Products obtained in the fuel-rich combustion of PTFE at high temperature

被引：62

作者：

Garcia, Angela N. ^{[1
]}

Viciano, Noemi ^{[1
]}

Font, Rafael ^{[1
]}

机构：

[1] Univ Alicante, Fac Ciencias, Dept Ingn Quim, E-03080 Alicante, Spain

来源：

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 2007年 / 80卷 / 01期

关键词：

PTFE; tetrafluoroethylene; combustion; pyrolysis; perfluorocarbons; semivolatiles;

D O I：

10.1016/j.jaap.2007.01.004

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Thermal degradation of PTFE has been carried out in a horizontal tubular reactor. The influence of the temperature and the reaction atmosphere on the degradation products generated has been studied. Different runs (pyrolysis and fuel rich atmosphere) in the range 750-1050 degrees C were performed. In pyrolysis runs, only C2F4 and C3F6 as perfluorocarbon compounds were found. Under oxidative conditions, C2F6, C3F6 and CF4 were detected, varying their percentages as a function of temperature and oxygen proportion in the atmosphere. A low percentage of semivolatiles were also analyzed in all the cases studied, although only few fluorinated compounds were identified in this group. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：85 / 91

页数：7

共 17 条

[1] THERMAL-DEGRADATION OF COMMERCIAL FLUOROPOLYMERS IN AIR [J].

BAKER, BB ;

KASPRZAK, DJ .

POLYMER DEGRADATION AND STABILITY, 1993, 42 (02) :181-188

[2] Polytetrafluoroethylene decomposition in air and nitrogen [J].

Conesa, JA ;

Font, R .

POLYMER ENGINEERING AND SCIENCE, 2001, 41 (12) :2137-2147

[3] Hydrolytic decomposition of CF4 over alumina-based binary metal oxide catalysts:: high catalytic activity of gallia-alumina catalyst [J].

El-Bahy, ZM ;

Ohnishi, R ;

Ichikawa, M .

CATALYSIS TODAY, 2004, 90 (3-4) :283-290

[4] The use of 19F NMR and mass spectrometry for the elucidation of novel fluorinated acids and atmospheric fluoroacid precursors evolved in the thermolysis of fluoropolymers [J].

Ellis, DA ;

Martin, JW ;

Muir, DCG ;

Mabury, SA .

ANALYST, 2003, 128 (06) :756-764

[5] Thermolysis of fluoropolymers as a potential source of halogenated organic acids in the environment [J].

Ellis, DA ;

Mabury, SA ;

Martin, JW ;

Muir, DCG .

NATURE, 2001, 412 (6844) :321-324

[6]

*EPA, 1986, TEST METH EV SOL WAS

[7] Toxic byproducts from the combustion of varnish wastes based on polyurethane in a laboratory furnace [J].

Esperanza, MM ;

Font, R ;

García, AN .

JOURNAL OF HAZARDOUS MATERIALS, 2000, 77 (1-3) :107-121

[8]

Gerhartz W., 1988, ULLMANNS ENCY IND CH

[9] THERMAL-DEGRADATION OF POLYTETRAFLUOROETHYLENE IN FLOWING HELIUM ATMOSPHERE .2. PRODUCT DISTRIBUTION AND REACTION-MECHANISM [J].

JUN, HS ;

KIM, KN ;

PARK, KY ;

WOO, SI .

KOREAN JOURNAL OF CHEMICAL ENGINEERING, 1995, 12 (02) :183-187

[10] PYROLYSIS OF POLYTETRAFLUOROETHYLENE [J].

LEWIS, EE ;

NAYLOR, MA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1947, 69 (08) :1968-1970

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