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高效煤炭技术与2C情景的不相容性The incompatibility of highefficient coal technology with 2C scenarios

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更新时间：2021-09-16
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2015年12月，各国政府在巴黎承诺将全球平均气温升幅控制在远低于工业化前水平2摄氏度以内，并努力将其控制在1.5摄氏度以下。为了实现这些承诺，世界需要转向低碳经济。根据国际气候变化专门委员会(IPCC)对排放情景的评估，这意味着到2050年全球电力部门需要脱碳。高效低排放(HELE)燃煤电厂的部署被煤炭行业和一些政府视为一种对气候友好的技术，它们声称，如果与另一种独立的技术——碳捕获与封存(CCS)相结合，最终将导致零排放甚至负排放。燃煤发电的HELE技术可以将目前运行的燃煤电厂的排放量从1000 gCO2/kWh减少到670 gCO2/kWh，而燃气轮机的排放量为350-490 gCO2/kWh，风能和太阳能的直接排放量为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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高效煤炭技术与2C情景的不相容性The incompatibility of highefficient coal technology with 2C scenarios

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