JPH0551586A - Method for converting garbage into oily matter - Google Patents
Method for converting garbage into oily matterInfo
- Publication number
- JPH0551586A JPH0551586A JP3237302A JP23730291A JPH0551586A JP H0551586 A JPH0551586 A JP H0551586A JP 3237302 A JP3237302 A JP 3237302A JP 23730291 A JP23730291 A JP 23730291A JP H0551586 A JPH0551586 A JP H0551586A
- Authority
- JP
- Japan
- Prior art keywords
- garbage
- reaction
- oily substance
- weight
- substance
- 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
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は生ゴミの油化処理方法に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil treatment method for garbage.
【０００２】[0002]
【従来技術及びその問題点】生ゴミは、人類の生活、生
産活動の過程で不可避的に生ずる余剰物質であってその
排出量は年々増加している。特に都市部においては生ゴ
ミの爆発的増加に対してその処分が飽和状態になりつつ
あり、重大な社会問題としてクローズアップされてい
る。従来、生ゴミは埋立処分されたりする場合が多かっ
たが、近年、環境汚染や埋立地の不足のため、その処理
が問題になっている。このため焼却による生ゴミ処理が
提案され、焼却場も数多く建設された。しかしながら、
生ゴミは一般に多量の水分を含有するため、この方法で
は水分の蒸発に多大な熱エネルギーを要し、助燃材とし
て重油等の燃料を必要とするため経済的でない。また焼
却処分の場合、二酸化炭素や窒素酸化物、硫黄酸化物等
の燃焼ガスを排出するだけでなく、ゴミのなかに有機塩
素系の化合物が含まれていると猛毒物質のダイオキシン
を発生させる可能性が有り、環境保持の観点からも問題
を有している。2. Description of the Related Art Raw garbage is a surplus substance that is inevitably generated in the course of human life and production activities, and its emission amount is increasing year by year. Especially in urban areas, the disposal of garbage is becoming saturated due to the explosive increase of garbage, and it has been highlighted as a serious social problem. In the past, raw garbage was often disposed of in landfill, but in recent years, its treatment has become a problem due to environmental pollution and lack of landfill. Therefore, garbage disposal by incineration was proposed, and many incinerators were constructed. However,
Since garbage generally contains a large amount of water, this method requires a large amount of heat energy to evaporate the water, and requires fuel such as heavy oil as a combustor, which is not economical. In addition, in the case of incineration, not only the combustion gases such as carbon dioxide, nitrogen oxides, sulfur oxides, etc. are discharged, but also dioxin, which is a deadly poisonous substance, can be generated if the organic chlorine compounds are contained in the garbage. There is a problem, and there is a problem from the viewpoint of environmental preservation.
【０００３】[0003]
【発明が解決しようとする課題】本発明は生ゴミを経済
的に処理すると同時に有用な物質に変換させて有効利用
するための方法を提供することをその課題とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for treating food waste economically and at the same time converting it into a useful substance for effective use.
【０００４】[0004]
【課題を解決するための手段】本発明によれば、生ゴミ
を、必要に応じてのアルカリ性物質の存在下、水性媒体
の存在下で高温高圧に保持し、油状物質に液化させるこ
とを特徴とする生ゴミの油化処理方法が提供される。According to the present invention, raw garbage is liquefied into an oily substance by being kept at high temperature and high pressure in the presence of an alkaline medium, if necessary, and in the presence of an aqueous medium. A method for oil treatment of raw garbage is provided.
【０００５】本発明において被処理原料として用いる生
ゴミとしては、台所厨芥や都市ゴミを始め、澱粉工場、
酒類製造工場、化学調味料製造工場等の食品工業から排
出される生ゴミ、製紙工業、繊維工業からの生ゴミ、農
水産廃棄物等とくに制約されない。In the present invention, raw garbage used as a raw material to be treated includes kitchen garbage, city refuse, starch factory,
There are no particular restrictions on raw garbage discharged from the food industry such as a liquor manufacturing factory and a chemical seasoning manufacturing factory, raw garbage from the paper manufacturing industry, the textile industry, and agricultural and marine waste.
【０００６】本発明の方法を実施するには、生ゴミを、
水性媒体の存在下で高温高圧条件に保持すればよい。必
要に応じてアルカリ性物質を触媒として添加するが、こ
の触媒として用いるアルカリ性物質としては、例えば、
水酸化ナトリウム、水酸化カリウム、炭酸ナトリウム、
炭酸カリウム、炭酸水素ナトリウム、炭酸水素カリウ
ム、ギ酸ナトリウム、ギ酸カリウム等のアルカリ金属化
合物や、酸化カルシウム、水酸化カルシウム、水酸化マ
グネシウム等のアルカリ土類金属化合物等が挙げられ
る。このようなアルカリ性物質の使用量は、生ゴミ１０
０重量部（乾燥物基準）に対し、０．１−５０重量部、
好ましくは１−２０重量部の割合である。水性媒体の存
在割合は、生ゴミ１００重量部（乾燥物基準）に対し、
１０−１０００重量部、好ましくは２０−６００重量部
の割合である。生ゴミは、一般には、含水状態で発生す
る。このような含水状態の生ゴミはその１００重量部当
り水分を９０重量部以上含む場合もある。この場合、そ
のまま反応処理に付することができるが、エネルギー的
には不利であるため、適当な手段により濃縮処理を行う
のが望ましい。一般には、濾過分離や、遠心分離等の機
械的分離法が採用される。To carry out the method of the present invention, the garbage is
It may be maintained under high temperature and high pressure conditions in the presence of an aqueous medium. If necessary, an alkaline substance is added as a catalyst. Examples of the alkaline substance used as this catalyst include:
Sodium hydroxide, potassium hydroxide, sodium carbonate,
Examples thereof include alkali metal compounds such as potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium formate and potassium formate, and alkaline earth metal compounds such as calcium oxide, calcium hydroxide and magnesium hydroxide. The amount of such alkaline substances used is 10
0.1 to 50 parts by weight based on 0 parts by weight (dry matter basis),
The proportion is preferably 1 to 20 parts by weight. The existence ratio of the aqueous medium is 100 parts by weight of the garbage (dry matter basis),
The proportion is 10-1000 parts by weight, preferably 20-600 parts by weight. Garbage is generally generated in a water-containing state. Such water-containing raw garbage may contain 90 parts by weight or more of water per 100 parts by weight thereof. In this case, the reaction treatment can be carried out as it is, but it is disadvantageous in terms of energy. Therefore, it is desirable to perform the concentration treatment by an appropriate means. Generally, mechanical separation methods such as filtration separation and centrifugation are adopted.
【０００７】本発明における反応処理は高温高圧下で実
施されるが、この場合、反応圧力は一般には２０−２２
０気圧、好ましくは４０−１７０気圧であり、反応温度
は一般には２００−４００℃、好ましくは２５０−３５
０℃、反応時間は５−１８０分である。本発明において
圧力は、水蒸気等の水性媒体による自己発生圧を利用す
ることができるが、必要に応じ、例えば、窒素ガス、炭
素ガス、アルゴンガス等を用いて加圧することもでき
る。本発明により得られた反応生成物は、油状物質と水
性物質とからなるが、この生成物は相分離性の良好なも
ので、静置により、油相と水相とに容易に分離させるこ
とができる。この生成物の相分離性の良いことは、本発
明の大きな特徴の１つである。反応生成物から油状物質
と水性媒体との間の密度差を利用した分離手段、例え
ば、前記静置による重力分離の他、遠心分離等を採用す
ることができる。本発明において、相分離性の良好な反
応生成物を得るには、分離された水相のｐＨが４−１
１、好ましくは６−１０になるようにアルカリ性物質の
添加量やその他の反応条件を調節するのがよい。The reaction treatment in the present invention is carried out at high temperature and high pressure, and in this case, the reaction pressure is generally 20-22.
The pressure is 0 atm, preferably 40-170 atm, and the reaction temperature is generally 200-400 ° C., preferably 250-35.
The reaction time is 5 to 180 minutes at 0 ° C. In the present invention, the pressure may be a self-generated pressure by an aqueous medium such as water vapor, but may be increased by using, for example, nitrogen gas, carbon gas, argon gas or the like, if necessary. The reaction product obtained by the present invention is composed of an oily substance and an aqueous substance, but this product has good phase-separability, and can be easily separated into an oil phase and an aqueous phase by standing. You can The good phase separation of this product is one of the major characteristics of the present invention. Separation means utilizing the density difference between the oily substance and the aqueous medium from the reaction product, for example, gravity separation by the above-mentioned stationary state, centrifugation, etc. can be adopted. In the present invention, in order to obtain a reaction product having good phase separation, the pH of the separated aqueous phase is 4-1.
It is advisable to adjust the addition amount of the alkaline substance and other reaction conditions so as to be 1, preferably 6-10.
【０００８】本発明方法を好ましく実施する場合、反応
装置としては、外部加熱型または熱交換型反応装置、即
ち、外部に電熱ヒータや、熱媒体による加熱機構を供え
た流通反応器を用いるのが有利である。このような反応
装置では、生ゴミは、その反応器を流通する間に所定の
反応温度に加熱されると共に、その反応温度に所定時間
保持された後、反応器から抜出される。When the method of the present invention is preferably carried out, an external heating type or heat exchange type reaction apparatus, that is, a flow reactor provided with an electric heater or a heating mechanism by a heating medium is used as a reaction apparatus. It is advantageous. In such a reaction apparatus, food waste is heated to a predetermined reaction temperature while flowing through the reactor, and is kept at the reaction temperature for a predetermined time and then extracted from the reactor.
【０００９】次に、本発明の好ましい実施態様につい
て、図面にそのフローシートを示す。図面において、１
は破砕分別装置、２は濃縮装置、３は反応装置、４は冷
却装置、５は分離装置を各示す。生ゴミはライン６によ
り破砕分離装置１に送られ、ここでより細かく砕かれ、
金属、ガラス等と分別される。金属、ガラス等はライン
７により除去され、全重量１００重量部に対し水分９０
重量部以上を含む生ゴミはライン８を介して濃縮装置２
に供給され、ここで濃縮処理される。得られた分離水は
ライン９により除去され、一方、濃縮処理された水分８
５重量部以下、通常７０−８０重量部の生ゴミは、必要
であればライン１１によりアルカリ性物質を添加された
後、ライン１０を通って反応装置３に導入される。この
反応装置は、熱交換型反応装置であり、加熱媒体がライ
ン１２から導入され、ライン１３から排出され、その間
に反応装置内の内容物を加熱する。Next, the flow chart of the preferred embodiment of the present invention is shown in the drawings. In the drawings, 1
Is a crushing / separating device, 2 is a concentrating device, 3 is a reaction device, 4 is a cooling device, and 5 is a separating device. The raw garbage is sent to the crushing / separating device 1 through the line 6, where it is crushed into finer particles,
Separated from metal and glass. Metals, glass, etc. are removed by line 7, and moisture is 90% against 100 parts by weight of total weight.
Garbage containing more than one part by weight is passed through line 8 to concentrator 2
And is concentrated there. The obtained separated water is removed by the line 9, while the concentrated water 8
5 parts by weight or less, usually 70-80 parts by weight of raw garbage is introduced into the reactor 3 through the line 10 after adding an alkaline substance through the line 11 if necessary. This reactor is a heat exchange type reactor, and a heating medium is introduced through a line 12 and discharged through a line 13, while heating the contents in the reactor.
【００１０】反応装置２内に導入された生ゴミ及びアル
カリ性物質は、反応装置内を、押出し流れとして、所定
速度で流通し、ライン１４より抜出され、その間に生ゴ
ミは反応処理を受け、油状物質に液化される。本発明の
場合、反応装置から抜出される反応生成物の温度は２０
０−４００℃、好ましくは２５０−３５０℃に規定する
のがよい。ライン１４によって抜出された反応生成物
は、冷却装置４に導入され、ここで１００℃以下に冷却
された後、ライン１５を通って分離装置５に導入され
る。この分離装置５としては、密度差を利用するものが
好ましく用いられ、静置槽や、遠心分離機等が用いられ
る。分離装置５からは、密度の小さな生成物がライン１
６を通って抜出され、一方、密度の大きな生成物がライ
ン１７を通って抜出される。The raw garbage and the alkaline substance introduced into the reaction apparatus 2 flow through the reaction apparatus as an extrusion flow at a predetermined speed and are withdrawn from the line 14, during which the raw refuse undergoes a reaction treatment, It liquefies into an oily substance. In the case of the present invention, the temperature of the reaction product withdrawn from the reactor is 20
It is preferable to specify 0-400 ° C, preferably 250-350 ° C. The reaction product extracted through the line 14 is introduced into the cooling device 4, where it is cooled to 100 ° C. or lower, and then introduced into the separating device 5 through the line 15. As the separating device 5, a device utilizing a density difference is preferably used, and a stationary tank, a centrifuge or the like is used. From the separation device 5, the product of low density is obtained in line 1.
6 is withdrawn, while the denser product is withdrawn via line 17.
【００１１】[0011]
【発明の効果】本発明によれば、従来その処理が問題に
なっていた生ゴミを、液体燃料（発熱量約８５００ｋｃ
ａｌ／ｋｇ）として有用な油状物質に変換させることが
できる。しかも、この場合、油状物質の収率は、乾燥有
機物基準でほぼ３０％もの高い値に達する。生ゴミがこ
のような液体燃料として有用な油状物質に高収率で変換
されることは本発明者らが初めて見出した意外な事実で
ある。その上、本発明により得られる油状物質は水性媒
体から容易に相分離するため、生成物からの油状物質の
分離回収は容易である。また、このことは、油状物質が
単に反応生成物を静置するだけで、水性媒体から分離で
きることを意味しており、蒸留、膜分離、有機溶媒を用
いる化学抽出等の分離法に比べて、技術的、経済的に非
常に有利である。According to the present invention, raw garbage, which has been a problem in its treatment in the past, can be treated with liquid fuel (a heating value of about 8500 kc).
It can be converted to an oily substance useful as al / kg). Moreover, in this case, the yield of the oily substance reaches a value as high as about 30% based on the dry organic matter. It is an unexpected fact that the present inventors have found for the first time that raw garbage is converted into an oily substance useful as such a liquid fuel in a high yield. Moreover, since the oily substance obtained by the present invention easily undergoes phase separation from the aqueous medium, the oily substance can be easily separated and recovered from the product. Further, this means that the oily substance can be separated from the aqueous medium simply by allowing the reaction product to stand, and compared with separation methods such as distillation, membrane separation, and chemical extraction using an organic solvent, Very technically and economically advantageous.
【００１２】[0012]
【実施例】次に本発明を実施例によりさらに詳細に説明
する。模擬的な生ゴミとして、表１に示すＡ、Ｂ二種類
の供試材を作製し、油化処理実験に用いた。この生ゴミ
は、Ａは含水率８０重量％、固形物中有機物含量９１重
量％、固形物中有機物含量９４重量％を示した。EXAMPLES Next, the present invention will be described in more detail by way of examples. Two types of test materials A and B shown in Table 1 were prepared as simulated raw garbage and used in the oil treatment treatment experiment. In this raw garbage, A had a water content of 80% by weight, an organic matter content in the solid matter of 91% by weight, and an organic matter content in the solid matter of 94% by weight.
【００１３】[0013]
【表１】 [Table 1]
【００１４】実施例１ 生ゴミＡ１００ｇを加圧反応容器中で、窒素ガスにより
１５０ｋｇ／ｃｍ2Ｇに加圧し、昇温速度約１０℃／分
で３２５℃まで加熱した。この場合、反応圧力は、圧力
調節弁により１５０ｋｇ／ｃｍ2Ｇに保った。この温度
で１時間保持した後に常温まで冷却し、反応生成物を反
応容器からガラス容器に取り出した。取り出し直後は懸
濁状態であったが、時間の経過とともに相分離が進行
し、約５分後には油状物質と水相の二つの相に分離し
た。両相をそれぞれわけ取り、油状物質４．３ｇを回収
した。供試材（乾燥有機物基準）に対する油状物質の収
率は約２４重量％で、その油状物質の発熱量は約８００
０ｋｃａｌ／ｋｇであった。Example 1 100 g of garbage A was pressurized to 150 kg / cm 2 G with nitrogen gas in a pressure reaction vessel and heated to 325 ° C. at a temperature rising rate of about 10 ° C./min. In this case, the reaction pressure was kept at 150 kg / cm 2 G by the pressure control valve. After holding at this temperature for 1 hour, it was cooled to room temperature, and the reaction product was taken out of the reaction container into a glass container. Although it was in a suspended state immediately after taking out, phase separation proceeded with the passage of time, and after about 5 minutes, it separated into two phases, an oily substance and an aqueous phase. Both phases were separated and 4.3 g of an oily substance was recovered. The yield of the oily substance with respect to the test material (dry organic matter standard) was about 24% by weight, and the calorific value of the oily substance was about 800.
It was 0 kcal / kg.
【００１５】実施例２ 生ゴミＡ１００ｇに触媒として炭酸ソーダを１ｇ添加
し、加圧反応容器中で、窒素ガスにより１５０ｋｇ／ｃ
ｍ2Ｇに加圧し、昇温速度約１０℃／分で３２５℃まで
加熱した。この場合、反応圧力は、圧力調節弁により１
５０ｋｇ／ｃｍ2Ｇに保った。この温度で１時間保持し
た後に常温まで冷却し、反応生成物を反応容器からガラ
ス容器に取り出した。取り出し直後は懸濁状態であった
が、時間の経過とともに相分離が進行し、約５分後には
油状物質と水相の二つの相に分離した。両相をそれぞれ
わけ取り、油状物質４．７ｇを回収した。供試材（乾燥
有機物基準）に対する油状物質の収率は約３０重量％
で、その油状物質の発熱量は約８５００ｋｃａｌ／ｋｇ
であった。Example 2 To 100 g of garbage A was added 1 g of sodium carbonate as a catalyst, and 150 kg / c of nitrogen gas was added in a pressure reaction vessel.
It was pressurized to m 2 G and heated to 325 ° C. at a temperature rising rate of about 10 ° C./min. In this case, the reaction pressure is 1 by the pressure control valve.
It was kept at 50 kg / cm 2 G. After holding at this temperature for 1 hour, it was cooled to room temperature, and the reaction product was taken out of the reaction container into a glass container. Although it was in a suspended state immediately after taking out, phase separation proceeded with the passage of time, and after about 5 minutes, it separated into two phases, an oily substance and an aqueous phase. Both phases were separated and 4.7 g of an oily substance was recovered. Yield of oily material is about 30% by weight based on the test material (based on dry organic matter)
And the calorific value of the oily substance is about 8500 kcal / kg
Met.
【００１６】実施例３ 生ゴミＢ１００ｇを加圧反応容器中で、窒素ガスにより
１５０ｋｇ／ｃｍ2Ｇに加圧し、昇温速度約１０℃／分
で、３２５℃まで加熱した。この場合、反応圧力は、圧
力調節弁により１５０ｋｇ／ｃｍ2Ｇに保った。この温
度で１時間保持した後に常温まで冷却し、反応生成物を
反応容器からガラス容器に取り出した。取り出し直後は
懸濁状態であったが、時間の経過とともに相分離が進行
し、約５分後には油状物質と水相の二つの相に分離し
た。両相をそれぞれわけ取り、油状物質４．０ｇを回収
した。供試材（乾燥有機物基準）に対する油状物質の収
率は約２１重量％、その油状物質の発熱量は約８０００
ｋｃａｌ／ｋｇであった。Example 3 100 g of garbage B was pressurized to 150 kg / cm 2 G with nitrogen gas in a pressure reaction vessel and heated to 325 ° C. at a temperature rising rate of about 10 ° C./min. In this case, the reaction pressure was kept at 150 kg / cm 2 G by the pressure control valve. After holding at this temperature for 1 hour, it was cooled to room temperature, and the reaction product was taken out of the reaction container into a glass container. Although it was in a suspended state immediately after taking out, phase separation proceeded with the passage of time, and after about 5 minutes, it separated into two phases, an oily substance and an aqueous phase. Both phases were separated and 4.0 g of an oily substance was recovered. The yield of the oily substance with respect to the sample material (based on dry organic matter) was about 21% by weight, and the calorific value of the oily substance was about 8000.
It was kcal / kg.
【００１７】実施例４ 生ゴミＢ１００ｇに触媒として炭酸ソーダを１ｇ添加
し、加圧反応容器中で、窒素ガスにより１５０ｋｇ／ｃ
ｍ2Ｇに加圧し、昇温速度約１０℃／分で３２５℃まで
加熱した。この場合、反応圧力は、圧力調節弁により１
５０ｋｇ／ｃｍ2Ｇに保った。この温度で１時間保持し
た後に常温まで冷却し、反応生成物を反応容器からガラ
ス容器に取り出した。取り出し直後は懸濁状態であった
が、時間の経過とともに相分離が進行し、約５分後には
油状物質と水相の二つの相に分離した。両相をそれぞれ
わけ取り、油状物質４．５ｇを回収した。供試材（乾燥
有機物基準）に対する油状物質の収率は約２４重量％
で、その油状物質の発熱量は８２００ｋｇ／ｃｍ2Ｇで
あった。Example 4 To 100 g of garbage B was added 1 g of sodium carbonate as a catalyst, and 150 kg / c of nitrogen gas was added in a pressure reaction vessel.
It was pressurized to m 2 G and heated to 325 ° C. at a temperature rising rate of about 10 ° C./min. In this case, the reaction pressure is 1 by the pressure control valve.
It was kept at 50 kg / cm 2 G. After holding at this temperature for 1 hour, it was cooled to room temperature, and the reaction product was taken out of the reaction container into a glass container. Although it was in a suspended state immediately after taking out, phase separation proceeded with the passage of time, and after about 5 minutes, it separated into two phases, an oily substance and an aqueous phase. Both phases were separated and 4.5 g of an oily substance was recovered. Yield of oily substance is about 24% by weight based on the test material (based on dry organic matter)
The calorific value of the oily substance was 8200 kg / cm 2 G.
【図１】本発明を実施する場合のフローシートの一例を
示す。FIG. 1 shows an example of a flow sheet for carrying out the present invention.
１ 破砕分別装置 ２ 濃縮装置 ３ 反応装置 ４ 冷却装置 ５ 分離装置 1 crushing / separating device 2 concentrating device 3 reaction device 4 cooling device 5 separating device
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成３年１２月１６日[Submission date] December 16, 1991
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Name of item to be corrected] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【書類名】 明細書[Document name] Statement
【発明の名称】 生ゴミの油化処理方法[Title of Invention] Oilification treatment method for raw garbage
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は生ゴミの油化処理方法に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil treatment method for garbage.
【０００２】[0002]
【従来技術及びその問題点】生ゴミは、人類の生活、生
産活動の過程で不可避的に生ずる余剰物質であってその
排出量は年々増加している。特に都市部においては生ゴ
ミの爆発的増加に対してその処分が飽和状態になりつつ
あり、重大な社会問題としてクローズアップされてい
る。従来、生ゴミは埋立処分されたりする場合が多かっ
たが、近年、環境汚染や埋立地の不足のため、その処理
が問題になっている。このため焼却による生ゴミ処理が
提案され、焼却場も数多く建設された。しかしながら、
生ゴミは一般に多量の水分を含有するため、この方法で
は水分の蒸発に多大な熱エネルギーを要し、助燃材とし
て重油等の燃料を必要とするため経済的でない。また焼
却処分の場合、二酸化炭素や窒素酸化物、硫黄酸化物等
の燃焼ガスを排出するだけでなく、ゴミのなかに有機塩
素系の化合物が含まれていると猛毒物質のダイオキシン
を発生させる可能性が有り、環境保持の観点からも問題
を有している。2. Description of the Related Art Raw garbage is a surplus substance that is inevitably generated in the course of human life and production activities, and its emission amount is increasing year by year. Especially in urban areas, the disposal of garbage is becoming saturated due to the explosive increase of garbage, and it has been highlighted as a serious social problem. In the past, raw garbage was often disposed of in landfill, but in recent years, its treatment has become a problem due to environmental pollution and lack of landfill. Therefore, garbage disposal by incineration was proposed, and many incinerators were constructed. However,
Since garbage generally contains a large amount of water, this method requires a large amount of heat energy to evaporate the water, and requires fuel such as heavy oil as a combustor, which is not economical. In addition, in the case of incineration, not only the combustion gases such as carbon dioxide, nitrogen oxides, sulfur oxides, etc. are discharged, but also dioxin, which is a deadly poisonous substance, can be generated if the organic chlorine compounds are contained in the garbage. There is a problem, and there is a problem from the viewpoint of environmental preservation.
【０００３】[0003]
【発明が解決しようとする課題】本発明は生ゴミを経済
的に処理すると同時に有用な物質に変換させて有効利用
するための方法を提供することをその課題とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for treating food waste economically and at the same time converting it into a useful substance for effective use.
【０００４】[0004]
【課題を解決するための手段】本発明によれば、生ゴミ
を、必要に応じてのアルカリ性物質の存在下、水性媒体
の存在下で高温高圧に保持し、油状物質に液化させるこ
とを特徴とする生ゴミの油化処理方法が提供される。According to the present invention, raw garbage is liquefied into an oily substance by being kept at high temperature and high pressure in the presence of an alkaline medium, if necessary, and in the presence of an aqueous medium. A method for oil treatment of raw garbage is provided.
【０００５】本発明において被処理原料として用いる生
ゴミとしては、台所厨芥や都市ゴミを始め、澱粉工場、
酒類製造工場、化学調味料製造工場等の食品工業から排
出される生ゴミ、製紙工業、繊維工業からの生ゴミ、農
水産廃棄物等とくに制約されない。In the present invention, raw garbage used as a raw material to be treated includes kitchen garbage, city refuse, starch factory,
There are no particular restrictions on raw garbage discharged from the food industry such as a liquor manufacturing factory and a chemical seasoning manufacturing factory, raw garbage from the paper manufacturing industry, the textile industry, and agricultural and marine waste.
【０００６】本発明の方法を実施するには、生ゴミを、
水性媒体の存在下で高温高圧条件に保持すればよい。必
要に応じてアルカリ性物質を触媒として添加するが、こ
の触媒として用いるアルカリ性物質としては、例えば、
水酸化ナトリウム、水酸化カリウム、炭酸ナトリウム、
炭酸カリウム、炭酸水素ナトリウム、炭酸水素カリウ
ム、ギ酸ナトリウム、ギ酸カリウム等のアルカリ金属化
合物や、酸化カルシウム、水酸化カルシウム、水酸化マ
グネシウム等のアルカリ土類金属化合物等が挙げられ
る。このようなアルカリ性物質の使用量は、生ゴミ１０
０重量部（乾燥物基準）に対し、０．１−５０重量部、
好ましくは１−２０重量部の割合である。水性媒体の存
在割合は、生ゴミ１００重量部（乾燥物基準）に対し、
１０−１０００重量部、好ましくは２０−６００重量部
の割合である。生ゴミは、一般には、含水状態で発生す
る。このような含水状態の生ゴミはその１００重量部当
り水分を９０重量部以上含む場合もある。この場合、そ
のまま反応処理に付することができるが、エネルギー的
には不利であるため、適当な手段により濃縮処理を行う
のが望ましい。一般には、濾過分離や、遠心分離等の機
械的分離法が採用される。To carry out the method of the present invention, the garbage is
It may be maintained under high temperature and high pressure conditions in the presence of an aqueous medium. If necessary, an alkaline substance is added as a catalyst. Examples of the alkaline substance used as this catalyst include:
Sodium hydroxide, potassium hydroxide, sodium carbonate,
Examples thereof include alkali metal compounds such as potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium formate and potassium formate, and alkaline earth metal compounds such as calcium oxide, calcium hydroxide and magnesium hydroxide. The amount of such alkaline substances used is 10
0.1 to 50 parts by weight based on 0 parts by weight (dry matter basis),
The proportion is preferably 1 to 20 parts by weight. The existence ratio of the aqueous medium is 100 parts by weight of the garbage (dry matter basis),
The proportion is 10-1000 parts by weight, preferably 20-600 parts by weight. Garbage is generally generated in a water-containing state. Such water-containing raw garbage may contain 90 parts by weight or more of water per 100 parts by weight thereof. In this case, the reaction treatment can be carried out as it is, but it is disadvantageous in terms of energy. Therefore, it is desirable to carry out the concentration treatment by an appropriate means. Generally, mechanical separation methods such as filtration separation and centrifugation are adopted.
【０００７】本発明における反応処理は高温高圧下で実
施されるが、この場合、反応圧力は一般には２０−２２
０気圧、好ましくは４０−１７０気圧であり、反応温度
は一般には２００−４００℃、好ましくは２５０−３５
０℃、反応時間は５−１８０分である。本発明において
圧力は、水蒸気等の水性媒体による自己発生圧を利用す
ることができるが、必要に応じ、例えば、窒素ガス、炭
素ガス、アルゴンガス等を用いて加圧することもでき
る。本発明により得られた反応生成物は、油状物質と水
性物質とからなるが、この生成物は相分離性の良好なも
ので、静置により、油相と水相とに容易に分離させるこ
とができる。この生成物の相分離性の良いことは、本発
明の大きな特徴の１つである。反応生成物から油状物質
と水性媒体との間の密度差を利用した分離手段、例え
ば、前記静置による重力分離の他、遠心分離等を採用す
ることができる。本発明において、相分離性の良好な反
応生成物を得るには、分離された水相のｐＨが４−１
１、好ましくは６−１０になるようにアルカリ性物質の
添加量やその他の反応条件を調節するのがよい。The reaction treatment in the present invention is carried out at high temperature and high pressure, and in this case, the reaction pressure is generally 20-22.
The pressure is 0 atm, preferably 40-170 atm, and the reaction temperature is generally 200-400 ° C., preferably 250-35.
The reaction time is 5 to 180 minutes at 0 ° C. In the present invention, the pressure may be a self-generated pressure by an aqueous medium such as water vapor, but may be increased by using, for example, nitrogen gas, carbon gas, argon gas or the like, if necessary. The reaction product obtained by the present invention is composed of an oily substance and an aqueous substance, but this product has good phase-separability, and can be easily separated into an oil phase and an aqueous phase by standing. You can The good phase separation of this product is one of the major characteristics of the present invention. Separation means utilizing the density difference between the oily substance and the aqueous medium from the reaction product, for example, gravity separation by the above-mentioned stationary state, centrifugation, etc. can be adopted. In the present invention, in order to obtain a reaction product having good phase separation, the pH of the separated aqueous phase is 4-1.
It is advisable to adjust the addition amount of the alkaline substance and other reaction conditions so as to be 1, preferably 6-10.
【０００８】本発明方法を好ましく実施する場合、反応
装置としては、外部加熱型または熱交換型反応装置、即
ち、外部に電熱ヒータや、熱媒体による加熱機構を供え
た流通反応器を用いるのが有利である。このような反応
装置では、生ゴミは、その反応器を流通する間に所定の
反応温度に加熱されると共に、その反応温度に所定時間
保持された後、反応器から抜出される。When the method of the present invention is preferably carried out, an external heating type or heat exchange type reaction apparatus, that is, a flow reactor provided with an electric heater or a heating mechanism by a heating medium is used as a reaction apparatus. It is advantageous. In such a reaction apparatus, food waste is heated to a predetermined reaction temperature while flowing through the reactor, and is kept at the reaction temperature for a predetermined time and then extracted from the reactor.
【０００９】次に、本発明の好ましい実施態様につい
て、図面にそのフローシートを示す。図面において、１
は破砕分別装置、２は濃縮装置、３は反応装置、４は冷
却装置、５は分離装置を各示す。生ゴミはライン６によ
り破砕分離装置１に送られ、ここでより細かく砕かれ、
金属、ガラス等と分別される。金属、ガラス等はライン
７により除去され、全重量１００重量部に対し水分９０
重量部以上を含む生ゴミはライン８を介して濃縮装置２
に供給され、ここで濃縮処理される。得られた分離水は
ライン９により除去され、一方、濃縮処理された水分８
５重量部以下、通常７０−８０重量部の生ゴミは、必要
であればライン１１によりアルカリ性物質を添加された
後、ライン１０を通って反応装置３に導入される。この
反応装置は、熱交換型反応装置であり、加熱媒体がライ
ン１２から導入され、ライン１３から排出され、その間
に反応装置内の内容物を加熱する。Next, the flow chart of the preferred embodiment of the present invention is shown in the drawings. In the drawings, 1
Is a crushing / separating device, 2 is a concentrating device, 3 is a reaction device, 4 is a cooling device, and 5 is a separating device. The raw garbage is sent to the crushing / separating device 1 through the line 6, where it is crushed into finer particles,
Separated from metal and glass. Metals, glass, etc. are removed by line 7, and moisture is 90% against 100 parts by weight of total weight.
Garbage containing more than one part by weight is passed through line 8 to concentrator 2
And is concentrated there. The obtained separated water is removed by the line 9, while the concentrated water 8
5 parts by weight or less, usually 70-80 parts by weight of raw garbage is introduced into the reactor 3 through the line 10 after adding an alkaline substance through the line 11 if necessary. This reactor is a heat exchange type reactor, and a heating medium is introduced through a line 12 and discharged through a line 13, while heating the contents in the reactor.
【００１０】反応装置３内に導入された生ゴミ及びアル
カリ性物質は、反応装置内を、押出し流れとして、所定
速度で流通し、ライン１４より抜出され、その間に生ゴ
ミは反応処理を受け、油状物質に液化される。本発明の
場合、反応装置から抜出される反応生成物の温度は２０
０−４００℃、好ましくは２５０−３５０℃に規定する
のがよい。ライン１４によって抜出された反応生成物
は、冷却装置４に導入され、ここで１００℃以下に冷却
された後、ライン１５を通って分離装置５に導入され
る。この分離装置５としては、密度差を利用するものが
好ましく用いられ、静置槽や、遠心分離機等が用いられ
る。分離装置５からは、密度の小さな生成物がライン１
６を通って抜出され、一方、密度の大きな生成物がライ
ン１７を通って抜出される。The raw garbage and the alkaline substance introduced into the reactor 3 flow through the inside of the reactor as an extrusion flow at a predetermined speed and are withdrawn from the line 14, during which the raw dust undergoes a reaction treatment. It liquefies into an oily substance. In the case of the present invention, the temperature of the reaction product withdrawn from the reactor is 20
It is preferable to specify 0-400 ° C, preferably 250-350 ° C. The reaction product extracted through the line 14 is introduced into the cooling device 4, where it is cooled to 100 ° C. or lower, and then introduced into the separating device 5 through the line 15. As the separating device 5, a device utilizing a density difference is preferably used, and a stationary tank, a centrifuge or the like is used. From the separation device 5, the product of low density is obtained in line 1.
6 is withdrawn, while the denser product is withdrawn via line 17.
【００１１】[0011]
【発明の効果】本発明によれば、従来その処理が問題に
なっていた生ゴミを、液体燃料（発熱量約８５００ｋｃ
ａｌ／ｋｇ）として有用な油状物質に変換させることが
できる。しかも、この場合、油状物質の収率は、有機物
基準でほぼ３０％もの高い値に達する。生ゴミがこのよ
うな液体燃料として有用な油状物質に高収率で変換され
ることは本発明者らが初めて見出した意外な事実であ
る。その上、本発明により得られる油状物質は水性媒体
から容易に相分離するため、生成物からの油状物質の分
離回収は容易である。また、このことは、油状物質が単
に反応生成物を静置するだけで、水性媒体から分離でき
ることを意味しており、蒸留、膜分離、有機溶媒を用い
る抽出等の分離法に比べて、技術的、経済的に非常に有
利である。According to the present invention, raw garbage, which has been a problem in its treatment in the past, can be treated with liquid fuel (a heating value of about 8500 kc).
It can be converted to an oily substance useful as al / kg). Moreover, in this case, the yield of the oily substance reaches a value as high as about 30% based on the organic substance. It is an unexpected fact that the present inventors have found for the first time that raw garbage is converted into an oily substance useful as such a liquid fuel in a high yield. Moreover, since the oily substance obtained by the present invention easily undergoes phase separation from the aqueous medium, the oily substance can be easily separated and recovered from the product. In addition, this means that the oily substance can be separated from the aqueous medium simply by allowing the reaction product to stand, and compared with separation methods such as distillation, membrane separation, and extraction using an organic solvent, the technical Very economically and economically
【００１２】[0012]
【実施例】次に本発明を実施例によりさらに詳細に説明
する。模擬的な生ゴミとして、Ａ、Ｂ二種類の供試試料
を調製し、油化処理実験に用いた。この生ゴミ試料は含
水状態の各素材に水を加えて混合した。この時の各素材
及び水の重量比を表１に示す。混合後の生ゴミの含水率
はＡ、Ｂともに８０重量％であった。また、固形分中の
有機物含量はＡが９１重量％、Ｂが９４重量％であっ
た。EXAMPLES Next, the present invention will be described in more detail by way of examples. Two types of test samples, A and B, were prepared as simulated garbage and used in the oil treatment experiment. This raw garbage sample was mixed by adding water to each of the water-containing materials. Table 1 shows the weight ratio of each material and water at this time. The water content of raw garbage after mixing was 80% by weight for both A and B. The organic content in the solid content was 91% by weight for A and 94% by weight for B.
【００１３】[0013]
【表１】 [Table 1]
【００１４】実施例１ 生ゴミＡ１００ｇを加圧反応容器中で、窒素ガスにより
１５０ｋｇ／ｃｍ2Ｇに加圧し、昇温速度約１０℃／分
で３２５℃まで加熱した。この場合、反応圧力は、圧力
調節弁により１５０ｋｇ／ｃｍ2Ｇに保った。この温度
で１時間保持した後に常温まで冷却し、反応生成物を反
応容器からガラス容器に取り出した。取り出し直後は懸
濁状態であったが、時間の経過とともに相分離が進行
し、約５分後には油状物質と水相の二つの相に分離し
た。両相をそれぞれわけ取り、油状物質４．３ｇを回収
した。供試試料（有機物基準）に対する油状物質の収率
は約２４重量％で、その油状物質の発熱量は約８０００
ｋｃａｌ／ｋｇであった。Example 1 100 g of garbage A was pressurized to 150 kg / cm 2 G with nitrogen gas in a pressure reaction vessel and heated to 325 ° C. at a temperature rising rate of about 10 ° C./min. In this case, the reaction pressure was kept at 150 kg / cm 2 G by the pressure control valve. After holding at this temperature for 1 hour, it was cooled to room temperature, and the reaction product was taken out of the reaction container into a glass container. Although it was in a suspended state immediately after taking out, phase separation proceeded with the passage of time, and after about 5 minutes, it separated into two phases, an oily substance and an aqueous phase. Both phases were separated and 4.3 g of an oily substance was recovered. The yield of the oily substance was about 24% by weight based on the test sample (organic matter basis), and the calorific value of the oily substance was about 8,000.
It was kcal / kg.
【００１５】実施例２ 生ゴミＡ１００ｇに触媒として炭酸ナトリウムを１ｇ添
加し、加圧反応容器中で、窒素ガスにより１５０ｋｇ／
ｃｍ2Ｇに加圧し、昇温速度約１０℃／分で３２５℃ま
で加熱した。この場合、反応圧力は、圧力調節弁により
１５０ｋｇ／ｃｍ2Ｇに保った。この温度で１時間保持
した後に常温まで冷却し、反応生成物を反応容器からガ
ラス容器に取り出した。取り出し直後は懸濁状態であっ
たが、時間の経過とともに相分離が進行し、約５分後に
は油状物質と水相の二つの相に分離した。両相をそれぞ
れわけ取り、油状物質５．４ｇを回収した。供試試料
（有機物基準）に対する油状物質の収率は約３０重量％
で、その油状物質の発熱量は約８５００ｋｃａｌ／ｋｇ
であった。Example 2 To 100 g of garbage A was added 1 g of sodium carbonate as a catalyst, and 150 kg / g of nitrogen gas was added in a pressure reaction vessel.
It was pressurized to cm 2 G and heated to 325 ° C. at a temperature rising rate of about 10 ° C./min. In this case, the reaction pressure was kept at 150 kg / cm 2 G by the pressure control valve. After holding at this temperature for 1 hour, it was cooled to room temperature, and the reaction product was taken out of the reaction container into a glass container. Although it was in a suspended state immediately after taking out, phase separation proceeded with the passage of time, and after about 5 minutes, it separated into two phases, an oily substance and an aqueous phase. Both phases were separated and 5.4 g of an oily substance was recovered. Yield of oily substance is about 30% by weight based on sample (organic matter basis)
And the calorific value of the oily substance is about 8500 kcal / kg
Met.
【００１６】実施例３ 生ゴミＢ１００ｇを加圧反応容器中で、窒素ガスにより
１５０ｋｇ／ｃｍ2Ｇに加圧し、昇温速度約１０℃／分
で、３２５℃まで加熱した。この場合、反応圧力は、圧
力調節弁により１５０ｋｇ／ｃｍ2Ｇに保った。この温
度で１時間保持した後に常温まで冷却し、反応生成物を
反応容器からガラス容器に取り出した。取り出し直後は
懸濁状態であったが、時間の経過とともに相分離が進行
し、約５分後には油状物質と水相の二つの相に分離し
た。両相をそれぞれわけ取り、油状物質４．０ｇを回収
した。供試試料（有機物基準）に対する油状物質の収率
は約２１重量％、その油状物質の発熱量は約８０００ｋ
ｃａｌ／ｋｇであった。Example 3 100 g of garbage B was pressurized to 150 kg / cm 2 G with nitrogen gas in a pressure reaction vessel and heated to 325 ° C. at a temperature rising rate of about 10 ° C./min. In this case, the reaction pressure was kept at 150 kg / cm 2 G by the pressure control valve. After holding at this temperature for 1 hour, it was cooled to room temperature, and the reaction product was taken out of the reaction container into a glass container. Although it was in a suspended state immediately after taking out, phase separation proceeded with the passage of time, and after about 5 minutes, it separated into two phases, an oily substance and an aqueous phase. Both phases were separated and 4.0 g of an oily substance was recovered. The yield of the oily substance is about 21% by weight, and the calorific value of the oily substance is about 8000 k, relative to the test sample (organic matter basis).
It was cal / kg.
【００１７】実施例４ 生ゴミＢ１００ｇに触媒として炭酸ナトリウムを１ｇ添
加し、加圧反応容器中で、窒素ガスにより１５０ｋｇ／
ｃｍ2Ｇに加圧し、昇温速度約１０℃／分で３２５℃ま
で加熱した。この場合、反応圧力は、圧力調節弁により
１５０ｋｇ／ｃｍ2Ｇに保った。この温度で１時間保持
した後に常温まで冷却し、反応生成物を反応容器からガ
ラス容器に取り出した。取り出し直後は懸濁状態であっ
たが、時間の経過とともに相分離が進行し、約５分後に
は油状物質と水相の二つの相に分離した。両相をそれぞ
れわけ取り、油状物質４．５ｇを回収した。供試試料
（有機物基準）に対する油状物質の収率は約２４重量％
で、その油状物質の発熱量は８２００ｋｃａｌ／ｋｇで
あった。Example 4 To 100 g of garbage B was added 1 g of sodium carbonate as a catalyst, and 150 kg / of nitrogen gas was added in a pressurized reaction vessel.
It was pressurized to cm 2 G and heated to 325 ° C. at a temperature rising rate of about 10 ° C./min. In this case, the reaction pressure was kept at 150 kg / cm 2 G by the pressure control valve. After holding at this temperature for 1 hour, it was cooled to room temperature, and the reaction product was taken out of the reaction container into a glass container. Although it was in a suspended state immediately after taking out, phase separation proceeded with the passage of time, and after about 5 minutes, it separated into two phases, an oily substance and an aqueous phase. Both phases were separated and 4.5 g of an oily substance was recovered. Yield of oily substance is about 24% by weight based on sample (organic matter basis)
The calorific value of the oily substance was 8200 kcal / kg.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明を実施する場合のフローシートの一例を
示す。FIG. 1 shows an example of a flow sheet for carrying out the present invention.
【符号の説明】 １ 破砕分別装置 ２ 濃縮装置 ３ 反応装置 ４ 冷却装置 ５ 分離装置[Explanation of reference numerals] 1 crushing / separating device 2 concentrating device 3 reaction device 4 cooling device 5 separating device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小木 知子 茨城県つくば市小野川16番３ 工業技術院 公害資源研究所内 (72)発明者 土手 裕 茨城県つくば市小野川16番３ 工業技術院 公害資源研究所内 (72)発明者 美濃輪 智朗 茨城県つくば市小野川16番３ 工業技術院 公害資源研究所内 (72)発明者 村上 雅教 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内 (72)発明者 大谷 繁 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内 (72)発明者 昔農 英夫 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomoko Ogi 16-3 Onogawa, Tsukuba-shi, Ibaraki Institute of Industrial Technology, Institute of Pollution Resources (72) Inventor Hiroshi Dote 16-3 Onogawa, Tsukuba-shi, Ibaraki Institute of Pollution Research In-house (72) Inoue Tomoaki Minowa 16-3 Onogawa, Tsukuba-shi, Ibaraki Institute of Industrial Science, Institute for Pollution Resources (72) Inventor Masanori Murakami 11-1 Haneda-Asahicho, Ota-ku, Tokyo Ebara Corporation (72) Inventor Shigeru Otani 11-1 Haneda-Asahi-cho, Ota-ku, Tokyo Inside the EBARA CORPORATION (72) Inventor Hideo Nori 11-11 Haneda-Asahi-cho, Ota-ku, Tokyo Inside the EBARA CORPORATION
Claims (2)
質の存在下、水性媒体の存在下で高温高圧に保持するこ
とによって油状物質に液化させることを特徴とする生ゴ
ミの油化処理方法。1. A method for oil treatment of raw garbage, which comprises liquefying the raw garbage into an oily substance by keeping it at high temperature and high pressure in the presence of an alkaline substance, if necessary, and in the presence of an aqueous medium. ..
差を利用する分離手段により処理して油状物質を分離す
る請求項１の方法。2. The method according to claim 1, wherein the garbage liquefaction containing the oily substance is treated by a separating means utilizing a density difference to separate the oily substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3237302A JPH0551586A (en) | 1991-08-23 | 1991-08-23 | Method for converting garbage into oily matter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3237302A JPH0551586A (en) | 1991-08-23 | 1991-08-23 | Method for converting garbage into oily matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0551586A true JPH0551586A (en) | 1993-03-02 |
Family
ID=17013353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3237302A Pending JPH0551586A (en) | 1991-08-23 | 1991-08-23 | Method for converting garbage into oily matter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0551586A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4836952A (en) * | 1986-04-16 | 1989-06-06 | Nippon Kayaku Kabushiki Kaisha | Deoxygenating composition |
| JP2003520121A (en) * | 2000-01-24 | 2003-07-02 | ウェイスト リダクション バイ ウェイスト リダクション インコーポレイテッド | Apparatus and method for treating infectious waste |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105079A (en) * | 1982-12-06 | 1984-06-18 | Kurushima Group Kyodo Gijutsu Kenkyusho:Kk | Treatment of organic material by utilizing hot alkaline water |
| JPS60262888A (en) * | 1984-06-08 | 1985-12-26 | Agency Of Ind Science & Technol | Liquefaction of wooden biomass |
| JPS6173793A (en) * | 1984-09-20 | 1986-04-15 | Agency Of Ind Science & Technol | High-efficiency liquefaction of cellulosic biomass |
| JPS62109891A (en) * | 1985-11-08 | 1987-05-21 | Agency Of Ind Science & Technol | Treatment of alcohol fermentation residue |
| JPH02102798A (en) * | 1988-10-13 | 1990-04-16 | Agency Of Ind Science & Technol | Treatment of sludge of industrial waste water |
-
1991
- 1991-08-23 JP JP3237302A patent/JPH0551586A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105079A (en) * | 1982-12-06 | 1984-06-18 | Kurushima Group Kyodo Gijutsu Kenkyusho:Kk | Treatment of organic material by utilizing hot alkaline water |
| JPS60262888A (en) * | 1984-06-08 | 1985-12-26 | Agency Of Ind Science & Technol | Liquefaction of wooden biomass |
| JPS6173793A (en) * | 1984-09-20 | 1986-04-15 | Agency Of Ind Science & Technol | High-efficiency liquefaction of cellulosic biomass |
| JPS62109891A (en) * | 1985-11-08 | 1987-05-21 | Agency Of Ind Science & Technol | Treatment of alcohol fermentation residue |
| JPH02102798A (en) * | 1988-10-13 | 1990-04-16 | Agency Of Ind Science & Technol | Treatment of sludge of industrial waste water |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4836952A (en) * | 1986-04-16 | 1989-06-06 | Nippon Kayaku Kabushiki Kaisha | Deoxygenating composition |
| JP2003520121A (en) * | 2000-01-24 | 2003-07-02 | ウェイスト リダクション バイ ウェイスト リダクション インコーポレイテッド | Apparatus and method for treating infectious waste |
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