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- W2051453637 abstract "The coal based polygeneration with CO2 capture (PG + CC) technology is expected as one of the possible options to mitigate CO2 emissions with low cost and low energy. This work assesses the cost reduction potential of PG + CC technology based on learning curve method, and finds out what factors and how they influence the cost curve. Results show that the unit investment of PG + CC can decrease to around 600–900$/kW from current 1500$/kW by means of capacity increment, technology further localization and plant efficiency upgrade. Localization and plant efficiency upgrade will play an important role in PG + CC cost reduction. 45%∼55% of the unit investment reduction originates from the capacity increment, 20%∼35% from technology localization, and 10%∼20% from plant efficiency upgrade. Compared with IGCC technology with CO2 capture (IGCC + CC), the unit investment of PG + CC is 25%∼30% lower. Compared with coal-pulverized supercritical plant with CO2 capture (PC + CC), in short term PG + CC is less economically competitive;In medium term, when the total installed capacity reaches several to ten GWs, the unit investment of PG + CC technology can compete with that of PC + CC and will be lower afterwards;In long term, the PG + CC technology will be more economically competitive than PC + CC. Moreover, PG + CC is more energy efficient than the other two technologies. The results indicate that the coal based PG + CC is more acceptable for China and may act as a significant part in CO2 capture technologies." @default.
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- W2051453637 date "2012-09-01" @default.
- W2051453637 modified "2023-09-26" @default.
- W2051453637 title "Evaluation of cost reduction potential for a coal based polygeneration system with CO 2 capture" @default.
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- W2051453637 doi "https://doi.org/10.1016/j.energy.2011.11.059" @default.
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