| Extraction of Carbon Dioxide From Seawater by Ion Exchange Resin. Part 2. Using Strong Base Anion Exchange Resin |
29 Sep 2009 |
22 pages |
| Authors:
Heather D Willauer; Dennis R Hardy; Ejiogu C Ndubizu; Frederick W Williams; M K Lewis; NAVAL RESEARCH LAB WASHINGTON DC
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 | Strong base anion exchange resins were studied to determine if they could be used as a feasible and practical method for sequestering carbon dioxide from seawater for use as a carbon feedstock in a sea-based fuel production process. Static and dynamic flow experiments to determine the resin bicarbonate and chloride selectivity and the effect of ionic strength on bicarbonate selectivity and capacity are reported. These data are used to determine ... |
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| Influence of Gas Feed Composition and Pressure on the Catalytic Conversion of CO2 to Hydrocarbons Using a Traditional Cobalt-Based Fischer-Tropsch Catalyst |
25-Jun-2009 |
7 pages |
| Authors:
Heather D Willauer; Dennis R Hardy; Frederick W Williams; Robert W Dorner; Burton H Davis; NAVY TECHNOLOGY CENTER FOR SAFETY AND SURVIVABILITY WASHINGTON DC
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| The hydrogenation of CO2 using a traditional Fischer-Tropsch Co-Pt/Al2O3 catalyst for the production of valuable hydrocarbon materials is investigated. The ability to direct product distribution was measured as a function of different feed gas ratios of H2 and CO2 (3:1, 2:1, and 1:1) as well as operating pressures (ranging from 450 to 150 psig). As the feed gas ratio was changed from 3:1 to 2:1 and 1:1, the production distribution ... |
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| Development of a Fuel Lubricity Haze Test (FLHT) for Naval Applications |
16-Mar-2009 |
78 pages |
| Authors:
Dennis R Hardy; NAVY TECHNOLOGY CENTER FOR SAFETY AND SURVIVABILITY WASHINGTON DC
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| Highly processed diesel fuels are now monitored for lubricity by specially developed mechanical tests. Because these mechanical tests are imprecise, difficult to run, expensive, and difficult to relate to actual field conditions, a chemical test for lubricity has been developed. This Fuel Lubricity Haze Test (FLHT) has been miniaturized, and can be run in the laboratory or field. It has been found to be an objective, precise test that is ... |
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| Recovery of [CO2]T from Aqueous Bicarbonate using a Gas Permeable Membrane |
25-Jun-2008 |
16 pages |
| Authors:
Heather D Willauer; Dennis R Hardy; M K Lewis; Ejiogu C Ndubizu; Frederick W Williams; NAVY TECHNOLOGY CENTER FOR SAFETY AND SURVIVABILITY WASHINGTON DC
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| Celgard 2400 gas permeable membranes were in contact with a model sodium bicarbonate solution on a closed system at elevated water pressures. When gaseous carbon dioxide was removed from the water by diffusion through the membrane, the bicarbonate disproportionated to carbon dioxide and carbonate. The carbon dioxide permeance rate and effect of ionic strength on disproportionation is reported. |
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