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Presentation about the possibilities of using high selective membranes for biogas upgrading.

Presentation about the possibilities of using high selective membranes for biogas upgrading.

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  • 1. High selective membranesFuture of (small scale) biogas upgrading R. Lems M.Sc. , R&D Manager DMT Environmental Technology Rlems@dmt-et.nl
  • 2. Thema C- Biogas UtilizationFocus biogas upgrading + transportationDMT: Development small scale upgradingClean Miles: Development virtual pipelineEneco: Case developmentHanze: Research and Support
  • 3. Substance %Methane, CH4 45-75Carbon dioxide, CO2 25-45Carbon monoxide, CO 0-0,3Nitrogen, N2 1-15Water, H2O SaturatedHydrogen sulfide, H2S 0,1-0,5Oxygen, O2 tracesSiloxane, R2SiO
  • 4. Choice for (large scale )biogas upgrading? PWS: Pressurized Water Scrubbing + Low investment and operational cost + Low methane slip 0.8 % + High energy efficiency >96% + Proven technology + No chemicals - Complexity
  • 5. Choice for small scale biogas upgrading? Importance of •Energy efficiency ? =>Biogas utilization and running hours. •Flow variations ? =>Max flow is 200m3/hr •Available manpower => None •Methane emissions ?
  • 6. Choice for small scale biogas upgrading? MS: Membrane Separation + Compact + Simple on/off + Cheap + 100% biogas utilization/ flexibility + Highest operational up time + 2 times per year human interaction. + CO2 reuse - High methane slip (conventional)
  • 7. Why small scale biogas upgrading?>90% of possible biogas production sites are <200m3/hr.60-80% of possible biogas capacity is from small scale site. 50-200Nm3 biogas equals 35-150 l diesel => 170.000-1.450.000 euro/a
  • 8. Small scale upgrading with membranes CO2Biogas Green gas
  • 9. Membranes separation J= (k . D . Δp ) / l J= Flux k= Solubility of CO2 in the polymer D= Diffusion coefficient of CO2 through the polymer Δp = The pressure difference over the membrane l = The thickness of the membrane
  • 10. 60 HS Membranes
  • 11. Multi stage
  • 12. 200,0% 180,0% 160,0% Competing 140,0%Recylce Stream % membranes 120,0% 100,0% 80,0% High Selective 60,0% membranes 40,0% 20,0% 0,0% 10 20 30 40 50 60 70 Membrane selectivity CO2/CH4
  • 13. Biogas:CH4 (53,3%) 35% recycleCO2 (46%) MixerH2O (0,1%) RecycleN2 (0,5%)O2 (0,1%) Stream Membrane Cascade for upgrading Biomethane OFF Gas CH4 > 97% < 0.5% CH4
  • 14. Choice for (small scale) biogas upgrading? MS: Membrane Separation + Compact + Simple on/off + Cheap + 100% biogas utilization + Highest operational up time + 2 times per year human interaction. + CO2 reuse + Low methane slip ( High selective )
  • 15. DMT Carborex ® MS+ 0,2 kWh/ Nm3+ 0,3% CH4 slip+ Energy efficiency > 98%+ Operation reliability >98%+ Plug and play+ Containerized+ Low in CAPEX and OPEX- Price linear with membranes
  • 16. SAT test at Acrres
  • 17. Virtual pipeline• For remote places and low flows (where pipeline are too expensive)• Easy transport and utilization of gas @ 250 bar• Transport of biogas and/ or greengas• Alternative for local use of CBG (mobile CHP/ holiday houses)
  • 18. Case Ameland
  • 19. High selective membranes Future of (small scale) biogas upgrading R. Lems M.Sc. , R&D Manager DMT Environmental Technology Rlems@dmt-et.nl