We at Rain Carbon In., are proud of our role as an industry leader in power co-generation. Together, we’re helping create a cleaner, greener tomorrow

Resourceful waste-heat recovery saves energy and protects the environment. The high temperature generated within the calcining process provides a significant opportunity for energy conservation and recycling. Process-heat recovery reduces greenhouse gas emissions and critical air pollutants, and results in a more carbon-neutral co-generation of energy. As part of Rain Carbon’s commitment to a clean and efficient industry that works in harmony with the environment, the company has made a significant investment in heat-recovery systems at five of its calcined petroleum coke (CPC) facilities, with a generation capacity of approximately 125 megawatts.

These heat-recovery projects co-generate electric power from waste heat recovered in the calcining process. Energy recycling is accomplished by first causing the complete combustion of residual hydrocarbons and any solid carbon emerging as an exhaust from the calcination process, and then capturing this thermal energy in a heat-recovery steam generator. The resulting high-pressure steam is used to generate electricity or to provide thermal heating for other industrial processes. This conserves the use of additional fossil fuels. The combination of energy recycling with calcining therefore achieves the simultaneous benefits of CPC production and energy conservation.

Most of the electricity recovered from the calciners is sent to the regional power grids for transmission to local users. Rain Carbon has entered into agreements with local utilities for the supply of power. Based on the national averages for electric power production, the co-generation plants will reduce greenhouse gas emissions by more than 150,000 tons per year. This reduction occurs because the project generates power without burning additional fossil fuel and by recycling heat energy from the calciner exhaust.

Rain Carbon also co-generates energy at four of its distillation and advanced materials facilities, with a waste-heat recovery steam generation capacity of approximately 59 megawatts. The resulting energy is used to power internal process or is exported to electric power grids and industrial partners.