Effect of Sb2O3 in brominated heating impact polystyrene (HIPS-Br) on thermal degradation and debromination by iron oxide carbon composite catalyst (Fe-C)

被引：44

作者：

Bhaskar, T

Matsui, T

Uddin, MA

Kaneko, J

Muto, A

Sakata, Y

机构：

[1] Okayama Univ, Fac Engn, Dept Appl Chem, Okayama 7008530, Japan

[2] Toda Kogyo Co Ltd, Hiroshima 7390652, Japan

[3] Univ Newcastle, Sch Engn, Proc Safety & Environm Protect Grp, Callaghan, NSW 2308, Australia

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2003年 / 43卷 / 03期

关键词：

HIPS-Br; pyrolysis; Sb2O3-synergist; iron oxide catalyst; fuel oil;

D O I：

10.1016/S0926-3373(02)00306-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The iron oxide carbon composite catalyst (Fe-C) was prepared and used for catalytic debromination process during pyrolysis of heating impact polystyrene (HIPS-Br) with various brominated flame retardants at 430 degreesC into fuel oil. The effect of antimony oxide (Sb2O3: synergist) in HIPS-Br containing decabromo diphenyl oxide (DDO) and decabromo diphenyl ethane (DDE) as flame retardant was investigated. The thermal degradation of HIPS-Br produced various brominated hydrocarbons and also hydrobromic acid (HBr) in addition to various hydrocarbons. The synergist (Sb2O3) reacted with the hydrogen bromide evolved during the pyrolysis process and formed the SbBr3 in the liquid products. The presence of bromine content (organic and inorganic) in liquid products is not desirable to use as a fuel oil. The use of iron oxide carbon composite catalyst (Fe-C) during pyrolysis debrominated (ca. 99%) the bromine compounds from liquid products. The presence of Sb2O3 (5 wt.%) decreased both the hydrogen bromide and brominated hydrocarbons by forming SbBr3 and produced high quantity of lower hydrocarbons (C-7-C-11). Thermogravimetric analysis (TGA) revealed that the presence of Sb2O3 in HIPS-Br decreased the degradation temperature. Powder X-ray diffraction results showed the presence of Fe3O4 phase in fresh Fe-C. Scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX) shows the presence of Sb and Br in used Fe-C catalyst in the degradation process. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：229 / 241

页数：13

共 16 条

[1]

BETTS KS, 2001, ENVIRON SCI TECHNOL, pA274

[2]

BHASKAR T, 2001, P 3 INT C ENV CAT, P177

[3]

INNES JA, 2001, PLASTICS ADDITIVES C, P22

[4]

Kaminsky W, 2000, ANGEW CHEM INT EDIT, V39, P331, DOI 10.1002/(SICI)1521-3773(20000117)39:2<331::AID-ANIE331>3.3.CO

[5]

2-8

[6]

Kaufer H, 1997, KUNSTST-PLAST EUR, V87, P190

[7] Catalytic dehydrochlorination of chloro-organic compounds from PVC containing waste plastics derived fuel oil over FeCl2/SiO2 catalyst [J].

Lingaiah, N ;

Uddin, MA ;

Morikawa, K ;

Muto, A ;

Murata, K ;

Sakata, Y .

GREEN CHEMISTRY, 2001, 3 (02) :74-75

[8] Catalytic dechlorination of chloroorganic compounds from PVC-containing mixed plastic-derived oil [J].

Lingaiah, N ;

Uddin, MA ;

Muto, A ;

Sakata, Y ;

Imai, T ;

Murata, K .

APPLIED CATALYSIS A-GENERAL, 2001, 207 (1-2) :79-84

[9]

LINGAIAH N, 1999, CHEM LETT, V3, P245

[10] THERMAL-DEGRADATION OF POLYPROPYLENE [J].

MURATA, K ;

MAKINO, T .

NIPPON KAGAKU KAISHI, 1975, (01) :192-200

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