Study of the pyrolysis of ionic liquid [Bmim]Cl-pretreated mango pit at low temperature

In the present work, mango pit was used to study the feasibility of converting ionic liquid-pretreated biomass into biofuel and activated biochar by using pyrolysis temperature as a key variable. Ionic liquid 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) was used as a green solvent to dissolve man...

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Bibliographic Details
Published in:Journal of material cycles and waste management 2023-07, Vol.25 (4), p.2326-2337
Main Authors: Dou, Guolan, Zhang, Liying
Format: Article
Language:English
Subjects:
Active control
Biodiesel fuels
Biofuels
Biogas
Biomass
Charcoal
Civil Engineering
Engineering
Environmental Management
Feasibility studies
High temperature
Ionic liquids
Ions
Low temperature
Mangoes
Original Article
Phenolic compounds
Phenols
Pretreatment
Pyrolysis
Temperature
Waste Management/Waste Technology
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Summary:In the present work, mango pit was used to study the feasibility of converting ionic liquid-pretreated biomass into biofuel and activated biochar by using pyrolysis temperature as a key variable. Ionic liquid 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) was used as a green solvent to dissolve mango pit. The impact of [Bmim]Cl on the pyrolysis properties at peak DTG temperature was investigated. Pretreatment with [Bmim]Cl was observed to slightly enhance biochar yield, while somewhat decreasing bio-oil and biogas yields. The yield of hydrogen and methane, as well as the generation of phenolic and alcoholic bio-oils, are increased by [Bmim]Cl pretreatment. [Bmim]Cl pretreatment was determined to promote the formation of pore structure, a greater number of pores were opened, and the BET surface areas increased 24 times. The pyrolysis kinetics were calculated using the DAEM model. The results showed that [Bmim]Cl pretreatment resulted in lower activation energy and a high amount of fraction mass conversion at low temperatures. As a result, the results showed that pyrolysis of [Bmim]Cl-pretreated biomass did not require high temperatures, and that it is possible to convert ionic liquid pretreatment biomass into high-quality biofuel and active biochar by controlling the pyrolysis temperature. Graphical abstract
ISSN:1438-4957
1611-8227
DOI:10.1007/s10163-023-01684-x