Technology [home]
Waste Heat Recovery Technology

A system designed to capture waste heat from industrial smokestacks and turn it into electricity could significantly boost the efficiency of power stations, drastically cutting carbon emissions. It could also reduce the amount of toxic pollution released into the atmosphere.  The key to the efficiency of the heat-scavenging system is that it uses propane vapor rather than steam to turn a turbine and drive an electricity generator. This allows it to be driven by low-temperature waste heat. There are three technologies to consider:

1. Cascading Closed Loop Cycle (CCLC)
   The CCLC system is a unique advanced process technology.  It efficiently converts heat at low and high temperatures to electrical power using a patented heat exchanger, turbine/generator arrangement. One of the many advantages of CCLC is its ability to utilize industrial heat sources (typically ranging from 300 °F to 700 °F) that is generally discharged to the environment in nearly all industrial processes that consume fuel. When used as a pollution reduction device, its ability to generate electricity makes it unique in that it is an emissions control technology that generates profits. CCLC systems are additionally a source of uninterrupted power for driving pipeline compressors, pumps, blowers and other rotating equipment.
   
   
2. Super CCLC
   A variant of the CCLC system, the Super CCLC is operated in conjunction with power plants with steam turbine systems.  In addition to recovering the flue gas heat, the Super CCLC uses steam and condensate to supplementary heat the working fluid.  This can result in a substantially higher increase in power generation.  Super CCLC is ideal for use in new electricity generating plants, or to retrofit existing installations. Another operational and financial benefit is the substantial reduction in plant water consumption by the potential to eliminate vacuum condensing systems. 
                  
3. Final Flue Gas Cleanup (FFGC) System
   The Final Flue Gas Cleanup (FFGC) System design was driven by the need to treat efficiently and economically low temperature flue gases as a result of a CCLC installation.  FFGC creates a single system to remove multiple pollutants in these low temperature flue gas streams.