Exhaust Gas Emissions Comparison of Emissions and Limits

Legal Standard in Germany 17th BlmSchV Nitrogen Sulfur Carbon Hydrogen Hydro- Hydrogen oxides dioxide monoxide chloride carbons flouride Legal Standard in Germany 17th BlmSchV Emission Values, measured by T V-S dwest on May 26-27,1993, Demonstration Plant Ulm-Wiblingen Measurements by GfA in September 1990 Nitrogen Sulfur Carbon Hydrogen Hydro- Hydrogen oxides dioxide monoxide chloride carbons flouride With respect to the overall gas volume stream TWR emissions are around 30 less compared to...

Flue Gas Cleaning

Flue gas cleaning systems of refuse incineration plants normally are designed to fulfill the emission limits given in the respective national legislation. As these requirements can differ quite substantially from region to region and from country to country there is no general description for a gas cleaning concept. In Germany, due to very strict regulatory limits for emissions, the concept of the flue gas cleaning system is based on the proven wet scrubbing process. A Comparison of emissions...

Residue Treatment

The solid residues are removed from the conversion drum at approximately 450 C. After separation of a coarse fraction which chiefly comprises ferrous metals, non-ferrous metals and inerts (glass, stones and grit) the fine fraction (crushed to a particle size smaller 1 mm) is stored temporarily in a dust silo. This fine fraction contains around 99 of the solid carbon from the conversion process. It is pneumatically conveyed to the combustion chamber and combusted together with the process gas...

Conversion

Shredders mechanically reduce the size of incoming waste to around 150 mm edge length. Waste leaving the shredders is directly falling into the fine waste bunker. The mixed and shredded waste (sewage sludge with a 35 dry solids content can be up to approximately 30 by weight) is transported to the conversion drum - one of the key components of the process - via a charging hopper and a subsequent screw feeder. The task of this charging screw is to provide for air tight sealing of the drum at the...

Comparison of the Composition of Granular Slag and Basalt Lava Rock

Polyolefin Pour Les Nuls

I Soua -Jtnqtuunq m Attlttw U tor BMOttftrtrwanung- fWritafai ot Fteidu Rscydtig W sta Report by Dp.-tng. H nul Piper, Nikdaui Sorg GmCH amp Co KG, Jan 26,1991 h N mtorg I Soua -Jtnqtuunq m Attlttw U tor BMOttftrtrwanung- fWritafai ot Fteidu Rscydtig W sta Report by Dp.-tng. H nul Piper, Nikdaui Sorg GmCH amp Co KG, Jan 26,1991 h N mtorg The thermal energy contained in the flue gas is used for generating steam at 400 C and 40 bar in the heat recovery steam generator. The steam is subsequently...

Market Situation

Germany's first commercial-scale Thermal Waste Recycling plant with a yearly capacity of 100 000 tons is under construction in F rth near Nuremberg Germany . Commissioning of the plant is scheduled for early 1997. Positive decisions to go for the TWR-processes have been taken by other authorities in Germany and in Switzerland. Licensind agreements have been concluded with Mitsui Engineering and Shipbuilding and with Takuma. Both of them are major Japanese companies in the waste sector.

Conclusion

The Thermal Waste Recycling technology utilizes Siemens' decades of experience in plant engineering and power plant industry. In more than ten years of growing experience the process and the key components have undergone testing to the point of commercial maturity under continuous operating conditions in two German demonstration plants. The stepwise technical development of this process is based on proven systems used in conventional power engineering and waste incineration technology. Due to a...

Ecological benefits as key for market success

In fact it is chiefly the ecological advantages which mark the difference between TWR and normal waste incinerators. From the ecological point of view the Thermal Waste Recycling technology is the most advanced process available on the market. With the innovative combination of conversion and high-temperature combustion refuse can be transferred into electricity, reusable secondary raw materials like ferrous metal and aluminum as well as inerts and granulated slag for construction industry....

Introduction

In our days we are looking back at a history of more than one century of thermal waste treatment in Europe. It was in the year 1875 when a British engineer - Alfred Fryer - constructed the world s first large scale waste incinerator in Leeds in England. Fryer s process used the energy contained in the waste for an exothermal reaction. No additional fuel was needed. The Senat of Hamburg Germany in 1889 decided to learn from the neighbours on the British island. The fast growing town was well...