全球智库信息集成服务系统(G2TT): Near-term deployment of carbon capture and sequestration from biorefineries in the United States.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1073/pnas.1719695115
	Near-term deployment of carbon capture and sequestration from biorefineries in the United States.
	Sanchez DL; Johnson N; McCoy ST; Turner PA; Mach KJ
发表日期	2018
出处	Proceedings of the National Academy of Sciences 115 (19): 4875-4880
出版年	2018
语种	英语
摘要	Capture and permanent geologic sequestration of biogenic CO2 emissions may provide critical flexibility in ambitious climate change mitigation. However, most bioenergy with carbon capture and sequestration (BECCS) technologies are technically immature or commercially unavailable. Here, we evaluate low-cost, commercially ready CO2 capture opportunities for existing ethanol biorefineries in the United States. The analysis combines process engineering, spatial optimization, and lifecycle assessment to consider the technical, economic, and institutional feasibility of near-term carbon capture and sequestration (CCS). Our modeling framework evaluates least cost source-sink relationships and aggregation opportunities for pipeline transport, which can cost-effectively transport small CO2 volumes to suitable sequestration sites; 216 existing US biorefineries emit 45 Mt CO2 annually from fermentation, of which 60% could be captured and compressed for pipeline transport for under $25/tCO2 A sequestration credit, analogous to existing CCS tax credits, of $60/tCO2 could incent 30 Mt of sequestration and 6,900 km of pipeline infrastructure across the United States. Similarly, a carbon abatement credit, analogous to existing tradeable CO2 credits, of $90/tCO2 can incent 38 Mt of abatement. Aggregation of CO2 sources enables cost-effective long-distance pipeline transport to distant sequestration sites. Financial incentives under the low-carbon fuel standard in California and recent revisions to existing federal tax credits suggest a substantial near-term opportunity to permanently sequester biogenic CO2 This financial opportunity could catalyze the growth of carbon capture, transport, and sequestration; improve the lifecycle impacts of conventional biofuels; support development of carbon-negative fuels; and help fulfill the mandates of low-carbon fuel policies across the United States.
主题	Energy (ENE)
URL	http://pure.iiasa.ac.at/id/eprint/15245/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/131478
推荐引用方式 GB/T 7714	Sanchez DL,Johnson N,McCoy ST,et al. Near-term deployment of carbon capture and sequestration from biorefineries in the United States.. 2018.