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Reduction of Sulfur Dioxide Emissions from Smelter Ovens

EPA Contract Number: 68D10054
Title: Reduction of Sulfur Dioxide Emissions from Smelter Ovens
Investigators: Wijmans, J. G.
Small Business: Membrane Technology and Research Inc.
EPA Contact: Manager, SBIR Program
Phase: I
Project Period: September 1, 1991 through March 1, 1992
Project Amount: $50,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1990)
Research Category: Air Quality and Air Toxics , SBIR - Air

Description:

Sulfur dioxide and nitrogen oxides are the chief precur- sors of acid rain, and their continued emission into the atmosphere has become a global concern. It is estimated that 23.4 million tons are emitted from industrial processes yearly, mainly from nonferrous metal smelting operations. Nonferrous metals, including copper, nickel, zinc, lead, and molybdenum, are mined as metal sulfides, and the metal liberated by roasting the sulfides in a smelter oven. The smelter oven is fed with air or oxygen-enriched air and produces an offgas containing large amounts of sulfur dioxide.

Membrane Technology and Research, Inc., has devel- oped a class of membranes that is extremely selective for sulfur dioxide over other gases. In the Phase I program, a laboratory system that includes a spiral-wound module containing the new membrane will be tested for its sulfur dioxide removal capability. An application study will be performed to identify the most efficient methods to improve sulfur dioxide capture.

Supplemental Keywords:

Toxics, Air, Sustainable Industry/Business, Scientific Discipline, Technology for Sustainable Environment, Engineering, Chemistry, & Physics, HAPS, air toxics, Chemistry, cleaner production/pollution prevention, Chemistry and Materials Science, 33/50, membrane technology, membrane separation system, membranes, membrane technology , lead, removal, membrane-based, acid rain, air pollutants, lead & lead compounds, Sulfur dioxide, air pollutant precursors, air pollution, Lead Compounds, metals, Nickel Compounds, air pollution control, control, nickel & nickel compounds, sulfur dioxide (SO2), Sulfur Oxides (SO2), air emissions, membrane modules

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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.

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