Case Study: Replacing Natural Gas For Industry
Summary: Aries Clean Energy’s patented downdraft gasification systems were first deployed for Boral Brick in Alabama, Georgia, and Tennessee to offset natural gas costs that were topping $10/decatherm.
Problem: Natural gas prices skyrocketed in the mid-2000s. Aries downdraft gasification systems were deployed to convert waste into a syngas to offset the high natural gas costs of Boral Brick Manufacturing.
Approach: Twelve of the Aries Clean Energy ACE DDSF-1000 (an 8-ton/day) gasifiers were installed between 2007 and 2009 and successfully fired large-scale brick kiln operations with the following specifications:
Input materials: Locally sourced wood diverted from landfills
Process: Computer controlled pneumatic and mechanical systems assured consistent feedstock delivery to gasifiers
Process: Producer gas (syngas) direct fired to heat brick kilns
Output: Gasifiers output fuels a full MW Caterpillar electric generator after processing syngas through a proprietary system and sold energy back to the grid via TVA
Results: The footprint of the gasification plant was less than one acre.
When the national building industry was battered by the recession, all three Boral Brick installations were closed and remain so.
Testimonial: This is such a great example of sustainability and could be a wonderful model for the rest of the world. They are using systems thinking to reduce waste, produce renewable energy, capture heat that normally would be wasted, and are also producing biochar which has great agricultural benefits.
- Judge from Environmental Leader Awards