当前位置: X-MOL 学术Int. J. Greenh. Gas. Con. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Design and evaluation of CO2 capture plants for the steelmaking industry by means of amine scrubbing and membrane separation
International Journal of Greenhouse Gas Control ( IF 4.6 ) Pub Date : 2018-05-26 , DOI: 10.1016/j.ijggc.2018.05.009
Wonseok Chung , Kosan Roh , Jay H. Lee

An option considered for reducing carbon emissions in the iron/steel industry is the use of Top-gas recycle blast furnace (TGR-BF), which captures CO2 from the blast furnace gas (BFG) and recycles the remaining CO and H2 back to the blast furnace (BF). This study suggests four different designs of CO2 capture processes suitable for the TGR-BF application: Amine scrubbing, membrane separation, and a hybrid between the amine scrubbing and the membrane separation with and without heat recovery. In particular, the hybrid-with-heat-recovery design recovers the combustion heat of the impurities (e.g., CO and H2) in the captured CO2 stream. The four alternative processes are simulated and evaluated on the basis of multiple criteria including operating cost, capital cost, rate of CO2 avoided, and CO2 avoidance cost with various electricity sources. Furthermore, sensitivity analysis is performed by perturbing the utility prices. Among the four alternatives, the hybrid-with-heat-recovery design is shown to give the best performance with the avoidance cost of $30.4/tonCO2, outperforming the mature technologies.



中文翻译:

通过胺洗涤和膜分离设计和评估炼钢行业的CO 2捕集装置

在钢铁工业中考虑减少碳排放的一种选择是使用顶部气体再循环高炉(TGR-BF),该气体从高炉气体(BFG)中捕集CO 2并将剩余的CO和H 2再循环回去到高炉(BF)。这项研究提出了适用于TGR-BF应用的四种不同的CO 2捕集工艺设计:胺洗涤,膜分离以及胺洗涤和膜分离(有无热回收)之间的混合。特别地,热回收混合设计可回收捕获的CO 2中杂质(例如,CO和H 2)的燃烧热。溪流。在多种标准的基础上模拟和评估了这四个替代过程,包括运营成本,资本成本,避免的CO 2比率以及使用各种电源的避免CO 2的成本。此外,通过扰动公用事业价格来进行敏感性分析。在这四种备选方案中,混合动力与热回收所示的设计给30.4 $ /吨避免成本的最佳性能CO2,跑赢成熟的技术。

更新日期:2018-05-26
down
wechat
bug