Dow Corning To Install $50 Million Plasma Recycling System

by | Oct 2, 2007

Dow Corning has announced a $50 million investment in new equipment for its Midland, Michigan plant that is expected to reduce carbon dioxide emissions by 20 percent, total emissions by 75 percent, and lower the site’s consumption of natural gas by 400 billion Btu per year, according to the company.

The new equipment includes a recycle system designed to remove and recycle by-products from manufacturing processes, and a thermal oxidizer that will reduce air emissions from the site while generating steam for process heating.

The recycling system uses a plasma gasification process that separates the waste material generated in the chlorosilanes manufacturing process into organic and chlorine parts. The organic portion is converted into a synthetic gas for use in the steam boilers. The chlorine portion will be converted into one of the raw materials used to make chlorosilanes. Remaining materials will be turned into a relatively small amount of inert obsidian-like glass that is also recyclable.

When fully operational this process will generate approximately one-third of the site’s steam load.

Dow Corning is working with two companies on the project. The waste processing system will be owned by Integrated Environmental Technologies. A second company, Veolia Environmental Services, was contracted by IET to operate the recycling equipment. Several of the new jobs created from this investment will be Veolia Environmental Services employees.

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