首页 > 资料下载 > 加拿大安大略省煤、天然气和木质颗粒生产电力的生命周期排放和成本Life Cycle Emissions and Cost of Producing Electricity from Coal,Natu
加拿大安大略省煤、天然气和木质颗粒生产电力的生命周期排放和成本Life Cycle Emissions and Cost of Producing Electricity from Coal,Natu 加拿大安大略省煤、天然气和木质颗粒生产电力的生命周期排放和成本Life Cycle Emissions and Cost of Producing Electricity from Coal,Natu

加拿大安大略省煤、天然气和木质颗粒生产电力的生命周期排放和成本Life Cycle Emissions and Cost of Producing Electricity from Coal,Natu

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  • 更新时间：2021-09-09
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煤炭的使用导致了全球温室效应的1/5。 气体(GHG)排放。生物质燃料替代煤炭 是有限的短期选择之一，可以显著减少 这些排放。我们在生命周期的基础上调查100% 木质颗粒环和煤环在两次采煤中的应用 加拿大安大略省的电台。温室气体与大气污染物标准 将排放量与当前煤炭进行比较，并进行假设 天然气联合循环装置.100%造粒 以千瓦时为单位提供最大的温室气体排放量， 与煤炭和NGCC相比，减排91%和78% 分别是系统。与煤相比，使用100%的颗粒 NOx排放降低40～47％，SOx排放降低76～81％。 每公吨160美元的小球和每公吨7美元的天然气。 coring或NGCC提供了最具成本效益的温室气体减排 （分别是70美元和47美元/公吨二氧化碳当量）。这个 差价、发电成本和任务 在两个GS负责不同的选择 首选。对燃料成本的敏感性分析显示相当可观。 所有选项的结果重叠。球团价格更低（100美元/ (公吨)导致每公吨二氧化碳34美元的缓解成本 在一个GS上相当于10%辅环。研究 结果表明，生物质在煤炭GS中的利用应为 考虑到其具有成本效益地减少温室气体的潜力 煤基电力在近期内。

The use of coal is responsible for 1/5 of global greenhouse gas (GHG) emissions. Substitution of coal with biomass fuels is one of a limited set of near-term options to significantly reduce these emissions. We investigate, on a life cycle basis, 100% wood pellet firing and cofiring with coal in two coal generating stations (GS) in Ontario, Canada. GHG and criteria air pollutant emissions are compared with current coal and hypothetical naturalgascombinedcycle(NGCC)facilities.100%pelletutilization provides the greatest GHG benefit on a kilowatt-hour basis, reducing emissions by 91% and 78% relative to coal and NGCC systems, respectively. Compared to coal, using 100% pellets reducesNOx emissionsby40-47%andSOx emissionsby76-81%. At $160/metric ton of pellets and $7/GJ natural gas, either cofiring or NGCC provides the most cost-effective GHG mitigation ($70 and $47/metric ton of CO2 equivalent, respectively). The differencesincoalprice,electricitygenerationcost,andemissions at the two GS are responsible for the different options being preferred. A sensitivity analysis on fuel costs reveals considerable overlap in results for all options. A lower pellet price ($100/ metric ton) results in a mitigation cost of $34/metric ton of CO2 equivalent for 10% cofiring at one of the GS. The study results suggest that biomass utilization in coal GS should be considered for its potential to cost-effectively mitigate GHGs from coal-based electricity in the near term.

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