CEMENT MACT WEBINAR

February 9, 2011

CLICK HERE to view and hear the entire webinar

Karl Wilber, PE, General Manager of Tekran Instruments, identified the specific challenges facing the Portland Cement Industry as they further develop their strategies in response to EPA’s MACT regulations. The presentation included emissions limits and CEM parameters which are integral to MACT compliance, with focus on mercury (Hg). Tekran shared their experiences in the cement, power, steel and incineration processes, the company has supplied a number of mercury CEMS to the power industry and is presently quite active in the cement industry. Because of its work with analyzers on a broader basis it has an understanding of the fate of mercury. This is important because removal from the air is only the first step. Prevention of mercury problems in soil and water are equally important.

Another need is use the mercury CEM as a control device to regulate the quantity of sorbent injection. This will dictate a measurement both before and after the control device. Because of the large difference in range to measured and other factors it is probably best to install a separate analyzer rather than to use two sample lines and one analyzer.

Dan Kietzer, Business Development Manager at SICK MAIHAK, Inc. Process Automation Division, enumerated the monitoring techniques for compliance with the MACT rule. Specifically, the measurement of HCl, PM and Hg need special attention. Sick Maihak is well positioned to supply the entire range of monitors needed to meet the new MACT standards. The company has considerable experience with various types of mass particulate monitors. The selection is dictated by whether the gas is wet or dry. One critical aspect is the calibration requirement.

Dr. Ronald R. Landreth, Technical Business Development Manager at Albemarle Corporation Mercury Control Division, offered an Alternative Method of Hg and THC control using existing cement kiln particulate control equipment. Albemarle has pioneered the development of a control technology that focuses on the use of the existing particulate control equipment in cement kilns rather than the addition of a polishing or secondary baghouse. This is made possible by the development of a cement friendly sorbent for mercury capture. This sorbent is both efficient and cost effective.