中国电机工程学报
中國電機工程學報
중국전궤공정학보
ZHONGGUO DIANJI GONGCHENG XUEBAO
2014年
35期
6286-6295
,共10页
循环流化床(CFB)%化学链燃烧(CLC)%技术经济分析%发电成本%CO2减排成本%CO2捕捉成本%灵敏性分析
循環流化床(CFB)%化學鏈燃燒(CLC)%技術經濟分析%髮電成本%CO2減排成本%CO2捕捉成本%靈敏性分析
순배류화상(CFB)%화학련연소(CLC)%기술경제분석%발전성본%CO2감배성본%CO2포착성본%령민성분석
circulating fluid bed (CFB)%chemical looping combustion%techno-economic evaluation%cost of electricity%CO2 avoidance cost%CO2 capture cost%sensitivity analysis
分别对2×300 MW的循环流化床(CFB)燃煤机组和在CFB 机组基础上改造的化学链燃烧(chemical looping combustion，CLC)燃煤机组的技术经济性能进行了计算分析。结果显示，与CFB机组相比，使用天然铁矿石作为氧载体的CLC机组的发电成本增加了约19.69%，CO2減排成本和CO2捕捉成本分別为72.15和69.78￥/t。并对结果进行了灵敏性分析，发现燃料成本是对发电成本影响最大的参数，而煤种对发电成本的影响相对较小。利用化工制备的Ni-、Cu-、Fe-基氧载体，CLC 电站的各个成本指标均将明显增加，但是随着氧载体使用寿命的延长或者利用循环烟气作为流化气，CLC机组各个成本指标均将降低。
分彆對2×300 MW的循環流化床(CFB)燃煤機組和在CFB 機組基礎上改造的化學鏈燃燒(chemical looping combustion，CLC)燃煤機組的技術經濟性能進行瞭計算分析。結果顯示，與CFB機組相比，使用天然鐵礦石作為氧載體的CLC機組的髮電成本增加瞭約19.69%，CO2減排成本和CO2捕捉成本分別為72.15和69.78￥/t。併對結果進行瞭靈敏性分析，髮現燃料成本是對髮電成本影響最大的參數，而煤種對髮電成本的影響相對較小。利用化工製備的Ni-、Cu-、Fe-基氧載體，CLC 電站的各箇成本指標均將明顯增加，但是隨著氧載體使用壽命的延長或者利用循環煙氣作為流化氣，CLC機組各箇成本指標均將降低。
분별대2×300 MW적순배류화상(CFB)연매궤조화재CFB 궤조기출상개조적화학련연소(chemical looping combustion，CLC)연매궤조적기술경제성능진행료계산분석。결과현시，여CFB궤조상비，사용천연철광석작위양재체적CLC궤조적발전성본증가료약19.69%，CO2감배성본화CO2포착성본분별위72.15화69.78￥/t。병대결과진행료령민성분석，발현연료성본시대발전성본영향최대적삼수，이매충대발전성본적영향상대교소。이용화공제비적Ni-、Cu-、Fe-기양재체，CLC 전참적각개성본지표균장명현증가，단시수착양재체사용수명적연장혹자이용순배연기작위류화기，CLC궤조각개성본지표균장강저。
A detailed techno-economic evaluation study was performed on the typical 2 × 300 MW subcritical power plants in China, as normal circulating fluidization bed (CFB) and chemical looping combustion (CLC)-based coal-fired options. The results show that the cost of electricity (COE) of CLC plant using natural iron ore as oxygen carriers is 19.69%higher than that of normal CFB power plant. The CO2 avoidance costs (CAC) and CO2 capture costs (CCC) are 72.15 and 69.78￥/t respectively. Furthermore, a sensitivity analysis on key parameters such as coal type, coal price, CFB unit price and oxygen carrier type, etc. was conducted. The results showed that COE is most correlated with coal price because fuel costs contribute about 66%of COE of CLC plant. But the influence of different coal types on the economic parameters of the CLC technology is not obvious;The COE, CAC and CCC increase significantly if using Ni-, Cu-, and Fe-based oxygen carrier prepared by industrial granulation technology. The economic cost will decrease if increasing oxygen carrier lifetime and using the circulating flue gas as fluidizing gas.
