Pyrolysis of polystyrene in a batch-type stirred vessel

Kim, Young Sil; Hwang, Gyou Chul; Bae, Seung Yong; Yi, Sung Chul; Moon, Sei-Ki; Kumazawa, H.

doi:10.1007/bf02706830

Cited by 51 publications

(31 citation statements)

References 11 publications

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“…The pyrolysis temperatures were measured for each type of postconsumer plastic and are reported in Figure 2. The pyrolysis temperature of PS is slightly higher than what have found by Kim et al (1999) (in the range of 370-400 C). The pyrolysis temperature of PS is slightly higher than what have found by Kim et al (1999) (in the range of 370-400 C).…”

Section: Tga Analysis Of Post-consumer Plasticscontrasting

confidence: 63%

“…It is evident from Figure 2 that PS Foam has the lowest pyrolysis temperature compared to all the other plastics. The pyrolysis temperature of PS is slightly higher than what have found by Kim et al (1999) (in the range of 370-400 C). The pyrolysis temperature of PS Foam is lower than PS Rigid is due to the lower density and low molecular weight of the PS Foam.…”

Section: Tga Analysis Of Post-consumer Plasticscontrasting

confidence: 63%

“…It normally occurs at a temperature range of 350-800 C depending on the type of polymer and operating pressure. Kim et al [10] states differently that the pyrolysis of PS occurs at 470-490 C in a batch-type stirred vessel. While some other researchers found out that the decomposition of tires under air-free condition can occur at temperature up to 800 C under vacuum condition [8].…”

Section: Introductionmentioning

confidence: 99%

“…In Liu's [9] research, he stated that the pyrolysis temperature for PS is at the range of 450-700 C in a fluidized bed reactor. Kim et al [10] states differently that the pyrolysis of PS occurs at 470-490 C in a batch-type stirred vessel. Different types of plastics have different thermal behaviors during pyrolysis.…”

Section: Introductionmentioning

confidence: 99%

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Effect of binary mixture of waste plastics on the thermal behavior of pyrolysis process

Pek

Ghosh

2015

Env Prog and Sustain Energy

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Waste plastic is non‐biodegradable material that does not decompose naturally for a long time. The pyrolysis process is a reliable method to decompose plastic wastes, which involves breaking of the heavy carbon chains and convert to light hydrocarbons. The light hydrocarbon products can be used as fuel to power vehicles and power stations. Pyrolysis experiment was conducted using thermogravimetric analysis (TGA)/DSC equipment for different types of non‐recyclable waste plastics: PET, HDPE, LDPE, PP, PS foam, and PS rigid. Investigations have been done to study the effect of binary mixture composition of PP and HDPE on pyrolysis behavior. Interactions between the plastics have been found to occur at the mixture composition range of 20–80 wt %. The decomposition rates of the individual plastics enhanced after the binary mixing of the different types of plastics. It was also found that secondary reaction occurred when mixing two types of plastics. The activation energy of the first step pyrolysis reaction is also higher than the secondary reaction. Overall, the activation energy of the pyrolysis reaction is decreased by 55% at the range of 20–80 wt % of binary mixture composition. © 2015 American Institute of Chemical Engineers Environ Prog, 34: 1113–1119, 2015

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Section: Tga Analysis Of Post-consumer Plasticscontrasting

confidence: 63%

Section: Tga Analysis Of Post-consumer Plasticscontrasting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of binary mixture of waste plastics on the thermal behavior of pyrolysis process

Pek

Ghosh

2015

Env Prog and Sustain Energy

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“…At low temperatures, products mainly consist of liquid compounds (mono aromatic). At higher temperatures, gas and coke yields are higher and the liquid fraction has significant aromatics (dimer, trimer) [ 27 , 28 , 29 , 30 ]. The pyrolysis of polystyrene had been previously investigated at a comparatively lower temperature ranging from 370 °C to 400 °C employing a batch-type stirred reactor.…”

Section: Pyrolysis Of Polystyrenementioning

confidence: 99%

Pyrolysis of Polystyrene Waste: A Review

Maafa

2021

Polymers

165

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The manufacturing of polystyrene around the globe has escalated in the past years due to its huge applications in various areas. The perpetual market needs of polystyrene led the polystyrene wastes accretion in the landfill causing environmental deterioration. The soaring need for polystyrene also led to the exhaustion of petroleum, a non-renewable energy source, as polystyrene is a petroleum-derived product. Researchers from around the world have discovered a few techniques to take care of the polystyrene scraps, namely recycling and energy recovery techniques. Nevertheless, there are demerits involved with recycling techniques, such as they call for huge labor expenses in the separation process and cause water pollution, thereby decreasing the process sustainability. Owing to these demerits, the researchers have focused their attention on the energy recovery technique. Since petroleum is the main ingredient of polystyrene synthesis, the restoration of liquid oil from polystyrene via the pyrolysis method is a promising technique as the recovered oil has greater calorific value as compared to commercially available fuel. The present paper surveys the pyrolysis technique for polystyrene and the important process parameters that control the end product, like oil, gas, and char. The chief process parameters that are discussed in this review paper include the type of reactors, temperature, residence time, pressure, catalyst types, type of fluidizing gases, and their flow rate. A more recent technique of utilizing a solvent to perform pyrolysis and the effect of various process conditions on the product yield have been discussed. Apart from this, various outlooks to optimize the liquid oil recovery from polystyrene are also reviewed.

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Recycling of Waste Plastics → Plastics Circularity

2023

Converting Power Into Chemicals and Fuels

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Pyrolysis of polystyrene in a batch-type stirred vessel

Cited by 51 publications

References 11 publications

Effect of binary mixture of waste plastics on the thermal behavior of pyrolysis process

Effect of binary mixture of waste plastics on the thermal behavior of pyrolysis process

Pyrolysis of Polystyrene Waste: A Review

Recycling of Waste Plastics → Plastics Circularity

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