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首页> 外文期刊>ISIJ international >Effects of Biomass Use in Integrated Steel Plant – Gate-to-gate Life Cycle Inventory Method
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Effects of Biomass Use in Integrated Steel Plant – Gate-to-gate Life Cycle Inventory Method

机译：综合钢铁厂中生物质利用的影响-门到门生命周期清单方法

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Biomass use has been identified as one of the possibilities to mitigate fossil greenhouse gas emissions in iron and steelmaking. Biomass can be used to replace part of the fossil-based reducing agents in blast furnace without compromising the quality of the final product. The advantage of biomass compared to fossil-based fuels is that it is renewable energy source and can thus be considered carbon dioxide neutral within specified system boundaries. Few studies have been conducted where the effect of biomass introduction to blast furnace process have been evaluated with mathematical modeling or lab-scale experiments. The other body of literature concerns the life cycle based assessments. This study presents the effects of biomass use in plant site scale with energy balances and CO_(2) reduction potential. For the evaluation purposes integrated steel plant model based on physico-chemical relationships was developed. The model can be used for calculating gate-to-gate life cycle inventory for evaluating the environmental burden of the integrated steel plant. Effect of charcoal as tuyére injectant to blast furnace process was firstly evaluated. The results indicate that to replace 1 kg of specific heavy oil, 1.15 kg charcoal would be needed. Plant-wide effects of two distinct charcoal usage scenarios were evaluated and compared to base case scenario with fossil-based reducing agents. Plant site evaluation suggests that by introducing biomass to integrated steel plant, major changes in energy balances occur and significant fossil CO_(2) emission reduction can be achieved. This study indicates that 15.4 to 26.4% reduction in fossil CO_(2) emissions could be achieved in plant scale.
机译：生物质利用已被确定为减轻钢铁生产中化石温室气体排放的一种可能性。在不影响最终产品质量的情况下，生物质可用于替代高炉中部分基于化石的还原剂。与基于化石的燃料相比，生物质的优势在于它是可再生能源，因此可以在特定系统范围内被视为二氧化碳中性。很少有研究通过数学模型或实验室规模的实验来评估生物质引入高炉过程的影响。其他文献涉及基于生命周期的评估。这项研究提出了利用植物能量规模和能量平衡和减少CO_（2）潜力的生物量利用的影响。为了评估的目的，开发了基于理化关系的综合钢铁厂模型。该模型可用于计算门到门的生命周期清单，以评估综合钢铁厂的环境负担。首先评估了木炭作为风口喷射剂对高炉工艺的影响。结果表明，要替换1千克特定的重油，将需要1.15千克木炭。评估了两种不同的木炭使用方案对全厂的影响，并将其与基于化石的还原剂的基本方案进行了比较。工厂现场评估表明，通过将生物质引入综合钢铁厂，能源平衡发生了重大变化，并且可以实现显着的化石CO_（2）减排。这项研究表明，在工厂范围内，化石CO_（2）排放量可减少15.4％至26.4％。

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