Pyrolysis of creosote-treated railroad ties to recover creosote and produce biochar

Gonzalez, Javier M.; Boddu, Veera M.; Jackson, Michael A.; Moser, Bryan R.; Ray, P.

doi:10.1016/j.jaap.2020.104826

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…Biochar modification scenarios under H 2 O 2 oxidation from different feedstocks and pyrolysis conditions were investigated by Ghorbani et al, achieving enhanced specific surface area and porosity in all oxidized bio-chars [40]. Moreover, biochar production from carbonization of biomass or de-oiled wastes on a pilot scale or above was of engineering and energetically interest owing to its industrially viable and ease to operate, as liquids could be burnt to supply heat for carbonization but with difficulty in swift purge and cool of volatiles generated in reaction zone, which was defined by the fixation of effective carbon into solid chars, whereas pyrolysis for liquids aiming at elevating the effective carbon content for more condensable volatiles acquisition [41][42][43]. In this research, the yield of biochar declined from 41.8 to 21.8 wt.% by an augmented reaction temperature ranging from 400 to 800 • C (seen in Table S1).…”

Section: Effect Of Pyrolysis Temperatures On Characteristics Of Bio-c...mentioning

confidence: 99%

Slow Pyrolysis of De-Oiled Rapeseed Cake: Influence of Pyrolysis Parameters on the Yield and Characteristics of the Liquid Obtained

Wang,

Zhao,

2024

Energies

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Pyrolysis of biomass converts all components into liquid, gaseous, and solid products without the need for component separation. However, the composition of liquid products from lignocellulosic biomass is usually complex and difficult to upgrade. Slow pyrolysis of de-oiled rapeseed cake, an agricultural waste from the rapeseed pressing process, was carried out for liquid and solid fuel production. The maximum yield of bio-oil obtained was 51.6 wt.% under the optimized conditions. The HHV of the bio-oil, containing mainly acids, hydrocarbons, esters, and alcohols, was 32.82 MJ·kg−1, similar to that of bio-diesel, to be promising in downstream upgrading because the fuel properties such as higher caloric value, limited moisture content, as well as neutral pH value, were close to commercial bio-diesel. The gaseous fraction mainly consisted of CO, C1, C2 hydrocarbons, H2, and CO2, and the corresponding LHV reached 7.63 MJ·Nm−3. The yield of bio-chars declined from 41.8 wt.% at 400 °C to 28.8 wt.% at 800 °C, whereas the corresponding HHV varied from 29.03 MJ·kg−1 to 30.14 MJ·kg−1, comparative to coal, indicating a promising candidate for solid fuels or functional carbon. The liquid product shows promise as feedstock for producing high-quality fuel.

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Section: Effect Of Pyrolysis Temperatures On Characteristics Of Bio-c...mentioning

confidence: 99%

Slow Pyrolysis of De-Oiled Rapeseed Cake: Influence of Pyrolysis Parameters on the Yield and Characteristics of the Liquid Obtained

Wang,

Zhao,

2024

Energies

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“…Gonzalez et al [ 14 ] performed an experimental investigation on the possibilities of using biochar from creosote-impregnated wooden ties for soil amendment. They conducted pyrolysis at 667 and 700 °C, and the char produced with higher temperatures had lower PAH content.…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis and Torrefaction—Thermal Treatment of Creosote-Impregnated Railroad Ties as a Method of Utilization

et al. 2023

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A fundamental issue of waste management and the rail transport industry is the problem of utilizing used railroad ties. Wooden railroad ties are treated with a preservative, usually creosote. Due to their high toxicity, railroad ties are considered hazardous waste and must be utilized under various directives. It is proposed to utilize the troublesome waste by using the pyrolysis and torrefaction process. The research proves that the thermal method is effective for disposing of this type of waste. Torrefaction up to 250 °C gives high efficiency of impregnation removal, while pyrolysis up to 400 °C completely neutralizes waste. A series of experiments were conducted for various final pyrolysis temperatures to determine a minimum temperature for which the obtained solid products are free from creosote. Extraction with the use of the Soxhlet technique was performed for the raw materials and the obtained solid products—chars. The oil content for liquid fraction was also examined for each sample. As a result of the thermal treatment of the waste, fuel with combustion parameters better than wood was obtained. For a high final temperature of the process, the calorific value of char is close to that of hard coal.

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Potential of removing Pb, Cd, and Cu from aqueous solutions using a novel modified ginkgo leaves biochar by simply one-step pyrolysis

Wang

Luo

Zhu

et al. 2021

Biomass Conv. Bioref.

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Pyrolysis of creosote-treated railroad ties to recover creosote and produce biochar

Cited by 3 publications

References 26 publications

Slow Pyrolysis of De-Oiled Rapeseed Cake: Influence of Pyrolysis Parameters on the Yield and Characteristics of the Liquid Obtained

Slow Pyrolysis of De-Oiled Rapeseed Cake: Influence of Pyrolysis Parameters on the Yield and Characteristics of the Liquid Obtained

Pyrolysis and Torrefaction—Thermal Treatment of Creosote-Impregnated Railroad Ties as a Method of Utilization

Potential of removing Pb, Cd, and Cu from aqueous solutions using a novel modified ginkgo leaves biochar by simply one-step pyrolysis

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