1. Turbomachinery in Biofuel Production
Doctoral student : Martin Görling
Supervisors:
Prof Mats Westermark
Prof Krister Sjöström

2. The main objectives of the project are :
To perform a techno-economic feasibility study of the
integration of turbo-machinery into different promising
bio-fuel production processes.
To improve the technological knowledge in the field of
turbo-machinery and bio-fuel production

3. SNG – Production Process

4. Turbomachinery in Biofuel Production
Gas Turbines
Steam Cycles

5. Gas Turbines Integration for syngas combustion Hybrid combined cycle
Optimized for natural gas.
Problems with syngas combustion in modern low NOx burners.
Limited resources of biomass, scale problems.
Integration for syngas combustion
Input:
Natural gas for gas turbine
Biomass for fuel and heat (excess heat from fuel prod.)
Output: Biofuel, Electricity, (Heat)
Hybrid combined cycle

6. Hybrid Combined Cycle

7. Hybrid Plant Case Study
Methanol Plant
Biomass input (MWHHV)
384.2
Electricity consumption (MW)
27.4
Excess heat (MW)
83.7
Methanol produced (MWHHV)
248.4

8. Reference Case
Hybrid Cycle

9. Steam Cycles Large amounts of excess heat Minimize steam consumption
Indirect/hydrogen gasification
Humidification
Steam turbine power production is a given complement in biofuel production systems

10. SNG production
Internal power prod. 5MW

11. Available steam: 33MW

12. Humidification – Minimizing steam pressure
Producing vapor below boiling temperature
Humid air
Dry air (

13. Humidification – Minimizing steam pressure
Efficient use of latent (condensation) energy
Possibility to lower steam data
More efficient than standard HRSG units
Increased power production

14. Future Work Finalizing the Humidification Study
Final report – Licentiate Phase
Suggestions for further studies