was blended with a commercial light paraffinic solvent of C4-C7 at weight ratios of 0.5, 1.0, 1.5 and 2.0 of solvent to resid. The resultant blends were allowed to gravity separate for about 48 hours under ambient conditions. A top phase was decanted and processed in a rotary evaporator at about 110° C. to remove the light paraffinic solvent. These samples were then tested for various properties as listed in Table 2. The total solids (determined by ASTM D7840) were reduced substantially from 0.21wt % in the feed sample to less than 0.01wt % in the products. The asphaltene content was significantly lower in the decanted material as opposed to the initial resid. The initial resid contained 9.2wt % asphaltenes and the decanted products contained about 1-2wt % asphaltenes. The asphaltene stability (P-value) increased from 1.05 for the feed to 1.18-2.24, depending on the solvent ratio. The higher the solvent/feed ratio, the more stability improvement was detected in the product, and the more reduction in asphaltene content as well as the total solid content. Furthermore, density and viscosity, albeit with only one data set for the 0.5 S/F sample, were also found to improve (decrease). Properties for the heavy hydrocracked resid and resid after having been combined with the solvent, decanted, and solvent removed, are shown in Table 2.
-
TABLE 2 ASTM Solvent to heavy Test Heavy resid weight ratio Property method resid 0.5 1.0 1.5 2.0 Total D-7840 Wt % 0.21 <0.01 <0.01 <0.01 <0.01 solids nC7 D-3279 Wt % 9.2 7.04 4.72 1.17 2.19 Insoluble p-value D-7060 1.05 1.18 1.41 2.24 1.55 Viscosity D-445 cSt 189.7 133.7 at 100° C.
Claims (22)
1. A method to produce a clean resid from a heavy hydrocarbon, the method comprising the steps of:
feeding a heavy hydrocarbon to a conversion unit to convert at least a portion of the heavy hydrocarbon to lighter products and producing a resid, the resid comprising at least ten percent by weight components having true boiling points greater than 380° C., and the resid further comprising at least some asphaltenes;
contacting the resid with a naphtha to produce a mixed naphtha and resid, the naphtha comprising paraffin having from four to twelve carbons, the ratio of naphtha to resid high enough to result in precipitation of at least a portion of the asphaltenes in the resid; and
separating a reject stream comprising asphaltenes and at least some solids from the resid to form a clean resid.
2. The method of claim 1 , wherein the heavy hydrocarbon comprises bitumen and the conversion unit is a hydrocracker.
3. The method of claim 1 , wherein subsequent to separation of the reject stream from the resid, at least a portion of the naphthais removed from the clean resid.
4. The method of claim 3 , wherein at least a portion of the removed naphthais recycled as naphtha.
5. The method of claim 1 , wherein the naphtha comprises at least twenty percent by volume of pentane.
6. The method of claim 2 , wherein the hydrocracker is an ebulating bed hydrocracker.
7. The method of claim 1 , wherein the clean resid comprises less than about 0.2 percent by weight of ash as determined by ASTM D-473.
8. The method of claim 1 , wherein the volume ratio of naphtha to resid is between 0.1 and 6.
9. The method of claim 8 , wherein the volume ratio of naphtha to resid is between 0.5 and 3.
10. The method of claim 1 , further comprising the step of combining the clean resid stream with bitumen that has not been subjected to hydrocracking to create a marketable product.
11. The method of claim 10 , wherein the ratio of clean resid to bitumen that has not been subjected to hydrocracking is between about 0.1 and about 10,
12. The method of claim 11 , wherein the ratio of clean resid to bitumen that has not been subjected to hydrocracking is between 0.5 and 5.
13. The method of claim 1 , wherein the amount of ash in the clean resid is less than 50 percent of the total ash contained in the resid.
14. The method of claim 13 , wherein the amount of ash in the clean resid is less than 20 percent of the total ash contained in the resid.
15. The method of claim 1 , wherein the amount of asphaltenes separated from the resid is less than about twenty percent of the asphaltenes present in the resid stream.
16. The method of claim 15 , wherein the amount of asphaltenes separated from the resid is between one percent and ten percent of the asphaltenes present in the resid stream.
17. The method of claim 1 , wherein separating the reject stream from the mixed naphtha and resid to form a clean resid is accomplished by a centrifuge.
18. The method of claim 17 , wherein the centrifuge applies at an acceleration of at least 100 times the acceleration of gravity.
19. The method of claim 1 , wherein separating the reject stream from the mixed naphtha and resid to form a clean resid is accomplished by a by gravity settling in a settling vessel.
20. The method of claim 1 , wherein separating the reject stream from the mixed naphtha and resid to form a clean resid is accomplished at a temperature between 20° C. and 300° C.
21. The method of claim 1 , wherein separating the reject stream from the mixed naphtha and resid to form a clean resid is accomplished at a temperature between 30° C. and 200° C.
22. The method of claim 1 , wherein separating the reject stream from the mixed naphtha and resid to form a clean resid is accomplished at a temperature between 50° C. and 150° C.
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4211633A (en) * | 1978-01-30 | 1980-07-08 | Energy Modification, Inc. | Separation of asphaltic materials from heptane soluble components in liquified solid hydrocarbonaceous extracts |
US5069775A (en) * | 1990-05-07 | 1991-12-03 | Atlantic Richfield Company | Heavy crude upgrading using remote natural gas |
US20100329935A1 (en) * | 2009-06-25 | 2010-12-30 | Mcgehee James F | Apparatus for Separating Pitch from Slurry Hydrocracked Vacuum Gas Oil |
US20110142729A1 (en) * | 2009-12-11 | 2011-06-16 | Uop Llc | Apparatus for producing hydrocarbon fuel |
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US4732664A (en) * | 1984-11-26 | 1988-03-22 | Intevep, S.A. | Process for solid separation from hydroprocessing liquid product |
US8597497B2 (en) * | 2010-01-21 | 2013-12-03 | Shell Oil Company | Process for treating a hydrocarbon-containing feed |
FR2964387A1 (en) * | 2010-09-07 | 2012-03-09 | IFP Energies Nouvelles | METHOD OF CONVERTING RESIDUE INTEGRATING A DISASPHALTAGE STEP AND A HYDROCONVERSION STEP WITH RECYCLE OF DESASPHALTEE OIL |
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2014
- 2014-06-04 WO PCT/US2014/040876 patent/WO2014197570A1/en active Application Filing
- 2014-06-04 US US14/296,192 patent/US20140360922A1/en not_active Abandoned
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4211633A (en) * | 1978-01-30 | 1980-07-08 | Energy Modification, Inc. | Separation of asphaltic materials from heptane soluble components in liquified solid hydrocarbonaceous extracts |
US5069775A (en) * | 1990-05-07 | 1991-12-03 | Atlantic Richfield Company | Heavy crude upgrading using remote natural gas |
US20100329935A1 (en) * | 2009-06-25 | 2010-12-30 | Mcgehee James F | Apparatus for Separating Pitch from Slurry Hydrocracked Vacuum Gas Oil |
US20110142729A1 (en) * | 2009-12-11 | 2011-06-16 | Uop Llc | Apparatus for producing hydrocarbon fuel |
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