Küttner
Feasibility study for the replacement of one old Cowper with a PH
(235,000 m3STP/h, 1200°C) for a German steel works
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Siemens VAI
With the Jet Process, SIEMENS Metals Technologies offers a solution for operating converters with up to 100 percent scrap and sponge iron. This enables operators of melt shops to respond to raw material supply bottlenecks and exploit short-term price fluctuations. The solution consists of a bottom-blowing converter that makes it possible to blow in oxygen, lime and coal through bottom tuyeres and of a hot blast top lance for feeding additional energy into the steel bath. The Jet Process can either be implemented as a new installation or retrofitted in existing plants in a modular fashion...
A pebble heater with an energy efficiency of more than 95 percent is used to create the hot blast.
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HiTES – High Temperature Energy Storage
HiTES is a kind of Carnot-Battery, i.e. it is a system for storing electricity over the thermal storage. Electricity is transformed in a high temperature heat (1100°C). If there is a need, that heat is used for electricity generation in a simple gas turbine (i.e. hot air turbine), combined with a system of low temperature (550°C) Pebble-Heaters.
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BtP – Biomass to Power
A very detailed feasibility study for a Biomass CHP has been evaluated. The system is consisted of an updraft biomass gasifier, a system of Pebble-Heaters and a hot air turbine.
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BtL – Biomas to Liquide
A comprehensive medium-scale facility has been erected to test the possibility to produce the second generation BtL through the biomass gasification and a Fischer-Tropsch reactor. For the allothermal gasification, a highly preheated steam (1200°C) has been used in order to get sufficiently high H2/CO ratio in the synthesis gas. The values up to 5:1 have been reached.
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Saarstahl – POSCO
A Pebble-Heater for 40,000 m3STP/h and 1200°C has been erected and tested at Saarstahl/Germany. Later it was dismantled and transported to POSCO/South Korea. There it was used in the scope of a project for the CO post combustion in an OBM–converter, in order to increase the scrap rate.
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MEFOS facility
LKAB and MEFOS at Luleå / Sweden have erected a test Blast Furnace. They have decided to use a system of 2 Pebble- Heaters as a most innovative and cost effective way for the hot blast supply. Later, in the scope of ULCOS project, those Pebble-Heaters have been used for top gas recycling and H2 preheating to 1200°C.
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Dillinger Hüttenwerke
The test facility on a sinter plant for the off-gas cleaning through thermal oxidation ( 10,000 m3STP/h, 800°C)
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Biomass CHP plant
Test facility built at ATZ-EVUS together with Siemens, in the scope of SiPeb development.
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Thermal Oxidizer in Ansbach
Based on the Pebble-Heater technology, thermal oxidizers for 800-900°C have been developed.
The first unit for 30,000 m3STP/h was erected at the brick factory at Ansbach/Germany. Later, several similar facilities (from 16,000 till 45,000 m3STP/h) have been built in Germany and Austria.
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PH twinns
A system of very small and compact Pebble-Heaters for the use with regenerative burners, has been developed. Simultaneously, a new system of FDV (fluid dynamic valves) has been patented and tested, in order to avoid expensive and water cooled hot blast valves.
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Pilot facility PH104
PH104 was the first pilot facility where the new patented concept of a Pebble-Heater with the radial fluid flow was tested. The hot blast capacity was 10,000 m3STP/h and temperature even above 1300°C were tested. It was used for many years as a reliable hot blast supply for a 10 t OBM test convertor.
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