Archive for the ‘Hydrogen Info’ Category

Producing Hydrogen Fuel for Cars

Wednesday, February 25th, 2009

Everyone knows that we need to find a stable new source of fuel and energy for the world which at the same time is environmentally friendly.  Hydrogen can, in fact, be that fuel. Hydrogen can provide the energy for our homes and cars. However, massive production of hydrogen can be a problem.  Can we have or can we consider having a hydrogen economy? I think we can and it is the most over-looked fuel we have.

Most of the natural hydrogen that exists in the Earth’s atmosphere is not in usable form. So that means we have to refine it or create it through a manual process. Some of the methods used so far to produce usable hydrogen today are through water electrolysis and natural gas steam reforming.

The two methods really don’t produce the quantities needed to fuel our many homes and cars. Scientists and researchers are working hard to come up with new and improved methods to meet the growing potential demand for hydrogen fuel in the coming years. Today, there are other renewable sources of fuel like ethanol, biomass, tidal energy, wind farms, solar, and hydroelectric energy. Gravitational energy is also an experimental resource at the moment.

Some new technology that scientists and researchers are looking into at this time are the possibility of capturing hydrogen byproducts. Some processes give off hydrogen as a byproduct and this is one possible way to obtain more hydrogen. Today’s technology is also making use of clean coal to produce electricity. The process also gives off hydrogen and so it could be captured and sold to hydrogen facilities as a commodity. This is a great solution as many countries have a thriving coal industry and moving away from that would devastate those communities. So this initiative is a win-win. There will be more jobs and there will be fewer noxious fume emissions.

The byproduct in the production of sodium chlorate is also hydrogen. Bleaches and pesticides need sodium chlorate to create many of the products we use today.  This would mean a great amount hydrogen byproducts plus the backing of a lot of corporations who are feeling the pressure of the growing environmental standards for emission control.

Canada is currently using hydrogen technology and is is one of the first countries to take advantage of the  use of hydrogen byproducts.  Using this technology, Canada is able to have enough hydrogen to power 20,000 vehicles for a year. The Olympics in 2010 will be held in Canada and the country’s hydrogen technology will be featured there.

Certain laboratories and US departments are conducting continuous studies regarding the use of steam from nuclear reactors to produce hydrogen through electrolysis. The steam will be used to cool the reactor and then perform electrolysis.

The move to hydrogen technology does not have to be a bad problem. What the world has now can be modified easily or simply upgraded to meet the demands for hydrogen in the coming years. Perhaps with continuous research and studies, a better way of producing hydrogen can be discovered. With the joint efforts of various governments and institutions, hydrogen economies can be established. Everyone will benefit from hydrogen technology and not only that, it can also help in answering the environmental problems faced by the world today.

We see signs and commercials everyday inspiring people to make a difference.  And everyone truly does want to help their country and the whole world. Why not consider the use of an alternative fuel like hydrogen? Your car can be converted to use hydrogen fuel. Experience the different feel of driving  a hydrogen powered car. You will love it because you can increase your mileage, have a cleaner running engine, and cut down your gasoline expenses. Who doesn’t want that?

With the money you save you could prepare to buy a genuine hydrogen powered car in the near future. So what are you waiting for? Have your car converted and make use of hydrogen technology. Save the planet and save your pocket.

WHAT IS HYDROGEN?

Sunday, August 31st, 2008

Hydrogen is the smallest and simplest element known to man. Each atom of hydrogen has one proton and one electron. It is also the most abundant gas in the universe. Every star is primarily made of hydrogen.

image of the sunThe sun is essentially a giant ball of hydrogen and helium gases. At the sun’s core, the hydrogen atoms combine to form helium atoms. In this process called nuclear fusion, the sun gives off radiant energy.

It’s this radiant energy that causes life to exist on earth. The sun gives us light and makes plants grow. It causes the wind to blow and the rain to fall. It is stored as chemical energy in fossil fuels. Most of the energy we use today comes from or came from the suns’ radiant energy.

Hydrogen gas is lighter than air and, as a result, it rises in the atmosphere. This is why hydrogen as a gas (H2) is not found by itself on earth. It is found only in compound form within other elements. Hydrogen combined with oxygen, is water (H2O). Hydrogen combined with carbon, forms different compounds such as methane (CH4), coal, and petroleum. Hydrogen is also found in all living things as biomass. It is also an abundant element within the earth’s crust.

Hydrogen has the highest energy content of any common fuel by weight (three times more than gasoline), but the lowest energy content by volume (four times less than gasoline). It is the lightest element, and exists as a gas at normal temperature and pressure.

HYDROGEN IS AN ENERGY CARRIER

An energy carrier is a substance or system that moves energy in a usable form from one place to another. Electricity is the most well-known energy carrier. We use electricity to move the energy in coal, uranium, and other energy sources from power plants to homes and businesses. We also use electricity to move the energy in flowing water from hydropower dams to consumers. It is much easier to use electricity than the energy sources themselves.

Like electricity, hydrogen is an energy carrier and must be produced from another substances. Though hydrogen is not widely used today, it has great potential as an energy carrier. Hydrogen can be produced from a variety of sources (water, fossil fuels, biomass) and is a byproduct of other chemical processes. Unlike electricity however, large quantities of hydrogen can be easily stored for later use. Hydrogen can also be used in places where it’s hard to use electricity.  Hydrogen can easily be stored, and can then be shipped as needed.




MAKING HYDROGEN

Since hydrogen doesn’t exist on earth as a gas, we have to separate it from other elements. We can separate hydrogen atoms from water, biomass, or natural gas molecules. The two most common methods for producing hydrogen are steam reforming and electrolysis (water splitting). Scientists have even discovered that some algae and bacteria give off hydrogen.

  • Steam reforming is currently the least expensive method of producing hydrogen and accounts for about 95 percent of the hydrogen produced in the United States. It is used in industries to separate hydrogen atoms from carbon atoms in methane(CH4). Because methane is a fossil fuel, the process of steam reforming results in greenhouse gas emissions that are linked with global warming.
  • Electrolysis is a process that splits hydrogen from water. It results in no emissions but it is currently a very expensive process. New technologies are being developed all the time.

Hydrogen can be produced at large central facilities or at small plants for local use. Every region of the country (and the world) has some resource that can be used to make hydrogen. Its flexibility is one of its main advantages.

USES OF HYDROGEN

About 7.8 million metric tonnes (17.2 billion pounds) of hydrogen are produced in the United States today, enough to power 20-30 million cars or 5-8 million homes. Nearly all of this hydrogen is used by industry in refining, treating metals, and processing foods. Most of this hydrogen is produced in just three states: California, Louisiana, and Texas.

Hydrogen Fuel CellThe National Aeronautics and Space Administration (NASA) is the primary user of hydrogen as an energy fuel; it has used hydrogen for years in the space program. Liquid hydrogen fuel lifts the space shuttle into orbit. Hydrogen batteries—called fuel cells—power the shuttle’s electrical systems. The only by-product is pure water, which the crew uses as drinking water.

Hydrogen fuel cells (batteries) make electricity. They are very efficient, but expensive to build. Small fuel cells can power electric cars. Large fuel cells can provide electricity in out of the way places with no power lines.

Because of the high cost to build fuel cells, large hydrogen power plants won’t be built for a while. However, fuel cells are being used in some places as a source of emergency power to hospitals and to wilderness locations. Portable fuel cells are being sold to provide longer power for laptop computers, cell phones, and military applications.

HYDROGEN USE IN VEHICLES

There are currently about 200 hydrogen-fueled vehicles in the United States – mostly in California. Most of these vehicles are buses and automobiles powered by electric motors. They store hydrogen gas or liquid on board and convert the hydrogen into electricity for the motor using a fuel cell. Only a few of these vehicles burn the hydrogen directly (producing almost no pollution).

Hydrogen vehicles are starting to move from the laboratory to the road. One California family has recently leased a hydrogen car for personal use. The U.S. postal service, a package delivery company, a few Florida Park rangers, and a few private utility companies are also using hydrogen vehicles. It will probably be at least 10 years, though, before you can walk into your local car dealer and drive away in an affordable hydrogen-powered car.

Even then, you will need a place to refuel your hydrogen car. Currently, there are about 25 hydrogen refueling stations nationwide. This is the so-called “chicken and egg” problem that hydrogen developers are working hard to solve. Namely: who will buy hydrogen cars if there are no refueling stations? And who will pay to build a refueling station if there are no cars and customers?

One possible solution is to eliminate refueling stations entirely. Automobile manufacturers have already designed a refrigerator-sized hydrogen generator for your garage that works off electricity.  Consumers would simply refill their cars with hydrogen each night while it is parked.

THE FUTURE USES OF HYDROGEN

Hydrogen is the best resource for providing an environmentally clean fuel and as a way to reduce the reliance foreign oil.  As easy as we can convert an automobile for natural gas, we can also fit a car for Hydrogen gas.  With water as the most abundant resource on the planet, hydrogen can easily be created through electrolysis and used for fuel.

Before hydrogen can play a bigger energy role, many misconceptions must be changed and some technologies must be introduced to the consumer.  Home hydrogen generating systems will need to be purchased by consumers where home fueling stations can be made a reality. No need to find gas stations when you can fuel up at home.  Gas stations can also make and dispense their own on site fuel using the same methods. Another alternative is to have hydrogen replace coal and diesel in existing power plants.  This now environmentally friendly electricity can be distributed cheaply through the existing power grid.

The more the general public learns about uses and benefits of hydrogen the more they will understand and realize that hydrogen can truely be one of our best energy sources.





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