Innovative Volatile Heavy-Metal Air-Toxics Control

EPA Contract Number: 68D40032
Title: Innovative Volatile Heavy-Metal Air-Toxics Control
Investigators: Nelson, Sid
Small Business: Sorbent Technologies Corporation
EPA Contact: Manager, SBIR Program
Phase: I
Project Period: September 1, 1994 through March 1, 1995
Project Amount: $55,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1994) RFA Text |  Recipients Lists
Research Category: Air Quality and Air Toxics , SBIR - Air Pollution , Small Business Innovation Research (SBIR)


The emission of heavy metals, particularly mercury, into the atmosphere from combustion sources has increasingly become a major environmental and health concern. The recent Clean Air Act amendments have called for specific numerical limits on mercury emissions. Unfortunately, because it is a vapor or submicron aerosol in gas streams, elemental mercury has proven very difficult and expensive to control.

A new dry material was recently discovered that exhibits a surprising capability to sorb this air toxic from gases. Initial experiments have shown a high capacity for preferential sorption of elemental mercury under typical flue gas conditions, as well as the potential for regenerability. Moreover, the new material is inexpensive and offers the opportunity to be simply retrofited at existing facilities.

The proposed research will begin to explore the capabilities of the new mercury-sorbent materials at the bench-scale in both duct-injection and fixed-bed application modes. If successful, a pilot-scale demonstration could immediately follow.

Supplemental Keywords:

RFA, Scientific Discipline, Air, Waste, Sustainable Industry/Business, Chemical Engineering, air toxics, cleaner production/pollution prevention, Environmental Chemistry, Sustainable Environment, Chemistry, Technology for Sustainable Environment, Civil/Environmental Engineering, Incineration/Combustion, Engineering, Engineering, Chemistry, & Physics, Environmental Engineering, volatile heavy metals, mercury, combustion gas streams, combustion sources, mercury emissions, regenerable adsorbent, dry sorbent, combustion emissions, flue gas, sorbent technology, mercury sorbents, treatment, mercury absorbtion, sorbents, mercury recovery, regenerable sorbent, mercury abatement technology, heavy metals

Progress and Final Reports:

  • Final
  • SBIR Phase II:

    Innovative Volatile Heavy-Metal Air-Toxics Control