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Ppt Flexiglas 16 4 2012 (Rl) Small

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

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Ppt Flexiglas 16 4 2012 (Rl) Small

  1. 1. High selective membranesFuture of (small scale) biogas upgrading R. Lems M.Sc. , R&D Manager DMT Environmental Technology Rlems@dmt-et.nl
  2. 2. Thema C- Biogas UtilizationFocus biogas upgrading + transportationDMT: Development small scale upgradingClean Miles: Development virtual pipelineEneco: Case developmentHanze: Research and Support
  3. 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. 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. 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. 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. 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. 8. Small scale upgrading with membranes CO2Biogas Green gas
  9. 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. 10. 60 HS Membranes
  11. 11. Multi stage
  12. 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. 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. 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. 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. 16. SAT test at Acrres
  17. 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. 18. Case Ameland
  19. 19. High selective membranes Future of (small scale) biogas upgrading R. Lems M.Sc. , R&D Manager DMT Environmental Technology Rlems@dmt-et.nl

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