Overview of Commercial Pyrolysis Processes for Waste Plastics

Scheirs, John

doi:10.1002/0470021543.ch15

Cited by 92 publications

(103 citation statements)

References 18 publications

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“…Nowadays the production and consumption of plastics are more than ever because of modern lifestyle and an urgent need for comfort. As a consequence, responsible disposal of plastic waste has created serious social and environmental arguments [2]. Plastics have become essential materials and their applications in the industrial field are continually increasing.…”

Section: Introductionmentioning

confidence: 99%

“…The produced liquid fuel is attractive because its properties show its potential for use as chemical feedstock or fuel. The waste plastic oil was compared with petroleum products and it was found that it can also be used as fuel in compression ignition engines [2]. Thermal cracking of polyethylene and polypropylene is usually carried out either in high temperatures to produce an olefin mixture (C 1 -C 4 ) and aromatic compounds including benzene, toluene and xylene or in lower temperatures of 400-500°C where three elements are produced: a high-calorific value gas, condensable hydrocarbon oil, and waxes [1], [8].…”

Section: Introductionmentioning

confidence: 99%

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The Production of Fuel Oil by Conventional Slow Pyrolysis Using Plastic Waste from a Municipal Landfill

Santaweesuk¹,

Janyalertadun²

2017

IJESD

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 Abstract-This paper presents the study and experimentation of fuel oil production by conventional slow pyrolysis using plastic waste from a municipal landfill. The different proportions of liquid fuel produced from landfill plastic obtained by non-catalyst conventional slow pyrolysis were studied. The landfill plastic was collected from Warinchamrap municipality landfill, in Thailand. The investigation of recycling of model and waste products based on PP, LDPE, HDPE, and mixed plastic were examined using conventional slow pyrolysis and distillation methods. The experimental results show that the reactivity of conventional slow pyrolysis and distillation can be controlled by temperature, time, and energy. The various types of plastic found in the municipal landfill were converted into differing amounts of liquid fuel. PP was converted into 80% liquid fuel, LDPE 73% to liquid fuel, HDPE to 70% liquid fuel, and mixed plastic to 46% liquid fuel. The distillation liquid fuel included high-quality liquid fuels. The liquid fuels derived from the waste plastic found in the municipal landfill was similar to petroleum diesel oil.Index Terms-Conventional slow pyrolysis, pyrolysis, municipal landfill, waste plastic oil.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Production of Fuel Oil by Conventional Slow Pyrolysis Using Plastic Waste from a Municipal Landfill

Santaweesuk¹,

Janyalertadun²

2017

IJESD

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“…It should be noted that the liquid 6 energy-carrying medium that it produces is easy to store and so can be used on demand, and has a 7 higher economic value than, for example, electricity produced via energy recovery from waste. 8 Furthermore, pyrolysis can be employed alongside mechanical recycling and incineration in a cascaded 9 waste management infrastructure so should be viewed as a component of a waste management system 10 rather than a competing technology. The cascade recycling concept is illustrated in Fig 1 MSW arriving 11 at local sorting facilities is concentrated into an MPW fraction suitable for materials recycling, while 12 other fractions (e.g.…”

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confidence: 99%

“…18 The first attempts to produce liquid fuels from plastic occurred during the mid 70's and early 80's [7]. 21 Since then, pyrolysis of plastic has been achieved on a commercial scale, albeit to a limited extent [8]. 22 There are several pilot and commercial plants in Japan where high plastic recovery rates are mandated 23 by legislation.…”

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confidence: 99%

“…Whereas char is a product of pyrolytic decomposition of carbonaceous feedstocks, coke is a 7 carbonaceous deposit formed on catalysts during the conversion of pyrolysis products to products with 8 higher H/C ratios. It is generated in different quantities based on the type of catalyst used: 10 wt% on 9 USY, 5 wt% on commercial cracking catalysts, and <1 wt% with ZSM catalysts [7], and its nature and 10 quantity vary depending on the feedstock, operating conditions, and catalyst used [52,53] Catalysts for cracking of polyolefin wastes are reviewed in previous publications [38,50,7,57,58,8,24]. 34…”

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Waste Polyolefins to Liquid Fuels via Pyrolysis: Review of Commercial State-of-the-Art and Recent Laboratory Research

Butler

Devlin

McDonnell

2011

Waste Biomass Valor

217

141

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11With generation of waste plastics increasing, current EU legislation dictates high recovery rates and 12 policy favours waste management technology choices that occupy a high position on the waste 13 management hierarchy. Pyrolysis is a thermochemical conversion technology that can be considered a 14 'feedstock recycling' process and may play an increasing role in integrated waste management systems 15 of the future. The objective of this article is to present a review of current state-of-the-art commercial 16 pyrolysis processes for the production of liquid transport fuels from waste polyolefins (polyethylenes 17 (PE) and polypropylenes (PP)). Current plastic waste generation and management practices are briefly 18 summarised. Waste management infrastructure in Europe is reliant on landfill, incineration and 19 mechanical recycling, while feedstock recycling plays an insignificant role. Plastic-to-liquid (PTL) 20 platforms including delocalised pyrolysis followed by centralised upgrading, stand alone facilities, and 21 integrated waste management infrastructure concepts are briefly discussed. Commercial operations and 22 their process configurations are compared. Reactor technology for cracking of plastic waste is 23 presented. Important issues like fuel quality and contamination are also discussed. Fuel finishing 24 operations and fuel additives required to achieve an engine ready fuel are described in the final section. 25Recently published laboratory research in thermal and catalytic pyrolysis and integrated and co-26 processing studies are also summarised in this review. 27 28 liquefaction; pyrolysis; waste; plastic; polyolefin; waste-to-energy; waste Keywords

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Chemical Recycling of Mixed Plastic Waste for the Production of Aromatics and Olefins as Monomers for Circular Polyolefins and Polycarbonate.SABIC TRUCIRCLE™ (Case Study)

Galan‐Sanchez

Dittrich

Zijl

et al. 2023

Industrial Arene Chemistry

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Overview of Commercial Pyrolysis Processes for Waste Plastics

Cited by 92 publications

References 18 publications

The Production of Fuel Oil by Conventional Slow Pyrolysis Using Plastic Waste from a Municipal Landfill

The Production of Fuel Oil by Conventional Slow Pyrolysis Using Plastic Waste from a Municipal Landfill

Waste Polyolefins to Liquid Fuels via Pyrolysis: Review of Commercial State-of-the-Art and Recent Laboratory Research

Chemical Recycling of Mixed Plastic Waste for the Production of Aromatics and Olefins as Monomers for Circular Polyolefins and Polycarbonate.SABIC TRUCIRCLE™ (Case Study)

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