@article{natelson_wang_roberts_zering_2015, title={Technoeconomic analysis of jet fuel production from hydrolysis, decarboxylation, and reforming of camelina oil}, volume={75}, journal={Biomass and Bioenergy}, author={Natelson, R. H. and Wang, W. C. and Roberts, W. L. and Zering, K. D.}, year={2015}, pages={23–34} } @article{yin_natelson_campos_kolar_roberts_2013, title={Aromatization of n-octane over Pd/C catalysts}, volume={103}, ISSN={["1873-7153"]}, DOI={10.1016/j.fuel.2012.06.095}, abstractNote={Abstract Gas-phase aromatization of n-octane was investigated using Pd/C catalyst. The objectives were to: (1) determine the effects of temperature (400–600 °C), weight hourly space velocity (WHSV) (0.8–∞), and hydrogen to hydrocarbon molar ratio (MR) (0–6) on conversion, selectivity, and yield (2) compare the activity of Pd/C with Pt/C and Pt/KL catalysts and (3) test the suitability of Pd/C for aromatization of different alkanes including n-hexane, n-heptane, and n-octane. Pd/C exhibited the best aromatization performance, including 54.4% conversion and 31.5% aromatics yield at 500 °C, WHSV = 2 h−1, and a MR of 2. The Pd/C catalyst had higher selectivity towards the preferred aromatics including ethylbenzene and xylenes, whereas Pt/KL had higher selectivity towards benzene and toluene. The results were somewhat consistent with adsorbed n-octane cyclization proceeding mainly through the six-membered ring closure mechanism. In addition, Pd/C was also capable of catalyzing aromatization of n-hexane and n-heptane.}, journal={FUEL}, author={Yin, Mengchen and Natelson, Robert H. and Campos, Andrew A. and Kolar, Praveen and Roberts, William L.}, year={2013}, month={Jan}, pages={408–413} } @article{wang_natelson_stikeleather_roberts_2013, title={Product sampling during transient continuous countercurrent hydrolysis of canola oil and development of a kinetic model}, volume={58}, ISSN={["1873-4375"]}, DOI={10.1016/j.compchemeng.2013.06.003}, abstractNote={A chemical kinetic model has been developed for the transient stage of the continuous countercurrent hydrolysis of triglycerides to free fatty acids and glycerol. Departure functions and group contribution methods were applied to determine the equilibrium constants of the four reversible reactions in the kinetic model. Continuous countercurrent hydrolysis of canola oil in subcritical water was conducted experimentally in a lab-scale reactor over a range of temperatures and the concentrations of all neutral components were quantified. Several of the rate constants in the model were obtained by modeling this experimental data, with the remaining determined from calculated equilibrium constants. Some reactions not included in the present, or previous, hydrolysis modeling efforts were identified from glycerolysis kinetic studies and may explain the slight discrepancy between model and experiment. The rate constants determined in this paper indicate that diglycerides in the feedstock accelerate the transition from “emulsive hydrolysis” to “rapid hydrolysis”.}, journal={COMPUTERS & CHEMICAL ENGINEERING}, author={Wang, Wei-Cheng and Natelson, Robert H. and Stikeleather, Larry F. and Roberts, William L.}, year={2013}, month={Nov}, pages={144–155} }