JPH07256228A - Contact thermal-decomposition of wood, carbohydrate and waste plastics - Google Patents
Contact thermal-decomposition of wood, carbohydrate and waste plasticsInfo
- Publication number
- JPH07256228A JPH07256228A JP5079394A JP5079394A JPH07256228A JP H07256228 A JPH07256228 A JP H07256228A JP 5079394 A JP5079394 A JP 5079394A JP 5079394 A JP5079394 A JP 5079394A JP H07256228 A JPH07256228 A JP H07256228A
- Authority
- JP
- Japan
- Prior art keywords
- thermal decomposition
- wood
- waste plastics
- gas
- grain size
- 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.)
- Pending
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- 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
- Y02W30/20—Waste processing or separation
-
- 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
- Y02W30/78—Recycling of wood or furniture waste
Landscapes
- Processing Of Solid Wastes (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は木材、炭水化物、廃プラ
スチック類を接触熱分解すると同時に有用な熱分解産物
を回収する方法を提供するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a method for catalytically pyrolyzing wood, carbohydrates, waste plastics and at the same time recovering useful pyrolysis products.
【０００２】[0002]
【従来の技術】本発明者らは、炭酸カルシウム、シリ
カ、アルミナ等の触媒粒子と石炭微粉末とから流動層を
形成し、石炭微粉末を熱分解する方法を以前に提案して
いる（特願平２−８３５５号）。この方法では、石炭の
熱分解産物のうち、付加価値の高い芳香族化合物である
ベンゼン、トルエン、キシレン、ナフタレン（以下ＢＴ
ＸＮと略記する）が出発石炭原料に対し1.7 重量％しか
得られなかった。2. Description of the Related Art The present inventors have previously proposed a method of pyrolyzing coal fine powder by forming a fluidized bed from catalyst fine particles such as calcium carbonate, silica, alumina and the like and coal fine powder. Wishhei 2-8355). In this method, among the thermal decomposition products of coal, benzene, toluene, xylene, and naphthalene (hereinafter referred to as BT), which are aromatic compounds with high added value.
(Abbreviated as XN) was obtained only at 1.7% by weight based on the starting coal raw material.
【０００３】そこで触媒としてCo-Mo 触媒、Ni-Mo 触
媒、あるいは硫化鉄触媒を使用することによりＢＴＸＮ
の収率を高める方法を提案した（特願平４−９７７０４
号）。この後者方法によれば石炭からＢＴＸＮが7.2 重
量％（対無水無灰炭基準）の収率で得られている。Therefore, by using a Co-Mo catalyst, a Ni-Mo catalyst, or an iron sulfide catalyst as a catalyst, BTXN
Proposed a method for increasing the yield of lactic acid (Japanese Patent Application No. 4-97704).
issue). According to this latter method, BTXN is obtained from coal in a yield of 7.2% by weight (based on anhydrous ashless coal).
【０００４】[0004]
【発明が解決しようとする課題】しかしながらこれらの
方法では、原料として石炭を使用しており、この石炭は
コストが高くつくだけでなく、将来的には枯渇する有限
な資源である。従ってこの有限で貴重な化石資源に頼る
ことなく付加価値の高い熱分解産物を得る方法の開発が
求められていた。However, in these methods, coal is used as a raw material, and this coal is not only costly but also a limited resource that will be exhausted in the future. Therefore, there has been a demand for development of a method for obtaining a thermal decomposition product with high added value without relying on this limited and precious fossil resource.
【０００５】今、木材資源、植物資源、およびそれらの
利用後の廃棄物、のみならず現在処理に困っている廃プ
ラスチック類を石炭に代えて使用した場合にも、石炭の
熱分解におけると同等以上の有用炭化水素化合物が得ら
れることが判明した。[0005] Now, not only wood resources, plant resources, and wastes after their use, but also waste plastics which are currently in trouble are used instead of coal, the same as in the thermal decomposition of coal. It was found that the above useful hydrocarbon compounds can be obtained.
【０００６】[0006]
【課題を解決するための手段】それゆえ本発明は、石炭
原料に代えて木材、炭水化物、廃プラスチック類を接触
熱分解する方法を提供するものである。すなわち本発明
は、１００〜１５００μｍの粒度を有する触媒粒子を、
水素、窒素およびスチームから選択された１種またはそ
れ以上のガスを用いて温度４５０〜７００℃で粉粒流動
層を形成させ、この流動層に、１〜２００μｍの粒度の
木材、炭水化物、廃プラスチック類の１種またはそれ以
上を供給し、これら木材、炭水化物、廃プラスチック類
の１種またはそれ以上を常圧〜６０Kg／cm2 ・Ｇの圧力
のもとに接触熱分解し、同時に有用な熱分解産物を回収
する方法を提供するものである。Therefore, the present invention provides a method for catalytically decomposing wood, carbohydrates, and waste plastics in place of coal raw materials. That is, the present invention provides catalyst particles having a particle size of 100 to 1500 μm,
One or more gases selected from hydrogen, nitrogen and steam are used to form a granular fluidized bed at a temperature of 450 to 700 ° C., and the fluidized bed is made of wood, carbohydrates and waste plastics having a particle size of 1 to 200 μm. One or more kinds of wood, carbohydrates, and one or more kinds of waste plastics are catalytically decomposed under atmospheric pressure to a pressure of 60 kg / cm 2 · G, and at the same time useful heat is supplied. It is intended to provide a method for recovering degradation products.
【０００７】本発明方法により生成する熱分解産物は、
前記芳香族化合物であるベンゼン、トルエン、キシレ
ン、ナフタレンに加え、メタン、エタン、エチレン、プ
ロパン、プロピレンのようなガス状炭化水素（以下炭化
水素ガスと略記する）、および炭化物であるチャーがあ
げられ、それらは分別回収される。本発明方法に使用さ
れる出発原料である木材、炭水化物、廃プラスチック類
の詳細な例をあげれば、木質系材料、植物およびその断
片またはそれらを含有する物質、例えば茎、麦わら、サ
トウキビ抽出残渣、製紙廃スラッジ、アルコール発酵残
渣等、およびプラスチック廃棄物である。The thermal decomposition product produced by the method of the present invention is
In addition to the aromatic compounds benzene, toluene, xylene, and naphthalene, gaseous hydrocarbons such as methane, ethane, ethylene, propane, and propylene (hereinafter abbreviated as hydrocarbon gas), and char that is a charcoal are listed. , They are collected separately. Specific examples of the starting materials used for the method of the present invention are wood, carbohydrates, waste plastics, wood-based materials, plants and fragments thereof or substances containing them, such as stems, straws, sugarcane extraction residues, Paper waste sludge, alcohol fermentation residue, and plastic waste.
【０００８】これら木材、炭水化物、廃プラスチック類
は４５０〜７００℃程度の温度にさらすと熱分解され
て、メタン、エチレン、等の炭化水素ガスや、分子量が
数１００程度のタール類と呼ばれる種類の炭化水素化合
物に一次分解される。これら分解物は４５０℃以上の温
度では通常気体であり、これらが本発明におけるように
適当な触媒および適当な流動化ガスを用いて反応させた
場合に、芳香族化合物であるベンゼン、トルエン、キシ
レン、などの付加価値の高い炭化水素化合物を生ずるも
のと見られる。These woods, carbohydrates, and waste plastics are thermally decomposed when exposed to a temperature of about 450 to 700 ° C., and hydrocarbon gases such as methane, ethylene, etc. and types of tars having a molecular weight of about several hundreds are called. Primary decomposition into hydrocarbon compounds. These decomposed products are usually gases at a temperature of 450 ° C. or higher, and when they are reacted with a suitable catalyst and a suitable fluidizing gas as in the present invention, aromatic compounds such as benzene, toluene and xylene are used. , Etc. are expected to produce high value-added hydrocarbon compounds.
【０００９】以下、本発明を図１に基づき説明する。粉
粒流動層接触熱分解装置２に触媒粒子を導入する。この
装置の下部から、水素、窒素およびスチームから選択さ
れた１種またはそれ以上の流動化ガスを供給して触媒粒
子の流動層を形成させ、ヒーター３によりこの流動層を
所定温度に加熱する。ここで触媒粒子としては１００〜
１５００μｍの粒度、好ましくは２５０μｍ〜５００μ
ｍを有するCo-Mo 触媒、 Ni-Mo触媒、FeS 2 （バイライ
ト）／Fe1-x S （ピロータイト）触媒粒子などの水素化
触媒が用いられる。The present invention will be described below with reference to FIG. Catalyst particles are introduced into the powder / particle fluidized bed catalytic pyrolysis device 2. One or more fluidizing gases selected from hydrogen, nitrogen and steam are supplied from the lower part of the apparatus to form a fluidized bed of catalyst particles, and the fluidized bed is heated to a predetermined temperature by the heater 3. Here, as the catalyst particles, 100 to
Particle size of 1500 μm, preferably 250 μm to 500 μm
A hydrogenation catalyst such as a Co-Mo catalyst having m, a Ni-Mo catalyst, or FeS 2 (bailite) / Fe 1-x S (pyrroite) catalyst particles is used.
【００１０】一方、木材、炭水化物、廃プラスチック類
の１種またはそれ以上の出発原料の１〜２００μｍの微
細な粒度のものを、微粒子供給器１から前記熱分解装置
２に供給し、前記触媒粒子の流動層に導入され、そこで
温度４５０〜７００℃、好ましくは５５０〜６００℃、
および常圧〜６０Kg／cm2 ・Ｇ、好ましくは常圧〜１Kg
／cm2 ・Ｇの圧力のもとに接触熱分解される。熱分解産
物のうち、固形物であるチャーと無機物はサイクロン４
で捕集される。ＢＴＸＮ等はコールドトラップ６により
捕集される。また、炭化水素ガスは、流動層形成に使用
されたガスと共に一部はガスバッグ５に捕集され、大部
分は放出後循環再使用される。On the other hand, one or more starting materials of wood, carbohydrates, waste plastics, which have a fine particle size of 1 to 200 μm, are supplied from the fine particle feeder 1 to the thermal decomposition apparatus 2 to obtain the catalyst particles. Is introduced into a fluidized bed at a temperature of 450-700 ° C., preferably 550-600 ° C.,
And normal pressure to 60 kg / cm 2 · G, preferably normal pressure to 1 kg
Catalytic thermal decomposition under a pressure of / cm 2 · G. Of pyrolysis products, solid chars and inorganics are cyclones 4.
Captured in. BTXN and the like are collected by the cold trap 6. A part of the hydrocarbon gas is collected in the gas bag 5 together with the gas used for forming the fluidized bed, and most of the hydrocarbon gas is circulated and reused after being discharged.
【００１１】本発明方法で使用される粉粒流動層接触熱
分解装置とは、１００〜１５００μｍ程度の粒子（ここ
では触媒粒子）をガスを用いて流動化させて流動層とな
し、そこに１〜２００μｍの微粒子となした木材、炭水
化物、廃プラスチック類を導入して反応させる装置であ
る。比較的粒度の低い出発原料の微粒子は、より粗い触
媒粒子の表面に付着し易いので、粉粒流動層においては
装置内での出発原料微粒子の滞留時間はガスのそれの約
数百倍とすることができる。The powder-particle fluidized bed catalytic thermal decomposition apparatus used in the method of the present invention is a fluidized bed in which particles (catalyst particles in this case) of about 100 to 1500 μm are fluidized to form a fluidized bed. This is an apparatus for introducing and reacting wood, carbohydrates, and waste plastics, which are made into fine particles of up to 200 μm. Since the starting material fine particles having a relatively small particle size tend to adhere to the surface of the coarser catalyst particles, the residence time of the starting material particles in the apparatus in the granular fluidized bed is about several hundred times that of gas. be able to.
【００１２】この出発原料微粒子の滞留時間と、好適な
触媒とを適当に選択することにより、ＢＴＸＮ等の収率
を高めることができる。本発明方法における出発原料で
ある木材、炭水化物、廃プラスチック類は、粉砕等の任
意の適当な手段により１〜２００μｍの微粒子となすこ
とができる。本発明方法においては、木質系物質、炭水
化物、廃プラスチック類のような産業廃棄物を再利用で
きるのみならず、同時に芳香族化合物、種々の炭化水素
ガス、チャー等の有用な熱分解産物を回収でき、工業上
非常に有用性が高い。By appropriately selecting the residence time of the starting material fine particles and a suitable catalyst, the yield of BTXN or the like can be increased. The starting materials in the method of the present invention, such as wood, carbohydrates, and waste plastics, can be made into fine particles of 1 to 200 μm by any suitable means such as grinding. In the method of the present invention, not only can industrial waste such as wood-based substances, carbohydrates, and waste plastics be reused, but at the same time, useful thermal decomposition products such as aromatic compounds, various hydrocarbon gases, and char can be recovered. It can be done and is very useful industrially.
【００１３】本発明で使用される水素、窒素およびスチ
ームから選択される１種またはそれ以上のガスは、水素
またはスチームまたはそれらの混合物が好ましく、特に
水素が好ましい。これらガスは熱分解装置から回収し循
環再利用できるので経済的である。以下に本発明の実施
例をあげる。The one or more gases selected from hydrogen, nitrogen and steam used in the present invention are preferably hydrogen or steam or a mixture thereof, particularly preferably hydrogen. These gases are economical because they can be recovered from the thermal decomposition device and recycled. Examples of the present invention will be given below.
【００１４】[0014]
実施例１ 内径２．５ｃｍ、高さ７０ｃｍを有する、図１に示すよ
うな流動層接触熱分解装置に、２５０〜１０００μｍの
粒度、平均３７０μｍの粒度を有するCo-Mo 触媒を静止
層高で８ｃｍまで充填し、空筒基準ガス速度３２ｃｍ／
秒で、水素ガスを用い温度５８０℃で流動化させた。そ
こへ平均粒子径８０μｍの木材チップを供給して常圧下
で４０分間接触熱分解させた。Example 1 A Co-Mo catalyst having a particle size of 250 to 1000 μm and an average particle size of 370 μm was placed in a fluidized bed catalytic pyrolysis apparatus having an inner diameter of 2.5 cm and a height of 70 cm as shown in FIG. Filled up to, empty cylinder standard gas velocity 32cm /
In seconds, hydrogen gas was used and fluidized at a temperature of 580 ° C. A wood chip having an average particle diameter of 80 μm was supplied thereto, and contact pyrolysis was carried out for 40 minutes under normal pressure.
【００１５】２種類の木材チップを使用して熱分解を行
った後の分解生成物を分析した結果を図２、図３、図４
および図５に示す。図２〜図５から明らかなとおり、芳
香族化合物であるベンゼン、トルエン、キシレン、ナフ
タレン等の液状化合物は出発原料である木材チップの重
量に基づき約６％（図２）の収率で得られ、一方炭化水
素ガスであるメタン、エタン、エチレン、プロパン、プ
ロピレン等のガス状成分は約１５％（図３）の収率で得
られた。これら炭化水素ガスは流動層形成に使用された
ガスと共に大部分は循環再使用された。The results of analyzing the decomposition products after pyrolysis using two types of wood chips are shown in FIGS. 2, 3 and 4.
And shown in FIG. As is clear from FIGS. 2 to 5, liquid compounds such as benzene, toluene, xylene, and naphthalene, which are aromatic compounds, were obtained in a yield of about 6% (FIG. 2) based on the weight of the starting wood chips. On the other hand, hydrocarbon components such as methane, ethane, ethylene, propane and propylene were obtained in a yield of about 15% (Fig. 3). Most of these hydrocarbon gases were circulated and reused together with the gas used for fluidized bed formation.
【００１６】また図４および図５に示すとおり、木材チ
ップを熱分解させる場合は、反応温度は５９０℃が最適
で、６１０℃まで上げると芳香族化合物ＢＴＸＮの収率
が急激に減少し、炭化水素ガスの生成が急増することが
分かる。 実施例２ 内径２．５ｃｍ、高さ７０ｃｍを有する、図１に示すよ
うな流動層接触熱分解装置に、２５０〜１２００μｍ、
平均４８０μｍの粒度を有するシリカ触媒粒子を静止層
高で８ｃｍまで充填し、空筒基準ガス速度５０ｃｍ／秒
で、水素ガスを用い温度５８０℃で流動化させた。そこ
へ平均粒子径８０μｍの木材チップを供給して常圧下で
４０分間接触熱分解させた。As shown in FIGS. 4 and 5, when the wood chips are pyrolyzed, the reaction temperature is optimally 590 ° C. When the temperature is raised to 610 ° C., the yield of the aromatic compound BTXN sharply decreases and carbonization occurs. It can be seen that the production of hydrogen gas increases sharply. Example 2 A fluidized bed catalytic pyrolysis apparatus having an inner diameter of 2.5 cm and a height of 70 cm as shown in FIG.
Silica catalyst particles having an average particle size of 480 μm were filled to a height of the stationary layer of 8 cm, and fluidized at a temperature of 580 ° C. with hydrogen gas at an empty space standard gas velocity of 50 cm / sec. A wood chip having an average particle diameter of 80 μm was supplied thereto, and contact pyrolysis was carried out for 40 minutes under normal pressure.
【００１７】芳香族化合物であるベンゼン、トルエン、
キシレン、ナフタレン等の液状化合物が木材チップに基
づき約１．５重量％の収率で得られ、一方炭化水素ガス
であるメタン、エタン、エチレン、プロパン、プロピレ
ン等のガス状成分が約５．５％の収率で得られた。Aromatic compounds such as benzene, toluene,
Liquid compounds such as xylene and naphthalene are obtained in a yield of about 1.5% by weight based on wood chips, while gaseous components such as hydrocarbon gases methane, ethane, ethylene, propane and propylene are about 5.5. % Yield.
【００１８】[0018]
【発明の効果】本発明によれば、出発原料として石炭を
使用することなく、木質系物質、炭水化物、廃プラスチ
ック類のような産業廃棄物を利用できるのみならず、同
時に芳香族化合物、種々の炭化水素ガス、チャー等の有
用な熱分解産物を回収でき、工業上非常に有用性が高
い。Industrial Applicability According to the present invention, industrial wastes such as wood-based substances, carbohydrates, and waste plastics can be utilized without using coal as a starting material, and at the same time, aromatic compounds and various It can collect useful thermal decomposition products such as hydrocarbon gas and char, and is highly useful in industry.
【図１】本発明の工程を示す図である。FIG. 1 is a diagram showing a process of the present invention.
【図２】分解生成物中に占める芳香族炭化水素化合物の
収率を示すグラフである。FIG. 2 is a graph showing the yield of aromatic hydrocarbon compounds in the decomposition products.
【図３】分解生成物中に占める炭化水素ガスの収率を示
すグラフである。FIG. 3 is a graph showing the yield of hydrocarbon gas in the decomposition products.
【図４】芳香族炭化水素化合物の収率に及ぼす反応温度
の影響を示すグラフである。FIG. 4 is a graph showing the influence of reaction temperature on the yield of aromatic hydrocarbon compounds.
【図５】炭化水素ガスの収率に及ぼす反応温度の影響を
示すグラフである。FIG. 5 is a graph showing the effect of reaction temperature on the yield of hydrocarbon gas.
１ 微粒子供給器 ２ 粉粒流動層接触熱分解装置 ３ ヒーター ４ サイクロン ５ ガスバッグ ６ コールドトラップ 1 Fine particle feeder 2 Powder-particle fluidized bed catalytic pyrolysis device 3 Heater 4 Cyclone 5 Gas bag 6 Cold trap
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ１０Ｇ 1/00 Ｂ 2115−4Ｈ 1/10 2115−4Ｈ 11/18 6958−4Ｈ Ｃ１０Ｊ 3/00 Ａ Ｂ０９Ｂ 3/00 ３０２ Ａ (72)発明者 神田 伸靖 千葉県市原市八幡海岸通１番地 三井造船 株式会社千葉事業所内 (72)発明者 阿部 一雄 東京都中央区築地５丁目６番４号 三井造 船株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location C10G 1/00 B 2115-4H 1/10 2115-4H 11/18 6958-4H C10J 3/00 A B09B 3/00 302 A (72) Inventor Shinyasu Kanda 1 Yawata Kaigan Dori, Ichihara-shi, Chiba Mitsui Engineering & Shipbuilding Co., Ltd. Chiba Works (72) Kazuo Abe 5-6-4 Tsukiji, Chuo-ku, Tokyo Mitsui Engineering & Shipbuilding Within the corporation
Claims (4)
媒粒子を、水素、窒素およびスチームから選択された１
種またはそれ以上のガスを用いて温度４５０〜７００℃
で粉粒流動層を形成させ、この流動層に、１〜２００μ
ｍの粒度の木材、炭水化物、廃プラスチック類の１種ま
たはそれ以上を供給し、これら木材、炭水化物、廃プラ
スチック類の１種またはそれ以上を常圧〜６０Kg／cm2
・Ｇの圧力のもとに接触熱分解し、同時に有用な熱分解
産物を回収する方法。1. Catalyst particles having a particle size of 100 to 1500 μm are selected from the group consisting of hydrogen, nitrogen and steam.
Temperature 450-700 ° C with one or more gases
To form a powder-grain fluidized bed with 1 to 200 μm.
One or more of wood, carbohydrates, waste plastics of m particle size are supplied, and one or more of these woods, carbohydrates, waste plastics are supplied under atmospheric pressure to 60 kg / cm 2
-A method of performing catalytic thermal decomposition under the pressure of G and simultaneously recovering a useful thermal decomposition product.
て圧力が常圧〜１Kg／cm2 ・Ｇである請求項１記載の方
法。2. The method according to claim 1, wherein the temperature is 550 to 600 ° C. and the pressure is atmospheric pressure to 1 kg / cm 2 · G.
は２項記載の方法。3. The method according to claim 1, wherein the gas is hydrogen gas.
項のいずれか１項記載の方法。4. The temperature is 590 ° C. 3.
The method according to any one of paragraphs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5079394A JPH07256228A (en) | 1994-03-22 | 1994-03-22 | Contact thermal-decomposition of wood, carbohydrate and waste plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5079394A JPH07256228A (en) | 1994-03-22 | 1994-03-22 | Contact thermal-decomposition of wood, carbohydrate and waste plastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07256228A true JPH07256228A (en) | 1995-10-09 |
Family
ID=12868684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5079394A Pending JPH07256228A (en) | 1994-03-22 | 1994-03-22 | Contact thermal-decomposition of wood, carbohydrate and waste plastics |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07256228A (en) |
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-
1994
- 1994-03-22 JP JP5079394A patent/JPH07256228A/en active Pending
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