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W. R. Grace & Co. - Chicago 71st Street plant

W. R. Grace & Co. - Chicago 71st Street plant

Large load · 4099 W. 71st. Street, Chicago, IL

W. R. Grace & Co. operates a catalyst plant at 4099 W. 71st Street in Chicago, Cook County, Illinois. The site produces hydroprocessing catalysts used in petroleum refining and biofuels production.

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Overview

Grace's Chicago 71st Street site produces hydrotreating and hydrocracking catalysts. The site was established in 1943, acquired in 2000, and has approximately 95 employees.

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Electricity and grid: Site electrical technicians maintain substation equipment and work with low, medium, and high voltage electrical distribution systems, including transformers and primary and secondary switchgear.

Permits: In July 2025 Grace applied to Illinois EPA for a construction permit to increase an existing spray dryer's operating hour limit from 4,380 to 8,760 hours per year.