In the scope of this thesis, the catalytic cracking of vegetable oils at low temperatures (420-520 C) in a fluid-catalytic-cracking pilot plant at Vienna University of Technolo-gy is examined. The feedstocks (canola oil, soybean oil and palm oil) are processed and temperature-determined product compositions are analyzed. Experiments show that the light cycle oil (LCO) yield increases at low temperatures and the gasoline and gas yield decline. Furthermore the three vegetable oils behave similarly in relation to the production of gasoline, gas and LCO. Also the product gas composition is nearly identical for the three oils. A distinction between the oils can be made regarding the composition of the gasoline. A further part of this thesis involves the long-term stability of liquid-organic samples, which are used to analyze the boiling curves by chromatography. For this purpose, a long-term study is performed for 70 days. In this study the mass loss of the volatile components is documented with gravimetric and chromatographic measurements. The measurements show that weight loss can be detected by gravimetric and chroma-tographic methods. Sample storage at low temperatures results in a storage duration of 20 days without any significant impact on chromatographic measurements. After 20 days of storage the chromatographic measurements are significantly distorted.