Lunar Sulfur Capture System

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX08CC47P
Agency Tracking Number: 074176
Amount: $99,962.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: X5.01
Solicitation Number: N/A
Small Business Information
Pioneer Astronautics
11111 W. 8th Avenue, Unit A, Lakewood, CO, 80215-5516
DUNS: 120561456
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Mark Berggren
 Principal Investigator
 (303) 980-0231
 mberggren@pioneerastro.com
Business Contact
 Robert Zubrin
Title: Business Official
Phone: (303) 980-0890
Email: zubrin@aol.com
Research Institution
N/A
Abstract
The Lunar Sulfur Capture System (LSCS) is an innovative method to recover sulfur compounds from lunar soil using sorbents derived primarily from in-situ resources. Most of the sulfur released from lunar soil during higher-temperature thermal treatment is trapped by the LSCS at lower temperatures on iron oxides present in lunar soil. As needed, small amounts of polishing sorbents are used to reduce equilibrium sulfur concentrations to the low ppm level. After sorbents become saturated, sulfur compounds are desorbed and converted to useful sulfur products. Sulfur is present in concentrations of about 0.1 percent in lunar soils and can be recovered by the LSCS as a useful product from in-situ resource utilization (ISRU). The LSCS can capture and recover sulfur from lunar soil as a primary product during thermal desorption of volatile compounds or during thermal reduction ISRU processes used for oxygen production. Removal of sulfur compounds is required during ISRU to prevent electrolyzer damage, catalyst poisoning, and equipment corrosion. The LSCS is applicable to thermal ISRU reduction processes in which sulfur is released in forms such as hydrogen sulfide (H2S), carbonyl sulfide (COS), or carbon disulfide (CS2).

* information listed above is at the time of submission.

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