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Potential for using municipal solid waste as a resource for bioenergy with carbon capture and storage (BECCS)
International Journal of Greenhouse Gas Control ( IF 3.9 ) Pub Date : 2017-11-09 , DOI: 10.1016/j.ijggc.2017.11.007
Nasim Pour , Paul A. Webley , Peter J. Cook

Bioenergy with Carbon Capture and Storage (BECCS) is a carbon removal technology that offers permanent net removal of carbon dioxide (CO2) from the atmosphere. One of the significant bioenergy resources is organic waste collected from municipal solid waste (MSW). The goal of this study was to provide an estimate of the global potential for using municipal solid waste as a resource for bioenergy with carbon capture and storage (BECCS) and to compare the feasibility of two specific BECCS options: municipal solid waste incineration with carbon capture and storage (MSW-CCS), and landfill gas combusted in a gas turbine with carbon capture and storage (LFG-CCS). To assess the feasibility of MSW-based BECCS options, techno-economic and environmental impact assessments were conducted. In the case of a “business-as-usual” scenario with no emission policy in effect, the levelised cost of electricity production from both BECCS options is higher than a coal power plant with CCS. However, these BECCS systems offer a lower cost of avoided CO2. Introducing renewable energy certificates or negative emission refund schemes to BECCS has a significant impact on the economic viability of these technologies in coal-dominant power markets. Environmental impact assessment shows that around 0.7 kg CO2-eq is removed for each kg of wet MSW incinerated, for the MSW-CCS scenario. This translates to approximately negative 2.8 billion tonnes CO2 if all the available 4 billion tonnes MSW generated per year by 2100 is utilised in a MSW-CCS system. The net GHG emission of the LFG-CCS system with an average LFG collection rate of 75% was 0.56 kg CO2-eq. Challenges include the dispersed nature of MSW resources and the lack of economic support schemes, such as commonly apply to solar and wind. Nonetheless, MSW-based BECCS technologies have significant potential for abating and in some cases removing considerable amounts of the greenhouse gases from the atmosphere, thereby contributing significantly to the COP21 emission reduction targets.



中文翻译:

利用城市固体废物作为具有碳捕获和存储(BECCS)的生物能源的潜力

带有碳捕集与封存的生物能源(BECCS)是一种碳去除技术,可永久性去除二氧化碳(CO 2)。重要的生物能源资源之一是从城市固体废物(MSW)中收集的有机废物。这项研究的目的是对使用城市固体废物作为具有碳捕获和存储(BECCS)的生物能源资源的全球潜力进行估算,并比较两种特定的BECCS选项的可行性:城市固体垃圾焚烧和碳捕获和储存(MSW-CCS),以及在具有碳捕获和储存(LFG-CCS)的燃气轮机中燃烧的垃圾填埋气。为了评估基于MSW的BECCS选项的可行性,进行了技术经济和环境影响评估。在没有任何排放政策生效的“一切照旧”的情况下,两种BECCS方案的平均发电成本要高于采用CCS的燃煤电厂。然而,2。向BECCS引入可再生能源证书或负排放退款方案,对这些技术在以煤炭为主的电力市场中的经济可行性具有重大影响。环境影响评估显示,对于MSW-CCS情景,每焚化一公斤湿MSW可去除约0.7 kg CO 2当量。如果到2100年每年使用的40亿吨MSW都用于MSW-CCS系统,那么这将转化为约28亿吨的负CO 2。LFG-CCS系统的平均GHG收集率为75%的温室气体净排放量为0.56 kg CO 2当量。挑战包括城市固体废弃物资源的分散性质以及缺乏经济支持计划,例如通常适用于太阳能和风能的计划。尽管如此,基于MSW的BECCS技术具有显着的减排潜力,在某些情况下还可以从大气中去除大量温室气体,从而为COP21减排目标做出了重大贡献。

更新日期:2017-11-09
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