首頁(yè) > 資料下載 > 高效煤炭技術(shù)與2C情景的不相容性The incompatibility of highefficient coal technology with 2C scenarios

高效煤炭技術(shù)與2C情景的不相容性The incompatibility of highefficient coal technology with 2C scenarios

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更新時(shí)間：2021-09-16
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2015年12月，各國(guó)政府在巴黎承諾將全球平均氣溫升幅控制在遠(yuǎn)低于工業(yè)化前水平2攝氏度以?xún)?nèi)，并努力將其控制在1.5攝氏度以下。為了實(shí)現(xiàn)這些承諾，世界需要轉(zhuǎn)向低碳經(jīng)濟(jì)。根據(jù)國(guó)際氣候變化專(zhuān)門(mén)委員會(huì)(IPCC)對(duì)排放情景的評(píng)估，這意味著到2050年全球電力部門(mén)需要脫碳。高效低排放(HELE)燃煤電廠(chǎng)的部署被煤炭行業(yè)和一些政府視為一種對(duì)氣候友好的技術(shù)，它們聲稱(chēng)，如果與另一種獨(dú)立的技術(shù)——碳捕獲與封存(CCS)相結(jié)合，最終將導(dǎo)致零排放甚至負(fù)排放。燃煤發(fā)電的HELE技術(shù)可以將目前運(yùn)行的燃煤電廠(chǎng)的排放量從1000 gCO2/kWh減少到670 gCO2/kWh，而燃?xì)廨啓C(jī)的排放量為350-490 gCO2/kWh，風(fēng)能和太陽(yáng)能的直接排放量為0 gCO2/kWh。

In December 2015, international governments in Paris pledged to limit global average temperature rise to well below 2C above pre-industrial levels, and to pursue efforts to keep it under 1.5C. In order to meet these commitments, the world needs to move towards a low-carbon economy. According to the International Panel on Climate Change’s (IPCC) assessment of emissions scenarios, this implies that by 2050 the global electricity sector needs to be decarbonised. The deployment of high-efficient low-emission (HELE) coal-fired power plants is presented by the coal industry and some governments as a technology that is climate friendly, claiming that if combined with carbon capture and storage (CCS) – another, separate technology – it would ultimately lead to zero and even negative emissions. HELE technologies for coal-fired power generation could reduce emissions from over 1,000 gCO2/kWh for current coal plants in operation, to 670 gCO2/kWh for future most efficient coal plants – to be compared with 350-490 gCO2/kWh for gas turbines or 0 gCO2/kWh direct emissions for wind and solar power.

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