Novel calcium based sorbent (Ca-C) for the dehalogenation (Br, Cl) process during halogenated mixed plastic (PP/PE/PS/PVC and HIPS-Br) pyrolysis

Bhaskar, Thallada; Matsui, Toshiki; Kaneko, Jun; Uddin, Md. Azhar; Muto, Akinori; Sakata, Yusaku

doi:10.1039/b203745a

Cited by 83 publications

(53 citation statements)

References 20 publications

(19 reference statements)

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“…Chemical recycling of plastics by thermal decomposition of WEEE has attracted interest as a promising technology. Upon thermal decomposition, the plastic polymer is converted into oil, residual carbon, and gases, which can be used as a chemical raw material and fuel [6]. Furthermore, there is a rich literature on basic research and chemical recycling of waste plastic based on thermal decomposition in the presence of a catalyst [7]- [18].…”

Section: Introductionmentioning

confidence: 99%

Effect of Hydrotalcite on Bromine Content in Oil Produced from the Pyrolysis of Acrylonitrile-Butadiene-Styrene Plastics

Morita¹,

Nakayasu²,

Wajima³

et al. 2016

IJCEA

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Abstract-In this study, a method is presented to reduce the halogen concentration in the oil produced upon pyrolysis of acrylonitrile-butadiene-styrene (ABS) resins containing brominated flame retardants. More specifically, hydrotalcite was added to a predetermined amount of ABS in a glass reactor, and subjected to pyrolysis at 400 °C in nitrogen atmosphere. The bromine content in the product oil, residue, and gas released upon pyrolysis was analyzed. The main components of the product oil following pyrolysis of ABS in the absence of hydrotalcite additive were toluene, ethylbenzene, styrene, 1-bromomethyl-4-methylbenzene, phenol, n-butyl benzene, 1-methoxy-1-methylethyl benzene, and bromine compounds 2-bromophenol, 4-benzyloxy bromobenzene, 2,6 dibromophenol, and 2-bromotoluene. In contrast, the content of bromine in the product oil decreased when hydrotalcite was added to ABS. Moreover, negligible amounts of bromine were detected when the amount of added hydrotalcite was greater than 8 g. The reduced content of bromine in the product oil was attributed to the efficient trapping of bromine in the hydrotalcite matrix (as determined by the content of bromine in the residue).

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Section: Introductionmentioning

confidence: 99%

Effect of Hydrotalcite on Bromine Content in Oil Produced from the Pyrolysis of Acrylonitrile-Butadiene-Styrene Plastics

Morita¹,

Nakayasu²,

Wajima³

et al. 2016

IJCEA

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“…Thus far, chemical recycling was thought as an attractive recycling method of waste plastic whose products could potentially be used as fuels, raw materials or as chemical feedstock [10]. The existing method for recycling of BFRs-containing plastics is mainly pyrolysis; however, extra problems were encountered in the process which was mainly caused by BFRs.…”

Section: Introductionmentioning

confidence: 99%

Degradation of brominated flame retardant in computer housing plastic by supercritical fluids

Wang

Zhang

2012

Journal of Hazardous Materials

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“…ZnO promoted the [66] formation of carbonaceous residue, while the residue was reduced in the presence of CaO. Bhaskar et al [74,75] developed a chlorine sorbent consisting of 90 wt% CaCO 3 and 10 wt% phenol resin. This sorbent was successfully used in the dehalogenation of mixed plastics consisting of polyolefins, high-impact PS (HIPS) containing a brominated flame retardant, and PVC at 430°C.…”

Section: Dehalogenationmentioning

confidence: 99%

Feedstock recycling of waste polymeric material

Grause

Buekens

Sakata

et al. 2011

J Mater Cycles Waste Manag

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The first International Symposium on Feedstock Recycling of Polymeric Materials (ISFR) was hosted in 1999 in Sendai, Japan. Since then, the ISFR has been held five times in different places in Asia and Europe. Each of these conferences focused on special issues covered by the Journal of Material Cycles and Waste Management. The topics included thermal processes with and without catalysts, wet processes in various solvents, the dehydrochlorination of PVC, mechanical recycling and separation techniques, as well as the treatment of biomaterials. This review is a compilation of the most interesting and important developments discussed at the ISFR during the last decade.

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Novel calcium based sorbent (Ca-C) for the dehalogenation (Br, Cl) process during halogenated mixed plastic (PP/PE/PS/PVC and HIPS-Br) pyrolysis

Cited by 83 publications

References 20 publications

Effect of Hydrotalcite on Bromine Content in Oil Produced from the Pyrolysis of Acrylonitrile-Butadiene-Styrene Plastics

Effect of Hydrotalcite on Bromine Content in Oil Produced from the Pyrolysis of Acrylonitrile-Butadiene-Styrene Plastics

Degradation of brominated flame retardant in computer housing plastic by supercritical fluids

Feedstock recycling of waste polymeric material

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