Ozlem Onay

Slow, fast and flash pyrolysis of rapeseed

Pyrolysis experiments have been conducted on a sample of rapeseed to determine particularly the effects of pyrolysis temperature, heating rate, particle size and sweep gas flow rate on the pyrolysis product yields and their chemical compositions. The maximum oil yield of 73% was obtained at the final pyrolysis temperature of 550–600 °C, particle size range of +0.6–1.25 mm, and sweep gas flow rate of 100 cm3min−1 (N2) at flash pyrolysis conditions in tubular transport reactor. Chromatographic and spectroscopic studies on the pyrolytic oil showed that the oil obtained from rapeseed can be used as a renewable fuel and chemical feedstock.

Fixed-bed pyrolysis of safflower seed: influence of pyrolysis parameters on product yields and compositions

Fixed-bed slow pyrolysis experiments have been conducted on a sample of safflower seed to determine particularly the effects of pyrolysis temperature, heating rate, particle size and sweep gas flow rate on the pyrolysis product yields and their chemical compositions. The maximum oil yield of 44% was obtained at the final pyrolysis temperature of 500°C, particle size range of +0.425–1.25 mm, with heating rate of 5°C min−1 and sweep gas (N2) flow rate of 100 cm3 min−1 in a fixed-bed lab-scale reactor. Chromatographic and spectroscopic studies on the pyrolytic oil showed that the oil obtained from safflower seed can be used as a renewable fuel and chemical feedstock with a calorific value of 41.0 MJ/kg and empirical formula of CH1.92O0.11N0.02.

Fixed-bed pyrolysis of rapeseed (Brassica napus L.)

Abstract Fixed-bed slow and fast pyrolysis experiments have been conducted on a sample of rapeseed. The experiments were performed in two different pyrolysis reactors, namely a fixed-bed Heinze and a well-swept fixed-bed tubular retort to investigate the effects of heating rate, pyrolysis temperature, particle size, sweep gas velocity on the pyrolysis product yields and chemical compositions. The maximum oil yield of 51.7% was obtained in the Heinze reactor 550°C, with a particle size range of +0.6– 1.8 mm (sweep gas 100 cm 3 min −1 N 2 ) at a heating rate of 30° C min −1 . In the well-swept fixed-bed reactor, the maximum oil yield of 68% was obtained at a heating rate of 300° C min −1 . Chromatographic and spectroscopic studies on the pyrolytic oil showed that the oil obtained from rapeseed could be use as a renewable fuels and chemical feedstock.

Fast pyrolysis of rape seed in a well-swept fixed-bed reactor

Abstract Fixed-bed fast pyrolysis experiments have been conducted on a sample of rape seed to determine particularly the effects of pyrolysis temperature, particle size, heating rate and sweep gas flow rate on the pyrolysis yields and their chemical compositions. The maximum oil yield of 68% was obtained at the final pyrolysis temperature of 550°C, particle size range of 0.6–0.85 mm, with a heating rate of 300°C min−1 and a sweep gas flow rate of 100 cm3 min−1 (N2) in a well-swept fixed-bed reactor. Chromatographic and spectroscopic studies on the pyrolytic oil showed that the oil obtained from rape seed can be used as a renewable fuel and chemical feedstock.

Production of Bio-Oil from Biomass: Slow Pyrolysis of Rapeseed (Brassica napus L.) in a Fixed-Bed Reactor

Rapeseed (Brassica napus L.) pyrolysis experiments were performed in a fixed-bed reactor. The effects of heating rate, final pyrolysis temperature, particle size, and pyrolysis atmosphere on pyrolysis product yields and chemical compositions have been investigated. The maximum oil yield of 51.7% was obtained at a pyrolysis temperature of 550°C with particle sizes in the range of +0.6 to 1.8 mm in a sweeping gas atmosphere (100 cm3 min−1 N2) and a heating rate of 30°C min−1. The chemical characterization has shown that the oil obtained from rapeseed may be potentially valuable as fuels and chemical feedstocks.

Pyrolysis of Walnut Shell in a Well-Swept Fixed-Bed Reactor

Fixed-bed fast pyrolysis experiments have been conducted on a sample of walnut shell to particularly determine the effects of pyrolysis temperature, heating rate, particle size, and sweep gas flow rate on the pyrolysis product yields and their chemical compositions. The maximum oil yield of 31.2% was obtained at the final pyrolysis temperature of 500°C, particle size range of +0.6–1.8 mm, with heating rate of 300°C min−1 and sweep gas flow rate of 100 cm3 min−1 (N2) in a well-swept fixed-bed reactor. Chromatographic and spectroscopic studies on the pyrolytic oil showed that the oil obtained from walnut shell can be used as a renewable fuel and chemical feedstock.

Pyrolysis of walnut shell in a fixed-bed reactor

Publisher Summary This chapter deals with the pyrolysis of Walnut shell in a fixed-bed reactor. In this chapter, the fixed bed slow pyrolysis experiments have been conducted on a sample of walnut shell. The experiments are performed in a static Heinze retort to investigate, particularly, the influence of final pyrolysis temperature, the heating rate, and the particle size range on the pyrolysis product yields. Moreover, the pyrolysis oil has been characterized at the condition of the maximum liquid product yield. In the fixed bed retort, the maximum oil yield of 20% is obtained at 500°C with particle size range of 0.224–1.24 mm and heating rate of 40°C minl. The yield of pyrolysis conversion is 70.8% at the experimental conditions. The chemical characterization has shown that the oil obtained from walnut shell can be used as a renewable fuel and a chemical feedstock. Finally, the chemical characterization has shown that the oil obtained from walnut shell can be used as a renewable fuel and a chemical feedstock.