L07-prod3 - Hydrogen Production 1 8/19/2005 LECTURE LECTURE...

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Unformatted text preview: Hydrogen Production 1 8/19/2005 LECTURE LECTURE LECTURE LECTURE # # # # 7 TOPIC TOPIC TOPIC TOPIC: H y d r o g e n P r o d u c t i o n Hydrogen Production 2 8/19/2005 Sea Water Electrolysis Most abundant source of water hence ideal medium Disadvantages s High NaCl content s Equilibrium potential of Cl 2 is greater than O 2 s Toxic Cl 2 gas s Formation of insoluble precipitate (like calcium carbonate and manganese carbonate) resulting in lower efficiencies and need for periodic cleaning Hydrogen Production 3 8/19/2005 Sea Water Electrolysis Some of the experiment to prevent the release b Using manganese dioxide as the electro catalyst s 99% pure oxygen production s Deposited manganese oxide peels off causing gradual decrease in O 2 content Hydrogen Production 4 8/19/2005 Sea Water Electrolysis Some of the experiment to prevent the release b Using small amount of molybdenum and tungsten to manganese dioxide as the electro catalyst s 99.9% pure oxygen production s Deposited manganese oxide peels off causing gradual decrease in O 2 content Hydrogen Production 5 8/19/2005 Solar Powered Electrolysis s Renewable energy source s Solar radiation heat or electricity used to power an electrolyzer s Eliminates fossil fuel s Environment friendly Hydrogen Production 6 8/19/2005 Solar Powered Electrolysis Methods of generating electricity from solar radiation s Photovoltaic (PV) s Central Receiver System s Dish / Stirling System s Ammonia based Power / Cooling System Hydrogen Production...
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This note was uploaded on 09/05/2011 for the course LECTURE 101 taught by Professor Staff during the Fall '09 term at University of Florida.

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L07-prod3 - Hydrogen Production 1 8/19/2005 LECTURE LECTURE...

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