Assessing the potential of utilization and storage strategies for post-combustion CO2 emissions reduction
Assessing the potential of utilization and storage strategies for post-combustion CO2 emissions reduction
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DOI：
10.3389/fenrg.2015.00008
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发表时间：
2015-01-01
影响因子：
3.4
通讯作者：
Styring, Peter
中科院分区：
文献类型：
--
作者：
Armstrong, Katy;Styring, Peter
考虑了燃烧后捕获的三种二氧化碳处理策略的减排潜力。它们是碳捕获和封存/封存(CCS)、增强碳氢化合物回收(EHR)和二氧化碳利用(CDU)以生产合成油。这是使用共同和可比较的边界条件进行的，包括基于等效边界条件的净二氧化碳封存。这是通过从摇篮到坟墓的方法来实现的，在这种方法中，任何产品的最终目的地和命运都被考虑在内。输入边界是使用燃烧后捕获过程产生的纯二氧化碳，因为这在所有过程中都是常见的。产量边界是假设大部分石油将进入燃烧过程而生产的任何产品产生的排放量。我们还考虑了从摇篮到门的方法，其中不考虑石油的最终命运，因为这是经常应用于EHR过程的边界条件。结果表明，虽然CCS可以对二氧化碳排放产生影响，但CDU在产生收入的同时将具有类似的效果，而EHR最终将增加净排放量。还使用基于当前和计划的CCS项目的数据，将CDU的全球能力与CCS进行了比较。分析表明，目前的CDU的捕获量比CCS过程大，而且这一差距很可能持续到2020年以后，这是数据库中CCS项目的极限。
The emissions reduction potential of three carbon dioxide handling strategies for post-combustion capture is considered. These are carbon capture and sequestration/storage (CCS), enhanced hydrocarbon recovery (EHR), and carbon dioxide utilization (CDU) to produce synthetic oil. This is performed using common and comparable boundary conditions including net CO2 sequestered based on equivalent boundary conditions. This is achieved using a cradle to grave approach where the final destination and fate of any product is considered. The input boundary is pure CO2 that has been produced using a post-combustion capture process as this is common between all processes. The output boundary is the emissions resulting from any product produced with the assumption that the majority of the oil will go to combustion processes. We also consider the cradle to gate approach where the ultimate fate of the oil is not considered as this is a boundary condition often applied to EHR processes. Results show that while CCS can make an impact on CO2 emissions, CDU will have a comparable effect whilst generating income while EHR will ultimately increase net emissions. The global capacity for CDU is also compared against CCS using data based on current and planned CCS projects. Analysis shows that current CDU represent a greater volume of capture than CCS processes and that this gap is likely to remain well beyond 2020 which is the limit of the CCS projects in the database.