Project Title:

Lunar Oxygen Production from Ilmenite/Fluid Particle Processing Technology in Space

15.04-7840
Lunar Oxygen Production from Ilmenite/Fluid Particle Processing Technology in Space
Carbotek Inc.
2916 West T.C. Jester, Suite 101
Houston
TX
77018
Gibson
M. A.
NAS9-17605
Amount:   
JSC
NAS9-17288

Abstract:

   A primary objective is to measure extensive fluidized-bed characterizationdata for simulated lunar ilmenite reactor feedstock at simulated lunar gravity conditions.
 These data will be combined with kinetics and solid reactivity studies already begun--a
second major ojective.  This information then will be used to plan the explicit design
of a prototype lunar ilmenite reactor.

Another major objective is to extend the fluid-particle characterization data to
low, controlled gravity conditions characteristic of the space shuttle and space
station for commercial space processing applications.

The early work has shown that 1000 metric tonnes/year of oxygen can be produced using
an 8 ft. O.D. x 6 ft. I.D. x 20 ft. tall refractory-lined, stainless steel reactor.
 The metal shell weight is 7 tons; internal insulation (firebrick) weight is 30 tons;
total 37 tons.  Process conditions are the 1000C, 150 psia and equilibrium H2 conversion.
 Ilmenite conversion is 90%; the reduction appears to follow a shrinking-core, chemical
reaction-
rate-controlled mechanism.  Reduced-gravity fluid bed behavior and internal insulation
designs were identified as areas where additional study could result in higher solids
conversions and/or weight savings.