Evaluation of reactive absorption and adsorption systems for post-combustion CO2 capture applied to iron and steel industry
Evaluation of reactive absorption and adsorption systems for post-combustion CO2 capture applied to iron and steel industry
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DOI：
10.1016/j.applthermaleng.2016.05.149
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发表时间：
2016-07
影响因子：
6.4
通讯作者：
C. Cormos
中科院分区：
文献类型：
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作者：
C. Cormos
减少能源部门和其他化石燃料密集型工业应用的二氧化碳排放量是当今的主要重要问题。钢铁工业是最大的工业CO2排放源之一（约占CO2总排放量的6%）。基于反应性气-液和气-固系统的两种燃烧后CO2捕集方法被评估用于与具有最高CO2排放的工厂子系统（例如，自备电厂、热风炉、焦炉、石灰窑等。使用化学溶剂（例如，链烷醇胺）和钙环（CaL）。碳捕获率至少为90%。本文评估了一个传统规模的综合钢厂，强调能源整合方面和各种碳捕集方案对整体钢厂性能的影响。对所评估的设计（自备电厂和碳捕获装置）进行了建模和模拟，结果用于评估总体指标。出于比较的原因，还考虑了没有碳捕集的综合钢厂的各种自备电厂配置。评估表明，CaL系统具有显着的优势，不仅没有捕获的基准情况下，但也气液吸收的情况下。
Reducing CO2emissions from energy sector and other fossil fuel-intensive industrial applications is of main importance today. The iron and steel industry is one of the largest industrial sources of CO2(about 6% of total CO2emissions). Two post-combustion CO2capture methods based on reactive gas-liquid and gas-solid systems are evaluated to be used in an integrated steel mill in conjunction with the plant sub-systems with the highest CO2emissions e.g., captive power plant, hot stoves, coke ovens, lime kilns, etc. The gas-liquid absorption using chemical solvents (e.g., alkanolamines) and Calcium Looping (CaL) are assessed. The carbon capture rate is set to be at least 90%. The paper evaluates a conventional size of integrated steel mill emphasizing the energy integration aspects and the influence of various carbon capture options on the overall steel mill performances. The evaluated designs (captive power plants and carbon capture units) were modelled and simulated, the results being used to assess the overall indicators. For comparison reason, various captive power plant configurations of integrated steel mill without carbon capture were also considered. The assessments show that CaL system has significant advantages compared not only to benchmark cases without capture but also to the gas-liquid absorption cases.