Compact, In-Line Sensor for Direct Measurement of Sulfur in Liquid JP-8

Fuel cell technology has progressed to the point where fuel reforming and desulfurization has become the limiting factor. The platinum catalysts used in fuel cells are poisoned by sulfur compounds in the fuel. The proposed effort will develop a compact, rugged, in-line sensor for measuring total sulfur in JP-8 before it enters the desulfurization system. This sensor will allow better management of the desulfurization equipment and minimize its maintenance requirements (e.g., replacement of consumables). The proposed sensor is small, lightweight, and allows direct measurement of sulfur in the liquid fuel. The sensor is non-destructive and has low power requirements, making continuous, in-line monitoring possible. The technical approach will be proven out in Phase I, and a transition-ready technology demonstrator will be delivered at the end of Phase II.