JP2001149767A5 - - Google Patents
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- JP2001149767A5 JP2001149767A5 JP1999339268A JP33926899A JP2001149767A5 JP 2001149767 A5 JP2001149767 A5 JP 2001149767A5 JP 1999339268 A JP1999339268 A JP 1999339268A JP 33926899 A JP33926899 A JP 33926899A JP 2001149767 A5 JP2001149767 A5 JP 2001149767A5
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- JP
- Japan
- Prior art keywords
- organic
- pressure
- organic compound
- solvent
- extractor
- 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.)
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- 150000002894 organic compounds Chemical class 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000012530 fluid Substances 0.000 description 8
- 239000002904 solvent Substances 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- -1 methanol and ethanol Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Description
【０００２】
【従来の技術】
環境問題に対する認識の高まりと共に、有機物の酸化、分解能力の高い超臨界水反応を利用して、環境汚染物質を分解、無害化する試みが注目されている。すなわち、超臨界水の高い反応性を利用した超臨界水反応により、従来技術では分解することが難しかった有害な難分解性の有機物、例えば、ＰＣＢ（ポリ塩素化ビフェニル）、ダイオキシン、有機塩素系溶剤等を分解して、二酸化炭素、水、無機塩などの無害な生成物に転化する試みである。
その試みの一つとして、最近では、このような有害な有機化合物を含む、様々な下水汚泥、都市ゴミ、産業廃棄物、汚染土壌等の固体状の廃棄物の処理にも、超臨界水反応を利用した超臨界水処理が試みられている。
[0002]
[Prior art]
With increasing awareness of environmental issues, attempts to decompose and detoxify environmental pollutants by utilizing supercritical water reactions, which have a high ability to oxidize and decompose organic substances, have attracted attention. That is, harmful hardly decomposable organic substances, such as PCB (polychlorinated biphenyl), dioxin, and organic chlorinated compounds, which were difficult to decompose in the prior art by supercritical water reaction utilizing high reactivity of supercritical water. This is an attempt to decompose a solvent or the like and convert it into harmless products such as carbon dioxide, water, and inorganic salts.
As one of the attempts, recently, supercritical water reaction has been applied to the treatment of various solid waste such as sewage sludge, municipal waste, industrial waste, and contaminated soil containing such harmful organic compounds. supercritical water treatment using have been attempted.
有機化合物の抽出装置１２は、超臨界流体を生成する超臨界流体生成装置として設けられ、ＣＯ２ガスを圧縮してＣＯ２超臨界流体を生成する圧縮機１８と、有機性固形物を収容し、ＣＯ２超臨界流体を導入して、有機性固形物から有機化合物を抽出する抽出器２０と、抽出器２０から出た超臨界抽出液を減圧する減圧機構２２とを備えている。なお炭酸ガスの原料として液体炭酸ガスを用いる場合は、圧縮機１８の代わりに圧入ポンプを用い、炭酸圧入ポンプの後段に加熱器を備けることとなる。
抽出器２０は、圧力容器として形成され、有機性固形物を投入し、炭酸ガスの臨界温度および臨界圧力以上の条件、例えば、４００×９．８×１０４Ｐａ、４０℃の条件で、ＣＯ２超臨界流体によって有機性固形物から有機化合物をバッチ式で抽出するバッチ式抽出器である。
なお、抽出器２０に有機溶媒を注入する注入管（図示せず）を設け、アルコール、ベンゼン、トルエン等の有機溶媒を注入して、有機化合物の抽出効率を高めるようにしても良い。
減圧機構２２は、抽出器２０の圧力を計測する圧力計２４と、減圧弁として機能する圧力調節弁２６と、圧力計２４の計測値に基づいて抽出器２０の圧力を設定圧力に維持するように圧力調節弁２６を調節する圧力制御装置２８とを備えている。
The organic compound extraction device 12 is provided as a supercritical fluid generation device that generates a supercritical fluid, and houses a compressor 18 that compresses CO 2 gas to generate a CO 2 supercritical fluid, and an organic solid. , by introducing CO 2 supercritical fluid comprises from organic solids and extractor 20 for extracting organic compounds, and a pressure reducing mechanism 22 for reducing the supercritical extract leaving the extractor 20. In the case of using the liquid carbon dioxide as a raw material for carbon dioxide, with a pressure pump instead of the compressor 18, so that the kick Bei the heater downstream of the carbonate pressure inlet pump.
Extractor 20 is formed as a pressure vessel, the organic solids were charged, the critical temperature and critical pressure or more conditions of carbon dioxide, for example, under the condition of 400 × 9.8 × 10 4 Pa, 40 ℃, the CO 2 supercritical fluid is a batch-type extractor for extracting an organic compound in a batch from the organic solids.
Note that an injection pipe (not shown) for injecting an organic solvent may be provided in the extractor 20 and an organic solvent such as alcohol, benzene, or toluene may be injected to increase the extraction efficiency of the organic compound.
The pressure reducing mechanism 22 is configured to maintain the pressure of the extractor 20 at a set pressure based on the measured value of the pressure gauge 24, a pressure control valve 26 that functions as a pressure reducing valve, and a pressure gauge 24 that measures the pressure of the extractor 20. And a pressure control device 28 for adjusting the pressure control valve 26.
有機化合物を抽出したＣＯ２超臨界流体からなる有機化合物抽出流体は、減圧機構２２によって減圧され、ＣＯ２ガスと、主として抽出した有機化合物からなる流体となって、溶解槽３０に流入する。ＣＯ２ガスは、気液分離して溶解槽３０から流出してＣＯ２ ガス管３６を通って圧縮機１８に導入される。一方、有機化合物は溶剤に溶解して有機化合物溶液となる。
溶剤には、例えば、メタノール、エタノール等のアルコール、ベンゼン、トルエン等の有機溶剤が使用される。有機化合物が水溶性有機化合物であるときには、溶剤として水を使用することもできる。処理対象となる有機化合物の種類あるいは溶剤の種類によっては、有機化合物が溶剤に完全に溶解することなく、溶剤中に微粒子状として分散されることもある。
The organic compound extraction fluid composed of the CO 2 supercritical fluid from which the organic compound has been extracted is decompressed by the decompression mechanism 22, turns into CO 2 gas and a fluid mainly composed of the extracted organic compound, and flows into the dissolution tank 30. The CO 2 gas is gas-liquid separated, flows out of the dissolving tank 30, and is introduced into the compressor 18 through the CO 2 gas pipe 36. On the other hand, the organic compound is dissolved in a solvent to form an organic compound solution.
As the solvent, for example, alcohols such as methanol and ethanol, and organic solvents such as benzene and toluene are used. When the organic compound is a water-soluble organic compound, water can be used as a solvent. Depending on the type of the organic compound to be treated or the type of the solvent, the organic compound may not be completely dissolved in the solvent but may be dispersed as fine particles in the solvent.
処理装置本体１６の構成は、固液分離器６０が必要でないこと以外は、基本的には、前述した従来の超臨界水処理装置４０と同じである。尤も、反応器は、チューブラー反応器に限らず、縦型圧力容器の反応器でも、或いは反応器下部に亜臨界水域を有する２ゾーン型反応器でも良い。 Configuration of the processing apparatus main body 16 is not required a solid-liquid separator 60 This and other than is basically the same as the conventional supercritical water treatment apparatus 40 described above. However, the reactor is not limited to a tubular reactor, and may be a vertical pressure vessel reactor or a two-zone reactor having a subcritical water area below the reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33926899A JP2001149767A (en) | 1999-11-30 | 1999-11-30 | Supercritical water treating device and super critical water treating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33926899A JP2001149767A (en) | 1999-11-30 | 1999-11-30 | Supercritical water treating device and super critical water treating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001149767A JP2001149767A (en) | 2001-06-05 |
| JP2001149767A5 true JP2001149767A5 (en) | 2006-09-14 |
Family
ID=18325852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33926899A Pending JP2001149767A (en) | 1999-11-30 | 1999-11-30 | Supercritical water treating device and super critical water treating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001149767A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007203192A (en) * | 2006-02-02 | 2007-08-16 | Mitsubishi Materials Corp | Method and system for circularly using carbon dioxide |
| JP6189602B2 (en) * | 2013-02-15 | 2017-08-30 | 国立大学法人佐賀大学 | Continuous reaction apparatus equipped with fluid pressure control mechanism, and β-glucan production method using continuous reaction apparatus |
| CN103979757B (en) * | 2014-05-27 | 2015-04-08 | 陕西延长石油（集团）有限责任公司 | Method for treating oily sludge through multistage extraction-splitting coupling of supercritical fluid |
| CN104258593A (en) * | 2014-09-11 | 2015-01-07 | 青岛利和萃取科技有限公司 | Supercritical fluid extraction equipment |
| CN108409075A (en) * | 2018-03-23 | 2018-08-17 | 李凡 | A kind of oil base drilling wastes supercritical fluid extraction separating treatment system and method |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10137774A (en) * | 1996-11-13 | 1998-05-26 | Japan Organo Co Ltd | Method of supplying liquid to supercritical water oxidizing reactor, device therefor and super critical water oxidizing device |
| JP3347610B2 (en) * | 1996-11-14 | 2002-11-20 | オルガノ株式会社 | Supercritical water oxidation method and apparatus |
| JP3345285B2 (en) * | 1996-12-02 | 2002-11-18 | オルガノ株式会社 | How to start and stop supercritical water oxidation equipment |
| JPH10328699A (en) * | 1997-05-30 | 1998-12-15 | Hitachi Plant Eng & Constr Co Ltd | Supercritical hydroxylation reactor |
| JP3583606B2 (en) * | 1998-02-17 | 2004-11-04 | オルガノ株式会社 | Supercritical water oxidation method and reactor |
| JPH11235563A (en) * | 1998-02-23 | 1999-08-31 | Nippon Telegr & Teleph Corp <Ntt> | Treatment of harmful material containing waste cca lumber |
| JPH11285677A (en) * | 1998-04-03 | 1999-10-19 | Hitachi Ltd | Treatment of organic waste and device therefor |
| JPH11290872A (en) * | 1998-04-09 | 1999-10-26 | Hitachi Ltd | Supercritical hydroxylation treatment system of organic matter and its operation |
| JP3887942B2 (en) * | 1998-04-14 | 2007-02-28 | 石川島播磨重工業株式会社 | Method for supercritical and hydrothermal reaction treatment of organic matter and treatment plant |
| JP3921801B2 (en) * | 1998-04-14 | 2007-05-30 | 石川島播磨重工業株式会社 | Method for supercritical and hydrothermal reaction treatment of organic matter and treatment plant |
| JP3887941B2 (en) * | 1998-04-14 | 2007-02-28 | 石川島播磨重工業株式会社 | Method for supercritical and hydrothermal reaction treatment of organic matter and treatment plant |
| JPH11290820A (en) * | 1998-04-15 | 1999-10-26 | Ishikawajima Harima Heavy Ind Co Ltd | Method for decomposing dioxin and its decomposition plant |
| JP3783398B2 (en) * | 1998-04-15 | 2006-06-07 | 石川島播磨重工業株式会社 | Method for supercritical and hydrothermal reaction treatment of organic matter and treatment plant |
| JP3812135B2 (en) * | 1998-04-15 | 2006-08-23 | 石川島播磨重工業株式会社 | Method for supercritical and hydrothermal reaction treatment of organic matter and treatment plant |
-
1999
- 1999-11-30 JP JP33926899A patent/JP2001149767A/en active Pending
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