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

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Temperature °C 260 Pressure bar 38 Flow rate kg/s 126.8 Reaction in Gas Turbine: Air 430 16.1 x Purge Gas 38 26.6 60.39 Flue Gas 1350 15.6 60.39+x Figure E.3: Mass and energy flow diagram for gas turbine combustor with FTD purge gas. Energy from Purge Gas 538.90 MWe From energy balance we got: x= 232.75 kg/s Gas Turbine Generate Electricity Flue Gas Mass flow rate kg/s 293.14 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 102
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 210.55 Power needed to compress air Mass flow rate of air kg/s 273.82 Compressor Efficiency 0.89 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 Specific Heat (cp) b kJ/kgK 1.072 Enthalpy MJ/kg 0.43952 Power needed to compress air MWe 68.73 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 141.82 4. Power Generation from Steam Turbine Property of MP Steam a Pressure bar 13 Temperature °C 195 Enthalpy MJ/kg 2.7895 103
Page 1 and 2:
Novel Design of an Integrated Pulp
Page 3 and 4:
Table of Contents List of Figures .
Page 5 and 6:
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
Page 27 and 28:
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
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Table 19: Ash analysis of Pittsburg
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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 and 100: Combustion 2CO+O2→ 2CO2 + 566 kJ/
Page 101: Specific Heat (cp) b kJ/kgK 1.072 E
Page 105: Appendix F: Concept Map 105
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