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WO1997030335A3 - Verfahren zur in-situ-charakterisierung von primärteilchen und teilchenaggregaten - Google Patents

Verfahren zur in-situ-charakterisierung von primärteilchen und teilchenaggregaten Download PDF

Info

Publication number
WO1997030335A3
WO1997030335A3 PCT/EP1997/000638 EP9700638W WO9730335A3 WO 1997030335 A3 WO1997030335 A3 WO 1997030335A3 EP 9700638 W EP9700638 W EP 9700638W WO 9730335 A3 WO9730335 A3 WO 9730335A3
Authority
WO
WIPO (PCT)
Prior art keywords
size
particles
primary particles
particle aggregates
determination
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.)
Ceased
Application number
PCT/EP1997/000638
Other languages
English (en)
French (fr)
Other versions
WO1997030335A2 (de
Inventor
Alfred Leipertz
Stefan Will
Stephan Schraml
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ESYTEC Energie- und Systemtechnik GmbH
Original Assignee
ESYTEC Energie- und Systemtechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ESYTEC Energie- und Systemtechnik GmbH filed Critical ESYTEC Energie- und Systemtechnik GmbH
Publication of WO1997030335A2 publication Critical patent/WO1997030335A2/de
Publication of WO1997030335A3 publication Critical patent/WO1997030335A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • 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
    • G01N15/02—Investigating particle size or size distribution

Landscapes

  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Dispersion Chemistry (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

Verfahren zur In-situ-Bestimmung von Primärteilchengrößen. Die Größenbestimmung kleiner, insbesondere nanoskaliger Teilchen ist nach heutigem Stand der Technik in einem Prozeß nur dergestalt möglich, daß ein Maß für die Größe eines Aggregates, also eines aus mehreren Primärteilchen bestehenden Gebildes, ermittelt wird, und liefert nur für isoliert vorliegende Primärteilchen ein richtiges Maß. Mit dem neuen Verfahren ist es möglich, in beiden Fällen Primärteilchengrößen und weitere, daraus ableitbare Parameter zu bestimmen. Zur Größenmessung werden die Teilchen mit einem hochenergetischen Strahlungspuls bestrahlt. Die emittierte thermische Strahlung wird zu zwei Zeitpunkten detektiert, wobei aus dem gemessenen Signalverhältnis mit Hilfe eines errechneten Modells eindeutig die Partikelgröße bestimmt werden kann. Das Verfahren eignet sich zur Größenmessung kleiner Partikel bei verschiedenen Produktions- und anderen Umwandlungsprozessen, beispielsweise für Ruß und Metalloxide.
PCT/EP1997/000638 1996-02-17 1997-02-12 Verfahren zur in-situ-charakterisierung von primärteilchen und teilchenaggregaten Ceased WO1997030335A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996106005 DE19606005C1 (de) 1996-02-17 1996-02-17 Verfahren zur In-situ-Bestimmung von Primärteilchengrößen
DE19606005.2 1996-02-17

Publications (2)

Publication Number Publication Date
WO1997030335A2 WO1997030335A2 (de) 1997-08-21
WO1997030335A3 true WO1997030335A3 (de) 1997-09-25

Family

ID=7785739

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/000638 Ceased WO1997030335A2 (de) 1996-02-17 1997-02-12 Verfahren zur in-situ-charakterisierung von primärteilchen und teilchenaggregaten

Country Status (2)

Country Link
DE (1) DE19606005C1 (de)
WO (1) WO1997030335A2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19809792C2 (de) * 1998-03-09 2000-03-30 Fraunhofer Ges Forschung Vorrichtung zur Messung der Emission und/oder Absorption eines heißen Gases oder Plasmas
DE19904691C2 (de) * 1999-02-05 2003-05-28 Esytec En U Systemtechnik Gmbh Vorrichtung und Verfahren zur simultanen In-situ-Bestimmung der Teilchengröße und Massenkonzentration von fluidgetragenen Partikeln
DE10124235B4 (de) * 2001-05-18 2004-08-12 Esytec Energie- Und Systemtechnik Gmbh Verfahren und Vorrichtung zur umfassenden Charakterisierung und Kontrolle des Abgases und der Regelung von Motoren, speziell von Verbrennungsmotoren, und von Komponenten der Abgasnachbehandlung
US6809820B2 (en) 2002-04-18 2004-10-26 National Research Council Of Canada Small particle analysis by laser induced incandescence
EA007304B1 (ru) * 2002-07-19 2006-08-25 Коламбиан Кемикалз Компани Отбор проб технического углерода для измерения площади поверхности частиц с использованием индуцированного лазером накала и управление процессом в реакторе на его основе
ITRM20090617A1 (it) 2009-11-25 2011-05-26 Consiglio Nazionale Ricerche Metodo ed apparato per misure di radiazione luminosa isotropica ottenuta da tecniche di spettroscopia laser, in particolare per misure di particolato submicronico.
CN101949853B (zh) * 2010-08-16 2012-11-14 钢铁研究总院 材料的非平面表面原位统计分布分析方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605535A (en) * 1982-04-07 1986-08-12 Chevron Research Company Apparatus for measuring particle size

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605535A (en) * 1982-04-07 1986-08-12 Chevron Research Company Apparatus for measuring particle size

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
MEWES, B. AND SEITZMAN J. M.: "Soot volume fraction and particle size measurements with laser-induced incandescence", APPLIED OPTICS, vol. 36, 20 January 1997 (1997-01-20), pages 709 - 717, XP002036104 *
VANDER WAL R L ET AL: "LASER-INDUCED INCANDESCENCE: DEVELOPMENT AND CHARACTERIZATION TOWARDS A MEASUREMENT OF SOOT-VOLUME FRACTION", APPLIED PHYSICS B: LASERS AND OPTICS, vol. B59, no. 4, October 1994 (1994-10-01), pages 445 - 452, XP000471334 *
WILL, S. ET AL.: "Two-dimensional soot-particle sizing by time-resolved laser-induced incandescence.", OPTICS LETTERS, OPT. SOC. AMERICA, vol. 20, no. 22, 15 November 1995 (1995-11-15), USA, pages 2342 - 2344, XP000537167 *

Also Published As

Publication number Publication date
DE19606005C1 (de) 1997-04-03
WO1997030335A2 (de) 1997-08-21

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