JPH082910A - Method for producing activated carbon from organic industrial waste - Google Patents
Method for producing activated carbon from organic industrial wasteInfo
- Publication number
- JPH082910A JPH082910A JP6156466A JP15646694A JPH082910A JP H082910 A JPH082910 A JP H082910A JP 6156466 A JP6156466 A JP 6156466A JP 15646694 A JP15646694 A JP 15646694A JP H082910 A JPH082910 A JP H082910A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- industrial waste
- organic industrial
- producing activated
- water
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Processing Of Solid Wastes (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
(57)【要約】
【目的】 プロセスが単純で、かつ比較的高分子物質の
吸着除去性能も示す、有機性産業廃棄物を原材料とする
活性炭の製造方法を提供する。
【構成】 水分を含有する有機性産業廃棄物を、一段で
７００℃以上の還元雰囲気に１０分間以上置くことによ
り、炭化と賦活とを平行して進行せしめることを特徴と
する有機性産業廃棄物からの活性炭の製造方法としたも
のであり、前記有機性産業廃棄物の含水量は３０％以上
あるのがよい。(57) [Summary] [Objective] To provide a method for producing activated carbon using organic industrial waste as a raw material, which has a simple process and also has a relatively high adsorption performance for removing polymeric substances. [Composition] An organic industrial waste characterized by allowing carbonization and activation to proceed in parallel by placing a water-containing organic industrial waste in a reducing atmosphere at 700 ° C or higher for 10 minutes or more. The method for producing activated carbon from No. 3, the water content of the organic industrial waste is preferably 30% or more.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、有機性産業廃棄物のリ
サイクル方法に係わり、特にビール粕、コーヒー粕等に
代表される有機性産業廃棄物から活性炭を効率的に製造
する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recycling organic industrial waste, and more particularly to a method for efficiently producing activated carbon from organic industrial waste represented by beer lees and coffee lees.
【０００２】[0002]
【従来の技術】通常、活性炭は有機炭素含有物質を炭化
し、水蒸気、二酸化炭素、あるいは適当な薬剤の存在下
にて賦活されることによって得られる。しかし、上記の
ような含水有機性産業廃棄物を活性炭製造の原料とする
場合は、炭化工程の前に乾燥工程を有し、炭化温度は５
００℃程度、賦活温度は８００〜９００℃というのが公
知の方法であった。そして、乾燥、炭化、賦活という三
段階の工程を経るため収率が低下し、工程が複雑となっ
て、その製造経費がやし殻、石炭等を原料とする市販の
活性炭に比べて高くつくため実用化されることはなかっ
た。また、水分を３０％以上含有するような有機性産業
廃棄物を原材料とし、この公知の活性炭製造プロセスを
経て活性炭を製造すると、製品は比較的低分子の液中溶
解物質、あるいはガス状物質しか吸着できないような、
比表面積及び細孔径分布を示し、比較的高分子物質の吸
着除去には適さなかった。この場合の比表面積は７００
〜８００ｍ2 ／ｇであった。細孔径分布についてはメチ
レンブレー吸着性能にて表現すると１２０ｍｌ／ｇ以下
であった。2. Description of the Prior Art Activated carbon is usually obtained by carbonizing an organic carbon-containing substance and activating it in the presence of steam, carbon dioxide, or an appropriate chemical. However, when the water-containing organic industrial waste as described above is used as a raw material for the production of activated carbon, it has a drying step before the carbonization step and the carbonization temperature is 5
It was a known method that the activation temperature was about 00 ° C and the activation temperature was 800 to 900 ° C. Then, the yield is reduced due to the three steps of drying, carbonization and activation, the process is complicated, and the manufacturing cost thereof is higher than that of commercially available activated carbon made from coconut shell, coal, etc. Therefore, it was never put to practical use. In addition, when an organic industrial waste containing 30% or more of water is used as a raw material and activated carbon is manufactured through this known activated carbon manufacturing process, the product has only a relatively low-molecular dissolved substance or a gaseous substance. I can not adsorb,
It showed a specific surface area and pore size distribution and was relatively unsuitable for adsorptive removal of polymeric substances. The specific surface area in this case is 700
It was ~ 800 m 2 / g. The pore size distribution was 120 ml / g or less when expressed in terms of methylene bray adsorption performance.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、上記従来技
術の問題点を解消し、有機性産業廃棄物を原材料として
プロセスが単純であり、比較的高分子物質の吸着除去性
能もよい活性炭の製造方法を提供することを課題とす
る。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, uses an organic industrial waste as a raw material, has a simple process, and has a relatively high adsorption performance for high-molecular substances. It is an object to provide a manufacturing method.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するため
に、本発明では、水分を含有する有機性産業廃棄物を、
一段で７００℃以上の還元雰囲気に１０分間以上置くこ
とにより、炭化と賦活とを平行して進行せしめる有機性
産業廃棄物からの活性炭の製造方法としたものである。
前記製造方法において、有機性産業廃棄物の水分含有量
は、３０重量％以上が好ましい。有機性産業廃棄物を４
００〜５００℃以上の還元雰囲気に置けば炭化すること
は公知であるが、水分を３０％以上含有する有機性産業
廃棄物では炭化と同時に水蒸気が発生する。一方、先述
の水蒸気による賦活も、還元雰囲気において進行するも
のであり、水分を３０％以上含有する有機性産業廃棄物
の場合、炭化と平行して水蒸気賦活が期待されることか
ら本発明に到達した。In order to solve the above problems, the present invention provides an organic industrial waste containing water,
This is a method for producing activated carbon from organic industrial waste that allows carbonization and activation to proceed in parallel in a reducing atmosphere at 700 ° C. or higher for 10 minutes or more.
In the manufacturing method, the water content of the organic industrial waste is preferably 30% by weight or more. 4 organic industrial waste
It is known that carbonization occurs when it is placed in a reducing atmosphere at a temperature of 00 to 500 ° C. or higher, but in an organic industrial waste containing 30% or more of water, steam is generated at the same time as carbonization. On the other hand, the activation by steam described above also proceeds in a reducing atmosphere, and in the case of an organic industrial waste containing 30% or more of water, steam activation is expected in parallel with carbonization, and thus the present invention has been reached. did.
【０００５】すなわち、当該有機性産業廃棄物を、７０
０℃以上の還元雰囲気に１０分間以上置くことにより得
られる活性炭は、比表面積が大きい上、小さな細孔の占
める割合が高く、比較的高分子の物質も吸着することが
できるのである。還元雰囲気の温度を６００℃、６５０
℃とし、滞留時間を０．５〜１．５時間として、得られ
る活性炭の比表面積は、７００〜８００ｍ2 ／ｇ、メチ
レンブルー吸着性能１２０〜１４０ｍｌ／ｇであるのに
対して、本発明の還元雰囲気の温度を７００℃、８００
℃、９００℃とした場合は、滞留時間１０分以上におい
て、比表面積が９００ｍ2 ／ｇ以上で、メチレンブルー
吸着性能１４０ｍｌ／ｇ以上の活性炭を得ることができ
る。That is, the organic industrial waste is
The activated carbon obtained by placing it in a reducing atmosphere at 0 ° C. or higher for 10 minutes or more has a large specific surface area and a high proportion of small pores, and can also adsorb a relatively high molecular substance. The temperature of the reducing atmosphere is 600 ° C, 650
The specific surface area of the activated carbon obtained is 700 to 800 m 2 / g and the methylene blue adsorption performance is 120 to 140 ml / g, while the reduction time of the present invention is 50 ° C. and the residence time is 0.5 to 1.5 hours. Atmosphere temperature 700 ℃, 800
When the temperature is 900 ° C. or 900 ° C., activated carbon having a specific surface area of 900 m 2 / g or more and a methylene blue adsorption performance of 140 ml / g or more can be obtained at a residence time of 10 minutes or more.
【０００６】[0006]
【作用】本発明では、水分を含有する、特に３０％以上
含有する有機性産業廃棄物を７００℃以上の還元雰囲気
に１０分間以上置くことにより、比表面積が大きくし
て、小さな細孔の占める割合の高い活性炭を得ることが
でき、その適用範囲が広くなる上、乾燥工程や水蒸気、
二酸化炭素等による賦活工程が省略されるため、乾燥工
程及び賦活工程を経て製造する活性炭に比べて収率が高
い上、製造プロセスも単純である。In the present invention, by placing organic industrial waste containing water, particularly 30% or more, in a reducing atmosphere at 700 ° C. or more for 10 minutes or more, the specific surface area becomes large and small pores occupy. A high proportion of activated carbon can be obtained, its application range is widened, and drying process and steam,
Since the activation step using carbon dioxide or the like is omitted, the yield is higher than that of activated carbon produced through the drying step and the activation step, and the production process is simple.
【０００７】[0007]
【実施例】以下、本発明を実施例により具体的に説明す
るが、本発明はこれらの実施例に限定されるものではな
い。 実施例１ 含水率６５．５％のコーヒー粕を、内部が還元雰囲気で
７００℃に制御されている流動炉に１０分間封入した
後、流動炉から取り出したところ、粉末活性炭と粒状活
性炭との中間的な性状を示す物質が得られた。これの比
表面積を測定したところ、１０２３．３ｍ2 ／ｇ、図１
に示すような細孔径分布であり、メチレンブルー吸着性
能は１７６ｍｌ／ｇであった。図１は横軸が細孔径
（Å）で縦軸が細孔容積（ｃｍ3 ／ｇ）である。また、
この物質を用いて、分画分子量が数千から１万数千であ
る某産業廃水凝集沈殿処理水のＣＯＤ成分除去を調べた
ところ、２４３ｍｇ−ＣＯＤ／ｇのＣＯＤ平衡吸着容量
を示した。EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples. Example 1 Coffee ground having a water content of 65.5% was sealed in a fluidized furnace whose inside was controlled at 700 ° C. in a reducing atmosphere for 10 minutes, and then taken out of the fluidized furnace to find an intermediate between powdered activated carbon and granular activated carbon. A substance having the desired properties was obtained. The specific surface area of this was measured to be 1023.3 m 2 / g, as shown in FIG.
And the methylene blue adsorption performance was 176 ml / g. In FIG. 1, the horizontal axis represents the pore diameter (Å) and the vertical axis represents the pore volume (cm 3 / g). Also,
When this substance was used to examine the removal of COD components from a certain industrial wastewater coagulation-precipitated water having a molecular weight cutoff of several thousand to ten thousand, a COD equilibrium adsorption capacity of 243 mg-COD / g was shown.
【０００８】これと比較対照するために、市販の粒状活
性炭を同じ産業廃水凝集沈殿処理水のＣＯＤ成分除去に
用いたところ、２６２ｍｇ−ＣＯＤ／ｇのＣＯＤ平衡吸
着容量を示した。そして、この粒状活性炭の比表面積は
１３５２．４ｍ2 ／ｇであった。一方、同じコーヒー粕
を１１０℃で３時間乾燥処理した後、内部が還元雰囲気
にて５００℃に制御されている流動炉に１時間封入した
後、流動炉内の温度を９００℃に上昇せしめ、水蒸気を
吹き込んで１０分間賦活処理を施し、活性炭状物質を得
た。これの比表面積を測定したところ、７８６．３ｍ2
／ｇ、図２に示すような細孔径分布であり、メチレンブ
ルー吸着性能は９４ｍｌ／ｇであった。この活性炭状物
質を用いて、先述と同じ凝集沈殿処理水のＣＯＤ成分除
去を調べたところ、１００ｍｇ−ＣＯＤ／ｇのＣＯＤ平
衡吸着容量を示すに過ぎなかった。For comparison with this, a commercially available granular activated carbon was used to remove COD components of the same industrial wastewater coagulation-sedimentation-treated water, and showed a COD equilibrium adsorption capacity of 262 mg-COD / g. The specific surface area of this granular activated carbon was 1352.4 m 2 / g. On the other hand, after the same coffee grounds were dried at 110 ° C. for 3 hours and then charged in a fluidized furnace whose inside was controlled at 500 ° C. for 1 hour, the temperature inside the fluidized furnace was raised to 900 ° C. Steam was blown in for activation for 10 minutes to obtain an activated carbon-like substance. When the specific surface area of this was measured, it was 786.3 m 2
/ G, the pore size distribution was as shown in FIG. 2, and the methylene blue adsorption performance was 94 ml / g. When the COD component removal of the same coagulation-sedimentation-treated water as described above was investigated using this activated carbonaceous substance, it showed only a COD equilibrium adsorption capacity of 100 mg-COD / g.
【０００９】[0009]
【発明の効果】本発明においては、従来法では良好な活
性炭原料と言えないコーヒー粕から、市販されている粒
状活性炭と遜色のない活性炭を製造することができる。
また、製造プロセスが単純で、含水率が高い有機性廃棄
物自身に含まれている水分により、賦活に要する水蒸気
が発生するため製造コストが安価になる。INDUSTRIAL APPLICABILITY According to the present invention, it is possible to produce activated carbon that is comparable to commercially available granular activated carbon from coffee grounds, which cannot be said to be a good activated carbon raw material by the conventional method.
In addition, the manufacturing process is simple, and the water contained in the organic waste itself having a high water content generates water vapor required for activation, so that the manufacturing cost becomes low.
【図１】本発明により製造した活性炭の細孔径分布を示
すグラフ。FIG. 1 is a graph showing the pore size distribution of activated carbon produced according to the present invention.
【図２】従来法により製造した活性炭の細孔径分布を示
すグラフ。FIG. 2 is a graph showing the pore size distribution of activated carbon produced by a conventional method.
Claims (1)
段で７００℃以上の還元雰囲気に１０分間以上置くこと
により、炭化と賦活とを平行して進行せしめることを特
徴とする有機性産業廃棄物からの活性炭の製造方法。1. An organic industrial product characterized by allowing carbonization and activation to proceed in parallel by placing a single step of a water-containing organic industrial waste in a reducing atmosphere at 700 ° C. or more for 10 minutes or more. Method for producing activated carbon from waste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6156466A JPH082910A (en) | 1994-06-16 | 1994-06-16 | Method for producing activated carbon from organic industrial waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6156466A JPH082910A (en) | 1994-06-16 | 1994-06-16 | Method for producing activated carbon from organic industrial waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH082910A true JPH082910A (en) | 1996-01-09 |
Family
ID=15628369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6156466A Pending JPH082910A (en) | 1994-06-16 | 1994-06-16 | Method for producing activated carbon from organic industrial waste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH082910A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10191900A (en) * | 1997-01-13 | 1998-07-28 | Nobuhisa Kawano | Recycle powder of coffee extracted refuse, and use of the same as subordinate food material for processed food and active carbon raw material |
| JP2002193696A (en) * | 2000-12-25 | 2002-07-10 | Yoneda Sangyo Kk | Inorganic fertilizer |
| US6875317B1 (en) | 1999-03-03 | 2005-04-05 | Jiro Toyoda | Waste treating method |
-
1994
- 1994-06-16 JP JP6156466A patent/JPH082910A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10191900A (en) * | 1997-01-13 | 1998-07-28 | Nobuhisa Kawano | Recycle powder of coffee extracted refuse, and use of the same as subordinate food material for processed food and active carbon raw material |
| US6875317B1 (en) | 1999-03-03 | 2005-04-05 | Jiro Toyoda | Waste treating method |
| JP2002193696A (en) * | 2000-12-25 | 2002-07-10 | Yoneda Sangyo Kk | Inorganic fertilizer |
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