Atmospheric drop tube furnace BTS-VR

The combustion reactor consists of an electrically heated ceramic tube (0.2 m in diameter and a length of 2.5 m). In this tube, a certain temperature profile can be embossed on a combustion reaction by a bulk heating chain. The maximum electrical input is 58 kW. The heating is subdivided into five zones (2 x 12 and 3 x 8 SiC - heating elements). The maximum possible temperature is about 1500°C. The fuel is dosed volumetrically by a balance allowing fuel mass flows between 1 and 5 kg/h. A reduction fuel (gaseous or solid) can be feeded by another dosage. The residence time in the reduction zone can be varied between 0.5 and 6 seconds. For analysis, taking of solid and flue gas samples is obtained by a vertically shifted and temperature regultated lance. This can be done at any desired residence time.

This plant enables the exploration of emission reduction measures, the fouling and slagging behaviour of different fuels as well as characterisation of fuels by several other techniques.