Why Isn’t This Happening in Midlothian?

A Zachary Construction Company-owned San Antonio cement plant is finally going forward with the nation's first full-scale carbon capture plant .

Austin-based Skyonic Corp. will build a $125 million facility by 2014 to recycle 15% of the cement plant's CO2 emissions, or about 83,000 tons a year, into less-harmful byproducts such as bicarbonate soda. It also promises to filter acid gases and heavy metals pollution out of the kiln's plume.

Skyonic has a patented process called "SkyMine" that it says converts carbon dioxide emissions into baking soda and can be retrofitted to any industrial plant. The company received $25 million in stimulus funding from the Department of Energy toward the final cost of the San Antonio facility. 

The project was first announced in 2010, but had trouble attractign addtional private funding until now.

Cement plants are among the largest point sources of CO2 on the planet, and the industry as a whole accounts for just over 5% of the world's human-made CO2 . Kilns are among the first wave of facilities that had to inventory their Greenhouse Gas pollution for EPA in 2010, and are expected to be targeted for actual reuductions in the future.

Modernization among the three large cement plants in Midlothian has reduced their carbon foot print over the last 20 years, but they still remain the largest point sources for CO2 pollution in North Texas, with over two million tons of emissions annually self-reported by Ash Grove, Holcim, and TXI in that 2010 inventory – the latest we have.