Basis of design

Flue Gas

The specification for flue gas assumed to be available for the 5000tpd PCC plant is provided in the following Appendix -Table A.

Appendix -Table A -Flue Gas Definition (100%) Design Case

Item Item Description Units Description / Value For Reference <Range>
(a) Location   Australia  
(b) Flue Gas Sources   Lignite fired  
(c) Flow Rate Nm3/h Wet 1072000  
(d) Pressure mBar (abs) 996 978 -1009
(e) Temperature °C 182 170 -200
(f) Composition      
  N2 + Ar vol% Wet 62 (balance) 50 -69
  CO2 vol% Wet 11 9.5 -13
  O2 vol% Wet 5 3.5 -7
  H2O vol% Wet 22 18 -30
  SOx ppmv Dry 197.4 151 -213
  SO2 ppmv Dry 196 150 -210
  SO3 ppmv Dry 1.4 1 -3
  NOx ppmv Dry 185 100 -300
  NO2 ppmv Dry N/A N/A
  NH3 ppmv Dry TBA TBA
  Dust g/m3 Dry 0.04 0 -0.08
  HCl ppmv Dry TBA TBA
  HF ppmv Dry TBA TBA

Source: MHI

The flue gas specification used by MHI to design the 5000tpd plant equipment sizing is shown in the following Appendix -Table B.

Appendix -Table B -Flue Gas Definition -Equipment Sizing

Item Item Description Units Description / Value
(a) Location   Australia
(b) Flue Gas Sources   Lignite fired boiler
(c) Flow Rate Nm3/h Wet 1,309,900
(d) Pressure mBar (abs) 978
(e) Temperature °C 200
(f) Composition    
  N2 + Ar vol% Wet 54 (balance)
  CO2 vol% Wet 9
  O2 vol% Wet 7
  H2O vol% Wet 30
  SOx ppmv Dry 503
  SO2 ppmv Dry 500
  SO3 ppmv Dry 3
  NOx ppmv Dry 300
  NO2 ppmv Dry N/A
  NH3 ppmv Dry TBA
  Dust (*) g/m3 Dry (STP) 0.08
  HCl ppmv Dry 124 (*)
  HF ppmv Dry 1.26 (*)

(*) Measurement result max in HRL report (No. HLC/2011/244) Emissions Sampling On Loy Yang A Unit 4, Flue 1 and 2; 27 - 30 June 2011 (High Load) 19 22 July 2011 (Low Load) “

Source: MHI

Steam

The specification for steam supplied to the PCC plant is provided by MHI for the modelling process.

Cooling Water

The specification for cooling water supplied to the PCC plant is provided in the following table Appendix -Table C.

Appendix -Table C -PCC Plant Cooling Water Condition

Item Description Units Value
(a) Supply Pressure kPaG 900
(b) Supply Temperature (max) °C 40
(c) Return Pressure kPa To CW drain system
(d) Return Temperature (max) °C 50 -51

Source: MHI

Power

The specification for power required for the PCC plant is provided in the following table Appendix Table D.

Appendix -Table D -PCC Plant Power Requirements

Item Description Units Value
(a) Motor more than 375 kW volts 6,600 (*)
    phase 3
    Hz 50
(b) Motor from 250 kW to 375 kW volts 6,600 or 415 (*)
    phase 3
    Hz 50
(c) Motor below 250 kW volts 415 (*)
    phase 3
    Hz 50

(*) To be confirmed by MHI

Source: MHI

Air (Instrument & Service)

Based on previous work at Loy Yang A there is insufficient existing air capacity at site and therefore it is assumed that the PCC plant will be designed with the necessary instrument and service air capacity.

Key PCC Outputs for PCC Base Case Plant

Condensate Return

The specification for condensate return from the PCC plant is provided by MHI for the modeling process.

Product CO2

The specification for product CO2 from the PCC plant is provided in the following table Appendix Table E.

Appendix -Table E -PCC Plant Product CO2

Item Description Units Value (Post Compressor)
(a) Capacity (CO2 100% Dry) tpd 5000
(b) Quality Required :    
  N2/Ar vol% Dry 1.2 (max)
  CO2 vol% Dry 98.0 (min)
  O2 vol% Dry 0.2
  H2O ppmv < 500
(c) Pressure kPa(g) 9,899
(d) Temperature °C 45

Source: MHI