| Title | Comparison of bio-oils derived from crop digestate treated through conventional and microwave pyrolysis as an alternative route for further waste valorization |
|---|---|
| ID_Doc | 23338 |
| Authors | Perez, ND; Lindfors, C; van den Broek, LAM; van der Putten, J; Meredith, W; Robinson, J |
| Title | Comparison of bio-oils derived from crop digestate treated through conventional and microwave pyrolysis as an alternative route for further waste valorization |
| Year | 2024 |
| Published | Biomass Conversion And Biorefinery, 14, 14 |
| Abstract | A total of 120,000 tonnes per year of crop waste from contaminated land has been used as a feedstock for anaerobic digestion (AD). This produces only around 20% of biogas from the total crop and results in a large amount of digestate with heavy metal content. This crop digestate was analyzed across a calendar year to identify the variation in composition, and any potential high-value components that could be targeted for recovery. The chemical characterization revealed that approximately 65% of this residual waste is lignocellulosic material (20% hemicellulose, 24% cellulose, 24% lignin) and about 10% is ash, with no observable difference across the seasons. Three different pyrolysis technologies were studied with the same crop digestate as alternative route to maximize the value of this solid residue by transforming this lignocellulosic material into further bio-based products. Slow pyrolysis at operating temperatures between 355 and 530 degrees C resulted in bio-oil yields of 35-46% wt, fast pyrolysis at 460-560 degrees C produced 36-40% wt, and microwave pyrolysis using a power input of 500 and 700 W generated 8-27% wt from the digestate. Chemical compounds found in these bio-oils were categorized into seven chemical groups: acids, aldehydes and ketones, alcohols, furans, sugars, phenolics, and others. This analytical study opens other scenarios to explore the upgrading of these pyrolytic bio-oils for green product generation from the same waste. |
| https://link.springer.com/content/pdf/10.1007/s13399-022-03712-6.pdf |
Similar Articles
| ID | Score | Article |
|---|---|---|
12663
|
Paudel, PP; Kafle, S; Park, S; Kim, SJ; Cho, L; Kim, DH Advancements in sustainable thermochemical conversion of agricultural crop residues: A systematic review of technical progress, applications, perspectives, and challenges(2024) | |
| 5276
|
Kordoghli, S; Fassatoui, E; Jeguirim, M; Zorpas, AA; Khiari, B Experimental and feasibility study of bio-waste valorization through pyrolysis for energy and materials production in the concept of circular economy(2024) | |
| 9925
|
Tayibi, S; Monlau, F; Bargaz, A; Jimenez, R; Barakat, A Synergy of anaerobic digestion and pyrolysis processes for sustainable waste management: A critical review and future perspectives(2021) | |
| 12555
|
Ferrari, V; Nazari, MT; da Silva, NF; Crestani, L; Raymundo, LM; Dotto, GL; Piccin, JS; Oliveira, LFS; Bernardes, AM Pyrolysis: a promising technology for agricultural waste conversion into value-added products(2024) | |
| 13132
|
Ochando-Pulido, JM; Vuppala, S; García-López, AI; Martínez-Férez, A A focus on anaerobic digestion and co-digestion strategies for energy recovery and digestate valorization from olive-oil mill solid and liquid by-products(2024) | |
| 13876
|
Padrino, B; Lara-Serrano, M; Morales-delaRosa, S; Campos-Martín, JM; Fierro, JLG; Martínez, F; Melero, JA; Puyol, D Resource Recovery Potential From Lignocellulosic Feedstock Upon Lysis With Ionic Liquids(2018) | |
| 29918
|
Vasilakis, G; Rigos, EM; Giannakis, N; Diamantopoulou, P; Papanikolaou, S Spent Mushroom Substrate Hydrolysis and Utilization as Potential Alternative Feedstock for Anaerobic Co-Digestion(2023)Microorganisms, 11.0, 2 | |
| 12398
|
Archana, K; Visckram, AS; Kumar, PS; Manikandan, S; Saravanan, A; Natrayan, L A review on recent technological breakthroughs in anaerobic digestion of organic biowaste for biogas generation: Challenges towards sustainable development goals(2024) | |
| 27259
|
Azevedo, A; Gominho, J; Duarte, E Performance of Anaerobic Co-digestion of Pig Slurry with Pineapple (Ananas comosus) Bio-waste Residues(2021)Waste And Biomass Valorization, 12.0, 1 | |
| 29454
|
Wang, Z; Li, J; Yan, BB; Zhou, SQ; Zhu, XC; Cheng, ZJ; Chen, GY Thermochemical processing of digestate derived from anaerobic digestion of lignocellulosic biomass: A review(2024) |