[go: up one dir, main page]

US20020117389A1 - Coke drum outlet overhead deflector plate apparatus and method - Google Patents

Coke drum outlet overhead deflector plate apparatus and method Download PDF

Info

Publication number
US20020117389A1
US20020117389A1 US09/873,561 US87356101A US2002117389A1 US 20020117389 A1 US20020117389 A1 US 20020117389A1 US 87356101 A US87356101 A US 87356101A US 2002117389 A1 US2002117389 A1 US 2002117389A1
Authority
US
United States
Prior art keywords
coke drum
aperture
deflector
solids
drum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US09/873,561
Other languages
English (en)
Inventor
Jim Roth
Harry Janssen
Betty Janssen
Gary Hughes
Brian Doerksen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ConocoPhillips Co
Original Assignee
Conoco Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Conoco Inc filed Critical Conoco Inc
Priority to US09/873,561 priority Critical patent/US20020117389A1/en
Assigned to CONOCO INC. reassignment CONOCO INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DOERKSEN, BRIAN J., HUGHES, GARY C., JANSSEN, HARRY R. (DECEASED), ROTH, JIM R.
Publication of US20020117389A1 publication Critical patent/US20020117389A1/en
Assigned to CONOCOPHILLIPS COMPANY reassignment CONOCOPHILLIPS COMPANY MERGER (SEE DOCUMENT FOR DETAILS). Assignors: CONOCO INC.
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • 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
    • C10B1/00—Retorts
    • C10B1/02—Stationary retorts
    • C10B1/04—Vertical retorts
    • 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
    • C10B27/00—Arrangements for withdrawal of the distillation gases
    • C10B27/06—Conduit details, e.g. valves
    • 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 delayed coking. More particularly, the present invention relates to a deflector placed inside the top of a coke drum and below the overhead vapor outlet nozzle to reduce the amount of solids and heavy hydrocarbon liquids from escaping through the outlet nozzle of the coke drum and returning back to the fractionator.
  • the coke drum or drums may be operating under higher than atmospheric pressure, encouraging liquids and solids to be blown out of the vapor nozzle.
  • the present invention provides new and improved construction wherein the same can be utilized reliably.
  • the general purpose of the present invention which will be described subsequently in greater detail, is to provide a new and improved delayed coking drum which has all the advantages of the prior art and none of the disadvantages.
  • the present invention provides a deflector in the top coke drum interior.
  • the deflector is placed below and spaced from the overhead vapor nozzle outlet so that solids and liquids traveling toward the nozzle are deflected back into the drum while vapors are allowed to pass out of the coke drum.
  • An even further object of the present invention is to provide a deflector improvement which is retrofittable to existing delayed coking units.
  • Still another object of the present invention is to provide a new and improved delayed coking unit which is more efficient and of a durable and reliable construction.
  • FIG. 1 is a schematic view of a delayed coking process to which the present invention may be applied.
  • FIG. 2 is a side elevation, partly in cross section, showing details of a coke drum and deflector constructed in accordance with the present invention.
  • FIG. 3 is a perspective view, partly in cross section, showing details of a coke drum and a conical deflector in accordance with an alternate embodiment of the present invention.
  • FIG. 1 shows a simplified, typical coker unit where coker feed from line 10 passes to furnace 12 where it is heated.
  • the arrangement in FIG. 1 utilizes a pair of coke drums although it will be appreciated that the present invention may be applied to a single drum or multiple drums.
  • Coke drums 14 and 16 are alternately filled and emptied. When a drum has been filled with solid coke, access is provided to at least the bottom (and often the top) to remove the coke.
  • Overhead vapors from the coke drum being filled are returned via line 18 to coker fractionator 20 .
  • a recycle liquid such as coker gas oil or coker feedstock is feed into fractionator 20 via line 22 .
  • a wet gas overhead stream is removed from fractionator 20 via line 24 , and intermediate liquid fractions are removed via lines 26 and 28 .
  • Unwanted solids and heavy hydrocarbon liquids 30 are removed from the bottom of fractionator 20 via line 32 and directed to the furnace.
  • coke drum 14 includes a substantially cylindrical center portion and a top portion 34 with aperture 36 for access to interior of the coke drum 14 .
  • Overhead vapor outlet nozzle 38 is preferably removably attached to aperture 36 and leads to fractionator 20 via out line 18 (not seen in FIG. 2). While dimensions may vary, in one preferred embodiment the diameter of the outlet nozzle may range from between approximately 24 to 30 inches (61 to 76 cm).
  • FIG. 2 is partially cut away for clarity.
  • the invention includes the addition of deflector 40 placed generally below and spaced from aperture 36 in the coke drum 14 and suspended from overhead vapor outlet nozzle 38 .
  • Deflector 40 is generally removably attached by an attachment mechanism 42 to overhead vapor outlet nozzle 38 .
  • deflector 40 is preferably suspended 1 (one) to 10 (ten) feet below overhead outlet vapor nozzle 38 .
  • attachment means are brackets, bolts, wires, hooks, screws, or the like. Accordingly, after the vapor outlet nozzle hardware is disassembled, the deflector could be pulled out.
  • deflector 40 is preferably a circular plate made from metal or other suitable material with a sufficient diameter to generally cover aperture 36 but also fit through aperture 36 when overhead vapor outlet nozzle 38 is removed from coke drum 14 . Accordingly, the diameter of the plate will be slightly less than the diameter of the aperture.
  • deflector 40 is a generally conically shaped deflector 44 as shown in FIG. 3 where apex tip 46 of the cone points toward overhead vapor outlet nozzle 36 .
  • the center point of the aperture is generally aligned with the apex tip.
  • the deflector might take the form of a pair of inclined panels joined together.
  • escaping vapors are forced to take a circuitous route.
  • feed heated in the furnace is delivered to the drum and thermally decomposes.
  • Vapors in the drum will rise toward the aperture. Liquid droplets and solid particles will impinge on the deflector and drop back into the drum. Meanwhile, vapors will pass around the deflector and exit through the outlet.
  • the present invention may be easily retrofitted to existing coke drums.
  • the deflector may be suspended from the overhead vapor outlet nozzle by fasteners such as bolts.
  • the present invention provides a coke drum for a delayed coking unit wherein said coke drum comprises:
  • a deflector for deflecting solids and heavy hydrocarbon liquid from exiting said interior of said coke drum through said aperture.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Coke Industry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
US09/873,561 2000-06-13 2001-06-04 Coke drum outlet overhead deflector plate apparatus and method Abandoned US20020117389A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/873,561 US20020117389A1 (en) 2000-06-13 2001-06-04 Coke drum outlet overhead deflector plate apparatus and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21143800P 2000-06-13 2000-06-13
US09/873,561 US20020117389A1 (en) 2000-06-13 2001-06-04 Coke drum outlet overhead deflector plate apparatus and method

Publications (1)

Publication Number Publication Date
US20020117389A1 true US20020117389A1 (en) 2002-08-29

Family

ID=22786925

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/873,561 Abandoned US20020117389A1 (en) 2000-06-13 2001-06-04 Coke drum outlet overhead deflector plate apparatus and method

Country Status (10)

Country Link
US (1) US20020117389A1 (fr)
JP (1) JP2004503658A (fr)
CN (1) CN1383447A (fr)
AU (1) AU2001265427A1 (fr)
BR (1) BR0106726A (fr)
CA (1) CA2382283A1 (fr)
MX (1) MXPA02001551A (fr)
MY (1) MY133973A (fr)
WO (1) WO2001096495A1 (fr)
ZA (1) ZA200201088B (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2364492A (en) * 1941-05-31 1944-12-05 Max B Miller & Co Inc Method of coking and cracking petroleum residues or the like
US3816084A (en) * 1970-04-16 1974-06-11 Exxon Research Engineering Co Cokeless coker with recycle of coke from gasifier to heater
US4549934A (en) * 1984-04-25 1985-10-29 Conoco, Inc. Flash zone draw tray for coker fractionator
US4621724A (en) * 1984-09-13 1986-11-11 Foster Wheeler Energy Corporation Fractionator having reduced product vapor condensation in the flash zone
US4801402A (en) * 1985-11-12 1989-01-31 Texaco Inc. Partial oxidation process
US4816136A (en) * 1986-05-27 1989-03-28 Exxon Research And Engineering Company Low severity fluid coking
US5645711A (en) * 1996-01-05 1997-07-08 Conoco Inc. Process for upgrading the flash zone gas oil stream from a delayed coker

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD154612A1 (de) * 1980-11-21 1982-04-07 Manfred Gross Verfahren zur verkokung von kohlenwasserstoffen nach der blasentechnologie
US5827403A (en) * 1996-07-10 1998-10-27 Citgo Petroleum Corporation Method of designing and manufacturing a delayed coker drum

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2364492A (en) * 1941-05-31 1944-12-05 Max B Miller & Co Inc Method of coking and cracking petroleum residues or the like
US3816084A (en) * 1970-04-16 1974-06-11 Exxon Research Engineering Co Cokeless coker with recycle of coke from gasifier to heater
US4549934A (en) * 1984-04-25 1985-10-29 Conoco, Inc. Flash zone draw tray for coker fractionator
US4621724A (en) * 1984-09-13 1986-11-11 Foster Wheeler Energy Corporation Fractionator having reduced product vapor condensation in the flash zone
US4801402A (en) * 1985-11-12 1989-01-31 Texaco Inc. Partial oxidation process
US4816136A (en) * 1986-05-27 1989-03-28 Exxon Research And Engineering Company Low severity fluid coking
US5645711A (en) * 1996-01-05 1997-07-08 Conoco Inc. Process for upgrading the flash zone gas oil stream from a delayed coker

Also Published As

Publication number Publication date
AU2001265427A1 (en) 2001-12-24
MY133973A (en) 2007-11-30
CA2382283A1 (fr) 2001-12-20
MXPA02001551A (es) 2003-07-21
BR0106726A (pt) 2002-04-30
WO2001096495A8 (fr) 2002-03-07
JP2004503658A (ja) 2004-02-05
CN1383447A (zh) 2002-12-04
WO2001096495A1 (fr) 2001-12-20
ZA200201088B (en) 2003-07-25

Similar Documents

Publication Publication Date Title
US4066533A (en) Separation of catalyst from effluent of a fluidized catalytic hydrocarbon conversion process
DE3873211T2 (de) Krackvorrichtung und -verfahren mit festen teilchen.
EP0291253B1 (fr) Procédé et appareillage pour mélanger la charge et le catalyseur dans un craquage catalytique fluidisé d'hydrocarbures
US3123547A (en) Fluidized catalytic cracking process
US5139748A (en) FCC riser with transverse feed injection
US7101474B2 (en) Method and process with refractory shelf for hydrodynamic mixing zone
KR970027112A (ko) 노 즐
EP0369536A1 (fr) Procédé pour maximaliser sélectivement la production de produits dans le craquage catalytique fluidisé d'hydrocarbures
US3057786A (en) Foam eliminating feed distributor
CA1139701A (fr) Methode et appareil pour l'elimination des produits volatils contenus dans des matieres a grains fins a base d'hydrocarbures, grace a des substances chauffees, a grains fins, servant de vehicules thermiques
AU733170B2 (en) Process for producing liquid and, optionally, gaseous products from gaseous reactants
CA2035452A1 (fr) Methode d'alimentation en liquide d'une tour de separation vapeur/liquide
US8202403B2 (en) Core de-entrainment device for vessels with tangential inlets
US20020117389A1 (en) Coke drum outlet overhead deflector plate apparatus and method
US3722184A (en) Apparatus for separating oil and gas from a foaming crude oil stream
US5370789A (en) Ultrapyrolytic heavy oil upgrading in an internally circulating aerated bed
US7429363B2 (en) Riser termination device
US2848381A (en) Gas-solids separation in high temperature coking
US2739104A (en) Process for continuous fluid coking
NO130593B (fr)
JPS6072985A (ja) 炭化水素油の連続的熱分解のための方法および装置
EP0318185A1 (fr) Modèle d'injecteur de charge pour FCC
JPH0633073A (ja) ２つの連続反応帯域における接触クラッキング方法および装置
HU226991B1 (en) Process and apparatus for treatment of solid material in a vessel
US4618051A (en) Fractionation method and apparatus

Legal Events

Date Code Title Description
AS Assignment

Owner name: CONOCO INC., OKLAHOMA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ROTH, JIM R.;JANSSEN, HARRY R. (DECEASED);HUGHES, GARY C.;AND OTHERS;REEL/FRAME:011890/0677

Effective date: 20010601

AS Assignment

Owner name: CONOCOPHILLIPS COMPANY, TEXAS

Free format text: MERGER;ASSIGNOR:CONOCO INC.;REEL/FRAME:013887/0380

Effective date: 20021212

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION