Journal
JOURNAL OF THE ENERGY INSTITUTE
Volume 98, Issue -, Pages 172-178Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.joei.2021.06.006
Keywords
Orange peel biomass; Catalysts pyrolysis; Microwave heating; Bio-oil; Hydrocarbon compounds
Categories
Funding
- Special Scientific Research Project of Shaanxi Education Department [19JK0904]
- Science Research Foundation of Xijing University [XJ18B05]
- Youth Innovation Team of Shaanxi Universities
Ask authors/readers for more resources
The study demonstrated that the use of microwave power and catalysts (ZSM-5, KOH, and ZSM-5-KOH mixture) in microwave-assisted catalytic pyrolysis of orange peel can improve the pyrolysis efficiency and bio-oil yield. Through techniques like GC-MS, FT-IR, H-1 NMR, and elemental analysis, the chemical components and functional groups in the pyrolytic bio-oils can be identified.
In the present study, bio-oil has been produced from microwave-assisted catalytic pyrolysis of orange peel (OP). The effects of microwave power or heating temperature (MWP) and ZSM-5, potassium hydroxide (KOH) and mixing of ZSM-5-KOH as a catalyst at different ratios have been examined. Both MWP and the catalyst improved the heating and increased the maximum temperatures of pyrolysis process. Maximum bio-oil yield for non catalytic pyrolysis was (25.7 wt%) and with ZSM-5-KOH mixture catalyst (39.6 wt%) was obtained at 600 W respectively. The higher gas yield might be attributed to that catalytic pyrolysis did the secondary cracking of pyrolytic volatiles and promoted the larger small molecules. The chemical components and functional groups present in the pyrolytic bio-oils are identified by GC-MS, FT-IR, H-1 NMR and elemental analysis techniques. Phenol observed very less percentage with higher acidic and nitrogen compounds in the case of non-catalytic pyrolysis bio-oil, whereas catalytic pyrolysis bio-oil showed a higher percentage of phenol. The aromatic protons 26% (region from 6.0 to 8.5 ppm) was found higher amount for ZSm-5 catalytic bio-oil, which is due to the higher aromatics phenolic monomer compounds. The higher amount of oxygen present in raw biomass reduced significantly when used catalyst due to the oxygen reacts with carbon and produce (CO and CO2) and water.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available