Ash Grove Cement first for Midlothian plant

Delegates at the IEEE-IAS/PCA Cement Industry Technical Conference taking place this week will will tour the first National Emissions Standards for Hazardous Air Pollutants -compliant kiln in the United States.

Ash Grove Cement Co's Midlothian plant in Texas
Ash Grove Cement Co’s Midlothian plant in Texas

Ash Grove Cement Company’s Midlothian, Texas plant modernised its pyroprocess and met NESHAP requirements by September 2014, a whole year ahead of most other US cement plants.

The modernisation project at Ash Grove Cement Co’s Midlothian cement works saw the plant’s three wet kilns replaced with one semi-dry preheater/precalciner kiln, a new cooler, low-NOx burner and the country’s first FLSmidth Hot Disc reactor.

The project enabled plant management and staff to amass considerable experience dealing not only with National Emissions Standards for Hazardous Air Pollutants compliance but also with the issues the plant experienced during the commissioning stage, says Jacqueline K Clark, Ash Grove Cement, writing in CN Cemnet.

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