A start-up in Texas says it can turn the carbon dioxide emitted by power plants into baking soda. Some scientists have proposed compressing carbon dioxide and sticking it in underground caves as a way to cut down on greenhouse gases. Joe David Jones wants to make baking soda out of it.
Jones, the founder and CEO of Skyonic, has come up with an industrial process called SkyMine that captures 90 percent of the carbon dioxide coming out of smoke stacks and mixes it with sodium hydroxide to make sodium bicarbonate, or baking soda. The energy required for the reaction to turn the chemicals into baking soda comes from the waste heat from the factory.
“It is cleaner than food-grade (baking soda),” he said.
The system also removes 97 percent of the heavy metals, as well as most of the sulfur and nitrogen compounds, Jones said.
Luminant, a utility formerly known as TXU, installed a pilot version of the system at its Big Brown Steam Electric Station in Fairfield, Texas, last year. Skyonic, meanwhile, hopes to install a system that will consume the greenhouse gas output of a large–500 megawatts or so–power plant around 2009. Skyonic is currently designing one of these large systems.
“It has been working pretty well. It does present a potential solution to emissions,” said a representative for Luminant. “But right now there is still a lot of work to be done.”
If the concept works on a grand scale, it could help change some of the pernicious economics and daunting engineering challenges surrounding carbon capture and sequestration.