An optimized concept for flue gas cleaning downstream of MWCs using sodium tetrasulfide for mercury removal
In Germany and other central European countries, new emission standards for refuse incineration plants became effective in 1989/90. In recent years the operators of incinerating plants in Germany demanded higher removal emission efficiency than required by law in order to obtain local permits. In the course of the procurement process, complex flue gas cleaning systems were approved and built. As a result, the costs for air pollution control systems exceeded the costs of the refuse combustion system (stoker plus boiler) which has been reflected in the constantly climbing disposal costs. Not all of the increased disposal costs have been able to be passed along to the market. Economic pressure has led to a search for simple solutions and low-cost flue gas cleaning systems which correspond to the legal and contractual limits. A new processes was developed by L. and C. Steinmueller GmbH (Steinmueller) using sodium tetrasulfide (Na{sub 2}S{sub 4}) as a additive for the emission control of mercury. This paper will present an overview of the general application of this new technology in the waste-to-energy field. The efficiency of the reduction of mercury, and serviceability and the simple handling of this new technology will be shown by results of plants which are in operating. For a conclusion, an outlook is provided into future applications of this technology over the waste-to-energy field.
- Research Organization:
- L. and C. Steinmueller GmbH, Gummersbach (DE)
- OSTI ID:
- 20017382
- Resource Relation:
- Conference: 6th Annual Waste-to-Energy Conference, Miami Beach, FL (US), 05/11/1998--05/13/1998; Other Information: PBD: 1998; Related Information: In: 6th annual waste-to-energy conference, 328 pages.
- Country of Publication:
- United States
- Language:
- English
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