1. Institute of Chemical Engineering page 1 Achema 2012 Thermal Process Engineering Martin Miltner, Aleksander Makaruk, Ass.Prof. Michael Harasek mharasek@mail.zserv.tuwien.ac.at SHOCOTEC Short Time Contacting Process for the Desulphurisation of Renewable Gaseous Energy Carriers

2. Institute of Chemical Engineering page 2 Achema 2012 Thermal Process Engineering SHOCOTEC The project Funded by Austrian national grant (FFG) Duration: 24 months Started in January 2012 Partners: Institute of Chemical Technologies and Analytics, TU Vienna Axiom Angewandte Prozesstechnik GmbH QuantaRed Technologies GmbH

3. Institute of Chemical Engineering page 3 Achema 2012 Thermal Process Engineering SHOCOTEC Key facts  Develop a novel process for the desulphurisation of renewable gaseous energy carriers  Focus: biogas and producer gas from wood steam gasification  Based on already developed technology of chemical- oxidative scrubbing  Enhancement of process intensification, separation selectivity and plant economics  Development and application of advanced laser- spectroscopic analysis methods

4. Institute of Chemical Engineering page 4 Achema 2012 Thermal Process Engineering SHOCOTEC compression cooling (drying) reheating raw gas H 2 S scrubbing adsorption: removal of TOC, tar, … adsorption: removal residual H 2 S gaspermeation: CO 2 separation product gas biomethane (CH 4 rich) offgas (CO 2 rich) chemicals effluent Example: simplified flowsheet of biogas upgrading plant for the production of biomethane to be injected to the natural gas grid  Raw gas desulphurisation is integral part of gas upgrading  Especially crucial at elevated H 2 S-contents in raw gas or if high fluctuations in gas quality or quantity are to be expected

5. Institute of Chemical Engineering page 5 Achema 2012 Thermal Process Engineering SHOCOTEC Commercially available process: Chemical-oxidative scrubbing at biogas upgrading plant with natural gas grid injection at Bruck/Leitha, Austria Development towards: Short-time contacting process Highly compact and intensified Precise analysis of reactant concentration

6. Institute of Chemical Engineering page 6 Achema 2012 Thermal Process Engineering SHOCOTEC Visit us:  www.virtuellesbiogas.at www.virtuellesbiogas.at  bio.methan.at bio.methan.at  www.bio-methaneregions.at www.bio-methaneregions.at