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Abstract
Py-GC/MS combines pyrolysis with analytical tools of gas chromatography (GC) and mass spectrometry (MS) and is a quick and highly effective method to analyse the volatiles generated from small amounts of feeds. The review focuses on using zeolites and other catalysts in the fast co-pyrolysis of various feedstocks, including biomass wastes (plants and animals) and municipal waste materials, to improve the yield of specific volatile products. The utilisation of zeolite catalysts, including HZSM-5 and nMFI, results in a synergistic reduction of oxygen and an increase in the hydrocarbon content of pyrolysis products. The literature works also indicate HZSM-5 produced the most bio-oil and had the least coke deposition among the zeolites tested. Other catalysts, such as metals and metal oxides, and feedstocks that act as catalysts (self-catalysis), such as red mud and oil shale, are also discussed in the review. Combining catalysts, such as metal oxides and HZSM-5, further improves the yields of aromatics during co-pyrolysis. The review highlights the need for further research on the kinetics of the processes, optimisation of feed-to-catalyst ratios, and stability of catalysts and products.
Original language | English |
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Article number | 2313 |
Number of pages | 30 |
Journal | Molecules |
Volume | 28 |
Issue number | 5 |
DOIs | |
Publication status | Published - Mar 2023 |
Keywords
- Aromatics
- Bio-oil
- Catalyst
- Co-pyrolysis
- Ms
- Zeolite
- py-GC
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- 1 Finished
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EX-QNRF-NPRPS-18: Pyrolysis of Qatar Waste Materials to Produce Agricultural/Landscaping Biochars
Al-Ansari, T. A. H. A. (Principal Investigator), Mckay, G. (Lead Principal Investigator) & Mariyam, S. (Graduate Student)
12/05/19 → 21/06/23
Project: Applied Research