"The noncatalytic direct reformation of jet fuel was studied in a supercritical water medium using a specially designed 400-mL Haynes® 230 alloy tubular reactor. The experiments were conducted at 1042±5 K, 240.9±0.1 bar, and at water flow rates of 7.5, 15, 30 g/min with varying water-to-fuel feed ratios of 7.5, 15 and 30. The principal reactions are direct reformation of jet fuel into hydrogen and carbon oxides and pyrolysis of jet fuel into lighter hydrocarbons and coke. The effluent gas contained H₂, CO, CO₂ and CH₄, with smaller concentrations of C₂H₄ and C₂H₆. This thesis discusses the effects of the water-to-fuel ratio on the hydrogen and hydrocarbon percentage in the effluent gas. These percentages reflect the activity of the reformation and pyrolysis reactions. Kinetic rate expressions incorporating the feed water-to-fuel ratios were also developed by conducting further kinetic experiments at controlled process conditions. The research findings are significant in enhancing the process design in maximizing the hydrogen yield from the process and determining the optimal feed conditions as well as the recycle ratio of water to the reactor. The information obtained from this study is novel not only for this specific process utilizing the supercritical fluid technology, but also for the noncatalytic direct reformation of jet fuel"--Abstract, page iii.
Henthorn, Kimberly H.
Sheffield, John W.
Chemical and Biochemical Engineering
M.S. in Chemical Engineering
United States. Department of the Army
Missouri University of Science and Technology
ix, 47 pages
© 2009 Satya Rama Krishna Prasad Putta, All rights reserved.
Thesis - Restricted Access
Hydrogen as fuel
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Putta, Satya, "The effects of water to fuel ratio on the kinetics of supercritical water reformation of jet fuel" (2009). Masters Theses. 4504.
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