Co-pyrolysis of oil shale and plastics: Influence of pyrolysis parameters on the product yields

Aboulkas, A.; Makayssi, T.; Bilali, L.; harfi, K. El; Nadifiyine, M.; Benchanâa, M.

doi:10.1016/j.fuproc.2011.12.001

Cited by 69 publications

(43 citation statements)

References 33 publications

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“…Thermochemical conversion process presents several environmental advantages such as the reduction in mass and volume of disposed solids, the reduction in pollutants and the potential for energy recovery [5][6][7][8][9][10][11][12][13][14]. Thermochemical conversion process such as pyrolysis could be an alternative and viable option for environmentally acceptable way to manage olive mill wastes disposal.…”

Section: Introductionmentioning

confidence: 99%

Thermochemical treatment of olive mill solid waste and olive mill wastewater

Guida

Bouaik

Tabal

et al. 2015

J Therm Anal Calorim

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In olive-oil-producing countries, large amounts of waste material are generated as by-product for which there is no ready use and in some cases may have a negative value because of the cost of disposal. Most of these countries depend on fossil fuels for their energy uses, and olive mill wastes can be used to supplement such energy sources using thermochemical conversion processes such as pyrolysis. However, efficient operation of thermochemical conversion systems requires a thorough understanding of the influence of the composition and thermal properties of these byproducts on their behaviour during the conversion process. In this study, the thermal behaviour of two olive mill wastes samples (olive mill solid waste: OMSW, and concentrated olive mill wastewater: COMWW) was examined at different heating rates ranging from 5 to 50°C min -1 in inert atmosphere using the technique of thermogravimetric analysis. As the increment of heating rates, the variations of characteristic parameters from the TG-DTG curves were determined. The initial temperature of degradation is higher in OMSW, which present a high amount of cellulose in comparison with COMWW. Three methods were used for the determination of kinetic reaction parameters: Friedman, Ozawa-Flynn-Wall and Vyazovkin methods. The results showed that apparent activation energy obtained for the decomposition of hemicelluloses and cellulose derived from OMSW was given as 150-176 and 210.5-235.7 kJ mol -1 , while for COMWW, the values were 133-145 and 255-275 kJ mol -1 , respectively.

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Section: Introductionmentioning

confidence: 99%

Thermochemical treatment of olive mill solid waste and olive mill wastewater

Guida

Bouaik

Tabal

et al. 2015

J Therm Anal Calorim

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“…Both saturated and unsaturated compounds were identified by the IR measurement. The intense peaks at 2,922, 2,852, 1,455 and 1,376 cm −1 represented the CH bond bending and stretching vibrations in saturated hydrocarbons . The peaks that appeared at 800, 1,666, and 1,709 cm −1 were attributed to the aromatic CC bond vibrations in the olefin and aromatic compounds.…”

Section: Resultsmentioning

confidence: 98%

“…Contents of C and H are important indicators for the quality of any petroleum liquid including shale oil . For commercial shale oil, the average contents of C and H are 77.45 and 9.7% respectively, while the H/C atomic ratio is 1.5 .…”

Section: Resultsmentioning

confidence: 99%

“…In fact, extraction of bitumen from oil shale before retorting is recommended to get better oil quality and to reduce production of S and N gases . Aboulkas et al studied the quality of shale oil obtained by thermal retorting at 520°C. They concluded that, the level of extracted oil was 7.6% while the sum of aliphatic and aromatics compounds were 80% .…”

Section: Introductionmentioning

confidence: 99%

“…2,[8][9][10][11][12][13] In fact, extraction of bitumen from oil shale before retorting is recommended to get better oil quality and to reduce production of S and N gases. 2,14 Aboulkas et al [15][16][17][18] studied the quality of shale oil obtained by thermal retorting at 520 C. They concluded that, the level of extracted oil was 7.6% while the sum of aliphatic and aromatics compounds were 80%. 15 In a different study, shale oil was thermally extracted from kerogen-rich oil shale and the results indicated the presence of 55% aliphatics with aromatics making 12% of the extracted oil.…”

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confidence: 99%

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Structural characterization of shale oil obtained by Soxhlet extraction

Al-Saqarat

Al‐Degs

Musleh

et al. 2019

Env Prog and Sustain Energy

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Organic matter recovery by solvent extraction has been the focus of numerous research area. In this work, recovery of organic matter from oil shale was evaluated by using Soxhelt extraction. Better oil extraction was reported after preheating of the shale to 300°C in inert atmosphere. The extracted oil was fractionated to asphaltenes, aliphatics, aromatics, and polar compounds with percentages of 4.2%, 52.6%, 20.9%, and 22.3% respectively. Compared with thermal retorting, the oil obtained by solvent extraction has higher aliphatics and polar compounds. Following a proper design of experiments, oil recovery was correlated with the following experimental factors:Extraction OM% = 7.39 + 2.23 Temp + 0.20 Mass – 0.34 PS − 0.022 Ext Time + 0.13 Temp × Mass – 0.28 Temp × PS – 0.30 Mass × PS. The results indicated that preheating temperature and mass of oil shale were positively correlated with oil extraction. However, particle size/preheating temperature and mass/particle size were negatively interacted for better oil extraction. Optimum conditions for oil recovery were accomplished using tetrahydrofuran at solid‐to‐liquid ratio of 50:1 g/mL, particle size 200−250 μm, and extraction time of 8.0 hr.

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Environmental Aspects

2018

Polymer Waste Management

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Co-pyrolysis of oil shale and plastics: Influence of pyrolysis parameters on the product yields

Cited by 69 publications

References 33 publications

Thermochemical treatment of olive mill solid waste and olive mill wastewater

Thermochemical treatment of olive mill solid waste and olive mill wastewater

Structural characterization of shale oil obtained by Soxhlet extraction

Environmental Aspects

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