Browse Publications Technical Papers 2000-01-2237
2000-07-10

Sorbent Bed Acquisition and Compression of Carbon Dioxide from the Mars Atmosphere 2000-01-2237

Human exploration of Mars as well as unmanned sample return missions from Mars can benefit greatly from the use of propellants produced from the resources available from the atmosphere of Mars. The first major step of any in-situ propellant production (ISPP) system is to acquire carbon dioxide (CO2) from the Mars atmosphere and compress it for further chemical processing. One system that performs this step is called a Mars Atmosphere Acquisition and Compression (MAAC) unit. A simple prototype MAAC was developed by JPL as part of the Mars ISPP Precursor (MIP) experiment package for inclusion on the Mars 2001 Surveyor Lander. The MAAC consists of a valved enclosure packed with a sorbent material which selectively adsorbs CO2 from the Mars atmosphere (valves open), desorbs and compresses the acquired CO2 by heating (valves closed) and then delivers the pressurized CO2 to an oxygen generating system where the CO2 is electrolyzed to produce oxygen. This paper presents a description of the MAAC experiment, the several iterations involved in arriving at the MAAC design, and the results of MAAC performance testing.

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