Universität Stuttgart
Institute of Combustion and Power Plant Technology (IFK)
Pfaffenwaldring 23
70569 Stuttgart
Gebhard Waizmann – project leader / direct contact person / project coordinator
Telephone: +49 711 685-68939
E-mail: gebhard.waizmann@ifk.uni-stuttgart.de
Lukas Reiner
Telephone: +49 711 685-67802
E-mail: lukas.reiner@ifk.uni-stuttgart.de
Thomas Kempe – project leader / direct contact person / project coordinator
Telephone: +49 7138 988 110
E-mail: t.kempe@siegfried-kempe.de
Manuel Ribeiro
Telephone: +49 07138 988 130
E-mail: m.ribeiro@siegfried-kempe.de
Planned results:
Within the Bio2SNG research project, the CoMBPres process, an innovative gasification process for the thermochemical conversion of biogenic residues and waste materials to Bio-SNG, is to be further developed and extensively experimentally characterized and validated (SNG: Synthetic Natural Gas).
Through neat in-process utilization of the released methanation enthalpy and integration into the endothermic gasification reaction, conversion efficiencies up to 20 % higher than that of state of the art Bio-SNG processes can be achieved.
In the Bio2SNG project, comprehensive knowledge about the innovative CoMBPres process is to be obtained using a respective high-pressure test rig, and integral process parts are to be developed further. This also aims to facilitate the construction of a pilot plant in a subsequent project. The test rig is designed for a comprehensive variation of the process parameters and modes. Pressure ranges of up to 400 bar, temperature ranges between 600–900° C and residence times of a few seconds to several minutes can be examined. The gasification reactor can be operated in both, fixed bed and fluidized bed mode and enables the investigation of power-to-gas via electrical energy supply or H2 addition. In respect to the parameter variation, the innovative process is to be analyzed, especially regarding gas yield, composition and conversion efficiency.
The as yet open points towards the way of a first industrial CoMBPres process are to be addressed by developing, designing, manufacturing, testing and optimizing a specific apparatus for high pressure biomass feeding up to market-readiness, as well as the conception of high temperature product gas heat exchangers.
By process simulation, the experimental findings will be rounded off and the realization of a pilot plant in a subsequent project is pioneered.
CoMBPres is an innovative gasification process for the thermochemical conversion of biogenic residues into Bio-SNG (SNG: „Synthetic Natural Gas“). Neat process internal utilization of heat released from the methanation reaction, enabled through pressures, allows CoMBPres to achieve up to 20% higher conversion efficiency than state of the art Bio-SNG processes.
The research project’s main objective is the experimental validation of hithhirto theoretical findings for the CoMBPres gasification at realistic process conditions of up to 400 bar and 900°C (CoMBPres: „Combined Methanation and Biomass Gasification enabled through high Pressure”).
The experiments will be carried out with a for this specifically designed test rig for the high pressure water gasification of dry biomass.
IFK – Institute of Combustion and Power Plant Technology (University of Stuttgart)
KEMPE – Siegfried Kempe GmbH Apparate- und Maschinenbau
IFK – Institute of Combustion and Power Plant Technology (University of Stuttgart)
Experimental analysis of high pressure gasification of dry biomass at up to 400 bar and 900°C
KEMPE – Siegfried Kempe GmbH Apparate- und Maschinenbau
Development of a biomass feeding system against up to 400 bar