US3257309A - Manufacture of petroleum coke - Google Patents

Manufacture of petroleum coke Download PDF

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Publication number
US3257309A
US3257309A US215813A US21581362A US3257309A US 3257309 A US3257309 A US 3257309A US 215813 A US215813 A US 215813A US 21581362 A US21581362 A US 21581362A US 3257309 A US3257309 A US 3257309A
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Prior art keywords
coke
fines
water
settling
basin
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US215813A
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English (en)
Inventor
Paul W Fauchier
John H Smith
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ConocoPhillips Co
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Continental Oil Co
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Application filed by Continental Oil Co filed Critical Continental Oil Co
Priority to US215813A priority Critical patent/US3257309A/en
Priority to GB25294/63A priority patent/GB1043734A/en
Priority to ES290521A priority patent/ES290521A1/es
Priority to DE19631471557 priority patent/DE1471557A1/de
Priority to NL63296454A priority patent/NL140752B/xx
Application granted granted Critical
Publication of US3257309A publication Critical patent/US3257309A/en
Priority to JP44085635A priority patent/JPS491601B1/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B33/00—Discharging devices; Coke guides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B55/00—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material

Definitions

  • the present invention relates to improvements in the method of handling raw coke fines produced during the manufacture of coke by a delayed coking process.
  • a petroleum fraction is heated to a temperature at which it will thermally decompose.
  • the oil is then fed before decomposition into a drum under conditions which prevent the oil from vaporizing until it has partialy decomposed.
  • This thermal decomposition produces a very heavy tar which undergoes additional decomposition, in so doing depositing a porous coke mass in the drum.
  • the drums When the drums are ultimately filled with raw coke, they are opened top and bottom, and the coke is removed by cutting it out with high velocity water jets. As the coke mixed with water falls from the coking drum, it is collected in a suitable collection means and then passed to subsequent treatment, which may include a calcining operation in which the raw coke is calcined by subjecting it to temperatures of about 2500 F.
  • the :mass of effluent discharged from delayed coking drums will generally comprise three major constituentsrelatively coarse particles of coke, coke fines, and water.
  • the water must be drained, decanted or, in some other manner, separated from the main body of coke before it is passed to storage and preparatory to subsequent processing.
  • the Water which is removed from the coarser particles of coke is, of course, contaminated with smaller particles or fines, and is unsuitable for discharge into public streams by virtue of pollution problems by such disposal.
  • considerable volumes of Water are utilized for removing the coke from the delayed coking drums, it is highly desirable that this water be conserved and recirculated to the decoking jets.
  • the fines are dropped to the bottom of the separator and are there accumulated prior to passing to a suitable fines storage container. It has been proposed to fluidize these fine-s with air and burn them as fuel in the calcining kiln. It has also been proposed to prepare a slurry of the fines in a suitable gas oil fraction and circulate such slurry to the delayed coking drums for admixture with the heavy petroleum residuum which is charged to the coking drums, wherein the fines are cemented into the new coke being produced in such manner that they lose their identity and are subsequently recovered as part of the main body of coke.
  • the present invention provides an improved method and apparatus for handling the eflluent which is discharged from the coking drums used in the delayed coking process.
  • the invention is particularly well adapted to use in a delayed coking process wherein the raw coke from the coking drums is subsequently passed through a calcining kiln after being retained temporarily in a storage facility, such as a coke storage silo.
  • the process achieve-s the major objectives of recovering coke fines from the recycle water and blending the recovered fines uniformly with the main body of coke in such a way that substantially improved economy in the over-all delayed coking process is achieved and the fines which are produced in such delayed coking process are dewatered in a manner which permits them to be more readily and effectively combined with the main body of coke.
  • the present invention contemplates improvements in the process for producing petroleum coke by subjecting a heavy petroleum residuum to delayed coking conditions in a coking drum and then removing the raw coke ifrom the drum by subjecting it to impact by high pressure water jets, which improvements are effected by gravitationally separating the slurry of water and coke fines resulting from the removal of coke from the coking drum by the high pressure water jets; pumping the slurry so separated into a settling basin; separating the water from the coke fines by gravitational filtration and decantation to leave a residue of moist, easily handled coke fines which may be recombined with the main body of coke and are not subject to atmospheric dissipation; and recirculating the water which is separated from the coke fines to the high pressure water jets used to remove the raw coke from the coke drums.
  • the moist fines which remain in the settling basin following the dewatering process may be recombined with the main body of coke in an evenly distributed manner so that the recombined lumps and fines are easily conveyed through conduits, silos, conveyors, etc. prior to subjecting such recombined coke particles to a calcining step.
  • the process as thus practiced results in the treatment of the coke fines in such manner that the fines are easily recombined in an evenly distributed manner with the main body of coke so that no fouling of lines or interference with subsequent processing of the coke occurs.
  • the process also permits the dewatering of the coke fines to be smoothly integrated with the cycle of operations normally conducted in producing coke by the delayed coking procedure.
  • the apparatus is included in and forms an integral part of a system which includes an inclined apron adjoining the delayed coking drums for receiving the raw coke effluent from the coking drums admixed with the water which is used to remove the coke from the drums; means for dragging the coke up the inclined apron for storage and draining; a collecting basin into which the water and coke fines drain; means for pumping the water and fines to settling basins; settling basins in which the fines settle from the water contained therein; means for dewatering said fines; means for cimbining the recovered coke fines uniformly with the main body of coke; and means for recirculating the water from the settling basin to the source of water used to remove the raw coke from the delayed coking drums.
  • two or more settling basins are employed and the water which is removed from the fines in such settling basins is discharged to a common sump from which it may be recirculated to the water jets.
  • the settling basins may alternately be filled and the fines therein dewatered so that substantially uninterrupted operation of the systems may be effected.
  • the location of the settling basin or basins relative to the apron which receives the efliuent from the coking drums and also the particular construction of the settling basin and the means provided for dewatering the coke fines therein are all salient features of the invention which take into account the characteristic water-retaining properties, as well as the porosity, of the coke fines and which achieve a dewatering of the fines in a highly efficient manner. It is also important that the apparatus be constructed to permit the depth of the bed of fines to be uniform across the settling basins so that the bed of fines remaining in the basins has a reasonably uniform moisture content.
  • An additional object of this invention is to provide a process and apparatus for recovering the wet coke fines resulting from the decoking of coke drums by means of high velocity jets of water, and for recombining said recovered coke fines with the main body of coke in an evenly-distributed manner.
  • a further object of the present invention is to provide a method for recovering, as useful, valuable product, the wet coke fines which would otherwise present a disposal and contamination problem in the operation of a delayed coking unit.
  • FIGURE 1 is a flow diagram schematically illustrating a system utilized for producing coke by the delayed coking process and serving to illustrate a typical environment in which the present invention may be advantageously employed.
  • FIGURE 2 is a somewhat diagrammatic illustration of the apparatus utilized in practicing the process of the present invention.
  • FIGURE 3 is a view in section taken along line 33 of FIGURE 2.
  • FIGURE 4 is a plan view if the settling basins which are utilized for dewatering the coke fines which are removed from the coking drums according to the process of the present invention, and showing the conveyor which is utilized to conduct the dewatered coke fines to the main conveyor where they are recombined with the large lumps or particles of coke. A portion of the conveyor for transferring the dewatered coke fines from the settling basins has been broken away to show the location of filtering means in the bottom of the settling basins.
  • FIGURE 5 is a view in elevation of the settling basins and the coke fines conveyor shown in FIGURE 4.
  • FIGURE'6 is a sectional View taken along line 66 of FIGURE 4 and illustrating the construction of the filtering means utilized in the settling basins of the present invention.
  • FIGURE 7 is a sectional view taken along line 7-7 of FIGURE 4.
  • FIGURE 8 is a detailed plan view showing the sump which is positioned between the two settling basins utilized in the invention, and illustrating details of construction of the means which are provided for dewatering the coke fines in each of the settling basins, and for removing the filtrate from the filtering means associated with each of the settling basins.
  • FIGURE 9 is a sectional view taken along line 99 of FIGURE 8 and showing, in addition, the manner in which the coke fines conveyor is positioned over the settling basins and sump.
  • FIGURE 1 is a schematic portrayal of a typical system which may be used for manufacturing petroleum coke by a delayed coking procedure.
  • the selection of a suitable charge stock for coking operations is well known in the art.
  • the principal stocks which are employed are high boiling virgin and cracked petroleum residua, such as: virgin reduced crude; bottoms from the vacuum distillation of reduced crudes, referred to as vacuum reduced residuum; Duosol extract; thermal tar; and other heavy residua. Blends of these materials are also often used to provide a feed which will yield a suitable coke having a sufficiently low sulphur content.
  • a heavy petroleum residuum prepared 'by appropriate fractionation of crude oil is passed from the fractionation tower (not shown) via line 10 to a suitable preheater 12.
  • the residuum is charged through line 14 to one or the other of the delayed coking drums 16 or 18.
  • the temperature of the residuum charged to the coke drums is from about 850 F. to 950 F.
  • a stream of vapor is normally recycled to the fractionator from the top of the coke drums at a temperature of about 830 F. and about 30 p.s.i.g. by way of the conduit 20.
  • the pressure in the coking drums 16 and 18 is maintained at from about 20 to p.s.i. and the drums are well insulated to minimize heat loss so that the reacti temperature lies between about 830 F. and 900 F.
  • the hot charge stock in the coking drums 16 and 18 decomposes over a period of several hours, liberating hydrocarbon vapors which continuously rise through the mass of material contained in the drums.
  • the first stages of thermal decomposition occurring in the charge stock within the coking drums reduce this oil to a very heavy tar or pitch which subsequently undergoes further decomposition into solid coke.
  • the ascending hydrocarbon vapors in the coking drums produce pores and channels in the coke through which the incoming oil from the furnace may pass.
  • the coke is cooled and is then removed from the drum by means of high impact producing water jets (not shown) which are directed from nozzles incorporated in special boring and cutting tools (not shown).
  • high impact producing water jets (not shown) which are directed from nozzles incorporated in special boring and cutting tools (not shown).
  • the lumps of coke which are broken free from the walls of the coke drum by the high impact water jets fall from the drum and are mechanically transferred to the drainage and storage apron 38. Water drains from the coke to collecting pit 42 containing a considerable amount of coke fines.
  • Coke passes downwardly from the housing 26 through the kiln 28 where it is calcined at a temperature of about 250-0 F. by contact with hot gases passing upwardly through the kiln and countercurrently to the flow of the coke.
  • the hot gases in the calcining kiln 28 are created partially by the combustion of fuel gas introduced at 29.
  • Primary and secondary sources of air are supplied through lines 29a and 29b, affording an excess of air over that required to combust the fuel gas introduced at 29.
  • the hot gases are also created by combustion of the volatile hydrocarbons from the raw coke with the excess air, although the combustion of such hydrocarbons can be reduced by fluidi-Zing a portion of the fines from cyclone separator 31 and burning such fluidized fines in the kiln 28 by introducing them into the firing hood along with the secondary source of air 29b. Although some of the fines which enter .the calcining kiln 28 with the larger particles of coke are consumed within the kiln, a substantial portion of the fines is not burned and calcined in the kiln along with the larger particles. The calcined coke with a certain amount of calcined fine material is collected in the firing hood 30 at the lower end of the kiln 28 and from the firing hood is conveyed to storage.
  • FIGURES 2 through 9 the coking drums 16 and 18 are shown positioned over one end of a large efiluent receiving apron 32.
  • the coke is removed from the drum by directing jets of water under high pressure against the coke inside the drum to abrade the coke and, by high impact, loosen it from the sides of the drum.
  • the high pressure water is effective to reduce the coke from a solid bed to a number of large chunks or lumps, and also results in the production of a substantial quantity of fines or very small particles.
  • the coke fines, coarser particles of coke and the water fall from the coke drum onto an inclined portion 34 of the apron 32 and then slide down the inclined portion 34 until the mass of material reaches the relatively level portion 36 of the apron.
  • a second and much larger inclined portion 38 which is flared transversely in the manner best illustrated in FIGURE 2.
  • a partition 40 Extending across the center of the inclined, flared portion 38 of the apron 32 and projecting vertically upward therefrom is a partition 40.
  • a suitable conveyor 42 Disposed at the end of the apron 32 opposite that end at which the coke drums 16 and 18 are located is a suitable conveyor 42 which moves transversely across the end of the apron 32 and functions to receive large lumps of coke from the apron in a manner hereinafter described.
  • this portion of the apron is slightly inclined transversely so that water (containing coke fines) may gravitate down the portion 36 of the apron into a collecting pit 37 which is positioned adjacent and slightly below the apron 32.
  • a pump 44 is positioned alongside the collecting pit 37 and functions to pump a mixture or slurry of coke fines and water from the collecting pit 37 into one of a pair of settling basins designated generally by reference characters 46 and 48.
  • a screen (not shown) may be positioned between portion 36 of apron 38 and pit 37, to prevent particles so large as to be detrimental to pump 44 from falling into the pit.
  • a suitable conduit system 50 having branch lines 50a and 50b is provided between the collecting pit 37 and each of the settling basins 46 and 48 to permit the slurry from the collecting pit to be pumped into either of the settling basins as desired.
  • a conveyor 52 is centrally positioned over the settling basins 46 and 48 and extends throughout the length thereof and terminates over the conveyor 42 which extends transversely across one end of the apron 32.
  • a sump 54 Positioned between and contiguous to the settling basins 46 and 48 is a sump 54 which functions to receive water removed from the coke fines located in the settling basins in a manner hereinafter described.
  • the water accumulating in the sump 54 is returned by a drain line 56 to a reservoir 58 which may be conveniently positioned alongside the apron 32, and is preferably pumped to storage tank 59, where the water is available for reuse in jetting the coke deposits from the coking drums 16 and 18.
  • pit 37 and reservoir 58 may be separated, it is convenient to place them adjacent one another and separated by a common wall 61.
  • Wall 61 may be provided with a valve for opening a connection between pit 37 and reservoir 58, so that if pump 44 breaks down, reservoir 58 can be used as a temporary fines settling basin.
  • each of the settling basins 46 and 48 is generally rectangular in configuration and the branches 50a and 50b of the conduit system 50 extend across the most distally located ends of each of the respective settling basins. At their proximal ends, each of the settling basins 46 and 48 is contiguous to, or joined to, the sump 54.
  • the transverse walls 60 of the sump 54 are of lesser height than the longitudinal and end 'walls of the settling basins 46 and 48 so that the sump Walls form weirs at the discharge ends of the settling basins.
  • a channelway 62 is formed in the bottom of each of the settling basins 46 and 48 and is best illustrated in FIGURE 6. Overlying the channelway 62 and supported in elongated recesses or grooves 64 which extend over the lengthof the settling basins 46 and 48 is a heavy metallic grate 66.' The grate 66 may be supported upon suitable angle iron strips 67 which are received in the recesses 64 formed in the concrete which constitutes the bottom of each of the settling basins 46 and 48. A screen 68 of relatively fine mesh is positioned on top of the grate 66 and a second grate 70 is then rested atop the screen. The depth of the recess 64 formed in the bottom of the settling basins 46 and 48 is such that the upper surface of the top grate 70 is approximately flush or even with the bottom of the settling basins.
  • the bottoms of the settling basins 46 and 48 are preferably sloped inwardly toward the grates 70 so that water will drain toward the center of the basins.
  • the grates 66 and 70 and the screen 68 which is interposed between the grates constitute a filter element which functions to filter water from the coke fines placed in the settling basins 46 and 48. The manner of functioning of the grates 66 and 70 and the screen 68 will be described in greater detail hereinafter.
  • the channelways 62 extend for the full length of the settling basins 46 and 48.
  • the channelways 62 do not, however, pass through the transverse walls 60 of the sump 54, but, instead, terminate on the side of such walls inside the respective settling basin.
  • each of the settling basins 46 and 48 At longitudinally spaced intervals along the length of each of the settling basins 46 and 48 and positioned at opposite sides thereof are a plurality of supporting members 72 which are preferably constructed of concrete and which are utilized to support or form the base for a plurality of vertically extending stanchions 74 which are best illustrated in FIGURES 5 and 9.
  • the stanchions 74 support transverse beams 76 from which is suspended in any suitable manner the conveyor 52 which is utilized to move dewatered fines from the settling basins 46 and 48 to the conveyor 42 in a manner hereinafter described.
  • FIGURE 7 The Way in which the branches 50a and 50b of the conduit system 50 are constructed is best illustrated in FIGURE 7. It will be perceived in referring to this figure of the drawings that the branch 50b of the conduit system 50 extends completely across the settling basin 48 in a transverse direction and is provided with a series of radial slots 80 which are positioned on the periphery of the branch 50b of the conduit so that material is ejected from that conduit through the slots in a downward direction.
  • the slurry of water and coke fines entering the settling basin 48 from the branch 50b of the conduit system 50 will flow along the length of the settling basin from one end thereof to the other.
  • a settled bed of coke fines will be established in the basin which has a gradient or slope extending from the end of the basin at which the slurry is introduced to the end of the basin at which the walls 60 of the sump are located.
  • the arrangement of the branch 50a in the settling basin 46 is identical to that for branch 50b which is illustrated in FIGURE 7 and functions in the same manner.
  • the details of construction of the sump 54 and the means which are provided for transferring water from the settling basins 46 and 48 into the sump 54 are best illustrated in FIGURES 8 and 9.
  • the sump S4 is generally rectangular in horizontal cross section and is provided with a bottom which is sloped downwardly from the walls of the sump toward the middle in order to permit the water accumulated therein to be removed by the drain pipe 56.
  • Extending through each of the transverse sump walls 60 which form weirs at the ends of the settling basins 46 and 48 are a pair of decanting conduits or swing pipes indicated generally by reference character 84.
  • the decanting conduits 84 each comprise a short tubular section 86 which extends through the respective wall 60 of the sump 54 at a point above the uppermost grate '70.
  • a longer tubular member 88 is swingably connected to the tubular section 86 through a suitable swivel joint 90 so that the free end of the tubular section 88 may be swung downwardly from an elevated status to a position near the bottom of the respective settling basin in the manner shown in FIGURE 9.
  • conduit or L-shaped swing pipe designated generally by reference character 92 which includes a short tubular section 94 passing through the respective wall 60 of the sump into the adjacent channelway 62. Swingably connected to the short tubular section 94 through a joint 96 similar to the joints 98 used in the decanting conduits 84 is a longer tubular section 98.
  • the tubular section 98 may, like the sections 88 of the decanting conduits, be swung from a vertical or upper position to a lower position in which its free end is in contact with the bottom of the sump 54 in the manner shown in FIGURE 9.
  • the coking drums 16 and 18 are alternately used so that while one of the drums is being discharged of its raw coke contents, the decomposition of the heavy residuum in the second coke drum is taking place with the formation of coke resulting.
  • the raw coke efiiuent mixed with water from one of the drums is discharged therefrom, it falls down the inclined portion 34 of the apron 32 and comes to rest .on the transversely sloped portion 36. It is then moved by the use of a suitable device, such as a Sauermann dragline up the inclined portion 38 of the apron 32.
  • the teeth of the dragline bucket are such that some of the fines will drain with the water down the inclined portion 38 back onto the portion 36 of the apron.
  • the coarser particles of coke are moved up the apron toward the conveyor 42 which extends transversely across the apron at its end opposite the end at which the coke drums 16 and 18 are located.
  • the partition 40 is provided so that coke of one grade may be pulled by the dragline up the apron 32 on one side thereof, and the coke of the other grade may be pulled up the other side of the apron with the partition 40 serving to maintain separation between the piles of coke which accumulate at the upper end of the inclined portion 38 of the apron.
  • water and coke fines from the mass of effluent materials discharged from the coke drums 16 and 18 drain back into the collecting pit 42 by virtue of the incline of the portions 36 and 38 of the apron 32.
  • the material which accumulates in the collecting pit 37 is a slurry-like material and is pumpable when a suitable slurry pump 44 is employed.
  • the slurry of fines and water from the collecting pit 37 is pumped through the conduit system 50 by the pump 44 and is discharged at one or the other of the branches 50a and 50b of the conduit system. Normally, one of the branches 5041 or will be utilized in correspondence with the discharge of effluent from one of the coking drums 16 or 18.
  • the utilization of the branches 50a and 50b of the conduit system 50 may be correlated to the alternate utilization of the drums 16 and 18 so that one of the settling basins 46 or 48 may be employed for achieving thedewatering of the coke fines from one of the coking drums, while the other settling basin is receiving the slurry pumped from the collecting pit 37 at the time the other coking drum istbeing discharged onto the apron 32.
  • the branches 50a and 50b of the conduit system 50 are elfective to discharge the Water and coke fines slurry into the settling basins 46 and 48 through the radial slots,
  • the bed of coke fines which settles to the bottom of the settling basins will be sloped or inclined from the end at which the slurry is discharged from the branches 50a and 50b of the conduit system 50 to the ends of the basins adjacent the Walls 60 of the sump 54 which form weirs over which water may flow from the settling basins into the sump.
  • each of the settling basins 46 and 48 is of a size such that the normal volume of slurry which is introduced to the settling basins during a complete decoking operation from one of the drums 16 or 18 will be greater than the capacity of the settling basin, so that much of the water in the slurry Will flow over the sump walls 60 at one end of the settling basins.
  • the conduit 92 remains in the upward position.
  • the advantage of this procedure is that water will be prevented from draining rapidly through screen 68 and into sump 54, whereby the larger particles of fines will have time to settle out on the screen to provide in effect a filter cake for more efficient filtering of the fines of smaller particle size from the water.
  • the design and construction of the filtering system is an important feature of the invention in that the employment of the grates 66 and 70 having relatively large porosity as compared to the screen 68 provides. the structural strength necessary to permit workmen to stand upon the grates at a subsequent point in the process of the invention without damaging the grates or breaking or bending the screen 68.
  • the lowermost grate 66 provides a rigid support for the screen 68 to prevent it from becoming weighted down with coke fines to the extent that it sags into the channelway 62 in the bottom of the settling basins 46 and 48.
  • the uppermost grate 70 functions to permit workmen to stand on the screen 68 and shovel coke fines therefrom without damaging it.
  • the porosity or mesh size of the screen 68 is preferably such that very few of the coke fines can pass therethrough. This mesh sizevis possible in the separation of the coke fines and water because of the relatively great porosity of the coke fines themselves.
  • a suitable screen 68 comprises a center screen of 40 mesh sandwiched between two 4-mesh screens.
  • the upper 4-mesh screen serves to filter out the coarser particles of coke fines and to protect the 40- mesh center screen.
  • the lower 4-mesh screen protects the 40-mesh screen.
  • the supernatant Water may be decanted from over the settled bed of coke fines by using the decanting conduits 84.
  • the upper end of the long tubular section 88 of the decanting conduits 84 may be swung to a position at which the end is submerged below the surface of the supernatant water in the respective settling basin. In this position, the clearest or most fine-free water in the settling basins may be decanted through the decanting conduits 84 into the sump 54.
  • This particular mode of operation of the decanting conduits 84 also permits the Water tobe decanted from the settling basins with a minimum of turbulence generated by flow of the water into the upper end of the long tubular section 88 of the decanting conduits 84.
  • the upper end of the elongated section 88 of the decanting conduit 84 may be lowered further with respect to the walls of the settling basin so that more of the water may be removed from the settling basin into the sump 54.
  • the decanting process may be continued until the free end of the decanting conduits 84 inside the settling basins 46 and 48 approach the interface between the bed of settled coke fines and the supernatant water.
  • conduit means under said filtering means for transferring to said sump water passed through said filtering means
  • (j) means for recirculating water from said sump to said source of water.
  • said filtering means comprises:
  • conduit means comprises:
  • conduit means for transferring to said sump water passed through said second filtering means
  • Apparatus for separating coke fines from water comprising:
  • conduit means connecting said channelway with said sump
  • (h) means for decanting into said sump supernatant water from above the coke fines settled to the bottom of said settling basin.
  • Apparatus as claimed in claim 12 wherein said filter means comprises a pair of rigid metal grates having a screen positioned therebetween for supporting relative large weights while preventing coke fines of smaller particulate size from passing therethrough.
  • conduit means (g) comprises a generally L-shaped tubular conduit having one of its legs projecting through a wall of said sump and into said filtrate-receiving channelway and having its other leg extending substantially normal to said one leg and swingably secured thereto for rotation in said sump about the axis of. said one leg.
  • Apparatus for separating coke fines from water comprising:
  • filter means in the bottom of each basin above said channelways, comprising screens for straining the water from the coke fines;
  • conduit means connecting each of said channelways with said sump

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Coke Industry (AREA)
US215813A 1962-08-09 1962-08-09 Manufacture of petroleum coke Expired - Lifetime US3257309A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US215813A US3257309A (en) 1962-08-09 1962-08-09 Manufacture of petroleum coke
GB25294/63A GB1043734A (en) 1962-08-09 1963-06-25 Manufacture of petroleum coke
ES290521A ES290521A1 (es) 1962-08-09 1963-08-01 Perfeccionamientos en la fabricación de coque de petróleo
DE19631471557 DE1471557A1 (de) 1962-08-09 1963-08-06 Verfahren zur Herstellung von Petrolkoks
NL63296454A NL140752B (nl) 1962-08-09 1963-08-09 Inrichting voor het opwerken van een petroleum-cokeswaterbrij, die ontstaat bij het met stralen water verwijderen van het cokesprodukt uit de verkooksingstrommels van de vertraagde verkooksing.
JP44085635A JPS491601B1 (de) 1962-08-09 1969-10-24

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US215813A US3257309A (en) 1962-08-09 1962-08-09 Manufacture of petroleum coke

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US3257309A true US3257309A (en) 1966-06-21

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US215813A Expired - Lifetime US3257309A (en) 1962-08-09 1962-08-09 Manufacture of petroleum coke

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US (1) US3257309A (de)
JP (1) JPS491601B1 (de)
DE (1) DE1471557A1 (de)
ES (1) ES290521A1 (de)
GB (1) GB1043734A (de)
NL (1) NL140752B (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4661241A (en) * 1985-04-01 1987-04-28 Mobil Oil Corporation Delayed coking process
US5071515A (en) * 1987-03-09 1991-12-10 Conoco Inc. Method for improving the density and crush resistance of coke
US5174891A (en) * 1991-10-29 1992-12-29 Conoco Inc. Method for producing isotropic coke
WO2003057604A1 (en) * 2002-01-10 2003-07-17 Magaldi Ricerche E Brevetti S.R.L. Extraction, drainage and transport of petroleum coke
US20030192819A1 (en) * 2002-04-11 2003-10-16 Casey Dwight Paul Vibratory apparatus for separating liquid from liquid laden solid material
US20090179134A1 (en) * 2008-01-10 2009-07-16 General Kinematics Corporation Modular deck assembly for a vibratory apparatus
WO2014153059A1 (en) * 2013-03-14 2014-09-25 Bechtel Hydrocarbon Technology Solutions, Inc. Delayed coking drum quench overflow systems and methods
US10138425B2 (en) 2015-09-21 2018-11-27 Bechtel Hydrocarbon Technology Solutions, Inc. Delayed coke drum quench systems and methods having reduced atmospheric emissions
CN114410339A (zh) * 2022-01-26 2022-04-29 连云港石化有限公司 一种轻烃裂解装置中清焦水槽收集装置及其使用方法

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US2340974A (en) * 1942-02-20 1944-02-08 Standard Oil Dev Co Refining process
US2384967A (en) * 1943-05-29 1945-09-18 Standard Oil Dev Co Separation of catalyst from oil
US3068167A (en) * 1959-11-16 1962-12-11 Cities Service Res & Dev Co Screen separation of tar sand
US3116231A (en) * 1960-08-22 1963-12-31 Continental Oil Co Manufacture of petroleum coke

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4661241A (en) * 1985-04-01 1987-04-28 Mobil Oil Corporation Delayed coking process
US5071515A (en) * 1987-03-09 1991-12-10 Conoco Inc. Method for improving the density and crush resistance of coke
US5174891A (en) * 1991-10-29 1992-12-29 Conoco Inc. Method for producing isotropic coke
WO2003057604A1 (en) * 2002-01-10 2003-07-17 Magaldi Ricerche E Brevetti S.R.L. Extraction, drainage and transport of petroleum coke
CN1630611B (zh) * 2002-01-10 2010-05-05 马加莱狄研究与专利公司 石油焦炭的提取、排放和传送系统
US20070144979A1 (en) * 2002-04-11 2007-06-28 General Kinematics Corporation Vibratory Apparatus for Separating Liquid from Liquid-Laden Solid Material
US7108793B2 (en) * 2002-04-11 2006-09-19 General Kinematics Corporation Method of separating liquid from liquid laden solid material
US7186347B2 (en) 2002-04-11 2007-03-06 General Kinematics Corporation Vibratory apparatus for separating liquid from liquid laden solid material
US20030217960A1 (en) * 2002-04-11 2003-11-27 Casey Dwight P. Method of separating liquid form liquid laden solid material
US20090289004A1 (en) * 2002-04-11 2009-11-26 General Kinematics Corporation Vibratory apparatus for separating liquid from liquid-laden solid material
US20030192819A1 (en) * 2002-04-11 2003-10-16 Casey Dwight Paul Vibratory apparatus for separating liquid from liquid laden solid material
US20090179134A1 (en) * 2008-01-10 2009-07-16 General Kinematics Corporation Modular deck assembly for a vibratory apparatus
WO2014153059A1 (en) * 2013-03-14 2014-09-25 Bechtel Hydrocarbon Technology Solutions, Inc. Delayed coking drum quench overflow systems and methods
US9187696B2 (en) 2013-03-14 2015-11-17 Bechtel Hydrocarbon Technology Solutions, Inc. Delayed coking drum quench overflow systems and methods
EA029785B1 (ru) * 2013-03-14 2018-05-31 Бектел Гидрокарбон Текнолоджи Солушенз, Инк. Сливная система и способ, используемые при охлаждении камеры для замедленного коксования
US10138425B2 (en) 2015-09-21 2018-11-27 Bechtel Hydrocarbon Technology Solutions, Inc. Delayed coke drum quench systems and methods having reduced atmospheric emissions
US10479941B2 (en) * 2015-09-21 2019-11-19 Bechtel Hydrocarbon Technology Solutions, Inc. Delayed coke drum quench systems and methods having reduced atmospheric emissions
CN114410339A (zh) * 2022-01-26 2022-04-29 连云港石化有限公司 一种轻烃裂解装置中清焦水槽收集装置及其使用方法

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NL140752B (nl) 1974-01-15
ES290521A1 (es) 1964-01-01
GB1043734A (en) 1966-09-28
DE1471557A1 (de) 1969-04-10
JPS491601B1 (de) 1974-01-16

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