Study on Thermal Decompositon Properties of Hexafluoropropane Clean Gaseous Fire-Extinguishing Agent

被引：3

作者：

Tan Ling-hua ^{[2
,3
]}

Li Qin-hua ^{[1
]}

Gao Fei ^{[1
]}

Pan Ren-ming ^{[1
]}

Li Feng-sheng ^{[2
]}

Wang Jun-de ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Peoples R China

[2] Nanjing Univ Sci & Technol, Natl Special Superfine Powder Engn Res Ctr, Nanjing 210094, Peoples R China

[3] Nanjing Inst Technol, Dept Mat Engn, Nanjing 211167, Peoples R China

来源：

SPECTROSCOPY AND SPECTRAL ANALYSIS | 2010年 / 30卷 / 07期

关键词：

Gaseous fire-extinguishing agent; Hexafluoropropane; Thermal decompositon; GC; GC-MS; FTIR; 2-H HEPTAFLUOROPROPANE; INFRARED-SPECTRUM;

D O I：

10.3964/j.issn.1000-0593(2010)07-1926-04

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The thermal decomposition properties of hexafluoropropane clean gaseous fire-extinguishing agent were studied in tubular reactor from 500 to 750 degrees C and the decomposed gas was characterized by gas chromatography(GC), Fourier transform infrared spectroscopy (FTIR) and gas chromatography-mass spectrometry (GC-MS). Hydrogen fluoride was detected after the decomposed gas was analyzed by pH testing, while pentafluoropropylene was found by GC-MS. The results showed that hydrogen fluoride eliminated from hexafluoropropane was the main reaction, while pentafluoropropylene was the primary product during hexafluoropropane decomposition under high temperature. GC and FTIR results indicated that the reaction temperatures had significant effects on the thermal decomposition of hexafluoropropane. Haxafluropropane was steady at 500 degrees C, whereas started to decompose weakly at 600 degrees C. The degree of the thermal decomposition of hexafluoropropane was enhanced with the temperature increase. And hexafluoropropane underwent intense decompositon at 750 degrees C. FTIR can be used as a new method to study extinguishing mechanism of fluorine-containing fire extinguishing agent online.

引用

页码：1926 / 1929

页数：4

共 15 条

[1] Clean Agent Selection Approached by Fuzzy TOPSIS Decision-Making Method
Aiello, Giuseppe
Enea, Mario
Galante, Giacomo
La Scalia, Giada
[J]. FIRE TECHNOLOGY, 2009, 45 (04) : 405 - 418
[2] High resolution FTIR spectroscopic study of the ν4 band of CH3CHF2 enclosed in a flow of cold N2 gas
Appadoo, DRT
Robertson, EG
McNaughton, D
[J]. JOURNAL OF MOLECULAR SPECTROSCOPY, 2003, 217 (01) : 96 - 104
[3] ANALYSIS OF THE KINETICS OF THE THERMAL-DECOMPOSITION OF PENTAFLUOROETHANE
AVIYENTE, V
INEL, Y
[J]. CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1990, 68 (08): : 1332 - 1337
[4] Du JH, 2008, SPECTROSC SPECT ANAL, V28, P559
[5] GANN RG, 2008, FIRE TECHNOL, V44, P1186
[6] Theoretical investigation of the hydrogen abstraction from CF3CH2CF3 by OH radicals, F, and Cl atoms: A dual-level direct dynamics study
Gao, Hong
Wang, Ying
Wan, Su-Qin
Liu, Jing-Yao
Sun, Chia-Chung
[J]. JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, 2009, 913 (1-3): : 107 - 116
[7] Shock-tube study of the pyrolysis of the halon replacement molecule CF3CHFCF3
Hynes, RG
Mackie, JC
Masri, AR
[J]. JOURNAL OF PHYSICAL CHEMISTRY A, 1999, 103 (01) : 54 - 61
[8] Review on additives for new clean fire suppressants
Jiang, Z.
Chow, W. K.
Li, S. F.
[J]. ENVIRONMENTAL ENGINEERING SCIENCE, 2007, 24 (05) : 663 - 674
[9] The high-resolution FTIR far-infrared spectrum of formamide
McNaughton, D
Evans, CJ
Lane, S
Nielsen, CJ
[J]. JOURNAL OF MOLECULAR SPECTROSCOPY, 1999, 193 (01) : 104 - 117
[10] Theoretical study of the thermal decomposition pathways of 2-H heptafluoropropane
Peterson, SD
Francisco, JS
[J]. JOURNAL OF PHYSICAL CHEMISTRY A, 2002, 106 (13) : 3106 - 3113

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