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Chapter 3: Capture of CO2 169 table 3.15 Summary of new plant performance and CO2 capture cost based on current technology. New iGCC Plant Range Rep. New Hydrogen Plant Range Rep. Performance and Cost measures New NGCC Plant New PC Plant Range Rep. Range Rep. high Value - 846 773 (units for H2 Plant) Emission rate without capture (kgCO2 MWh−1) Emission rate with capture (kgCO2 MWh−1) Percent CO2 reduction 344 - 379 367 736 low kgCO2 GJ−1 (without capture) kgCO2 GJ−1 (with capture) % reduction/unit of product Capture plant efficiency (% LHV) % more energy input GJ−1 product Capital requirement without capture Capital requirement with capture per kWh (%) Plant efficiency with capture, LHV basis (% ) Capture energy requirement (% more input MWh−1) Total capital requirement without capture (US$ kW−1) Total capital requirement with capture (US$ kW−1) Percent increase in capital cost with capture (%) COE without capture (US$ MWh−1) COE with capture only (US$ MWh−1) Increase in COE with capture (US$ MWh−1) Percent increase in COE with capture (%) Cost of CO2 captured (US$/tCO2) Cost of CO2 avoided (US$/tCO2) Capture cost confidence level (see Table 3.6) 47 - 85 81 33 31 31 14 - 40 low high Value low high Value - 811 762 682 low high Value 78 - 174 137 40 - 66 52 88 86 50 48 22 16 724 568 1161 1261 998 1894 - 145 112 65 - 1521087-28 17 83 - 92 81 30 24 - 88 - 35 - 40 - 1486 1286 1169 - 2578 2096 1414 - 91 86 72-96 86 35 52-68 60 19 4-22 8 11 - - 25 515 - - 1565 1326 (No unique normalization for multi-product plants) 909 - - 2270 1825 64 - 100 76 50 37 44 - 74 63 - 52 46 19 - 66 37 -2 - 54 18 10.0 7.8 % increase in capital cost 31 - 43 - 12 - 72 54 24 17 43 62 18 - 86 73 - 34 27 41 54 9 - 61 47 6.5 - 7.5 - 0.3 - 13.3 9.1 3.3 1.3 H2 cost without capture (US$ GJ−1) H2 cost with capture (US$ GJ−1) Increase in H2 cost (US$ GJ−1) 37 - 33 - 37 -74 53 42 23 29 20 11 13 33 15 39 12 69 46 57 44 - 66 57 - 35 29 -51 41 - 55 33 - 32 20 -37 23 moderate moderate moderate moderate to high Notes: See Section 3.6.1 for calculation of energy requirement for capture plants. Values in italics were adjusted from original reported values as explained below.(a) Ranges and representative values are based on data from Tables 3.8, 3.11, 3.11 and 3.12. All costs in this table are for capture only and do not include the costs of CO2 transport and storage; see Chapter 8 for total CCS costs. (b) All PC and IGCC data are for bituminous coals only at costs of US$1.0-1.5 GJ−1 (LHV); all PC plants are supercritical units. (c) NGCC data based on natural gas prices of US$2.8-4.4 GJ−1 (LHV basis). (d) Cost are in constant US dollars (approx. year 2002 basis). (e) Power plant sizes range from approximately 400-800 MW without capture and 300-700 MW with capture. (f) Capacity factors vary from 65-85% for coal plants and 50-95% for gas plants (average for each = 80%). (g) Hydrogen plant feedstocks are natural gas (US$ 4.7-5.3 GJ−1) or coal (US$ 0.9-1.3 GJ−1); some plants in data set produce electricity in addition to hydrogen. (h) Fixed charge factors vary from 11-16% for power plants and 13-20% for hydrogen plants. (i) All costs include CO2 compression but not additional CO2 transport and storage costs (see Chapter 8 for full CCS costs). - 79 62 - 22 16 5 - 2 - 2 -5615 % increase in H2 cost US$/tCO2 captured US$/tCO2 avoided Confidence Level (see Table 3.6)PDF Image | CARBON DIOXIDE CAPTURE AND STORAGE
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