JPH1161148A - Treatment of waste plastic - Google Patents
Treatment of waste plasticInfo
- Publication number
- JPH1161148A JPH1161148A JP22534997A JP22534997A JPH1161148A JP H1161148 A JPH1161148 A JP H1161148A JP 22534997 A JP22534997 A JP 22534997A JP 22534997 A JP22534997 A JP 22534997A JP H1161148 A JPH1161148 A JP H1161148A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- dechlorinated
- treatment
- waste plastic
- pyrolysis
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、廃プラスチックの
処理方法に関し、さらに詳しくは、塩素を含む廃プラス
チックをダイオキシンなどの有毒ガスの発生なしに処理
する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating waste plastic, and more particularly to a method for treating waste plastic containing chlorine without generating toxic gas such as dioxin.
【０００２】[0002]
【発明の技術的背景】近年、ポリエチレン、ポリプロピ
レンなどのポリオレフィン、ポリ塩化ビニル、ポリエチ
レンテレフタレートなどの熱可塑性樹脂が包装材などの
広い分野で需要が増大している。そしてそれにともない
廃プラスチックの量も増加しており、その処理が大きな
社会問題となっている。また、いわゆる容器包装リサイ
クル法が施行され、熱可塑性樹脂製容器のリサイクルに
本格的に取り組まなければならなくなっており、そのリ
サイクル技術の確立が要請されている。BACKGROUND OF THE INVENTION In recent years, polyolefins such as polyethylene and polypropylene, and thermoplastic resins such as polyvinyl chloride and polyethylene terephthalate have been increasingly demanded in a wide range of fields such as packaging materials. The amount of waste plastic is also increasing, and its disposal is a major social problem. In addition, the so-called Containers and Packaging Recycling Law has been enforced, and it has become necessary to work on recycling of thermoplastic resin containers in earnest, and there is a demand for the establishment of recycling technology.
【０００３】廃プラスチックのリサイクル方法として
は、サーマル・リサイクル、マテリアル・リサイクルお
よびケミカル・リサイクルがある。サーマル・リサイク
ルは、廃プラスチックをボイラー燃料などの燃料として
利用する方法であるが、プラスチックは発熱量が大きい
ため燃焼炉を損傷したり、ダイオキシンなど有害物質を
発生するなどの問題がある。マテリアル・リサイクル
は、廃プラスチックを再度成形体に加工する方法である
が、分別が必要なため再生コストが高くなったり、製品
の品質が低下するなどの問題がある。[0003] Methods of recycling waste plastics include thermal recycling, material recycling and chemical recycling. Thermal recycling is a method in which waste plastic is used as fuel such as boiler fuel. However, plastic has a large calorific value, and thus has problems such as damage to a combustion furnace and generation of harmful substances such as dioxin. Material recycling is a method of processing waste plastic into a molded article again. However, since it requires separation, it has problems such as an increase in recycling cost and a decrease in product quality.
【０００４】ケミカル・リサイクルは、廃プラスチック
を分解して気体状および液状の炭化水素として燃料、化
学原料などに利用する方法であり、本来の物質循環の概
念に適合している。しかしながら廃プラスチック中にポ
リ塩化ビニルなどの塩素含有ポリマーが含まれる場合に
は、塩素を含む炭化水素が得られることになり、このよ
うな塩素を含む炭化水素は再利用の用途が限定される。[0004] Chemical recycling is a method in which waste plastics are decomposed and used as gaseous and liquid hydrocarbons for fuels, chemical raw materials, etc., and conforms to the original concept of material circulation. However, when a chlorine-containing polymer such as polyvinyl chloride is contained in the waste plastic, a hydrocarbon containing chlorine is obtained, and the use of such a hydrocarbon containing chlorine is limited.
【０００５】このためポリ塩化ビニルを含んだ廃プラス
チックであっても、広範囲で利用可能な炭化水素が得ら
れるようなケミカル・リサイクルの方法の出現が望まれ
ている。[0005] For this reason, even with waste plastics containing polyvinyl chloride, there is a demand for the emergence of a chemical recycling method capable of obtaining hydrocarbons that can be used in a wide range.
【０００６】[0006]
【発明の目的】本発明は、上記のような従来技術に鑑み
てなされたものであって、廃プラスチックがポリ塩化ビ
ニルなどの塩素含有ポリマーを含んでいても、塩素含有
量の極めて少ない炭化水素油を得ることができるような
廃プラスチックの処理方法を提供することを目的として
いる。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned prior art, and is intended to provide a hydrocarbon having a very low chlorine content even if the waste plastic contains a chlorine-containing polymer such as polyvinyl chloride. It is an object of the present invention to provide a method for treating waste plastic from which oil can be obtained.
【０００７】[0007]
【発明の概要】本発明に係る廃プラスチックの処理方法
は、廃プラスチックを圧縮・減容してペレットとした
後、該ペレットを熱分解装置で熱分解して、熱分解留出
油を生成し、次いで該熱分解留出油を水素化処理し塩素
を除去して脱塩素油とし、次いで該脱塩素油を、石油精
製プラント内で該プラント内の炭化水素油と混合して処
理している。SUMMARY OF THE INVENTION According to the present invention, there is provided a method for treating waste plastic, comprising compressing and reducing the volume of waste plastic into pellets, and thermally decomposing the pellets with a pyrolysis apparatus to produce a pyrolysis distillate. Then, the pyrolysis distillate is hydrotreated to remove chlorine to obtain dechlorinated oil, and then the dechlorinated oil is mixed and treated with hydrocarbon oil in the petroleum refining plant. .
【０００８】本発明では、前記廃プラスチックをペレッ
ト化する工程は、廃プラスチックを回収集積する場所の
近傍で実施され、前記熱分解装置で処理して熱分解留出
油を得る工程および脱塩素油を得る工程は、石油精製プ
ラント内またはその隣接地域で実施されることが好まし
い。In the present invention, the step of pelletizing the waste plastic is carried out in the vicinity of a place where the waste plastic is collected and collected. Is preferably carried out in a petroleum refining plant or in an area adjacent thereto.
【０００９】前記脱塩素油の石油精製プラントにおける
処理は、脱塩素油と原油とを混合して得られた混合油を
常圧蒸留装置によって行なう蒸留分離処理であるか、ま
たは脱塩素油と常圧蒸留装置の残油とを混合して得られ
た混合油を減圧蒸留装置によって行なう蒸留分離処理で
あることが好ましい。The treatment of the dechlorinated oil in the petroleum refining plant is a distillation separation treatment in which the mixed oil obtained by mixing the dechlorinated oil and the crude oil is subjected to a normal pressure distillation apparatus, or the dechlorinated oil and a crude oil are mixed. It is preferable that the mixed oil obtained by mixing the residual oil of the pressure distillation apparatus with the residual oil is subjected to a distillation separation treatment performed by a reduced pressure distillation apparatus.
【００１０】前記脱塩素油の石油精製プラントにおける
処理としては、脱塩素油を石油精製プラント内の留出油
または重質油と混合して行なう水素化脱硫処理、水素化
分解処理、流動接触分解処理、またはコーカー炉でのコ
ーキング処理が挙げられる。The processing of the above-mentioned dechlorinated oil in a petroleum refining plant includes hydrodesulfurization, hydrocracking, fluid catalytic cracking performed by mixing the dechlorinated oil with distillate or heavy oil in the petroleum refining plant. Treatment, or a coking treatment in a coker furnace.
【００１１】廃プラスチックを熱分解装置により熱分解
処理する際、前記熱分解留出油とともにボトムから残油
を抜き出し、この残油は、必要に応じて固形分を除去し
た後、水素化処理により塩素を除去して脱塩素油とし
て、石油精製プラント内で該プラント内の炭化水素油と
混合して処理することもできる。When the waste plastic is subjected to pyrolysis by a pyrolysis apparatus, residual oil is extracted from the bottom together with the pyrolyzed distillate, and the residual oil is subjected to hydrogenation treatment after removing solids if necessary. The chlorine can be removed and processed as a dechlorinated oil in a petroleum refining plant by mixing with hydrocarbon oil in the plant.
【００１２】[0012]
【発明の具体的説明】以下、本発明に係る廃プラスチッ
クの処理方法について具体的に説明する。本発明では、
廃プラスチックを圧縮・減容してペレットとした後、該
ペレットを熱分解装置で熱分解処理して熱分解留出油を
生成させ、次いで該熱分解留出油を水素化処理により塩
素を除去して脱塩素油とし、次いで該脱塩素油を、石油
精製プラント内で該プラント内の炭化水素油と混合して
処理している。DETAILED DESCRIPTION OF THE INVENTION The method for treating waste plastic according to the present invention will be specifically described below. In the present invention,
After compressing and reducing the volume of the waste plastic into pellets, the pellets are pyrolyzed by a pyrolysis apparatus to generate pyrolysis distillate, and then the pyrolysis distillate is subjected to hydrogenation to remove chlorine. Then, the dechlorinated oil is treated in a petroleum refining plant by mixing it with hydrocarbon oil in the plant.
【００１３】本発明で処理可能な廃プラスチックは、産
業廃棄物または一般廃棄物として排出される熱可塑性樹
脂である。その種類は特に限定されずポリエチレン、ポ
リプロピレンなどのポリオレフィン、ポリエチレンテレ
フタレートなどのポリエステル、ポリスチレン、ポリ塩
化ビニルなどの包装容器などに汎用されている熱可塑性
樹脂およびこれらが混合したものが挙げられる。特に本
発明では、ポリ塩化ビニルなどの塩素を含む熱可塑性樹
脂が混入していても分別処理をすることなく処理するこ
とができる。The waste plastics which can be treated in the present invention are thermoplastic resins discharged as industrial waste or general waste. The type is not particularly limited, and examples thereof include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate, and thermoplastic resins generally used for packaging containers such as polystyrene and polyvinyl chloride, and mixtures thereof. In particular, in the present invention, even if a chlorine-containing thermoplastic resin such as polyvinyl chloride is mixed, the treatment can be performed without performing the separation treatment.
【００１４】なお、一般の廃プラスチック中には、通常
ポリオレフィンが約６５％、ポリスチレンが約１５％、
ポリ塩化ビニルが約１０％、ポリエチレンテレフタレー
トが約５％、その他のプラスチックが約５％程度含まれ
ている。Incidentally, in general waste plastics, usually about 65% of polyolefin, about 15% of polystyrene,
It contains about 10% of polyvinyl chloride, about 5% of polyethylene terephthalate, and about 5% of other plastics.
【００１５】本発明に係る廃プラスチックの処理方法
は、廃プラスチックを圧縮・減容してペレットとした
後、該ペレットを熱分解装置で熱分解して熱分解留出油
を生成させ、次いで該熱分解留出油を水素化処理により
塩素を除去し脱塩素油とし、次いで該脱塩素油を石油精
製プラント内で該プラント内の炭化水素油と混合して処
理している。In the method for treating waste plastic according to the present invention, the waste plastic is compressed and reduced in volume to form pellets, and then the pellets are pyrolyzed by a pyrolysis apparatus to generate pyrolysis distillate. The pyrolysis distillate is subjected to hydrotreatment to remove chlorine to obtain dechlorinated oil, and then the dechlorinated oil is mixed with a hydrocarbon oil in the petroleum refining plant for treatment.
【００１６】以下、本発明を各工程に従って説明する。
廃プラスチックは、集積された後、圧縮・減容されペレ
ット化される。廃プラスチックの圧縮・減容は、廃棄物
の集積施設内または集積施設に近接する施設で行なわれ
ることが好ましい。廃プラスチックの圧縮・減容を廃棄
物の集積施設内または集積施設に近接する施設で行なう
と、廃プラスチックの貯蔵コストが低減され、また廃プ
ラスチックの熱分解処理をする施設への輸送コストが低
減されるため好ましい。Hereinafter, the present invention will be described in accordance with each step.
After being accumulated, the waste plastic is compressed, reduced in volume, and pelletized. The compression and volume reduction of the waste plastic is preferably performed in a waste accumulation facility or a facility adjacent to the waste accumulation facility. Compressing and reducing the volume of waste plastic in or near the waste accumulation facility reduces the cost of storing waste plastic and the cost of transporting waste plastic to facilities that thermally decompose it. Is preferred.
【００１７】本発明では廃プラスチックから得られたペ
レットを、まず熱分解処理をする。熱分解処理は廃プラ
スチックペレットを、熱分解装置で３００〜４５０℃、
好ましくは３５０〜４３０℃に加熱することにより行な
われる。熱分解処理により、熱分解装置から熱分解留出
油が得られる。このようにして得られた熱分解留出油中
には通常数百ｐｐｍの塩素が含まれている。In the present invention, pellets obtained from waste plastics are first subjected to a thermal decomposition treatment. Pyrolysis treatment uses waste plastic pellets at 300-450 ° C with a pyrolysis device.
It is preferably carried out by heating to 350 to 430 ° C. By the pyrolysis treatment, a pyrolysis distillate is obtained from the pyrolysis apparatus. The pyrolysis distillate thus obtained usually contains several hundred ppm of chlorine.
【００１８】このような熱分解処理を好ましくは４３０
℃以下、特に好ましくは３５０〜４３０℃の温度で行う
と、ガスラインの閉塞や熱分解装置のコーキング問題が
発生せず、安定した長期間運転が可能になり、熱分解油
の製造コストを低減することができる。Such a thermal decomposition treatment is preferably carried out at 430.
C. or lower, particularly preferably at a temperature of 350 to 430.degree. C., does not cause gas line clogging or caulking problems of the pyrolysis apparatus, enables stable long-term operation, and reduces the production cost of pyrolysis oil can do.
【００１９】廃プラスチックペレットの熱分解処理は、
廃プラスチックの集積施設内または該施設に近接する施
設で行なってもよく、また石油精製プラント内または該
プラントに近接する施設で行なってもよい。廃プラスチ
ックペレットの熱分解処理を廃プラスチックの集積施設
内または該施設に近接する施設で行なう場合は、輸送コ
ストが低減される。The thermal decomposition treatment of waste plastic pellets is as follows:
It may be carried out in a waste plastic accumulation facility or in a facility close to the facility, or in a petroleum refining plant or in a facility close to the plant. When the thermal decomposition treatment of the waste plastic pellets is performed in a waste plastic accumulation facility or in a facility close to the facility, transportation costs are reduced.
【００２０】次に、前記のようにして得られた熱分解留
出油を、石油精製プラント内または石油精製プラントに
隣接した施設内で、石油精製プラントから水素の供給を
受けて、水素化処理して塩素を除去する。Next, the pyrolysis distillate obtained as described above is subjected to hydrotreatment in a petroleum refining plant or a facility adjacent to the petroleum refining plant by receiving hydrogen from the petroleum refining plant. To remove chlorine.
【００２１】水素化処理は、熱分解留出油中に含まれる
塩素を極力除去するために行うものであり、従来知られ
た塩素除去方法が適用できる。本発明における脱塩素油
を得る水素化処理は、脱塩素化触媒としてパラジウム−
アルミナ系触媒などを用い、１００〜３００℃の温度
で、数１０ｋｇ／ｃｍ2の水素圧下で行なうことが好ま
しい。The hydrotreating is performed to remove chlorine contained in the pyrolysis distillate as much as possible, and a conventionally known chlorine removing method can be applied. In the present invention, the hydrotreatment for obtaining dechlorinated oil is carried out by using palladium as a dechlorination catalyst.
It is preferable to carry out the reaction under a hydrogen pressure of several tens of kg / cm 2 at a temperature of 100 to 300 ° C. using an alumina catalyst or the like.
【００２２】この水素化処理によって熱分解油中の塩素
が除去され、得られた脱塩素油中の塩素濃度を、後処理
に問題ない程度に低くすることができる。たとえば１ｐ
ｐｍ以下にすることができる。By this hydrogenation treatment, chlorine in the thermally decomposed oil is removed, and the chlorine concentration in the obtained dechlorinated oil can be reduced to such a level that there is no problem in post-treatment. For example, 1p
pm or less.
【００２３】次に、得られた脱塩素油は、石油精製プラ
ント内で該プラント内の炭化水素油と混合して処理され
る。廃プラスチックから得られた脱塩素油は、特に脱塩
素油の性状に近い石油精製プラント内の炭化水素油と混
合して、該石油プラント内で処理することが好ましい。Next, the obtained dechlorinated oil is treated in a petroleum refining plant by mixing it with a hydrocarbon oil in the plant. The dechlorinated oil obtained from the waste plastic is preferably mixed with a hydrocarbon oil in a petroleum refining plant having properties similar to those of the dechlorinated oil, and treated in the petroleum plant.
【００２４】以下、混合処理の具体例について述べる。
脱塩素油を、石油精製プラント内の原油と直接混合し、
得られる混合油を石油精製プラントの常圧蒸留装置によ
って蒸留分離処理する。また脱塩素油を、原油を常圧蒸
留した際の残油と混合し、得られる混合油を石油精製プ
ラントの減圧蒸留装置によって蒸留分離処理することも
できる。この蒸留分離工程以後は、従来の石油精製プラ
ント内で分留される炭化水素油と全く同様に扱うことが
できる。Hereinafter, a specific example of the mixing process will be described.
Dechlorinated oil is directly mixed with crude oil in oil refinery plant,
The obtained mixed oil is subjected to a distillation separation treatment by an atmospheric distillation unit of a petroleum refining plant. Further, the dechlorinated oil may be mixed with a residual oil obtained by distilling a crude oil under normal pressure, and the resulting mixed oil may be subjected to a distillation separation treatment by a reduced-pressure distillation apparatus of a petroleum refining plant. After this distillation separation step, it can be handled in exactly the same manner as the hydrocarbon oil fractionated in a conventional petroleum refining plant.
【００２５】さらに脱塩素油を、石油精製プラントで生
じた留出油または重質油と混合し、得られた混合油を水
素化脱硫処理することによって、軽油、灯油留分の多い
液体状炭化水素を得ることもできる。Further, the dechlorinated oil is mixed with a distillate oil or a heavy oil produced in a petroleum refining plant, and the resulting mixed oil is subjected to hydrodesulfurization treatment, thereby obtaining a liquid carbonized mixture containing a large amount of a light oil and kerosene fraction. Hydrogen can also be obtained.
【００２６】さらにまた脱塩素油を、石油精製プラント
で生じた重質油と混合し、得られた混合油を高温高圧下
に水素気流中で触媒を用いて分解するとともに水素化す
る水素化分解処理により、気体状および液体状炭化水素
を得ることもできる。Furthermore, hydrocracking in which dechlorinated oil is mixed with heavy oil produced in a petroleum refining plant, and the resulting mixed oil is decomposed using a catalyst in a stream of hydrogen under high temperature and high pressure using a catalyst and hydrogenated. By the treatment, gaseous and liquid hydrocarbons can also be obtained.
【００２７】また脱塩素油を、石油精製プラントで生じ
た重質油と混合し、得られた混合油を微小な粒状触媒を
流動化状態にして反応を行う流動接触分解処理により、
ガソリン留分が多い液体状炭化水素が得られる。The dechlorinated oil is mixed with heavy oil produced in a petroleum refining plant, and the resulting mixed oil is subjected to a fluid catalytic cracking treatment in which a fine granular catalyst is fluidized to carry out a reaction.
A liquid hydrocarbon rich in gasoline fraction is obtained.
【００２８】脱塩素油を、石油精製プラントで生じた重
質油と混合し、得られた混合油をコーカー炉でコーキン
グ処理すれば、コークス、気体および液体状炭化水素を
得ることができる。If the dechlorinated oil is mixed with heavy oil produced in a petroleum refining plant, and the resulting mixed oil is subjected to coking treatment in a coker furnace, coke, gas and liquid hydrocarbons can be obtained.
【００２９】本発明では、脱塩素油の処理を、石油精製
プラント内で行っているため、石油精製プラントを常圧
蒸留または減圧蒸留して得られた留出油で通常採用され
ている水素化処理条件を採用することができるととも
に、得られる脱塩素油は特に精製する必要はない。In the present invention, since the processing of the dechlorinated oil is carried out in a petroleum refining plant, the hydrogenation oil usually used in distillate obtained by normal or reduced pressure distillation of the petroleum refining plant is used. Processing conditions can be employed, and the resulting dechlorinated oil does not need to be particularly purified.
【００３０】本発明では、廃プラスチックペレットの熱
分解留出油を水素化処理して脱塩素油とし、この脱塩素
油からプロパン、ナフサ、灯油、軽油、燃料油などを得
ているため、得られた炭化水素などには塩素が含有され
ておらず、燃料、化学原料などとして用いることができ
る。In the present invention, the pyrolysis distillate of waste plastic pellets is hydrotreated to form dechlorinated oil, and propane, naphtha, kerosene, light oil, fuel oil and the like are obtained from this dechlorinated oil. The obtained hydrocarbons and the like do not contain chlorine and can be used as fuels and chemical raw materials.
【００３１】また既存の石油精製プラント内で脱塩素油
を、該プラント内の炭化水素油と混合処理しているた
め、処理コストの低減が可能となる。熱分解油を水素化
処理するための水素製造装置を新たに設置する必要もな
い。Since the dechlorinated oil is mixed with the hydrocarbon oil in the existing petroleum refining plant, the processing cost can be reduced. There is no need to newly install a hydrogen production device for hydrotreating pyrolysis oil.
【００３２】一方、廃プラスチックペレットを熱分解装
置で熱分解処理する際、熱分解留出油とともにボトムか
ら抜き出される残油は、必要に応じて固形分を除去した
後、水素化処理して塩素を除去して脱塩素残油とし、得
られた脱塩素残油を石油精製プラント内で該プラント内
の炭化水素油と混合して処理することもできる。On the other hand, when the waste plastic pellets are pyrolyzed by a pyrolysis apparatus, the residual oil extracted from the bottom together with the pyrolysis distillate is subjected to hydrogenation after removing solids as necessary. It is also possible to remove chlorine to obtain a dechlorinated residual oil, and to process the obtained dechlorinated residual oil by mixing it with a hydrocarbon oil in the petroleum refining plant.
【００３３】本発明の廃プラスチックの処理方法の具体
例としては以下のような例が挙げられる。たとえば自治
体が廃プラスチックを集積施設に収集して、この集積施
設内または集積施設に近接する施設で圧縮・減容してペ
レット化する。この廃プラスチックペレットを石油精製
プラント内あるいは近傍のサイロに搬入し、搬入された
廃プラスチックペレットは、石油精製プラント施設内あ
るいは近傍で上述のようにして熱分解処理をして熱分解
留出油とする。熱分解留出油を石油精製プラントから水
素の供給を受けて水素化処理して塩素を除去し、得られ
た脱塩素油を、石油精製プラント内で該プラント内の炭
化水素油と混合し処理する。Specific examples of the waste plastic treatment method of the present invention include the following examples. For example, a local government collects waste plastics in an accumulation facility, and compresses and reduces the volume of the waste plastic in or near the accumulation facility to form pellets. The waste plastic pellets are carried into a silo in or near the petroleum refining plant, and the carried waste plastic pellets are subjected to the pyrolysis treatment as described above in or near the petroleum refining plant facilities to form a pyrolysis distillate. I do. The pyrolysis distillate is supplied with hydrogen from a petroleum refining plant and hydrotreated to remove chlorine, and the resulting dechlorinated oil is mixed and treated with the hydrocarbon oil in the petroleum refining plant. I do.
【００３４】一方、熱分解装置で熱分解処理する際、ボ
トムから抜き出した残油は固形分を除去した後、水素化
処理により塩素を除去して脱塩素残油とし、石油精製プ
ラント内で該プラント内の炭化水素油と混合して処理す
る。この方法によると、熱分解処理設備のスケールメリ
ットが生かされ、単位処理量当りのコスト低減が期待で
きる。この例のフローチャート図を図１に示す。On the other hand, at the time of the thermal cracking treatment in the thermal cracking apparatus, the residual oil extracted from the bottom is subjected to a hydrogenation treatment to remove chlorine after removal of solids, thereby obtaining a dechlorinated residual oil. Mix and treat with hydrocarbon oil in the plant. According to this method, the economies of scale of the thermal decomposition processing equipment can be utilized, and cost reduction per unit processing amount can be expected. FIG. 1 shows a flowchart of this example.
【００３５】また、以下のような例も挙げられる。自治
体が廃プラスチックを集積施設に収集して、この集積施
設内または集積施設に近接する施設でペレット化および
熱分解処理をする。この熱分解生成物を簡易型の分留装
置で分留し、得られた熱分解留出油および残油を得る。
この熱分解留出油を、石油精製プラント内で該プラント
内の炭化水素油と混合して処理する。一方、残油は、上
記と同様に固形分を除去した後、水素化処理により塩素
を除去して脱塩素残油とし、得られた脱塩素残油を石油
精製プラント内で該プラント内の炭化水素油と混合して
処理する。この方法によると熱分解処理設備では精製油
を造る必要がなく簡易な設備でよく、公害防止機器の付
設も最小限とすることができる。The following example is also given. The local government collects waste plastics in a collection facility, and pelletizes and pyrolyzes the waste plastic in or near the collection facility. The pyrolysis product is fractionated by a simple fractionator to obtain the resulting pyrolysis distillate and residual oil.
This pyrolysis distillate is treated in a petroleum refining plant by mixing with the hydrocarbon oil in the plant. On the other hand, the residual oil is obtained by removing solids in the same manner as described above and then removing the chlorine by hydrogenation treatment to obtain a dechlorinated residual oil. Process by mixing with hydrogen oil. According to this method, it is not necessary to produce refined oil in the thermal decomposition treatment equipment, a simple equipment is required, and the installation of pollution control equipment can be minimized.
【００３６】[0036]
【発明の効果】本発明によると、ポリ塩化ビニルなどの
塩素含有ポリマーを含んだ廃プラスチックであっても、
広範囲に再利用可能なナフサ、灯油、軽油などの炭化水
素を得ることができる。According to the present invention, even a waste plastic containing a chlorine-containing polymer such as polyvinyl chloride,
A wide range of reusable hydrocarbons such as naphtha, kerosene and light oil can be obtained.
【図１】 本発明に係る廃プラスチックの処理方法を示
すフローチャート図である。FIG. 1 is a flowchart illustrating a method for treating waste plastic according to the present invention.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ０８Ｊ 11/12 ＺＡＢ Ｃ１０Ｇ 11/18 Ｃ１０Ｇ 7/00 45/02 11/18 45/10 Ｚ 45/02 47/00 45/10 65/04 47/00 65/10 65/04 67/02 65/10 Ｂ０９Ｂ 3/00 ＺＡＢＡ 67/02 ３０２Ａ // Ｂ２９Ｋ 105:26 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification code FI C08J 11/12 ZAB C10G 11/18 C10G 7/00 45/02 11/18 45/10 Z 45/02 47/00 45/10 65/04 47/00 65/10 65/04 67/02 65/10 B09B 3/00 ZABA 67/02 302A // B29K 105: 26
Claims (5)
トとした後、得られたペレットを熱分解装置で熱分解処
理して、熱分解留出油を生成させ、得られた熱分解留出
油を水素化処理により塩素を除去して脱塩素油とし、得
られた脱塩素油を、石油精製プラント内で該プラント内
の炭化水素油と混合して処理する廃プラスチックの処理
方法。After compressing and reducing the volume of waste plastic into pellets, the obtained pellets are subjected to a thermal decomposition treatment in a pyrolysis apparatus to generate a pyrolysis distillate, and the obtained pyrolysis distillate A method for treating waste plastics, wherein chlorine is removed by hydrotreating oil to form dechlorinated oil, and the obtained dechlorinated oil is mixed with hydrocarbon oil in a petroleum refining plant for treatment.
程は、廃プラスチックを回収集積する場所の近傍で実施
され、前記熱分解装置で処理して熱分解留出油を得る工
程および脱塩素油を得る工程は、石油精製プラント内ま
たはその隣接地域で実施される請求項１に記載の廃プラ
スチックの処理方法。2. The step of pelletizing the waste plastic is carried out in the vicinity of a place where the waste plastic is collected and collected, and a step of obtaining a pyrolysis distillate by treating with the pyrolysis apparatus and obtaining a dechlorinated oil. The method for treating waste plastic according to claim 1, wherein the step is performed in a petroleum refinery plant or in an area adjacent thereto.
る処理が、脱塩素油と原油とを混合して得られる混合油
を常圧蒸留装置によって行なう蒸留分離処理であるか、
または脱塩素油と常圧蒸留装置の残油と混合して得られ
る減圧蒸留装置によって行なう蒸留分離処理である請求
項１または２に記載の方法。3. The method according to claim 1, wherein the treatment of the dechlorinated oil in the petroleum refining plant is a distillation separation treatment in which a mixed oil obtained by mixing the dechlorinated oil and the crude oil is subjected to an atmospheric distillation apparatus.
The method according to claim 1 or 2, wherein the method is a distillation separation treatment performed by a reduced-pressure distillation apparatus obtained by mixing dechlorinated oil with the residual oil of an atmospheric distillation apparatus.
る処理が、脱塩素油と石油精製プラント内の留出油また
は重質油とを混合して行なう水素化脱硫処理、水素化分
解処理、流動接触分解処理またはコーカー炉でのコーキ
ング処理である請求項１または２に記載の方法。4. A process for treating said dechlorinated oil in a petroleum refining plant, wherein the dechlorinated oil is mixed with a distillate or heavy oil in the petroleum refining plant to perform hydrodesulfurization, hydrocracking, and fluidization. The method according to claim 1 or 2, which is a catalytic cracking treatment or a coking treatment in a coker furnace.
より熱分解する際、前記熱分解留出油とともにボトムか
ら残油を抜き出し、この残油は、必要に応じて固形分を
除去した後、水素化処理により塩素を除去して脱塩素油
として、石油精製プラント内で該プラント内の炭化水素
油と混合して処理する請求項１〜４のいずれかに記載の
方法。5. When the waste plastic pellets are pyrolyzed by a pyrolysis apparatus, residual oil is extracted from the bottom together with the pyrolysis distillate, and the residual oil is subjected to hydrogenation after removing solids as necessary. The method according to any one of claims 1 to 4, wherein chlorine is removed by treatment to produce a dechlorinated oil, and the oil is mixed with a hydrocarbon oil in the petroleum refining plant and treated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22534997A JPH1161148A (en) | 1997-08-21 | 1997-08-21 | Treatment of waste plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22534997A JPH1161148A (en) | 1997-08-21 | 1997-08-21 | Treatment of waste plastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1161148A true JPH1161148A (en) | 1999-03-05 |
Family
ID=16827956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22534997A Withdrawn JPH1161148A (en) | 1997-08-21 | 1997-08-21 | Treatment of waste plastic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1161148A (en) |
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|---|---|---|---|---|
| WO2007126120A1 (en) * | 2006-04-27 | 2007-11-08 | Jfe Chemical Corporation | Method for processing plastic and apparatus therefor |
| JP2007291290A (en) * | 2006-04-27 | 2007-11-08 | Jfe Chemical Corp | Method for treating plastic material |
| WO2007126121A1 (en) * | 2006-04-27 | 2007-11-08 | Jfe Chemical Corporation | Method for processing plastic and apparatus therefor |
| JP2007302766A (en) * | 2006-05-10 | 2007-11-22 | Jfe Chemical Corp | Method and apparatus for treating plastic |
| JP2007302732A (en) * | 2006-05-09 | 2007-11-22 | Jfe Chemical Corp | Method for treating plastic and method for producing benzene |
| JP2007332345A (en) * | 2006-05-15 | 2007-12-27 | Jfe Chemical Corp | Method for producing hydrocrackate, method for treating plastic and method for producing benzene |
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| US11499104B2 (en) | 2018-07-20 | 2022-11-15 | Neste Oyj | Purification of recycled and renewable organic material |
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-
1997
- 1997-08-21 JP JP22534997A patent/JPH1161148A/en not_active Withdrawn
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007291290A (en) * | 2006-04-27 | 2007-11-08 | Jfe Chemical Corp | Method for treating plastic material |
| WO2007126121A1 (en) * | 2006-04-27 | 2007-11-08 | Jfe Chemical Corporation | Method for processing plastic and apparatus therefor |
| WO2007126120A1 (en) * | 2006-04-27 | 2007-11-08 | Jfe Chemical Corporation | Method for processing plastic and apparatus therefor |
| JP2007302732A (en) * | 2006-05-09 | 2007-11-22 | Jfe Chemical Corp | Method for treating plastic and method for producing benzene |
| JP2007302766A (en) * | 2006-05-10 | 2007-11-22 | Jfe Chemical Corp | Method and apparatus for treating plastic |
| JP2007332345A (en) * | 2006-05-15 | 2007-12-27 | Jfe Chemical Corp | Method for producing hydrocrackate, method for treating plastic and method for producing benzene |
| JP2019534926A (en) * | 2016-10-11 | 2019-12-05 | サビック グローバル テクノロジーズ ベスローテン フェンノートシャップ | Maximizing high-value chemicals from mixed plastics using various steam cracker configurations |
| US11427782B2 (en) | 2018-07-20 | 2022-08-30 | Neste Oyj | Purification of recycled and renewable organic material |
| US11655422B2 (en) | 2018-07-20 | 2023-05-23 | Neste Oyj | Purification of recycled and renewable organic material |
| US11624030B2 (en) | 2018-07-20 | 2023-04-11 | Neste Oyj | Production of hydrocarbons from recycled or renewable organic material |
| US11499104B2 (en) | 2018-07-20 | 2022-11-15 | Neste Oyj | Purification of recycled and renewable organic material |
| JP2021531384A (en) * | 2018-07-20 | 2021-11-18 | ネステ オサケ ユキチュア ユルキネン | Purification of recycled and renewable organic materials |
| DE102019133911A1 (en) | 2018-12-28 | 2020-07-02 | Neste Oyj | Co-processing method |
| DE102019133911B4 (en) | 2018-12-28 | 2022-05-19 | Neste Oyj | Methods of co-processing |
| GB2580539B (en) * | 2018-12-28 | 2021-04-14 | Neste Oyj | Method for co-processing |
| GB2580539A (en) * | 2018-12-28 | 2020-07-22 | Neste Oyj | Method for co-processing |
| ES2769963A1 (en) * | 2018-12-28 | 2020-06-29 | Neste Oyj | Coprocessing method (Machine-translation by Google Translate, not legally binding) |
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