Brandenburg University of Technology Cottbus - Senftenberg, Chair of Power Plant Technology www.b-tu.de/fg-kraftwerkstechnik Berlin | 9 Pressurized Steam Fluidized Bed Drying (PSFBD) of Lignite - State of the Development and selected Results of 15 Years R&D 9 th International Freiberg Conference on IGCC & XtL Technologies Berlin, 05.06.2018 Matthias Merzsch , Dr. Matthias Klatt, Prof. Hans Joachim Krautz Chair of Power Plant Technology, BTU Cottbus – Senftenberg Dr. Olaf Höhne LEAG - Lausitz Energie Kraftwerke AG
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Pressurized Steam Fluidized Bed Drying (PSFBD) of Lignite ... · Why to Pre-Dry Lignite in a (Pressurized) Steam Fluidized Bed? 4 Schematic diagram of the PSFBD process Increasing
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Brandenburg University of Technology Cottbus - Senftenberg, Chair of Power Plant Technology
www.b-tu.de/fg-kraftwerkstechnik Berlin | 9th Freiberg Conference | 05.06.2018
Pressurized Steam Fluidized Bed
Drying (PSFBD) of Lignite - State of
the Development and selected
Results of 15 Years R&D
9th International Freiberg Conference on IGCC & XtL Technologies
Berlin, 05.06.2018
Matthias Merzsch, Dr. Matthias Klatt, Prof. Hans Joachim Krautz
Chair of Power Plant Technology, BTU Cottbus – Senftenberg
Dr. Olaf Höhne
LEAG - Lausitz Energie Kraftwerke AG
Brandenburg University of Technology Cottbus - Senftenberg, Chair of Power Plant Technology
www.b-tu.de/fg-kraftwerkstechnik Berlin | 9th Freiberg Conference | 05.06.2018 2
Brief introduction
PSFBD Facilities
Development activities
Outlook
Table of Contents
Cottbus
Berlin
Brandenburg University of Technology Cottbus - Senftenberg, Chair of Power Plant Technology
www.b-tu.de/fg-kraftwerkstechnik Berlin | 9th Freiberg Conference | 05.06.2018
57%
3%
23%
17%
Lusatian processing coal (raw)
3
Why to Dry Lignite?
raw
w=19%
9.2
19
0
5
10
15
20
raw w=19%
9.2
19
05
101520
raw w=19%
Net calorific Value [MJ/kg]
Proximate analysis of Lusatian processing coal
2 Lusatian lignite briquettes
(w=19%, 1.15 kg)
evaporated water from
raw lignite (0.967 kg)
water remaining in
briquettes (0.219 kg)
Brandenburg University of Technology Cottbus - Senftenberg, Chair of Power Plant Technology
www.b-tu.de/fg-kraftwerkstechnik Berlin | 9th Freiberg Conference | 05.06.2018
Why to Pre-Dry Lignite in a (Pressurized) Steam Fluidized Bed?
4
Schematic diagram of the PSFBD process
Increasing the efficiency by up to 5 percentage
points in lignite fired power plants (44% 49%)
Drying with heating steam at low temperature in
place of hot flue gases
use of vaporized lignite water energy
more intensive heat & material transmission in
contrast to conventional tube dryers
(upgrading/processing facilities)
Up to 80% less energy consumption
Precondition for CCS technologies in power plants
Brandenburg University of Technology Cottbus - Senftenberg, Chair of Power Plant Technology
www.b-tu.de/fg-kraftwerkstechnik Berlin | 9th Freiberg Conference | 05.06.2018 5
Industrial Park Schwarze Pumpe – Lausitz Energie Kraftwerke AG
Raw lignite throughput < 550 kg/h
commissioning 2003
BTU Cottbus-Senftenberg – Chair of Power Plant Technology
PSFBD Facilities
Raw lignite throughput 8…10 t/h
commissioning 2008
Brandenburg University of Technology Cottbus - Senftenberg, Chair of Power Plant Technology
www.b-tu.de/fg-kraftwerkstechnik Berlin | 9th Freiberg Conference | 05.06.2018 6
PSFBD Facilities - development activities
rotary feeder
•Test of different Manufacturers and different sealing