1. Why hydrogen?
2. What is hydrogen?
3. Why is it important to shift from oil to hydrogen
with wartime speed?
4. What about the other alternative fuels?
5. Isn't hydrogen especially dangerous?
6. What about the Hindenburg?
7. What about the hydrogen bomb?
8. Where does hydrogen come from?
9. Can any engine be modified to use hydrogen fuel?
10. Where can I get my car modified to use hydrogen?
11. What about exhaust emissions?
12. What is the cost of hydrogen compared to gasoline?
13. How do you store hydrogen?
14. Why is hydrogen referred to as a "universal
fuel"?
15. How do the oil companies view hydrogen?
16. What does the term "hydrogen economy"
mean?
17. What does the Bush Administration think of hydrogen?
18. How long will it take to shift from oil to hydrogen?
19. What are the major obstacles to implementation
of a hydrogen energy system?
20. What is the passage of the Fair Accounting Act
by the U.S. Congress so important?
21. How can I learn more about hydrogen energy?
22. What can I do to help?
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Why hydrogen?
Hydrogen is the only energy option that can permanently displace oil and other fossil and nuclear fuels on a worldwide basis. Moreover, hydrogen is the only zero-emission fuel and it is the only energy option that can make the U.S. energy independent and essentially pollution-free.
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What is hydrogen?
-
Why is it important to shift from oil to hydrogen with wartime speed?
-
What about the other alternative fuels?
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Isn't hydrogen especially dangerous?
No. On the contrary, because hydrogen is the lightest element in the universe, it is much safer than gasoline or any other hydrocarbon fuel in the event of a leak or accident involving the fuel storage and delivery system. Hydrogen rises in the atmosphere at approximately 20 meters per second. It escapes into the atmosphere without the localized fume concentration risks that gasoline or natural gas pose.
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What about the Hindenburg?
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What about the hydrogen bomb?
The hydrogen bomb involves a nuclear reaction, whereas the process of electrolyzing water involves a simple transfer of electrons, which also occurs when one makes a cup of coffee or metabolizes the food they eat. The difference being that the hydrogen bomb involves metal such as uranium as a catalyst.
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Where does hydrogen come from?
-
Can any engine be modified to use hydrogen fuel?
-
Where can I get my car modified to use hydrogen?
-
What about exhaust emissions?
-
What is the cost of hydrogen compared to gasoline?
-
How do you store hydrogen?
-
Why is hydrogen referred to as a "universal fuel?"
-
How do the oil companies view hydrogen?
-
What does the term "hydrogen economy" mean?
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What did the former Bush Administration think of hydrogen?
Freedom Car Program To Accelerate Stationary Fuel Cell Development
North American Stationary Fuel Cell Shipment Forecast sees government spending will accelerate the stationary fuel cell market to achieve significant growth through 2005. Source: Business Wire Jan 15, 2002]
NATICK, Mass.--(BUSINESS WIRE)--Jan. 15, 2002-- On January 8 the Secretary of Energy, Spencer Abraham, announced that $1.5 billion in U.S. Government subsidies will be reallocated to further develop fuel cell technologies for automotive applications. The program, called Freedom CAR (Cooperative Automotive Research), was developed by DaimlerChrysler Corporation (NYSE:DCX), Ford Motor Company (NYSE:F), General Motors Corporation (NYSE:GM), the U.S. Department of Energy and the U.S. Council for Automotive Research. Freedom CAR will replace a $1.5 billion, eight-year project aimed at developing high mileage per gallon engine powered vehicles.
What does this $1.5 billion in government funding mean to the stationary fuel cell marketplace? For the fuel cell companies pursuing automotive applications such as Ballard (NasdaqNM:BLDP) and United Technologies Fuel Cells (NYSE:UTX), this will probably result in considerable government subsidized R&D funding. For the rest of the fuel cell world, the answer is not as simple.
For the automotive fuel cell market to directly impact the stationary fuel cell market, fuel cell vehicles must achieve commercial success. A number of requirements are necessary for these vehicles to effectively commercialize:
- The vehicle must have lower emissions than an internal combustion engine
- Its driving performance must be at least equal to that of an internal combustion engine
- It must provide profits for automotive manufacturers and fuel cell companies
- It must provide profits for energy companies by means of its fuel supply
To meet these requirements, automotive fuel cells must overcome a number of technical barriers. Most important is the need to further develop hydrogen-reforming technologies, which are used to convert hydrogen rich fuels (gasoline, natural gas, methanol, etc.) to pure hydrogen. Without this technology, a hydrogen infrastructure will need to be constructed at a very high cost. There are also significant size, weight, and noise requirements placed on automotive fuel cells.
According to VDC analyst Nathan Andrews, "Once these requirements are met and fuel cell vehicles commercialize, the increases in fuel cell production will help to significantly drop prices. The research to meet these requirements will also assist in the development of stationary fuel cell systems." VDC anticipates that this government spending will accelerate the stationary fuel cell market to achieve significant growth through 2005. Beyond 2005 the possibilities for both stationary and automotive fuel cells are tremendous. The Freedom CAR program will go a long way in assisting fuel cell development, but for these markets to reach their true potentials, industry participants will need to take matters into their own hands.
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How long will it take to shift from oil to hydrogen?
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What are the major obstacles to implementation of a hydrogen energy system?
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Why is the passage of the Fair Accounting Act by the U.S. Congress so important?
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How can I learn more about hydrogen energy?
Refer to the information on this website and also try searching the World Wide Web.
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What can I do to help?
HYDROGEN'S ROLE IN
ENERGY SECURITY.
In every century, America has depended on a single dominant source
of energy for transportation. But only in the last century has
this become a threat to national security. Until the age of oil,
America could produce all the energy it needed from domestic sources.
Now, with demand for oil far outstripping domestic supply, the
nation is ever more dependent on foreign oil. With this dependence
comes a great threat to the nations security, all because
of our dependence on a single source of energy.
Hydrogen is the pathway out of energy dependency. It can be made
from any number of energy sourcescoal, oil, natural gas,
nuclear, hydroelectric and all of the emerging renewables. So
for the first time we can depend on a dominant form of energy
without depending on a single source. And its a form of
energy our children can live with, because it is as clean as energy
gets.
Fossil Fuel Based Hydrogen Production
Water Based Hydrogen Production
Other
Methods of Hydrogen Generation
Fossil Fuel Based Hydrogen Production
A closer look at the chemical formula for any fossil fuel reveals
that hydrogen is present in all of the formulas. The trick is
to remove the hydrogen safely, efficiently and without any of
the other elements present in the original compound. Hydrogen
has been produced from coal, gasoline, methanol, natural gas and
any other fossil fuel currently available. Some fossil fuels have
a high hydrogen to oxygen ratio making them better candidates
for the reforming process. The more hydrogen present and the fewer
extraneous compounds make the reforming process simpler and more
efficient. The fossil fuel that has the best hydrogen to carbon
ratio is natural gas or methane(CH4).
Steam
Reforming of Natural Gas
Hydrogen production from natural gas commonly employs a process
known as steam reforming. Steam reforming of natural gas involves
two steps. The initial phase involves rendering the natural gas
into hydrogen, carbon dioxide and carbon monoxide. This breakdown
of the natural gas is accomplished by exposing the natural gas
to high temperature steam. The second phase of steam reforming
consists of creating additional hydrogen and carbon dioxide by
utilizing the carbon monoxide created in the first phase. The
carbon monoxide is treated with high temperature steam and the
resulting hydrogen and carbon dioxide is sequestered and stored
in tanks. Most of the hydrogen utilized by the chemical and petroleum
industries is generated with steam reforming. Steam reforming
reaches efficiencies of 70% - 90%. The reformer component on a
complete fuel cell system is usually a smaller variation of the
process described above. Component reformers operate under varying
operating conditions and the chemical path that the hydrogen generation
follows will vary from manufacturer to manufacturer, but the resulting
hydrogen reformate is essentially the same.
Water Based Hydrogen Production
Electrolysis
Electrolysis is the technical name for using electricity to split
water into its constituent elements, hydrogen and oxygen. The
splitting of water is accomplished by passing an electric current
through water. The electricity enters the water at the cathode,
a negatively charged terminal, passes through the water and exists
via the anode, the positively charged terminal. The hydrogen is
collected at the cathode and the oxygen is collected at the anode.
Electrolysis produces very pure hydrogen for use in the electronics,
pharmaceutical and food industries. Relative to steam reforming,
electrolysis is very expensive. The electrical inputs required
to split the water into hydrogen and oxygen account for about
80% of the cost of hydrogen generation. Potentially, electrolysis,
when coupled with a renewable energy source, can provide a completely
clean and renewable source of energy. In other circumstances,
electrolysis can couple with hydroelectric or off-peak electricity
to reduce the cost of electrolysis.
Photoelectrolysis
Photoelectrolysis, known as the hydrogen holy grail in some circles, is the direct conversion of sunlight into electricity. Photovoltaics, semiconductors and an electrolyzer are combined to create a device that generates hydrogen. The photoelectrolyzer is placed in water and when exposed to sunlight begins to generate hydrogen. The photovoltaics and the semiconductor combine to generate enough electricity from the sunlight to power the electrolyzer. The hydrogen is then collected and stored. Much of the research in this field takes place in Golden, Colorado at the National Renewable Energy Laboratory.Photobiological
Photobiological production of hydrogen involves using sunlight, a biological component, catalysts and an engineered system. Specific organisms, algae and bacteria, produce hydrogen as a byproduct of their metabolic processes. These organisms generally live in water and therefore are biologically splitting the water into its component elements. Currently, this technology is still in the research and development stage and the theoretical sunlight conversion efficiencies have been estimated up to 24%. Over 400 strains of primitive plants capable of producing hydrogen have been identified, with 25 impressively achieving carbon monoxide to hydrogen conversion efficiencies of 100%.In one example, researchers have discovered that the algae, Chlamydomonas reinhardtii, possesses an enzyme called hydrogenase that is capable of splitting water into its component parts of hydrogen and oxygen. The researchers have determined the mechanism for starting and stopping this process, which could lead to an almost limitless method for producing clean, renewable hydrogen. The algae need sulfur to grow and photosynthesize. Scientists found that when they starved the algae of sulfur, in an oxygen-free environment, the algae reverted to a hydrogenase-utilizing mode. This mechanism was developed over millions of years of evolution for survival in oxygen-rich and oxygen-free environments. Once in this cycle, the algae released hydrogen, not oxygen. Further research is necessary to improve the efficiencies of the engineered plant systems, collection methods and the costs of hydrogen generation.
Other Methods of Hydrogen Generation
Biomass Gasification and Pyrolysis
Biomass can be utilized to produce hydrogen. The biomass is first
converted into a gas through high-temperature gasifying, which
produces a vapor. The hydrogen rich vapor is condensed in pyrolysis
oils and then can be steam reformed to generate hydrogen. This
process has resulted in hydrogen yields of 12% - 17% hydrogen
by weight of the dry biomass. The feedstock for this method can
consist of wood chips, plant material, agricultural and municipal
wastes, etc
When biological waste material is used as a
feedstock, this method of hydrogen production becomes a completely
renewable, sustainable method of hydrogen generation.
