Use of sulfur from liquid redox processes as an oxidation inhibitor in wet FGD systems in place of emulsified sulfur
Technical Report
·
OSTI ID:121468
- Radian Corp., Austin, TX (United States); and others
A low-cost alternative to commercial {open_quotes}emulsified{close_quotes} sulfur was developed. The project investigated the use of byproduct sulfur from the gas processing industry as an oxidation inhibitor for wet flue gas desulfurization (FGD) systems in the electric power industry. The byproduct sulfur is a filter cake from a type of gas sweetening technology called {open_quotes}liquid redox{close_quotes}. In the past, the liquid redox sulfur has often been placed in landfills at considerable expense because the sulfur cake does not meet specifications for other uses such as sulfuric acid manufacture. This EPRI- and GRI-sponsored project developed a beneficial use for the liquid redox sulfur that also reduces costs for the electric utility industry. A key result of the project was the development of methods to convert the solid sulfur cake into a water-based suspension, commonly called {open_quotes}emulsified{close_quotes} sulfur, to simplify handling and addition to wet FGD systems. Pilot-scale tests at EPRI`s Environmental Control Technology Center (ECTC) [formerly known as the High Sulfur Test Center or HSTC] and full-scale tests at the TU Electric Martin Lake station have proven that the low-cost liquid redox sulfur performs well as an oxidation inhibitor in FGD systems. The tests also showed that the liquid redox sulfur did not negatively affect FGD performance nor change the composition of the FGD byproduct solids. Although the savings vary on a case-by-case basis, the U.S. electric industry could potentially save $800,000/yr while simultaneously providing a beneficial use for a gas industry byproduct. Similarly, the U.S. gas processing industry could save $330,000/yr by avoiding landfill costs. As a side benefit to the gas industry, the sulfur suspension results achieved by the project may also allow other potential uses of the byproduct sulfur, including use as an agricultural supplement.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (United States)
- OSTI ID:
- 121468
- Report Number(s):
- EPRI-TR--105258-Vol.1; CONF-950332--Vol.1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Using sulfur from liquid redox processes as an oxidation inhibitor in wet FGD systems. Final report
Initial results of wet FGD testing at EPRI's High Sulfur Test Center
EPRI High-Sulfur Test Center: Wet flue gas desulfurization baseline limestone tests
Technical Report
·
Sun Oct 01 00:00:00 EDT 1995
·
OSTI ID:192559
Initial results of wet FGD testing at EPRI's High Sulfur Test Center
Conference
·
Thu Dec 31 23:00:00 EST 1987
· Proceedings of the American Power Conference; (USA)
·
OSTI ID:6959786
EPRI High-Sulfur Test Center: Wet flue gas desulfurization baseline limestone tests
Technical Report
·
Mon Oct 01 00:00:00 EDT 1990
·
OSTI ID:6494020