An Ecologically Friendly Utility for the 21st Century
H2 Power: The creation of hydrogen from Green Fuel to generate electricity and to fuel future autos without releasing carbon dioxide, nitrous oxide, heavy metals, sulphur, or particulate ...
Coal Conversion and Power Generation Processes
When bulk low-rank coal enters into the LRCWF process, the environmental drawbacks associated with dust generation and the resultant tendency toward spontaneous combustion are eliminated...
Overview of Silverado's Green Fuel Project
Silverado Green Fuel Inc is involved with a technology designed to convert low-rank coal--representing half of the U.S.'s coal reserves--into low rank coal water fuel (LRCWF or "Green Fue...
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When bulk low-rank coal enters into the LRCWF process, the environmental drawbacks associated with dust generation and the resultant tendency toward spontaneous combustion are eliminated. Low rank coal would be crushed, ground, and mixed with water (most of which is recycled from the process), then would be hydrothermally treated and formulated into a concentrated stable liquid fuel that is intended to be an alternative to oil. Green Fuel may then be fed at elevated pressures to an advanced high temperature slagging gasifier. During gasification the carbon and water in Green Fuel may be reacted with oxygen to produce carbon monoxide and hydrogen. The temperature would be maintained above the melting point of the ash (mineral matter) in the coal which would be removed as molten slag. The slag would be recovered as an inert glassy frit that could be sold for use in roadbeds and or high-strength concrete. Small quantities of impurities such as sulphur and nitrous oxides and particulates from coal ash may be removed from the hot product gas by commercial processes. In the next step, synthesis gas (carbon monoxide and hydrogen gases) would be reacted with steam via a water/gas shift phase reaction to generate additional hydrogen. In the shift phase reaction, carbon monoxide would react with additional steam to produce more hydrogen and carbon dioxide. The carbon dioxide may be separated from the hydrogen fuel via commercial processes and could be sold for use in enhanced oil recovery processes. The carbon dioxide may potentially be used to re-pressurize oil fields with the intent to increase oil production from oil fields world wide. In the last step, hydrogen gas would be the resultant fuel and may be used in an advanced gas turbine where it would be burned in air to generate power and water. It may also be used to generate power in advanced fuel cells. In either case, the intention is that power would be generated without the release of any greenhouse gases that could be detrimental to our environment. In addition to generating power cleanly from low-rank coal, this process is intended to help decrease dependence on imported oil, not only by domestic power generation, but by increasing production from indigenous oil resources by means of re-pressurizing oil fields with carbon dioxide, which would stay sequestered in the rock formations rather than being released to the atmosphere. |