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First Commercially Successful Thermal Conversion Process Debuts

West Hempstead, NY— Changing World Technologies, Inc. announced the first commercially successful application of thermal technology to convert organic waste into clean energy. Building on scientific research dating to the 1920's and human history extending from the Stone Age, CWT has patented, tested and deployed a technological process that has been awarded $12 million in grants from the U.S. government and produced a joint venture with ConAgra Foods, Inc.

Utilizing low-value waste by-products as feedstocks, CWT's thermal technology provides a commercially viable solution for some of the earth's gravest environmental challenges, including arresting global warming by reducing the use of fossil fuels, and reforming organic waste into a high-value resource. In addition, it has the potential to substantially reduce U.S. dependence on foreign oil.

Where earlier attempts at thermal conversion failed, CWT's thermal process succeeds in breaking down long chains of organic polymers into their smallest units and reforming them into new combinations to produce clean solid, liquid and gaseous alternative fuels and specialty chemicals.

The conversion process emulates the earth's natural geothermal activity, whereby organic material is converted into fossil fuel under conditions of extreme heat and pressure over millions of years. The cornerstone technology, called Thermal Depolymerization Process or TDP, mimics the earth's system by using pipes and controlling temperature and pressure to reduce the bio-remediation process from millions of years to mere hours.

The process entails five steps: Pulping and slurrying the organic feed with water; Heating the slurry under pressure to the desired temperature; Flashing the slurry to a lower pressure to separate the mixture; Heating the slurry again (coking) to drive off water and produce light hydrocarbons; Separating the end products.

TDP is 85% energy efficient. The process has very low Btu requirements, due to the short residence times of materials at each stage and to the holding of water under pressure. In addition, it generates its own energy, utilizes recycled water throughout, and uses the steam naturally created by the process to heat incoming feedstock, thereby recapturing expended energy.

According to Howard Buffett, who represents ConAgra's investment, "We've got a lot of confidence in this. We wouldn't be doing this if we didn't anticipate success."

 

 

 

 

 


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