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platinum group | A Wisdom Archive on platinum group | | platinum group A selection of articles related to platinum group | |
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platinum group
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| ARTICLES RELATED TO platinum group | | | | |  platinum group: Encyclopedia II - Hydrogen economy - ExamplesSeveral domestic US automobile manufactures have committed to develop vehicles using hydrogen. (They had previously committed to producing electric vehicles in California, a program now defunct at their behest.) Critics argue this "commitment" is merely a ploy to sidestep current calls for increased efficiency in gasoline and diesel fuel powered vehicles.
Some hospitals have installed combined electrolyzer-storage-fuel cell units for local emergency power. These are advantageous for emergency use due to their low maintenance requirement and ease of location compa ...
See also:Hydrogen economy, Hydrogen economy - The present, Hydrogen economy - The short-term future, Hydrogen economy - Rationale, Hydrogen economy - Production, Hydrogen economy - Fossil fuels, Hydrogen economy - Electrolysis, Hydrogen economy - Thermochemical production, Hydrogen economy - Other methods, Hydrogen economy - Storage, Hydrogen economy - Ammonia storage, Hydrogen economy - Metal hydrides, Hydrogen economy - Synthesized hydrocarbons, Hydrogen economy - Other methods, Hydrogen economy - Transportation, Hydrogen economy - Environmental concerns, Hydrogen economy - Consumption, Hydrogen economy - Chemical feed, Hydrogen economy - Energy source, Hydrogen economy - Problems, Hydrogen economy - Examples Read more here: » Hydrogen economy: Encyclopedia II - Hydrogen economy - Examples |
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| | | | | platinum group: Encyclopedia II - Hydrogen economy - Consumption
Hydrogen economy - Chemical feed.
Hydrogen is used in chemical reactions - the Haber process and hydrocracking - as described in "The present" above.
Hydrogen economy - Energy source.
The underlying premise of a hydrogen economy is that fuel cells will replace internal combustion engines and turbines as the primary way to convert chemical power into motive and electrical power. The reason to expect this changeover is that fuel cells, being electrochemical, can be more efficient than heat engines. Currently, fuel cells are very expensive, but there is ...
See also:Hydrogen economy, Hydrogen economy - The present, Hydrogen economy - The short-term future, Hydrogen economy - Rationale, Hydrogen economy - Production, Hydrogen economy - Fossil fuels, Hydrogen economy - Electrolysis, Hydrogen economy - Thermochemical production, Hydrogen economy - Other methods, Hydrogen economy - Storage, Hydrogen economy - Ammonia storage, Hydrogen economy - Metal hydrides, Hydrogen economy - Synthesized hydrocarbons, Hydrogen economy - Other methods, Hydrogen economy - Transportation, Hydrogen economy - Environmental concerns, Hydrogen economy - Consumption, Hydrogen economy - Chemical feed, Hydrogen economy - Energy source, Hydrogen economy - Problems, Hydrogen economy - Examples Read more here: » Hydrogen economy: Encyclopedia II - Hydrogen economy - Consumption |
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| | | | | platinum group: Encyclopedia II - Hydrogen economy - Production The production and distribution of hydrogen for the purpose of transportation is being tested in limited markets around the world, particularly in Iceland, Germany, California, Japan and Canada. There are several processes which can yield hydrogen via water splitting using various energy sources at different efficiencies and costs. As of 2005, 48% of hydrogen production (for industrial processes) is from natural gas, 30% is from oil, 18% is from coal, and 4% is from electrolysis.
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See also:Hydrogen economy, Hydrogen economy - The present, Hydrogen economy - The short-term future, Hydrogen economy - Rationale, Hydrogen economy - Production, Hydrogen economy - Fossil fuels, Hydrogen economy - Electrolysis, Hydrogen economy - Thermochemical production, Hydrogen economy - Other methods, Hydrogen economy - Storage, Hydrogen economy - Ammonia storage, Hydrogen economy - Metal hydrides, Hydrogen economy - Synthesized hydrocarbons, Hydrogen economy - Other methods, Hydrogen economy - Transportation, Hydrogen economy - Environmental concerns, Hydrogen economy - Consumption, Hydrogen economy - Chemical feed, Hydrogen economy - Energy source, Hydrogen economy - Problems, Hydrogen economy - Examples Read more here: » Hydrogen economy: Encyclopedia II - Hydrogen economy - Production |
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| | | | | platinum group: Encyclopedia II - Hydrogen economy - Transportation Hydrogen seems unlikely to be the cheapest carrier of energy over long distances in the near future. Advances in electrolysis and fuel cell technology have not addressed the underlying cost problem yet.
As of 2005, the cheapest method to move energy around the planet is in uranium by rail, but nuclear power has received negative responses. The next cheapest and currently most widely used is in the form of oil in a pipeline or supertanker, or coal by rail or bulk carrier vessel. Natural gas pipelines and liquified natural gas tankers a ...
See also:Hydrogen economy, Hydrogen economy - The present, Hydrogen economy - The short-term future, Hydrogen economy - Rationale, Hydrogen economy - Production, Hydrogen economy - Fossil fuels, Hydrogen economy - Electrolysis, Hydrogen economy - Thermochemical production, Hydrogen economy - Other methods, Hydrogen economy - Storage, Hydrogen economy - Ammonia storage, Hydrogen economy - Metal hydrides, Hydrogen economy - Synthesized hydrocarbons, Hydrogen economy - Other methods, Hydrogen economy - Transportation, Hydrogen economy - Environmental concerns, Hydrogen economy - Consumption, Hydrogen economy - Chemical feed, Hydrogen economy - Energy source, Hydrogen economy - Problems, Hydrogen economy - Examples Read more here: » Hydrogen economy: Encyclopedia II - Hydrogen economy - Transportation |
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| | | | | platinum group: Encyclopedia II - Hydrogen economy - Environmental concerns 48% of hydrogen gas is created through the natural gas steam reforming/water gas shift reaction method, outlined above. This creates carbon dioxide (CO2), a greenhouse gas, as a byproduct. This is usually released into the atmosphere, although there has also been some research into interning it underground or undersea.
Recently, there have also been some concerns over possible problems related to hydrogen gas leakage. One issue, which may become more important as hydrogen usage becomes more widespread, is permanent hydrogen ...
See also:Hydrogen economy, Hydrogen economy - The present, Hydrogen economy - The short-term future, Hydrogen economy - Rationale, Hydrogen economy - Production, Hydrogen economy - Fossil fuels, Hydrogen economy - Electrolysis, Hydrogen economy - Thermochemical production, Hydrogen economy - Other methods, Hydrogen economy - Storage, Hydrogen economy - Ammonia storage, Hydrogen economy - Metal hydrides, Hydrogen economy - Synthesized hydrocarbons, Hydrogen economy - Other methods, Hydrogen economy - Transportation, Hydrogen economy - Environmental concerns, Hydrogen economy - Consumption, Hydrogen economy - Chemical feed, Hydrogen economy - Energy source, Hydrogen economy - Problems, Hydrogen economy - Examples Read more here: » Hydrogen economy: Encyclopedia II - Hydrogen economy - Environmental concerns |
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