The global demand for alternative energy sources has driven the conversion of organic materials such as soybeans and wood chips into biodiesel and ethanol fuels. Supporting this initiative, automation solutions were implemented in the world’s two largest biodiesel facilities, located in Argentina and Indiana, as well as in cellulosic ethanol production projects across the United States and internationally.
For the Indiana facility, an Allen-Bradley ControlLogix PLC system and Wonderware ArchestrA Technology platform were designed, programmed, and built. The Argentina facility utilized a Siemens and Wonderware-based automation solution, while the cellulosic ethanol plant implemented a Siemens PCS7 integrated DCS control and SCADA system. These automation systems were engineered to meet Class 1, Division 1 hazardous area specifications.
Collaborating with process designers, optimized automation sequences were developed, leading to the creation of a standardized library of control system objects (PLC & Wonderware). These pretested modules streamlined project deployment, significantly reducing engineering efforts and field startup time.
In-house designed and fabricated PLC panels adhered to UL698A/B hazardous area standards, incorporating over 400 Intrinsically Safe Isolator circuits. Additional components supplied included remote I/O panels, centrifuge hazardous-area-rated operator interface panels, and nitrogen purging units for centrifuges processing combustible liquid streams, ensuring safety and operational efficiency in hazardous environments.
