Influence of aging on the rheological behavior and characteristics of bio-oil produced from olive pomace via slow pyrolysis

Ayyash, Ahmed; Apaydın-Varol, Esin; Kılıç, Murat; Özsin, Gamzenur

doi:10.1007/s13399-022-03096-7

Cited by 4 publications

(1 citation statement)

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“…Oxygenated compounds and water together cause some disadvantages such as high acidity, non-volatility, corrosiveness, and aging during storage. During storage, bio-oil demonstrates intense instability and a tendency to re-polymerize in response to aging, which is responsible for the disadvantages in fuel characteristics [1,4]. Removing water can increase viscosity and stability as well as reduce acidity, but it is a costly and sophisticated procedure.…”

Section: Introductionmentioning

confidence: 99%

Non-Catalytic and Catalytic Conversion of Fruit Waste to Synthetic Liquid Fuel via Pyrolysis

Pehlivan

2023

Processes

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Plum stone stands out as an alternative biomass source in terms of obtaining fuel and chemicals with or without catalysts under different conditions. Under variable heating rates (10, 50, and 100 °C min−1) and pyrolysis temperatures (400, 450, 500, 550, and 600 °C), plum stone was pyrolyzed at a constant rate in a constant sweep gas flow (100 cm3 min−1) in a tubular fixed-bed reactor. According to the results, an oil yield reaching a maximum of 45% was obtained at a heating rate of 100 °C min−1 and pyrolysis temperature of 550 °C in the non-catalytic procedure. The catalytic pyrolysis was carried out with two selected commercial catalysts, namely ZSM-5 and PURMOL-CTX and clinoptilolite (natural zeolite, NZ) under optimum conditions with a catalyst ratio of 10% of the raw material. With the addition of catalyst, the quantity and quality of bio-oil increased, including calorific capacity, the removal of oxygenated groups, and hydrocarbon distribution. In the presence of catalysts, an increase was observed in terms of desirable products such as phenol, alkene, and alkane, and a decrease in terms of undesirable products such as acids. Considering and evaluating all the results, the use of zeolite materials as catalysts in pyrolysis is a recommended option for obtaining enhanced chemicals and fuels.

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Section: Introductionmentioning

confidence: 99%