革新的ゼロエミッション石炭ガス化複合発電トータルシステムの経済性評価(<特集>CO_2排出から貯留までの総合システム)

概要

論文の詳細を見る
This paper provides processes and results of economic evaluation of advanced zero emission systems of Integrated Gasification of Combined Cycle (IGCC) with Carbon Capture and Sequestration (CCS). The evaluation was carried out by The Institute of Applied Energy (IAE) based on conceptual design activities under so called "Feasibility Study (FS)" project conducted by New Energy and Industrial Technology Development Organization (NEDO). Major findings are described as follows. i) The evaluation can be characterized as focusing on IGCC with detailed designed CCS systems, including varieties of recovered CO_2 transportation, compared to similar existing studies. ii) Share of transportation is the highest (some forty to sixty percent), separation & capture followed, among direct construction cost of CCS processes (consisting of separation & capture including liquefaction, transport, and sequestration). iii) CCS raises the cost of electricity at least by forty percent compared to without CCS; forty percent rise is similar to National Energy Technology Laboratory (NETL) studies. It could be concluded that CO_2 transportation by ships is one of promising means because of its flexibility to choose sources and sinks of CO_2.
2011-10-20