Fixed-Bed Pyrolysis of Cottonseed Cake: Product Yields and Compositions

Abstract

Fired-bed pyrolysis erperiments haue been conducted on a sample of cottonseed cake to determine the possibiliry of being a potential source of renewable fuek and chemical feedstocks. The effects of hearing rate, pyrolysis atmosphere, and pyrolysis temperature on the pyrolysis product yields and chemical compositions haue been inuestigated. The maximum oil yield of 27% was obtained in N2 atmosphere at pyrolysis temperature of 550°C and heating rate of PC min-'. The chemical characterization has shown that the oil obtained from cottonseed cake was quite similar to the crude oil and shale oil.

Potential hydrogen and non-condensable gases production from biomass pyrolysis: Insights into the process variables

“…Longer residence times at high temperatures favor the secondary pyrolysis reactions, resulting in higher gaseous products with nitrogen flow rates as CG, as was outlined by Şensöz et al [121]. If the purpose was to produce maximum gaseous products, then secondary reactions, such as thermal cracking, re-polymerization and re-condensation must be kept at a maximum because the CG removes the volatiles from the pyrolysis environment [199]. The residence time of the pyrolysis products is a function of N 2 purge and feedstock rates.…”

Microwave pyrolysis of oil palm fiber (OPF) for hydrogen production: Parametric investigation

“…Pure nitrogen gas has been used as a carrier gas. The main objective of the carrier gas is to remove the volatiles like oxygen from the system [25,32]. As gas formation is improved when the N 2 flow rate is higher [25], N 2 is used as a carrier gas because of targeting the hydrogen gas as a main target of this investigation.…”

Pyrolysis of Rapeseed Cake

“…The solid char may be useful as a fuel or chemical. The gas generated is rich in hydrocarbons and has a sufficiently high calorific value to be used for the total energy requirements of a biomass pyrolysis plant (Çulcuog Ï lu et al, 2000;Karaosmanog Ï lu & Tetik, 1999;Bridgwater & Grassi 1991;Pütün et al, 1996;Pütün et al, 1997;Fraga et al, 1991;Beş ler et al, 1992).…”