Preparation of synthetic fuels

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Pakistan future relience on Thar coal for Synthetic Fuel.

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Preparation of synthetic fuels

  1. 1. Preparation of Synthetic Fuels by Underground Coal Gasification Pakistan Engineering Students Festival Society of Polymer and Petrochemical Engineers NED university Karachi
  2. 2. Faculty Introduction Supervisor: Engr. Abdul Waheed Bhutto Chairman Department of Chemical Engineering Dawood University of Engineering and Technology, Karachi. Group Representor: Muhammad Zeeshan Members: Syed Saqib Ali Zaidi Muhammad Tajmeel Feroze Muhammad Ali Memon Muhammad Yousuf Memon Dawood University of Engineering and Technology Karachi
  3. 3. Pakistan Oil Consumption • • • • Pakistan consumes 371 thousand Bbl. of Oil per day. 35% of Pakistan's energy Demand provides by Oil. 90 % is utilized for Transportation. Its Demand is Growing day by day due to Rapid Growth in vehicle Ownership.
  4. 4. Oil Resources • Pakistan has 310 millions Bbl. proven oil reserves. • Currently produces 67 thousand BPD. • Pakistan's oil and gas reserves are not enough to achieve self sufficiency in this sector. • In oil sector Pakistan depends on foreign sources of oil and Imports 80 % oil of its consumption.
  5. 5. Alternative Liquid Fuels In current conditions Pakistan need to look forward alternate oil sources. Alternate liquid fuels can be produced from: Biomass Natural Gas Coal
  6. 6. Pakistan Coal Reserves KPK 91 (million tons) AJK 09 (million tons) BALOCHISTAN 217 (million tons) PUNJAB 235 (million tons) SINDH 184,623 (million tons)
  7. 7. Coal Potential • Coal reserves of Pakistan can help balance his future dependence of Oil. • Thar coal contains 175 billion tons of Lignite B to sub-bituminous A, which is most suitable for UCG. • High quality sulfur free gasoline and low mass olefins can be prepared by Thar coal. Chemical Analysis of Thar coal
  8. 8. Coal To Liquid Conversion
  9. 9. Process Underground Gasification Synthetic gas Cleaning & Conditioning Fischer – Tropsch Synthesis Final Product Refining
  10. 10. Economical Strength • Capacity (10,000 bpd @ 85% availability) • Capital cost (750 million dollars) • Operating + Raw material cost (123 million dollars per year) • NPV (116 million dollars @ 20% discount rates) • Consumer profit (~ 500 dollars per year @ average mile age)
  11. 11. Conclusion In the current situation of Pakistan as it is facing energy crisis in power sector and depends on foreign sources of oil while having vast amount of coal in its reserves. This technology is a viable option to offset its future dependence on foreign sources of oil and gas.
  12. 12. Weighted Average Chemical Analyses of Thar Coal As Received values (%) Heating Values (BTU/lb) Blocks Moisture I II III III-B IV V VI VII VII Ash Volatile Matter Fixed Carbon Sulphur As Rcvd Dry 43.13 6.53 30.11 20.11 0.92 6,398 10,461 48.89 5.21 26.55 19.37 1..05 5,780 11,353 45.41 6.14 28.51 19.56 1.12 5,875 10,880 47.72 9.30 24.49 16.79 1.15 4,808 - 43.24 6.56 29.04 21.13 1.20 5,971 10,723 36.82 8.92 38.24 28.22 1.20 4,748 - 38.32 7.62 36.22 30.13 1.52 10,514 - 48.27 8.03 25.30 19.56 1.16 5,441 - 49.57 7.78 24.32 18.10 1.44 5,302 -
  13. 13. Underground Coal Gasification • Drilling Technology: Controlled Retractable Injection Point(CRIP) • Process: Two Phase(Steam & Air) gasification • Product: Water gas (CO+H2)
  14. 14. Underground Coal Gasification
  15. 15. Synthetic Gas Cleaning & Conditioning • Cleaning: (Removal of steam, solid particles, sulfur and nitrogen compounds and CO2) • Conditioning: (Maintain H2:CO ratio for fischer tropsch process. A H2:CO > 2 is ideal)
  16. 16. Fischer Tropsch • Technology (Iron based High Temperature Fischer Tropsch) • Reactor (Fixed Fluidized Bed) • Catalyst (Fused Iron) • Products (Gasoline with low mass Olefins)
  17. 17. Refining HTFT reactor mixture contains hydrocarbons ranging C1 to C20 which may be separate out by simple atmospheric pressure fractional distillation.
  18. 18. Products • Gasoline • Low mass Olefins • Fischer Tropsch Wax

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