Impact of pyrolysis temperature and activation on oily sludge-derived char for Pb(II) and Cd(II) removal from aqueous solution

Tian, Yuan; Li, Jianbing; McGill, W. B.; Whitcombe, T. W.

doi:10.1007/s11356-020-10892-z

Cited by 10 publications

(6 citation statements)

References 47 publications

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“…On the other hand, Singh et al [10] also point out the influence of the composition of the mixture to be pyrolyzed on the specific surface area due to the variation in the chemical and physical properties of the different plastics. Similar results were obtained by Tian et al [27] studying sludge pyrolysis with a gradual increase in the specific surface area of the solids from 10.8 m 2 /g at 300 • C to 23.8 m 2 /g at 700 • C. As it happens with the specific surface area, the pore volume increases with increasing pyrolysis temperature, which determines that a higher pyrolysis temperature improves the properties of the solid product as an adsorbent. Regarding the pore size, it decreases as the pyrolysis temperature increases, with the highest value being 166.76 Å for 450 • C (approximately 3 times smaller for 550 • C).…”

Section: Effect Of the Operatingsupporting

confidence: 86%

“…The decrease in carbon can be attributed to the transformation of carbonaceous materials into CH 4 , CO 2 , CO and other aromatic gases or compounds, favored by the increase in temperature. Similarly, the increased release of volatile matter with increasing pyrolysis temperature causes the loss of functional group, which explains the decrease in hydrogen and nitrogen content [27].…”

Section: Effect Of the Operatingmentioning

confidence: 99%

“…Between them, adsorption onto low-cost and available adsorbents is a promising method [21]. Some studies have applied chars produced by pyrolysis as low-cost adsorbents of lead from aqueous solutions and have reported good adsorption properties that in general varied with pyrolysis temperature [22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

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Characterization and Use of Char Produced from Pyrolysis of Post-Consumer Mixed Plastic Waste

Martín-Lara

Pinar

Ligero

et al. 2021

Water

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In this work, the pyrolysis of post-consumer mixed plastic waste (polypropylene (PP), polystyrene (PS) and polyethylene film (PE)) is carried out. The solid product of the pyrolysis is characterized and tested for its use as adsorbent of lead present in aqueous media. The pyrolysis temperature has a great influence on the solid product yield, decreasing when the temperature increases. The highest yield to solid product obtained is from the pyrolysis of film at lower temperature (450 °C), reaching almost 14%. The results of product solid characterization reveal that the carbon, hydrogen and nitrogen content decreases with increasing pyrolysis temperature. Furthermore, both the ash and the volatile content are related to the pyrolysis temperature. The ash content is higher when the pyrolysis temperature is higher, while when the temperature increases, a solid product with lower volatile content is obtained. In respect to specific surface area, a higher pyrolysis temperature improves the properties of the solid product as an adsorbent. The adsorption capacity increases as the pyrolysis temperature increases, with the highest value of 7.91 mg/g for the solid obtained in the pyrolysis at 550 °C. In addition, adsorption capacity increases as the initial concentration of lead rises, reaching a maximum value close to 26 mg/g for an initial concentration of 40 mg/L. The Sips model is the one that best reproduces the experimental results of the adsorption process equilibrium study.

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Section: Effect Of the Operatingsupporting

confidence: 86%

Section: Effect Of the Operatingmentioning

confidence: 99%

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Characterization and Use of Char Produced from Pyrolysis of Post-Consumer Mixed Plastic Waste

Martín-Lara

Pinar

Ligero

et al. 2021

Water

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“…Also, the higher heating value of char reduces with increasing pyrolysis temperature. In Martín-Lara et al (2021) also found the higher heating value is reduced from 23.94 MJ/kg at 400 C to 3.69 MJ/kg at 550 C. This could be explained by the loss carbon, hydrogen, and nitrogen with volatile matters, which are the main elements of the source of energy (Tian et al, 2021). Buah et al (2007) also showed that proportions of C/H/N in char were decreased from 55.13%/4.33%/1.02% at 400 C to 49.91%/0.78%/0.93% at 700 C. it has been further demonstrated by a number of studies the functional group (C, H, N) of char to be used as a fuel is decreased with increasing pyrolysis temperature (Cafiero et al, 2015;Jamradloedluk & Lertsatitthanakorn, 2014;L opez et al, 2010).…”

Section: Charmentioning

confidence: 93%

“…In Martín‐Lara et al (2021) also found the higher heating value is reduced from 23.94 MJ/kg at 400°C to 3.69 MJ/kg at 550°C. This could be explained by the loss carbon, hydrogen, and nitrogen with volatile matters, which are the main elements of the source of energy (Tian et al, 2021). Buah et al (2007) also showed that proportions of C/H/N in char were decreased from 55.13%/4.33%/1.02% at 400°C to 49.91%/0.78%/0.93% at 700°C.…”

Section: Mpw Pyrolysis Product Applicationsmentioning

confidence: 99%

A review on catalytic pyrolysis of municipal plastic waste

Biakhmetov,

Dostiyarov,

et al. 2023

WIREs Energy & Environment

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Plastic pollution is a global issue that severely threatens the environment if not managed properly. Plastic waste is widely treated in unsustainable ways such as landfill and incineration that generally do not contribute to the circular economy or to the principles of the United Nation's sustainable development goals. Catalytic pyrolysis of plastic waste is considered an alternative solution with its potential of recovering fuels and chemicals from the plastic waste that is not recyclable. Here, we described for the first time the main steps required for running an operational pyrolysis plant from a whole system perspective. The recent advancement of plastic pyrolysis technologies is also described to guide the selection of relevant catalysts. The practical applications of products from the plastic pyrolysis are succinctly reviewed. This review will facilitate the development of the capacity to make better decisions upon the design and analysis of plastic pyrolysis processes and systems.This article is categorized under: Sustainable Energy > Bioenergy Climate and Environment > Circular Economy Emerging Technologies > Materials Sustainable Energy > Energy Efficiency

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Conversion of oily sludge into char via pyrolysis and microwave processes: physicochemical property and energy characteristic

Abdulqader

Abdulhameed

Jawad

et al. 2022

Biomass Conv. Bioref.

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Impact of pyrolysis temperature and activation on oily sludge-derived char for Pb(II) and Cd(II) removal from aqueous solution

Cited by 10 publications

References 47 publications

Characterization and Use of Char Produced from Pyrolysis of Post-Consumer Mixed Plastic Waste

Characterization and Use of Char Produced from Pyrolysis of Post-Consumer Mixed Plastic Waste

A review on catalytic pyrolysis of municipal plastic waste

Conversion of oily sludge into char via pyrolysis and microwave processes: physicochemical property and energy characteristic

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