ICT was responsible for the design of a new Combined Heat and Power (CHP) plant for this ethanol production facility. The CHP system consists of a 7.5 MW combustion turbine with a Heat Recovery Steam Generator (HRSG) and a duct burner for supplemental firing of gas to increase the production of steam. The HRSG can produce 135,000 lb/hr of saturated steam at 135 psig, and the system is configured with a diverter damper, bypass stack, and a fresh air firing fan to allow fresh air firing to produce steam when the turbine is not operating due to maintenance outages.

The CHP system is connected to the facility’s steam auxiliary systems serving the existing boilers, and the CHP control system is integrated with the plant boiler control system in an existing control room. The CHP system is installed in a new building which includes electrical rooms and a battery room to support CHP operations.

Project Highlights:

• In addition, a new Regenerative Thermal Oxidizer (RTO) is installed adjacent to the existing Energy Center at the facility.