Feedstock recycling of polymers by pyrolysis in a fluidised bed

被引：257

作者：

Kaminsky, W ^{[1
]}

Predel, M ^{[1
]}

Sadiki, A ^{[1
]}

机构：

[1] Univ Hamburg, Inst Tech & Macromol Chem, D-20146 Hamburg, Germany

来源：

POLYMER DEGRADATION AND STABILITY | 2004年 / 85卷 / 03期

关键词：

pyrolysis; fluidised bed; polymer recycling; monomer recovery;

D O I：

10.1016/j.polymdegradstab.2003.05.002

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Feedstock recycling of polymers is an attractive option to recycle the increasing amount of plastic wastes and respond to restrictions for waste disposal in a lot of countries. Different processes are investigated such as degradation of plastics to monomers, pyrolysis into monomers and oil, gasification into syngas. Pyrolysis of mixed plastic wastes and elastomers is a cost-effective process to recover feedstocks for the petrochemical industry. The Hamburg process, using an indirectly heated fluidised bed, can be varied to produce mainly monomers, aliphatic hydrocarbons, or aromatics. At temperatures of 450 degreesC, poly(methyl methacrylate) (PMMA) is depolymerised to more than 98% of the monomer. The influence of fillers on the monomer yield has been studied. Polystyrene as feed gives up to 75% of styrene and 10% of oligomers. First demonstration plants are running for feedstock recycling of PMMA in a fluidised bed. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1045 / 1050

页数：6

共 35 条

[1]

[Anonymous], 2000, METALLOCENE BASED PO

[2]

[Anonymous], METALLOCENE BASED PO

[3]

*APME, 2000, AN PLAST CONS REC PL

[4] The phenomenology of comminution in the fluidized bed combustion of packaging-derived fuels [J].

Arena, U ;

Cammarota, A ;

Mastellone, ML .

FUEL, 1998, 77 (11) :1185-1193

[5] Mechanisms and kinetics of thermal decomposition of plastics from isothermal and dynamic measurements [J].

Bockhorn, H ;

Hornung, A ;

Hornung, U .

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 1999, 50 (02) :77-101

[6]

Brandrup S., 1996, RECYCLING RECOVERY P

[7] Catalytic plastics cracking for recovery of gasoline-range hydrocarbons from municipal plastic wastes [J].

Buekens, AG ;

Huang, H .

RESOURCES CONSERVATION AND RECYCLING, 1998, 23 (03) :163-181

[8] Tertiary recycling of polypropylene by catalytic cracking in a semibatch stirred reactor - Use of spent equilibrium FCC commercial catalyst [J].

Cardona, SC ;

Corma, A .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2000, 25 (2-3) :151-162

[9] Zirconocenes as initiators for carbocationic isobutene homo- and copolymerizations [J].

Carr, AG ;

Dawson, DM ;

Bochmann, M .

MACROMOLECULES, 1998, 31 (07) :2035-2040

[10]

Fontana A., 2001, ERDOL KOHLE ERDGAS P, V117, P362

← 1 2 3 4 →