WO2016034739A1 - Additif minéral, en particulier pour application dans le traitement en continu de déchets matières plastiques, procédé qui utilise ledit additif et appareil permettant de mettre en oeuvre le procédé - Google Patents

Additif minéral, en particulier pour application dans le traitement en continu de déchets matières plastiques, procédé qui utilise ledit additif et appareil permettant de mettre en oeuvre le procédé Download PDF

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Publication number
WO2016034739A1
WO2016034739A1 PCT/EP2015/070364 EP2015070364W WO2016034739A1 WO 2016034739 A1 WO2016034739 A1 WO 2016034739A1 EP 2015070364 W EP2015070364 W EP 2015070364W WO 2016034739 A1 WO2016034739 A1 WO 2016034739A1
Authority
WO
WIPO (PCT)
Prior art keywords
additive
reactor
feedstock
mineral additive
products
Prior art date
Application number
PCT/EP2015/070364
Other languages
English (en)
Inventor
Marcin LUNIEWSKI
Piotr KONCEWICZ
Original Assignee
Realeco Sp. Z O.O.
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 Realeco Sp. Z O.O. filed Critical Realeco Sp. Z O.O.
Publication of WO2016034739A1 publication Critical patent/WO2016034739A1/fr

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Classifications

    • 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
    • C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
    • C10B57/06—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing additives
    • 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
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C10B53/07—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of solid raw materials consisting of synthetic polymeric materials, e.g. tyres
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics

Definitions

  • a mineral additive in particular for application in the continuous processing of waste plastics, a method which uses the said additive and an apparatus for carrying out the method
  • the object of the invention is a mineral additive, in particular for application in continuous processing of waste plastics consisting in melting the recirculated material formed thereof in the form of chaff, granules or agglomerates, subjecting the resulting phase to the pyrolysis process taking place in the extruder and then in the reactor in which hydrocarbon product is formed.
  • the object of the invention is also a method which uses this additive and an apparatus for carrying out the method.
  • patent specification PL178639 discloses a method for processing the old and waste plastics, consisting in the depolymerisation of feedstocks to a pumpable and volatile phase.
  • the volatile phase is separated into a gas phase and a condensate which is subjected to standard refining, while the pumpable phase, after separation of the volatile phase, is subjected to hydrogenation, low-temperature gasification or a combination of these processes.
  • the described depolymerisation method is a catalytic process taking place under the conditions of turbulent flow in the presence of an inert gas containing waste solvents, waste oils or fractions of petroleum refining.
  • Polish patent application PL339821 discloses also a method for producing a mixture of aliphatic hydrocarbons from a mixture waste plastics, consisting in thermal decomposition of the feedstock.
  • the mixture of waste thermoplastics after separating the buoyant fraction in water and after a possible preliminary treatment, is heated to a temperature of 320 - 450°C under a pressure of 0.008 - 3.5MPa, and then is distilled, and the resulting product is separated and purified.
  • thermocatalytic destruction process of waste plastics is disclosed in a description of the invention PL191341 , according to which the known process of thermodegradation of polyolefin wastes is carried out at a temperature of 250 - 450°C in the presence of a catalyst from the group of aluminosilicates, with a separation of the resultant products by fractional condensation and recycling to the process of gaseous side products being the source of heat.
  • Feedstock in solid or liquid form introduced into the reactor is mixed with technological oil in a weight ratio of 100 - 1 :1 , whereas the catalyst is fed to the reactor as a suspension in technological oil in the amount from 0.1 to 5% by weight relative to the amount of material.
  • feedstock in the form of a suspension of ground or granulated waste is in the amount from 1 to 20% by weight relative to the technological oil.
  • a method of thermal destruction of waste plastics is described in the application WO 95/03375. It involves melting the plastics before feeding them into the reactor, where degradation takes place at 400-550°C. It is proposed to re-introduce a low boiling fraction separated by distillation from the decomposition products into the reactor.
  • drawbacks that significantly limit their usefulness. The most important ones include the problem of removing solid reaction products on a continuous basis without interrupting the process. In most of the known solutions, it is necessary to use maintenance shut-downs necessary to remove the resulting solid products. This operation significantly reduces the efficiency of the plant and significantly reduces its energy efficiency.
  • the aim of the invention is therefore to provide an improved process for the thermal processing of waste plastics that would facilitate the removal of solid reaction products on a continuous basis without interrupting the process.
  • the object of the invention is a mineral additive, in particular for application in the continuous processing of waste plastics consisting in melting the recirculated material formed thereof in the form of chaff, granules or agglomerates, subjecting the resulting phase to the pyrolysis process taking place in the extruder and then in the reactor in which hydrocarbon product is formed, characterized in that it comprises a fraction with a grain size in the range of 0.1 to 1 mm, which is at least 80% by weight of the additive, preferably at least 90% by weight.
  • a fraction with a grain size up to 1 mm is 100% by weight of the additive.
  • the additive is a catalyst for polymer feedstock pyrolysis process.
  • the additive comprises metals and/or metal oxides and/or metal aluminosilicates.
  • the object of the invention is also a method of thermal processing of waste plastics, wherein the polymer feedstock, preferably in the form of chaff, granules or agglomerates is fed into the reactor, preferably through an extruder, in which extruder the feedstock gains plasticity and the pyrolysis process starts, wherein after feeding the feedstock into the reactor pyrolysis process is carried leading to the formation of hydrocarbon product, characterized in that during the pyrolysis process solid products of pyrolysis are condensed on the mineral additive according to any one of the preceding claims, and then the condensation products are sedimented and agglomerated.
  • the mineral additive is fed into the system along with the polymer feedstock.
  • the mineral additive is 1 -15% by weight, preferably less than 10% of the feed comprising the additive and polymer feedstock.
  • from 0 to 50% by weight of the mineral additive is replaced by an addition to the feedstock in the form of a solid product discharged from the process, after grinding to grain size of less than 1 mm and fraction in the range of 0.1 to 1 mm greater than 80% by weight.
  • the movement direction of the polymer feedstock changes.
  • the process is carried out continuously.
  • the solid product is discharged from the reactor continuously.
  • the rate of discharging solid products from the reactor and adding the additive is selected so that the softening point of the solid product is not less than 50°C, preferably 51 -60°C.
  • the object of the invention is also an apparatus for continuous thermal processing of waste plastics comprising a raw material dosing system, preferably an extruder, wherein the pyrolysis process starts, decomposition reactor, wherein the formation of the hydrocarbon product takes place, equipped with mixing elements and a system of receiving and separating the products, characterized in that at least one mixing element located in the reactor in the area of discharging solid products is adapted to changing the movement direction of the reaction mixture.
  • the apparatus comprises the means for discharging the solid product in a continuous manner.
  • the apparatus is made in a container housing.
  • Feeding the mineral additive of appropriate grain size into the process significantly improves the efficiency of removing solid products formed in the process because in the reactor they condensate on the particles of the fed additive, and then their sedimentation and agglomeration takes place, which allows easier discharging of agglomerated solid product from the reactor in a continuous manner.
  • the mineral additive significantly improves the homogenisation of the feedstock and facilitates the transfer of heat which is necessary for the reaction. Consequently it causes the formation of smaller temperature gradients in the reaction mixture and reduces the separation of solid products of the reaction.
  • Changing the movement direction of the reaction mixture in the receiving area for solid products in the reactor allows to increase the residence time in the reactor and to increase the efficiency of agglomeration of the solid products on the particles of the mineral additive.
  • Continuous discharge of solid reaction products helps to avoid maintenance shut-downs necessary to remove the resulting solid products which significantly impair the capacity of the system and significantly reduce its energy efficiency.
  • Execution of the apparatus in a container housing gives the possibility of a quick and cheap change of the plant location without dismantling and building a permanent infrastructure at the site of operation.
  • Fig. L is a schematic diagram of an apparatus for the thermal processing of waste plastics
  • Fig. 2 is a schematic diagram of the mixing elements in the area of discharging solid products
  • An apparatus for the continuous thermal processing of waste plastics consists of a system of dosing raw material in the form of chaff, granules or agglomerates along with the mineral additive, an extruder in which the feedstock gains plasticity and the pyrolysis process starts, a decomposition reactor equipped with mixing elements wherein the formation of the hydrocarbon product takes place and a system of receiving and separating products, and an automatic control system.
  • the solid products formed in the process condensate on the particles of the catalyst fed and then their sedimentation and agglomeration take place, and the agglomerated solid product is discharged in a continuous manner from the reactor.
  • An apparatus for continuous thermal processing of waste plastics is shown in fig. 1 . It consists of a thickener 7 into which raw material in the form of chaff, granules or agglomerates is fed along with the mineral additive, an extruder 6 in which the feedstock gains plasticity and the pyrolysis process starts, a decomposition reactor 1 equipped with mixing elements 2 wherein the formation of the hydrocarbon product takes place.
  • the volatile products 9 emerge from the reactor 1 to the condenser 8, from which, after cooling, they are transported by gravity to the intermediate tank 11 . Periodically, the intermediate tank 11 is emptied and the liquid products are transported via the light and medium oil fraction pump 13 into the light and medium oil fraction collecting tank 12.
  • the ingredients not undergoing condensation are discharged through the degassing system 3 and used for energy purposes of the plant.
  • the solid products of the process are removed in a continuous manner 4 and deposited 5. Then, some of them after grinding are fed to the thickener, together with the polymer feedstock.
  • the condenser is equipped with a heat removal system comprising a fan 10, a coolant pump 14 and a heat exchanger 15.
  • the mixing elements 2 in the area of separating solid products, shown in fig. 2, are adapted for changing the movement direction of the reaction mixture prolonging the residence time in the reaction zone. Recycling the reaction mixture is provided by modified geometry or rotation direction of the mixing elements in the area of separating the solid products in relation to other mixing elements.
  • the apparatus is made in a container housing allowing transportation without disassembling the apparatus and location without having to build a permanent infrastructure at the site of operation through powering by generators using part of the resulting volatile products.
  • the extruder was fed raw material having an average composition of: 67% of polyethylene, 18% of polypropylene, 5% of polystyrene and 10% of a mineral additive in the form of halloysite containing 90% of a fraction of 0.1 -1 mm at a rate of 120 kg/h.
  • the molten reaction mixture at a temperature of 380°C was fed into the reactor maintained at a temperature of 430°C. After 30 min. from the beginning of the dispensing, condensation of liquid products began at a rate of 109 kg/h.
  • the properties of the resultant liquid product are presented in Table 1 .
  • a solid product was discharged from the reactor at a rate of 6 kg/h and was characterized by a softening point of 58°C.
  • the extruder was fed raw material having an average composition of: 67% of polyethylene, 18% of polypropylene, 5% of polystyrene and 10% of a mineral additive in the form of a natural zeolite containing 92% of a fraction of 0.1 -1 mm at a rate of 200 kg/h.
  • the molten reaction mixture at a temperature of 365°C was fed into the reactor maintained at a temperature of 415°C. After 30 min. from the beginning of the dispensing, condensation of liquid products began at a rate of 184 kg/h.
  • Table 2 The properties of the resultant liquid product are presented in Table 2.
  • a solid product was discharged from the reactor at a rate of 9.5 kg/h and was characterized by a softening point of 60°C.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

L'objet de l'invention est un additif minéral, en particulier pour application dans le traitement continu de déchets de matières plastiques consistant à faire fondre la charge polymère formée à partir de ceux-ci sous la forme de paillettes, granulés ou agglomérats, soumettre la phase obtenue au procédé de pyrolyse ayant lieu dans l'extrudeuse (6) puis dans le réacteur (1) dans lequel un produit hydrocarbure est formé, caractérisé en ce qu'une fraction dotée d'une taille de grain dans la plage de 0,1 à 1 mm représente au moins 80 % en poids de l'additif, de préférence 90 % en poids de l'additif. L'objet de la présente invention concerne également un procédé qui utilise cet additif et un appareil permettant de mettre en oeuvre le procédé.
PCT/EP2015/070364 2014-09-05 2015-09-07 Additif minéral, en particulier pour application dans le traitement en continu de déchets matières plastiques, procédé qui utilise ledit additif et appareil permettant de mettre en oeuvre le procédé WO2016034739A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL409381A PL229433B1 (pl) 2014-09-05 2014-09-05 Addytyw mineralny, zwłaszcza do stosowania w procesie ciągłego przetwarzania odpadowych tworzyw sztucznych, sposób, w którym wykorzystuje się ten addytyw oraz urządzenie do realizacji tego sposobu
PLP.409381 2014-09-05

Publications (1)

Publication Number Publication Date
WO2016034739A1 true WO2016034739A1 (fr) 2016-03-10

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PCT/EP2015/070364 WO2016034739A1 (fr) 2014-09-05 2015-09-07 Additif minéral, en particulier pour application dans le traitement en continu de déchets matières plastiques, procédé qui utilise ledit additif et appareil permettant de mettre en oeuvre le procédé

Country Status (2)

Country Link
PL (1) PL229433B1 (fr)
WO (1) WO2016034739A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11999920B2 (en) 2020-09-14 2024-06-04 Ecolab Usa Inc. Cold flow additives for plastic-derived synthetic feedstock
US12031097B2 (en) 2021-10-14 2024-07-09 Ecolab Usa Inc. Antifouling agents for plastic-derived synthetic feedstocks

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL191650A1 (pl) 1976-08-04 1978-02-13 Budownictwa Ogolnego Row K Sposob zmiany rolki nosnej lancucha zwlaszcza w pojazdach gasienicowych
US4851601A (en) * 1988-01-19 1989-07-25 Mobil Oil Corporation Processing for producing hydrocarbon oils from plastic waste
WO1995003375A1 (fr) 1993-07-20 1995-02-02 Basf Aktiengesellschaft Procede de recyclage de matieres plastiques dans un vapocraqueur
JPH1192769A (ja) * 1997-09-19 1999-04-06 Mitsui Chem Inc プラスチックの油化方法
PL178639B1 (pl) 1993-04-03 2000-05-31 Veba Oel Ag Sposób przetwarzania starych lub odpadowych tworzyw sztucznych
WO2001005908A1 (fr) * 1999-07-16 2001-01-25 Enercon Technologies, Inc. Procede d'obtention d'essence et de diesel a partir de dechets plastiques et/ou de petrole lourd
PL339821A1 (en) 2000-04-20 2001-10-22 Izabella Bogacka Method of obtaining aliphatic hydrocarbons from a mixed plastic wastes
PL352341A1 (en) 2002-02-20 2003-08-25 Krzysztof Jarzecki Method of continually processing plastic wastes, in particular polyolefinic ones and plastic waste processing production line, in particular that for polyolefinic wastes
PL191341B1 (pl) 1999-12-23 2006-04-28 Agrob Eko Sp Z Oo Sposób wytwarzania paliw płynnych z odpadów z tworzyw sztucznych i urządzenie do realizacji tego sposobu
EP2327485A1 (fr) * 2008-08-20 2011-06-01 Kusatsu Electric Co., Ltd. Procédé de décomposition de matières plastiques/organiques usagées à l'aide de granules d'oxyde de titane avec des propriétés optimales des particules

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL191650A1 (pl) 1976-08-04 1978-02-13 Budownictwa Ogolnego Row K Sposob zmiany rolki nosnej lancucha zwlaszcza w pojazdach gasienicowych
US4851601A (en) * 1988-01-19 1989-07-25 Mobil Oil Corporation Processing for producing hydrocarbon oils from plastic waste
PL178639B1 (pl) 1993-04-03 2000-05-31 Veba Oel Ag Sposób przetwarzania starych lub odpadowych tworzyw sztucznych
WO1995003375A1 (fr) 1993-07-20 1995-02-02 Basf Aktiengesellschaft Procede de recyclage de matieres plastiques dans un vapocraqueur
JPH1192769A (ja) * 1997-09-19 1999-04-06 Mitsui Chem Inc プラスチックの油化方法
WO2001005908A1 (fr) * 1999-07-16 2001-01-25 Enercon Technologies, Inc. Procede d'obtention d'essence et de diesel a partir de dechets plastiques et/ou de petrole lourd
PL191341B1 (pl) 1999-12-23 2006-04-28 Agrob Eko Sp Z Oo Sposób wytwarzania paliw płynnych z odpadów z tworzyw sztucznych i urządzenie do realizacji tego sposobu
PL339821A1 (en) 2000-04-20 2001-10-22 Izabella Bogacka Method of obtaining aliphatic hydrocarbons from a mixed plastic wastes
PL352341A1 (en) 2002-02-20 2003-08-25 Krzysztof Jarzecki Method of continually processing plastic wastes, in particular polyolefinic ones and plastic waste processing production line, in particular that for polyolefinic wastes
EP2327485A1 (fr) * 2008-08-20 2011-06-01 Kusatsu Electric Co., Ltd. Procédé de décomposition de matières plastiques/organiques usagées à l'aide de granules d'oxyde de titane avec des propriétés optimales des particules

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11999920B2 (en) 2020-09-14 2024-06-04 Ecolab Usa Inc. Cold flow additives for plastic-derived synthetic feedstock
US12031097B2 (en) 2021-10-14 2024-07-09 Ecolab Usa Inc. Antifouling agents for plastic-derived synthetic feedstocks

Also Published As

Publication number Publication date
PL409381A1 (pl) 2016-03-14
PL229433B1 (pl) 2018-07-31

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