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June 10 th 2008

IFP project Biogas upgrading. June 10 th 2008. Agenda. Presentation Questions Project evaluation DMT & projectgroup only. http://students.chem.tue.nl/ifp24. Biogas upgrading Comparing different techniques. Jos de Hullu Jenny Maassen Paul van Meel Siamak Shazad Jessica Vaessen

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June 10 th 2008

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  1. IFP project Biogas upgrading June 10th 2008

  2. Agenda Presentation Questions Project evaluation DMT & projectgroup only

  3. http://students.chem.tue.nl/ifp24 Biogas upgradingComparing different techniques Jos de Hullu Jenny Maassen Paul van Meel Siamak Shazad Jessica Vaessen Tutor: Laura Bini Project coordinator: Jetse Reijenga Client: Robert Lems, DMT

  4. Outline Introduction Upgrading techniques Process Cost estimation Waste streams Ease of operation Comparison Conclusions Recommendations Questions

  5. Introduction Biogas Demands Upgrading

  6. Upgrading techniques • Chemical absorption • High pressure water scrubbing • Pressure swing adsorption • Cryogenic separation • Membrane separation Process Input/output Cost estimation Investment costs Running costs Waste streams Ease of operation

  7. Chemical absorption (I) Absorption of CO2

  8. Chemical absorption (II) Combined output: 137 Nm3/h 90% yield 98% purity Absorption of H2S

  9. Chemical absorption (III) Cost estimation

  10. High pressure water scrubbing (I) Output: 144 Nm3/h 94 % yield 98 % purity

  11. High pressure water scrubbing (II) Cost estimation

  12. Pressure swing adsorption (I) Output: 139 Nm3/h 91 % yield 98 % purity

  13. Pressure swing adsorption (II) Cost estimation

  14. Cryogenic separation (I) Output: 161 Nm3/h 98 % yield 91 % purity

  15. Cryogenic separation (II) Cost estimation

  16. Membrane separation (I) Output: 130 Nm3/h 78 % yield 90 % purity

  17. Membrane separation (II) Cost estimation

  18. Outline Introduction Upgrading techniques Process Cost estimation Waste streams Ease of operation Comparison Conclusions Recommendations Questions

  19. Comparison

  20. Conclusions High pressure water scrubbing cheapest option HPWS & membrane easy to operate and no chemicals needed Membrane separation is promising Each technique has its advantages depending on the goal HPWS best overall performance: - high yield and purity - compact setup - no chemicals - only one waste stream

  21. Recommendations Investigate cost of waste treatment Calculate CO2 footprint Investigate different types of catalysts and membranes Optimize cryogenic separation

  22. Thank you for your attention Questions ?

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