Novel Design of an Integrated Pulp Mill Biorefinery for the ...

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Gas Turbine Generate Electricity Flue Gas Mass flow rate kg/s 295.92 H2O Vapor mass percent % 0.2488 Temperature °C 1350 Pressure bar 15.6 Enthalpy MJ/kg 5.406 Specific Heat (cp) kJ/kgK 2.521 H2O Steam mass percent % 0.2488 Temperature °C 610 Pressure bar 1.05 Enthalpy MJ/kg 3.7264 Specific Heat of Steam (cp) kJ/kgK 2.212 CO2 mass percent % 0.7512 Temperature °C 1350 Pressure bar 15.6 Enthalpy MJ/kg 1.9209 Specific Heat (cp) kJ/kgK 1.314 Temperature °C 610 Pressure bar 1.05 Enthalpy MJ/kg 0.8836 Specific Heat (cp) kJ/kgK 1.203 Turbine Efficiency 0.6 Power Generated by Flue Gas MWe 212.55 Power needed to compress air Mass flow rate of air kg/s 290.26 Compressor Efficiency 0.6 Assume it is dry air, below 100C, cp a kJ/kgC 1.06 Temperature °C 20 Pressure bar 1.01 Enthalpy MJ/kg 0.0212 Temperature °C 430 Pressure bar 16.1 100
Specific Heat (cp) b kJ/kgK 1.072 Enthalpy MJ/kg 0.43952 Power needed to compress air MWe 72.85 a. http://www.engineeringtoolbox.com/enthalpy-moist-air-d_683.html b. http://www.engineeringtoolbox.com/air-properties-d_156.html Power from Gas Turbine MWe 139.70 3. Power Generation from FT Purge Gas Gas Turbine Calculation Turbine polytropic efficiency 0.6 Compressed air flow rate kg/s 232.75 Air mass flow kg/s 273.82 Purge gas from DME Fuel Synthesis kg/s 60.39 Exhaust mass flow kg/s 334.21 Flue gas mass flow rate kg/s 293.14 CO2 generated kg/s 220.21 Property of Purge Gas from FT Synthesis Syngas Syngas flow rate kg/s 123 CO:H2 0.8096 Energy MW 1437.8 Reactor Efficiency % 50.5 H2 mole percent % 37 CO mole percent % 45.7 Energy MW 492.90 Temperature °C 38 Pressure bar 26.6 Flow rate kg/s 60.39 C1-C4 Energy MW 46.00 Temperature °C 38.00 Pressure bar 38.00 Flow rate kg/s 0.60 Purge Steam Energy MW 360.9 101
Page 1 and 2:
Novel Design of an Integrated Pulp
Page 3 and 4:
Table of Contents List of Figures .
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List of Figures Figure 1: Price of
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1 Introduction The global transport
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2 Background 2.1 Pulp Mill Backgrou
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2.1.2.2 Chemical Pulping The most c
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sodium sulfide and sodium carbonate
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process described in the section on
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2.2.1 Low-Temperature Black Liquor
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Figure 2: Chemrec gasification proc
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Table 3: Average syngas composition
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DME than that could be obtained fro
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U.S. Patent[58] and European Patent
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Figure 4: Topsøe gas phase technol
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DME Workshop, Japan (Sept. 7, 2000)
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2.4.1. Fischer-Tropsch Reactors The
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kpH 2 pCO Cobalt rate = 2 (2.4.1) (
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invention of Fischer-Tropsch in the
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Table 7: hydrocarbons and associate
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3 Process Design 3.1 Pulp Mill 3.1.
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carbonate is fired in a lime kiln t
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lost and the pulp that provides tha
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Table 16: General operating paramet
Page 47 and 48:
Table 19: Ash analysis of Pittsburg
Page 49 and 50: Table 22: Experimental syngas compo
Page 51 and 52: 3.2.5 Process Options and Flexibili
Page 53 and 54: Nitrogen compounds Nitrogen from th
Page 55 and 56: 3.3.2.3 Reactors A single-step gas
Page 57 and 58: Table 27: FT-diesel fuel synthesis
Page 59 and 60: 3.5.2 Power Generation Process Desi
Page 61 and 62: Figure 21: Schematic of biorefinery
Page 63 and 64: ar) reacts with the fuel in the com
Page 65 and 66: Figure 25showed the detailed energy
Page 67 and 68: 4. Design Summary The DME design an
Page 69 and 70: Figure 27: Mass and energy flow of
Page 71 and 72: References 1. Åhman, M., G. Modig,
Page 73 and 74: 42. R.A. Peascoe, J.R.K., C.R. Hubb
Page 75 and 76: PerformanceSimulation. 2006, Prince
Page 77 and 78: Appendix Appendix A MP Steam Demand
Page 79 and 80: Appendix B: Composite Fuel Blend to
Page 81 and 82: DME Density = 0.67 kg/L (at 20 °C)
Page 83 and 84: Air Separation Unit Requirements Ba
Page 85 and 86: Purge gas: CO conversion is 60%, 40
Page 87 and 88: Appendix D: FTD Synthesis Two diffe
Page 89 and 90: Table D.3: The hydrocarbon product
Page 91 and 92: Figure D.3 Mass and energy balance
Page 93 and 94: Table D.3 Mass and energy balance o
Page 95 and 96: Appendix E: Heat and Power Generati
Page 97 and 98: Energy H2O absorbed MW 46.71 Using
Page 99: Combustion 2CO+O2→ 2CO2 + 566 kJ/
Page 103 and 104: Specific Heat of Steam (cp) kJ/kgK
Page 105: Appendix F: Concept Map 105
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