Title

Noncatalytic Direct Reformation of JP-8 Fuel in Supercritical Water

Abstract

A novel process is developed where hydrogen is generated via direct reformation of liquid hydrocarbon fuel such as diesel and JP-8 fuel in supercritical water. Supercritical water functions as a reforming agent and as a solvating reaction medium. The high enthalpy level of supercritical water and the extraordinary solubility of hydrocarbon fuel components in supercritical water allow the reformation reaction to proceed without a catalyst. Typical temperature and pressure ranges are: 650-750°C and 22-33 MPa. The process feasibility of the supercritical water reformation of JP-8 fuel was studied in a tubular reactor made of Inconel-625 alloy whose dimensions are 2.54-cm ID and 183-cm internal length. The following aspects were in-depth investigated: (a) long-term continuous reactor operability, (b) varying supercriticality of the reactant and product mixtures along the reactor length, (c) coke formation, (d) H2 and CH4 productivity, and (f) effects of fuel components on the process efficiency.

Department(s)

Chemical and Biochemical Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2006 American Chemical Society (ACS), All rights reserved.

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