WO1995014069A1 - Elimination de dechets de matieres plastiques - Google Patents

Elimination de dechets de matieres plastiques Download PDF

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Publication number
WO1995014069A1
WO1995014069A1 PCT/US1994/013426 US9413426W WO9514069A1 WO 1995014069 A1 WO1995014069 A1 WO 1995014069A1 US 9413426 W US9413426 W US 9413426W WO 9514069 A1 WO9514069 A1 WO 9514069A1
Authority
WO
WIPO (PCT)
Prior art keywords
plastic
solvent
coker
extract
waste material
Prior art date
Application number
PCT/US1994/013426
Other languages
English (en)
Inventor
Kenneth R. Graziani
Burdette Lee Joesten
Richard Howard Leitman
Jerry Alan Pickering
William J. Tracy, Iii
Original Assignee
Mobil Oil Corporation
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 Mobil Oil Corporation filed Critical Mobil Oil Corporation
Priority to AU12923/95A priority Critical patent/AU1292395A/en
Publication of WO1995014069A1 publication Critical patent/WO1995014069A1/fr

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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
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/10—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
    • 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
    • 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
    • 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
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/005—Coking (in order to produce liquid products mainly)

Definitions

  • This invention relates to the disposal of waste plastic material.
  • plastic materials which are difficult to apply to this type of use.
  • plastic materials in general, and very stable plastic materials like polyolefins and polystyrene in particular, into more basic organic chemicals. If this sort of process was available, after the plastic was converted into simpler, more basic units, contaminants could more readily be separated from the chemical conversion products and the process of making the plastic could be started all over again. Alternatively, these more basic chemicals could possibly be put to some other useful purpose, such as for example as fuel.
  • plastic materials are produced from petroleum derived raw materials.
  • polyolefins are made by polymerizing ⁇ -olefin monomers, such as ethylene, and propylene, which in turn are made by the cracking of petroleum derived hydrocarbons.
  • Petroleum derived hydrocarbons are the main component of petroleum derived fuels and petrochemicals. It would therefore be desirable to reconvert the polyolefins, or other plastics, into products which are more like their petroleum based starting materials in order to be able to reuse these ultimate raw materials, that is the carbon and the hydrogen content of the plastics.
  • United States patent 1,950,811 there is disclosed a process for recovering oil and coke from oil bearing residues in combination with non-petroleum, carbonizable raw materials, such as: coal, peat, sawdust and the like, by treating a suitable feed at high temperatures of 900 to 1,000°F.
  • a process for producing coke is disclosed wherein the feed to the coker is a mixture of conventional petroleum based coker feed and 1-10 % cellulosic material, such as sawdust, slurried therein.
  • the solvents-carriers which are said to be useful in the process of this reference are very heavy, high boiling aromatic mixtures such as: FCC main column bottoms, TCC syntower bottoms, asphaltic materials, alkane deasphalted tar, coker gas oil, clarified slurry oil, anthracene oil, coal tar and mixtures thereof.
  • Light cycle oil has also been mentioned as a possible liquefying agent.
  • plastic and polymeric materials include polyvinyl chloride, polystyrene, polyolefins, such as polyethylene and polypropylene, polyesters, polyacrylics, various rubbers, and the like. It is noted that this patent states that the solid organic waste material being treated "does not require extensive pretreatment before admixture with the petroleum solvent".
  • An important element of this invention is the definition of the liquid material into which the plastic scrap material is dissolved prior to conversion in the coker operation. While the prior art has disclosed many conventional refinery streams as being able to effectively accomplish this dissolution of plastic materials prior to the conversion thereof into suitable products, many, if not all of these prior disclosed solvents have significant value in a refinery operation. Indeed, many of these streams have a higher inherent economic value that the products of coking, even considering only the liquid products of coking. It has now been found, according to this invention, that certain less valuable, conventional refinery liquid streams are particularly well suited to use as the media into which waste plastic material is dissolved. These newly discovered solvent fractions are different from those materials which have heretofore been disclosed as possibly useful for the dissolution of plastic materials.
  • composition of the liquid products will depend on the chemical composition of the added plastic, with polystyrene giving a high octane gasoline of aromatic character whereas polyolefins, such as polyethylene and polypropylene, give relatively more middle distillate.
  • the plastics are, however, readily converted to the desired liquid products without a major increase in the amount of coke produced especially with polyolefins, such as polyethylene and polypropylene.
  • Particularly preferred extract fractions for use in this invention are: heavy vacuum distillate furfural extract, bright stock extract, and light vacuum distillate furfural extract. These are the aromatic portions of vacuum distillation fractions from crude oil which have been suitably extracted. These fractions have molecular weights of 300 to 600, and have aromatic contents greater than 80%wt.
  • plastic materials are composed of relatively long chains which are often hydrocarbon in nature.
  • these chains are aliphatic.
  • these polymer chains may be long, but they have many aromatic or other, heterogeneous groups within their chains.
  • the polymeric waste material is suitably admixed with the aromatic extract solvents described herein until a substantial amount of plastic is dissolved, suspended, and/or dispersed therein.
  • Suitable dissolution operating temperatures are 10 to 325°C (50 to 600°F), preferably 150 to 230°C (300 to 450 T).
  • Dissolution of plastic materials into a suitable aromatic extract solvent can be accomplished in a batch or a continuous operation as needed. As is common in any solubilizing operation, dissolution can be assisted by increasing the surface area of the plastics material. This can be accomplished by comminution, such as by grinding or shredding.
  • plastic material it is preferred to limit the plastic material, as much as possible, to hydrocarbonaceous plastics such as poly(aliphatic)olefi ⁇ s, polystyrenes, and substituted polystyrenes, as well as copolymers which are predominantly hydrocarbonaceous in nature. Small proportions of other plastics can be tolerated by this process but are not preferred. Suitably, less than 10% of the plastic scrap feed to this process can be non-hydrocarbonaceous, e. g. halogens, nitrogen, sulfur and oxygen.
  • hydrocarbonaceous plastics such as poly(aliphatic)olefi ⁇ s, polystyrenes, and substituted polystyrenes, as well as copolymers which are predominantly hydrocarbonaceous in nature. Small proportions of other plastics can be tolerated by this process but are not preferred.
  • less than 10% of the plastic scrap feed to this process can be non-hydrocarbonaceous, e. g. halogens, nitrogen, sulfur and oxygen.
  • halogenated plastics such as polyvinyl chloride and polyvinylidene chloride, and the oxygenated plastics such as polycarbonates and polyesters
  • suitable mechanical means such as for example centrifugation, either by themselves or suitably suspended in a liquid, such as the aromatic extract solvents which are selected according to this invention.
  • the halogenated plastic materials tend to decompose at relatively low temperatures of 90 to 200°C (200 to 400 °F) .
  • the conditions which are conducive to dissolution of the plastics in general are also conducive to the decomposition of polyvinyl chloride, causing HC1 to be driven off. Since HCl is highly corrosive and is therefore detrimental to most downstream processing activities and equipment which will see the plastic solution, it is most desirable to remove this material from the dissolved plastic and to separately collect and dispose of it.
  • downstream processing of the dissolved plastic is by means of a delayed coking operation.
  • the dissolved plastic solution is suitably fed into the coker main column fractionator along with other, more conventional feed streams.
  • the feedstock In order to bring the feedstock up to the required temperature and to conserve process heat, the feedstock is usually charged near the base of the same fractionator tower which receives the overhead volatile components which are driven off the coke drum.
  • the feed to the furnace is taken from the bottom of the fractionator or "combination" tower, and the products of the coking process, including heavy coker gas oil, light coker gas oil and coker gasoline are removed from the higher levels in the tower.
  • the use of the tower bottoms as the feed for the coker furnace has three main objectives.
  • the plastic scrap material is dissolved in a suitable solvent as aforesaid, such as for example the highly aromatic furfural extract from a lube unit, and the solution is fed to the fractionator of the delayed coker unit.
  • a suitable solvent such as for example the highly aromatic furfural extract from a lube unit
  • the plastic solute and its aromatic extract solvent are high enough boiling that they stay in the liquid phase within the coker main fractionator. Thus they become part of the bottoms of the fractionator * d are fed to the coker unit as part of the otherwise conventional feed from the main column bottoms. This is economically most advantageous since the solvent generally is of little 5 economic value. Its conversion to lighter products, along with the plastic scrap solute, in the coker substantially increases its economic value.
  • the scrap plastic material 8 for feeding to the coker according to this invention is comminuted into very fine particles and fed to a holding vessel 10, which may be suitably agitated in a known manner.
  • a highly aromatic extract solvent 12 is also fed to this vessel and the two mixed for a time sufficient to dissolve at least substantial proportions of the plastic scrap in the solvent to form a solution 14 which is, in turn, fed to the main fractionator tower 16 of an otherwise conventional refinery coker operation.
  • the other refinery streams which are intended to be processed in the coker are accumulated and fed into the tower as feed 17, typically at a temperature of about 200°C.
  • the dissolved plastic solution 14 is mixed with the feed 17 and the liquid products of coking 18 which come off the coke drums 20, typically at a temperature of 440°C at 500kPa, in the lower section of the fractionator tower 16.
  • the mixture of oils in the tower is fractionated into its component materials, which include the liquid products of coking such as naphtha 22, light coker gas oil 24 and and heavy coker gas oil 26, as well as the bottoms liquid feed to the coker 28.
  • Stream 28 which is fed to the coker drums 20, is suitably heated, conventionally by means of a furnace 29, before being fed to the coker drums.
  • solutions of plastic scrap which are used according to this invention produce a solid as well as liquid coker product which is augmented to increase its quantity and quality as a function of the amount of plastic scrap which has been fed thereto.
  • This process shows an improvement in the amount of scrap plastic which can be converted in the conventional delayed coker when using the specific group of solvents defined herein, as compared to what is achievable by using solutions of plastics in solvents which have been disclosed in the past.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Un procédé, qui permet d'éliminer des déchets de matière plastique, consiste à les mélanger dans une cuve (10) d'entreposage avec une phase (12) d'extrait furfural hautement aromatique pour les y dissoudre et former ainsi une solution (14) qu'on envoie à la colonne (16) principale de fractionnement d'un four à coke de raffinerie conventionnelle, après quoi on soumet cette solution à une cokéfaction différée.
PCT/US1994/013426 1993-11-18 1994-11-17 Elimination de dechets de matieres plastiques WO1995014069A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU12923/95A AU1292395A (en) 1993-11-18 1994-11-17 Disposal of plastic waste material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15406893A 1993-11-18 1993-11-18
US08/154,068 1993-11-18

Publications (1)

Publication Number Publication Date
WO1995014069A1 true WO1995014069A1 (fr) 1995-05-26

Family

ID=22549869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/013426 WO1995014069A1 (fr) 1993-11-18 1994-11-17 Elimination de dechets de matieres plastiques

Country Status (2)

Country Link
AU (1) AU1292395A (fr)
WO (1) WO1995014069A1 (fr)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005054409A1 (fr) * 2003-11-21 2005-06-16 John Taylor Production de combustible hydrocarbone
WO2005113712A1 (fr) * 2004-05-14 2005-12-01 Exxonmobil Research And Engineering Company Procede de cokefaction temporise pour la fabrication de coke non compacte utilisant des additifs polymeres
US7303664B2 (en) 2003-05-16 2007-12-04 Exxonmobil Research And Engineering Company Delayed coking process for producing free-flowing coke using a metals-containing additive
US7374665B2 (en) 2004-05-14 2008-05-20 Exxonmobil Research And Engineering Company Blending of resid feedstocks to produce a coke that is easier to remove from a coker drum
US7537686B2 (en) 2004-05-14 2009-05-26 Exxonmobil Research And Engineering Company Inhibitor enhanced thermal upgrading of heavy oils
US7645375B2 (en) 2003-05-16 2010-01-12 Exxonmobil Research And Engineering Company Delayed coking process for producing free-flowing coke using low molecular weight aromatic additives
US7658838B2 (en) 2003-05-16 2010-02-09 Exxonmobil Research And Engineering Company Delayed coking process for producing free-flowing coke using polymeric additives
US7727382B2 (en) 2004-05-14 2010-06-01 Exxonmobil Research And Engineering Company Production and removal of free-flowing coke from delayed coker drum
US7794587B2 (en) 2008-01-22 2010-09-14 Exxonmobil Research And Engineering Company Method to alter coke morphology using metal salts of aromatic sulfonic acids and/or polysulfonic acids
US7794586B2 (en) 2004-05-14 2010-09-14 Exxonmobil Research And Engineering Company Viscoelastic upgrading of heavy oil by altering its elastic modulus
US8344194B2 (en) 2009-05-22 2013-01-01 Kior, Inc. Process for the conversion of solid particulated biomass materials
RU2721849C1 (ru) * 2019-12-26 2020-05-25 Общество с ограниченной ответственностью "ЛУКОЙЛ-Нижегородниинефтепроект" Способ переработки полимерных отходов на установках замедленного коксования
EP3795656A1 (fr) 2019-09-23 2021-03-24 Indian Oil Corporation Limited Procédé et appareil pour la co-conversion de déchets plastiques dans une unité de cokéfaction différée
US10968396B1 (en) 2020-01-29 2021-04-06 Saudi Arabian Oil Company Method and process for producing needle coke from aromatic polymer material and aromatic bottoms of an aromatic recovery complex
US11104851B2 (en) 2020-01-29 2021-08-31 Saudi Arabian Oil Company Method and process for depolymerization of a plastic polymer
WO2022010714A1 (fr) * 2020-07-07 2022-01-13 Saudi Arabian Oil Company Composition de mélange de mazout lourd contenant des déchets de polystyrène dissous
WO2022020151A1 (fr) * 2020-07-23 2022-01-27 Exxonmobil Chemical Patents Inc. Pyrolyse de déchets plastiques avec recyclage de liquide
WO2022162441A1 (fr) * 2021-01-29 2022-08-04 Dorf Ketal Chemicals (India) Private Limited Composition d'additif de réduction de coke et d'augmentation du distillat pendant la pyrolyse d'une charge d'alimentation, et son procédé d'utilisation
WO2022216643A1 (fr) * 2021-04-06 2022-10-13 J. Ray Mcdermott, S.A. Procédés, systèmes et appareil de mélange de matières plastiques pour réduire efficacement l'empreinte carbone dans des systèmes de raffinage et des systèmes de traitement pétrochimique
US11479726B2 (en) 2020-09-28 2022-10-25 Chevron Phillips Chemical Company, Lp Circular chemicals or polymers from pyrolyzed plastic waste and the use of mass balance accounting to allow for crediting the resultant products as circular
WO2023117515A1 (fr) * 2021-12-21 2023-06-29 Sabic Global Technologies B.V. Procédé de conversion de déchets plastiques en produits chimiques
WO2023117516A1 (fr) * 2021-12-20 2023-06-29 Sabic Global Technologies B.V. Procédé de conversion de déchets plastiques en produits chimiques
US11802250B1 (en) 2022-11-10 2023-10-31 Chevron Phillips Chemical Company Lp Systems and processes for processing pyrolysis oil
WO2023215703A1 (fr) 2022-05-04 2023-11-09 Exxonmobil Chemical Patents Inc. Co-traitement de déchets plastiques dans des unités de cokéfaction pour la production de carburéacteur
WO2024018346A1 (fr) 2022-07-20 2024-01-25 Dorf Ketal Chemicals (India) Private Limited Composition d'additif réduisant le coke et son procédé d'utilisation
WO2024050217A1 (fr) * 2022-09-02 2024-03-07 Exxonmobil Chemical Patents Inc. Procédés de craquage thermique de déchets plastiques
US11939532B2 (en) 2022-01-25 2024-03-26 Braskem S.A. Methods and systems for co-feeding waste plastics into a refinery

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617514A (en) * 1969-12-08 1971-11-02 Sun Oil Co Use of styrene reactor bottoms in delayed coking
US4118281A (en) * 1977-04-15 1978-10-03 Mobil Oil Corporation Conversion of solid wastes to fuel coke and gasoline/light oil

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617514A (en) * 1969-12-08 1971-11-02 Sun Oil Co Use of styrene reactor bottoms in delayed coking
US4118281A (en) * 1977-04-15 1978-10-03 Mobil Oil Corporation Conversion of solid wastes to fuel coke and gasoline/light oil

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7645375B2 (en) 2003-05-16 2010-01-12 Exxonmobil Research And Engineering Company Delayed coking process for producing free-flowing coke using low molecular weight aromatic additives
US7303664B2 (en) 2003-05-16 2007-12-04 Exxonmobil Research And Engineering Company Delayed coking process for producing free-flowing coke using a metals-containing additive
US7306713B2 (en) 2003-05-16 2007-12-11 Exxonmobil Research And Engineering Company Delayed coking process for producing free-flowing coke using a substantially metals-free additive
US7658838B2 (en) 2003-05-16 2010-02-09 Exxonmobil Research And Engineering Company Delayed coking process for producing free-flowing coke using polymeric additives
AU2004295466B2 (en) * 2003-11-21 2011-11-10 Environmental Fuel Systems Limited Production of hydrocarbon fuel
US7736469B2 (en) 2003-11-21 2010-06-15 John Taylor Production of hydrocarbon fuel
WO2005054409A1 (fr) * 2003-11-21 2005-06-16 John Taylor Production de combustible hydrocarbone
US7537686B2 (en) 2004-05-14 2009-05-26 Exxonmobil Research And Engineering Company Inhibitor enhanced thermal upgrading of heavy oils
US7594989B2 (en) 2004-05-14 2009-09-29 Exxonmobile Research And Engineering Company Enhanced thermal upgrading of heavy oil using aromatic polysulfonic acid salts
US7704376B2 (en) 2004-05-14 2010-04-27 Exxonmobil Research And Engineering Company Fouling inhibition of thermal treatment of heavy oils
US7727382B2 (en) 2004-05-14 2010-06-01 Exxonmobil Research And Engineering Company Production and removal of free-flowing coke from delayed coker drum
US7732387B2 (en) 2004-05-14 2010-06-08 Exxonmobil Research And Engineering Company Preparation of aromatic polysulfonic acid compositions from light cat cycle oil
US7374665B2 (en) 2004-05-14 2008-05-20 Exxonmobil Research And Engineering Company Blending of resid feedstocks to produce a coke that is easier to remove from a coker drum
US7794586B2 (en) 2004-05-14 2010-09-14 Exxonmobil Research And Engineering Company Viscoelastic upgrading of heavy oil by altering its elastic modulus
WO2005113712A1 (fr) * 2004-05-14 2005-12-01 Exxonmobil Research And Engineering Company Procede de cokefaction temporise pour la fabrication de coke non compacte utilisant des additifs polymeres
US7794587B2 (en) 2008-01-22 2010-09-14 Exxonmobil Research And Engineering Company Method to alter coke morphology using metal salts of aromatic sulfonic acids and/or polysulfonic acids
US8344194B2 (en) 2009-05-22 2013-01-01 Kior, Inc. Process for the conversion of solid particulated biomass materials
EP3795656A1 (fr) 2019-09-23 2021-03-24 Indian Oil Corporation Limited Procédé et appareil pour la co-conversion de déchets plastiques dans une unité de cokéfaction différée
US11421159B2 (en) 2019-09-23 2022-08-23 Indian Oil Corporation Limited Process and apparatus for co-conversion of waste plastics in Delayed Coker unit
RU2721849C1 (ru) * 2019-12-26 2020-05-25 Общество с ограниченной ответственностью "ЛУКОЙЛ-Нижегородниинефтепроект" Способ переработки полимерных отходов на установках замедленного коксования
WO2021155408A1 (fr) * 2020-01-29 2021-08-05 Saudi Arabian Oil Company Procédé et processus de production de coke en aiguilles à partir d'un matériau polymère aromatique et de résidus de composés aromatiques d'un complexe de récupération de composés aromatiques
US11104851B2 (en) 2020-01-29 2021-08-31 Saudi Arabian Oil Company Method and process for depolymerization of a plastic polymer
US10968396B1 (en) 2020-01-29 2021-04-06 Saudi Arabian Oil Company Method and process for producing needle coke from aromatic polymer material and aromatic bottoms of an aromatic recovery complex
WO2022010714A1 (fr) * 2020-07-07 2022-01-13 Saudi Arabian Oil Company Composition de mélange de mazout lourd contenant des déchets de polystyrène dissous
WO2022020151A1 (fr) * 2020-07-23 2022-01-27 Exxonmobil Chemical Patents Inc. Pyrolyse de déchets plastiques avec recyclage de liquide
WO2022020152A1 (fr) * 2020-07-23 2022-01-27 Exxonmobil Chemical Patents Inc. Procédés de recyclage de déchets plastiques utilisant une suspension
US11781073B2 (en) 2020-09-28 2023-10-10 Chevron Phillips Chemical Company Lp Circular chemicals or polymers from pyrolyzed plastic waste and the use of mass balance accounting to allow for crediting the resultant products as circular
US11746297B2 (en) 2020-09-28 2023-09-05 Chevron Phillips Chemical Company Lp Circular chemicals or polymers from pyrolyzed plastic waste and the use of mass balance accounting to allow for crediting the resultant products as circular
US11479726B2 (en) 2020-09-28 2022-10-25 Chevron Phillips Chemical Company, Lp Circular chemicals or polymers from pyrolyzed plastic waste and the use of mass balance accounting to allow for crediting the resultant products as circular
US11518942B2 (en) 2020-09-28 2022-12-06 Chevron Phillips Chemical Company Lp Circular chemicals or polymers from pyrolyzed plastic waste and the use of mass balance accounting to allow for crediting the resultant products as circular
US20230145975A1 (en) * 2021-01-29 2023-05-11 Dorf Ketal Chemicals (India) Private Limited Additive Composition for Reducing Coke and Increasing Distillate during Pyrolysis of a Feedstock, and Method of Use Thereof
US11987755B2 (en) 2021-01-29 2024-05-21 Dorf Ketal Chemicals (India) Private Limited Additive composition for reducing coke and increasing distillate during pyrolysis of a feedstock, and method of use thereof
WO2022162441A1 (fr) * 2021-01-29 2022-08-04 Dorf Ketal Chemicals (India) Private Limited Composition d'additif de réduction de coke et d'augmentation du distillat pendant la pyrolyse d'une charge d'alimentation, et son procédé d'utilisation
WO2022216643A1 (fr) * 2021-04-06 2022-10-13 J. Ray Mcdermott, S.A. Procédés, systèmes et appareil de mélange de matières plastiques pour réduire efficacement l'empreinte carbone dans des systèmes de raffinage et des systèmes de traitement pétrochimique
WO2023117516A1 (fr) * 2021-12-20 2023-06-29 Sabic Global Technologies B.V. Procédé de conversion de déchets plastiques en produits chimiques
WO2023117515A1 (fr) * 2021-12-21 2023-06-29 Sabic Global Technologies B.V. Procédé de conversion de déchets plastiques en produits chimiques
US11939532B2 (en) 2022-01-25 2024-03-26 Braskem S.A. Methods and systems for co-feeding waste plastics into a refinery
WO2023215703A1 (fr) 2022-05-04 2023-11-09 Exxonmobil Chemical Patents Inc. Co-traitement de déchets plastiques dans des unités de cokéfaction pour la production de carburéacteur
WO2024018346A1 (fr) 2022-07-20 2024-01-25 Dorf Ketal Chemicals (India) Private Limited Composition d'additif réduisant le coke et son procédé d'utilisation
WO2024050217A1 (fr) * 2022-09-02 2024-03-07 Exxonmobil Chemical Patents Inc. Procédés de craquage thermique de déchets plastiques
US11802250B1 (en) 2022-11-10 2023-10-31 Chevron Phillips Chemical Company Lp Systems and processes for processing pyrolysis oil

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Publication number Publication date
AU1292395A (en) 1995-06-06

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