Clean Coal – An Oxymoron or a Real Possibility?

Clean Coal – An Oxymoron or a Real Possibility?

Can coal be clean? We have all heard the condescending advertising, listened to the biased politicians, and been overwhelmed with huge amounts of conflicting “expert” opinion and research data from each side.

Let’s start with the basics, “What is coal?” Coal is a sedimentary rock made up mostly of carbon, with varying amounts of sulfur, oxygen, hydrogen, nitrogen, and lesser amounts of many contaminants including mercury and other poisonous compounds.

We believe coal is primarily made up of plant material that has partially degraded, compressed and through this pressure and with time and other geologic forces been transformed into the many forms of what we refer to as coal. Some of these forms are Peat, Lignite, Bituminous, Anthracite, and Graphite.

The process of photosynthesis converts carbon dioxide into carbon, the conversion of the dead plant matter into coal sequesters the carbon in the ground. If we look at this in a very big picture sense, coal is the energy of the sun converted and stored. When the coal is burned, that carbon is released in the form of carbon dioxide. This could be a manageable cycle, however what is happening today, is that millions of years worth of this stored sunlight bound up in the form of carbon is being released in a relatively short period of time. This rapid release has overloaded the systems (the worldwide environments) ability to convert the carbon dioxide back into some stored form.

What can we do about this problem? First we must burn (or otherwise convert) this coal as cleanly and efficiently as possible. Large scale coal gasification and burning to create electricity will create fewer more easily managed source of pollution. These very large sources can be more easily forced to the use technology needed to clean the exhaust stream coming from such a facility.

Next we need to develop ways to reuse or store the Carbon Dioxide (CO2). There are ideas that would pump this material back into the earth either as part of oil pumping operations or into decommissioned mines.

I believe that we need to consider alternatives that would use some significant part of this CO2 to grow Algae as part of a closed loop energy system (See previous article on the Richards Cycle) or some other photosynthetic process that would convert the CO2 back into a safe storable (or reusable) form.

Coal can also be converted into high quality liquid fuel s (gasoline and diesel) through several processes. If we can create a more earth-friendly method of doing this, we could significantly reduce our dependence on and need for imported oil.

While this is not a permanent solution, it would definitely give us a cushion while we develop alternative energy forms and strategies.

Whether or not Coal can ever be Clean, I don’t know. What I am certain of is that we can develop much cleaner, safer, and eco-friendly methods to mine and use this high quality domestic energy source.

Please post your comments, thoughts, ideas, and suggestions.

For more information, please visit: http://www.lcbamarketing.com and click on Technical Articles.

Diesel Doctor

Copyright 2009© - William Richards

What Happens when Gasoline is Burned in an Engine

What happens when gasoline or other petroleum fuel is burned in an Engine?

Gasoline (or any petroleum fuel) is mostly carbon that when burned releases energy in the form of heat. This heat energy makes the engine run and allows it to do work.

The bad part of this process is that the carbon when burned is converted into Carbon Dioxide (CO2). Imagine that a gallon of gasoline weighs between 5.93 to 6.42 lbs (depending on type, temperature, blend and other factors) and as it is burned most of it is converted into CO2 weighing between 5 and 6 lbs per gallon.

If this CO2 was a visible solid, you would have to constantly plow the roads as it would build up like snow in a blizzard. But as it is an invisible gas that floats away, nobody pays any attention to it.

Now imagine that worldwide we burn 80,000,000+ barrels (3,486,000,000+ gallons) (Note: The US uses approximately 25,000,000+ barrels or 1,050,000,000+ gallons) of oil per day and 90% - 95% of that becomes CO2.

That’s 20,916,000,000+ lbs. (Twenty Billion, Nine Hundred Sixteen Million Pounds per Day) of CO2 per day, an incredible amount of carbon that we expect the atmosphere to magically absorb. Again if this was a visible solid, we would be buried in a matter of weeks.

Now, I am a proponent of diesel engines, if for no other reason that they are far more efficient than gasoline engines (30+%). If the portion of this fuel that is refined into gasoline was instead refined into diesel you would reduce that consumption by 30+%.

If you capture CO2 from the atmosphere or better yet from the source and use it to grow algae or other plants, you are using photosynthesis to sequester this carbon. If that biomass is then converted into a biofuel and burned in efficient manner you have formed a closed loop where you can nearly stop the increase of carbon released into the environment.

I believe that short of someone developing cold fusion, the development of algae oil biofuels is our best choice for continued use of liquid fuels. This technology could be made commercially viable in just a few years and produce a high quality oil that could be converted into diesel and other fuels for about $20.00 per barrel. Even if I am wrong by 100%, the cost would still be where the cost of crude is today (02/25/2009).

These are things we need to be thinking about. What’s your opinion?

Diesel Doctor

Copyright 2009©- William Richards

The Richards Cycle

The Richards Cycle™

The Richards Cycle™ is a renewable energy concept that combines existing and developing technologies to produce a high quality biodiesel fuel and electricity through a carbon neutral process. Additionally this process can absorb huge amounts of CO2 from other fossil fuel burning processes and plants.

In the Richards Cycle™ land not suitable for farming such a desert and high desert areas can be used for producing oil from Algae. Algae grown in high density greenhouses can produce as much as 100,000 gallons per acre per year. In this process tons of CO2 together with sunlight are converted through photosynthesis into Algae Oil.

You could theoretically place a coal burning power plant next to the greenhouses and pipe the CO2 emissions from the plant right into them where it would be absorbed immediately.
You can then transesterify and or refine the Algae Oil into high quality diesel or heating fuels. You can then use this fuel to generate power or pipe to markets all over the US as motor or heating fuel.

This fuel when burned in a state of the art power plant would be carbon neutral and would produce low cost power. Biodiesel derived from the Algae Oil can be made to burn cleaner than petroleum fuel and would be considered carbon neutral.

You can see this image at: http://www.lcbamarketing.com/richards_cycle.htm

This method could produce a significant portion of the nation’s motor fuel, heating oil, industrial fuel oil, and can provide a way to produce an important amount of electrical energy through coal or oil fired power plants without a negative impact on CO2 emissions.


Because this method can be used in most climates, over most of the earth it provides a way to obtain reasonably priced biofuels for motor fuel, heating fuel, industrial fuel oil, and marine fuel oil without the need petroleum fuels.


For areas of the world that currently derive large percentages of their electrical energy from oil fired power plants and diesel powered generators, this provides a way for them to break their dependence on imported or low grade domestic oil.


This is the first viable sustainable renewable energy project that does not use up materials and land diverted from producing foodstuffs.


We encourage your comments, thoughts, and ideas.


Doctor Diesel



Copyright 2009© William R. Richards