ST LOUIS, Jan. 11 /PRNewswire/ -- Chrysler LLC is partnering with a
major Midwest utility company and university researchers in a project to
determine if paint solid residues from automobile manufacturing can reduce
emissions of mercury from electric power plants.
For the past year, Chrysler has recycled paint solid residues from its
two St. Louis assembly plants for use as an alternative fuel in Ameren
Corporation's nearby Meramec electric utility plant. Prior to this project,
Chrysler's St. Louis plants were sending one million pounds of dried paint
solids to landfill each year.
Now, the paint solids replace about 570 tons of coal per year in the
The paint solid residues contain titanium dioxide, which has the
potential to remove mercury from coal-powered plant emissions without
affecting other processes in the plant. Mercury is chemically bonded with
titanium oxide, a process known as chemisorption, and thus is potentially
easier to trap in the plant's emissions scrubber system, research has
"Our 'Paint to Power' program in St. Louis is a recycling success
story. Rather than filling up scarce landfill space, we are using these
paint wastes to produce power for St. Louis residents and businesses," said
Deb Morrissett, Vice President of Regulatory Affairs at Chrysler.
"Now we may be able to build on that success to further protect the
environment from mercury emissions," Morrissett said.
The effectiveness of titanium dioxide in controlling mercury emissions
has been demonstrated in the laboratory and recent field studies, according
to Dr. Pratim Biswas, chair of the Department of Energy, Environmental and
Chemical Engineering at Washington University in St. Louis. Biswas is
heading up the project to test the process in a full-scale power plant.
Prof. Biswas and his research team have demonstrated the ability of
nanostructured titanium dioxide to remove mercury with greater than 95
percent efficiency. Recently concluded tests in a pilot scale facility have
further corroborated the results of the laboratory research.
Mercury is released into the environment in trace quantities from the
burning of coal in electric-generating plants. The amount of titanium
dioxide in the paint solids from the Chrysler plants would be sufficient to
remove the trace amounts of mercury from power plant emissions, Biswas
The electric power industry is currently studying the use of various
other chemicals to remove mercury from power plant emissions. The U.S.,
government has implemented the world's first requirements to cut mercury
emissions from electric power plants.
Through its collaboration with Chrysler's St, Louis assembly plants,
Ameren's 855-megawatt Meramec power plant is the first in the nation to
generate electricity by burning paint solids recovered from an automotive
manufacturing facility. In the initial phase, the project produces enough
electricity to power 70 homes for a year.
The project has been recognized with a pollution prevention award from
the St, Louis chapter of the National Association of Environmental Managers
and with an Environmental Leadership Award from Chrysler.
About the Partners
Chrysler LLC's two St. Louis assembly plants manufacture the Dodge Ram
light- and heavy-duty pickup trucks and the Chrysler Town & Country and
Dodge Grand Caravan minivans.
St. Louis-based Ameren Corporation and its subsidiaries serve 2.4
million electric customers in Missouri and Illinois.
Washington University in St. Louis is an internationally-recognized
independent teaching and research center with approximately 3,100 faculty
and 11,000 students.
SOURCE Chrysler LLC