Quality assessment of bio-oil and biochar from microwave-assisted pyrolysis of corn stover using different adsorbents

Fodah, Ahmed Elsayed Mahmoud; Ghosal, M. K.; Behera, D.

doi:10.1016/j.joei.2021.06.008

Cited by 20 publications

(15 citation statements)

References 63 publications

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“…These pyrolysis conditions were selected as it produced the higher yields of bio-oil along with biochar (desirable products for the present study) with high quality. Also, the AC additive can be used as an additive repeatedly used in the MAP process system for 25 days 4 , 24 . The cost of AC is USD 2.4/kg and the required quantity per batch is 75 kg (750 kg feedstock/batch × 10/100 ratio of AC).…”

Section: Resultsmentioning

confidence: 99%

“…The diagram of the experimental set-up, as well as other essential information on the experimental set-up and procedures followed, are detailed in our previous work 28 – 30 . Based on our prior work 4 , the experiments were conducted under different microwave powers of 500, 700, and 900 W and different ratios of AC additive (10, 20, and 30%) with a constant reaction time of 15 min.…”

Section: Methodsmentioning

confidence: 99%

“…However, around 60% of the gross residue generated remains surplus 1 – 3 , which becomes a great concern from the environmental point of view. Such a sustainable resource of bioenergy in Egypt (crop residues) needs to be properly utilized to strengthen the poor socio-economic conditions of the crop growers 4 . One such attempt is to derive biofuel and chemicals from underutilized crop residues in a sustainable manner.…”

Section: Introductionmentioning

confidence: 99%

“…One such attempt is to derive biofuel and chemicals from underutilized crop residues in a sustainable manner. This option would ultimately assist to earn extra income and reduce environmental pollution by disposing of neglected and surplus agro-residues safely and effectively 4 . One of the most important crop residues in Egypt and across the world is corn stover (CS).…”

Section: Introductionmentioning

confidence: 99%

“…Among the two usual processes, i.e., biological and thermochemical, for conversion of biomass into energy, the latter is preferable to convert the biomass into more useful products 5 , 6 . Pyrolysis is the rapid thermal decomposition of biomass into pyrolytic products such as biochar, bio-oil, and gas in the absence of oxygen 4 , 7 , with the goal of recovering both its chemical and energy value with high efficiency and low emissions 5 .…”

Section: Introductionmentioning

confidence: 99%

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Process optimization and technoeconomic environmental assessment of biofuel produced by solar powered microwave pyrolysis

Fodah

Abdelwahab

2022

Sci Rep

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Microwave pyrolysis of corn stover has been optimized by Response surface methodology under different microwave power (500, 700, and 900 W) and three ratios of activated carbon additive (10, 15, and 20%) for obtaining maximum bio-oil yield followed by biochar. The optimal result has been evaluated and the environmental and techno-economic impacts of using solar-powered microwave heating have been tested. The optimal pyrolysis condition found to be 700 W microwave power and 10% of activated carbon. The yields of both bio-oil and biochar were about 74 wt% under optimal condition. The higher heat values of 26 MJ/kg and 16 MJ/kg were respectively achieved for biochar and bio-oil. The major components of bio-oil were hydrocarbons (36%) and phenols (28%) with low oxygen-containing compounds (2%) and acids (2%). Using the solar-powered system, 20,549 tonnes of CO2 can be mitigated over the lifetime of the set-up, resulting in USD 51,373 in carbon credit earnings, compared to 16,875 tonnes of CO2 mitigation and USD 42,167 in carbon credit earnings from a grid electricity system. The payback periods for solar-powered and grid-connected electrical systems are estimated to be 1.6 and 0.5 years, respectively, based on biochar and bio-oil income of USD 39,700 and USD 45,400.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Process optimization and technoeconomic environmental assessment of biofuel produced by solar powered microwave pyrolysis

Fodah

Abdelwahab

2022

Sci Rep

Self Cite

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Polycyclic Aromatic Hydrocarbons Occurrences in Biomass Char and Its Mitigation Approaches: A Mini Review

et al. 2023

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Biochar is a porous fine‐grained substance produced from the pyrolysis technology of biomass that can be commercially used as a soil conditioner to promote soil fertility. Biochar is characterized by high carbon content, stability, and porosity. However, organic pollutants residue of polycyclic aromatic hydrocarbons (PAHs) is also formed during the pyrolysis of biochar. The high concentration of PAHs adversely degrades the quality of biochar for soil amendment application. Meanwhile, highly toxic‐PAHs concentration may pose a potential threat to both human health and the environment. The total PAHs yield is mainly influenced by the pyrolysis condition and feedstock resource. This review aims to discuss the conversion pyrolysis technology of biochar and factors that may influence the PAHs formation. The key research findings from this literature will lead to some strategies to minimize the PAHs compound in biochar by controlling the pyrolysis conditions through higher pyrolysis temperature, carrier gas flow, and prolonged pyrolysis time or by selecting suitable feedstock with lower lignin content.

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Optimization of MCP process of coconut cloths by response surface method and composition analysis of bio‑oil product

Wang

Cao

et al. 2022

Biomass Conv. Bioref.

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Quality assessment of bio-oil and biochar from microwave-assisted pyrolysis of corn stover using different adsorbents

Cited by 20 publications

References 63 publications

Process optimization and technoeconomic environmental assessment of biofuel produced by solar powered microwave pyrolysis

Process optimization and technoeconomic environmental assessment of biofuel produced by solar powered microwave pyrolysis

Polycyclic Aromatic Hydrocarbons Occurrences in Biomass Char and Its Mitigation Approaches: A Mini Review

Optimization of MCP process of coconut cloths by response surface method and composition analysis of bio‑oil product

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