JP2008046137A - 二酸化炭素中の不純物を分析する方法 - Google Patents
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 560
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 272
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 272
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N1/40—Concentrating samples
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/40—Selective adsorption, e.g. chromatography characterised by the separation mechanism using supercritical fluid as mobile phase or eluent
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Abstract
【解決手段】仕掛かり品に導かれる二酸化炭素流中の汚染物質を監視するための方法であって、二酸化炭素流の少なくとも一部を試料採取して、その二酸化炭素試料の状態を変えて、ガス状の二酸化炭素と沈殿した汚染物質のエーロゾルを形成し、一部の粒子の数を少なくとも1つの粒子計数器により検出する。その値を基準値と比較し、後から導かれる二酸化炭素から沈殿し、仕掛かり品に析出する溶解した粒子の数が許容可能な少量であることを判定し、それによって二酸化炭素流の汚染物質を監視する。
【選択図】図1
Description
図4は、エーロゾル生成の圧力依存性を示す。使用した試料採取システムは、CGS−100粒子計数器を粒子分析器30として使用する図1に示されたものである。任意使用のヒーター20は採用しなかった。
4本を一緒に巻きつけた二酸化炭素ボンベから、液体試料を取り出した。ボンベ中の二酸化炭素の圧力は、室温でほぼ800psigであった。試料採取の方式は、図1に示したものを使用した。任意使用のヒーター20を使用して二酸化炭素試料18の温度を変え、減圧装置22により、得られたエーロゾル24をほぼ大気圧まで下げた。粒子分析器30は、Lasair101であった。
以上本発明をその好ましい実施形態に関して示し且つ述べたが、添付の特許請求の範囲によって包含される本発明の範囲から逸脱することなく本発明に様々な形態及び細部の変更を加えることができることを当業者なら理解するであろう。
Claims (3)
- 仕掛かり品に導かれる二酸化炭素流中の汚染物質を監視するための方法であって、
a)基準値を確認するステップであって、前記基準値は、溶解した前記汚染物質が、仕掛かり品に許容可能な少量で沈殿及び析出するであろうことを示し、前記基準値の確認は、
i)許容可能な二酸化炭素流の少なくとも一部を試料採取して、許容可能な二酸化炭素試料を形成するステップと、
ii)前記許容可能な二酸化炭素試料の状態を変えて、ガス状二酸化炭素と沈殿した汚染物質のエーロゾルを形成し、それによって汚染物質の少なくとも一部が浮遊した小滴の形態にするステップと、
iii)前記許容可能な二酸化炭素試料の少なくとも一部の粒子の数を少なくとも1つの粒子計数器により検出するステップと
を含む較正過程において溶解汚染物質の少なくとも一部の粒子の数を検出することによってなされるステップとを含み、
b)続いて二酸化炭素流を仕掛かり品に導くステップと、
c)前記二酸化炭素流を試料採取して少なくとも1つの測定値を確認するステップであって、前記測定値は、汚染物質が二酸化炭素流から沈殿し、許容可能な少量で前記仕掛かり品に析出するかどうかを示し、前記測定値の確認は、
i)前記二酸化炭素流の少なくとも一部を試料採取して二酸化炭素試料を形成するステップと、
ii)前記二酸化炭素試料の状態を変えてガス状二酸化炭素と沈殿した汚染物質のエーロゾルを形成するステップと、
iii)前記二酸化炭素試料の一部の中の粒子の数を、少なくとも1つの粒子計数器により検出するステップと
を含む監視過程で、基準値を決定するために用いたものと基本的に等量の溶解汚染物質の粒子の数を検出することによって示され、それによって前記測定値を確認するステップとを含み、
d)測定した値を前記基準値と比較し、後から導かれる二酸化炭素から沈殿し、仕掛かり品に析出する溶解した粒子の数が許容可能な少量であることを判定し、それによって二酸化炭素流の汚染物質を監視するステップとを含む方法。 - 前記基準値が、前記二酸化炭素流が、1×10−6重量%未満の溶解した汚染物質を含有することを示す請求項1に記載の前記方法。
- 前記基準値が、前記二酸化炭素流が、1×10−7重量%未満の溶解した汚染物質を含有することを示す請求項2に記載の前記方法。
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US35068802P | 2002-01-22 | 2002-01-22 |
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JP2007241713A Expired - Fee Related JP4221441B2 (ja) | 2002-01-22 | 2007-09-19 | 二酸化炭素中の不純物を分析する方法 |
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US (1) | US7064834B2 (ja) |
EP (1) | EP1485708A4 (ja) |
JP (2) | JP4128958B2 (ja) |
KR (1) | KR101110391B1 (ja) |
CN (1) | CN1643376A (ja) |
TW (1) | TWI312067B (ja) |
WO (1) | WO2003062816A1 (ja) |
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JP4997568B2 (ja) * | 2007-08-24 | 2012-08-08 | オルガノ株式会社 | 高圧二酸化炭素の微粒子測定システムおよび微粒子測定方法 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2012011420A1 (ja) * | 2010-07-21 | 2012-01-26 | オルガノ株式会社 | 流体中の微粒子検出装置及び検出方法 |
JP2012026792A (ja) * | 2010-07-21 | 2012-02-09 | Japan Organo Co Ltd | 流体中の微粒子検出装置及び検出方法 |
CN102869977A (zh) * | 2010-07-21 | 2013-01-09 | 奥加诺株式会社 | 流体中的微粒子检测装置及检测方法 |
KR101502210B1 (ko) * | 2010-07-21 | 2015-03-12 | 오르가노 가부시키가이샤 | 유체 중의 미립자 검출 장치 및 검출 방법 |
KR101372907B1 (ko) | 2012-10-11 | 2014-03-10 | 주식회사 포스코 | 두께 측정장치 |
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WO2003062816A1 (en) | 2003-07-31 |
US7064834B2 (en) | 2006-06-20 |
KR20040086283A (ko) | 2004-10-08 |
CN1643376A (zh) | 2005-07-20 |
TWI312067B (en) | 2009-07-11 |
JP4221441B2 (ja) | 2009-02-12 |
JP4128958B2 (ja) | 2008-07-30 |
EP1485708A1 (en) | 2004-12-15 |
KR101110391B1 (ko) | 2012-02-15 |
EP1485708A4 (en) | 2006-05-03 |
JP2005516189A (ja) | 2005-06-02 |
US20030197852A1 (en) | 2003-10-23 |
TW200306412A (en) | 2003-11-16 |
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