Prediction of liquid yields from the pyrolysis of waste mixtures using response surface methodology

Pinto, Filomena; Paradela, Filipe; Gulyurtlu, I.; Ramos, A.M.

doi:10.1016/j.fuproc.2013.07.012

Cited by 43 publications

(22 citation statements)

References 15 publications

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“…32 Biomass is available in bulk and can be found in agricultural residues (rice husk, pine cone, bagasse, wheat straw, etc. [33][34][35][36][37], wood residues (pine, weed, and fir sawdust 38 ), and in industrial and municipal solid wastes (palm shell, wheat straw, legume straw, walnut shell, and so on 31,[39][40][41][42][43]. Natural rubber is a biomass usually obtained from the rubber tree, guayule plant, russian dandelion, and rubber rabbitbrush.…”

Section: Introductionmentioning

confidence: 99%

Potential use of natural rubber to produce liquid fuels using hydrous pyrolysis – a review

2016

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Natural rubber is a tropical plantation crop that mainly consists of hydrocarbon polyisoprene (cis-1,4-polyisoprene). Rubber can be converted through depolymerization into liquid, which can be used as fuels or chemical feedstock. This paper provides information on natural rubber and its alternative sources worldwide. Although we focus on hydrous pyrolysis, we also introduced various depolymerization processes, including pyrolysis, gasification, chemical degradation, catalytic cracking and hydrogenation. Hydrous pyrolysis improves the depolymerization process, such that raw materials can be fed without requiring a drying process. This process can also be conducted at low temperatures, and water can be solely used as reaction medium and can be easily separated from the oil product. This paper also reviews the role of process parameters such as temperature, rubber to water ratio, reaction time, and type of gases on product quality and quantity. Moreover, this study highlights the environmental and economic feasibility of hydrous pyrolysis.

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Section: Introductionmentioning

confidence: 99%

Potential use of natural rubber to produce liquid fuels using hydrous pyrolysis – a review

2016

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“…By utilizing this methodology, optimization of reaction parameters can be achieved. Kumar and Singh [28] [29] focused on the optimization of reaction parameters in co-pyrolysis of waste plastics with pine and scrap tires. The maximum total liquid production was 79.1% at 426°C, 28 min and 0.2 MPa.…”

Section: Pyrolysis Of Low Density Polyethylene Waste Inmentioning

confidence: 99%

Pyrolysis of low density polyethylene waste in subcritical water optimized by response surface methodology

Wong

Amin

Abdullah

et al. 2015

Environmental Technology

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Pyrolysis of low density polyethylene (LDPE) waste from local waste separation company in subcritical water was conducted to investigate the effect of reaction time, temperature, as well as the mass ratio of water to polymer on the liquid yield. The data obtained from the study were used to optimize the liquid yield using response surface methodology. The range of reaction temperature used was 162-338°C, while the reaction time ranged from 37 min to 143 min, and the ratio of water to polymer ranged from 1.9 to 7.1. It was found that pyrolysis of LDPE waste in subcritical water produced hydrogen, methane, carbon monoxide and carbon dioxide, while the liquid product contained alkanes and alkenes with 10-50 carbons atoms, as well as heptadecanone, dichloroacetic acid and heptadecyl ester. The optimized conditions were 152.3°C, reaction time of 1.2 min and ratio of water solution to polymer of 32.7, with the optimum liquid yield of 13.6 wt% and gases yield of 2.6 wt%.

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“…A number of studies of liquid fuel production from pyrolysis of waste plastics have been reported at various scales and with varying success Panda et al, 2012;Pinto et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…The FDM and RSM to predict the influence of experimental conditions on product yields formed from waste mixtures pyrolysis has been used for optimizing the reaction-time, the temperature and the initial pressure, in order to maximize the yield and composition of pyrolytic oil products from the waste mixture studied (Miranda et al, 2010;Pinto et al, 2013). RSM was successfully applied to enhance styrene yield from plastic mixture pyrolysis (Mo et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Enhanced diesel fuel fraction from waste high-density polyethylene and heavy gas oil pyrolysis using factorial design methodology

2015

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Prediction of liquid yields from the pyrolysis of waste mixtures using response surface methodology

Cited by 43 publications

References 15 publications

Potential use of natural rubber to produce liquid fuels using hydrous pyrolysis – a review

Potential use of natural rubber to produce liquid fuels using hydrous pyrolysis – a review

Pyrolysis of low density polyethylene waste in subcritical water optimized by response surface methodology

Enhanced diesel fuel fraction from waste high-density polyethylene and heavy gas oil pyrolysis using factorial design methodology

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