Estimating the Capital Costs of Electrowinning Processes
Estimating the Capital Costs of Electrowinning Processes
复制标题
估算电积工艺的资本成本
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
A. Allanore
中科院分区：
文献类型：
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作者：
C. Stinn;A. Allanore
新型电解工艺仍然是可持续材料加工（特别是金属）进步的有力技术竞争者，但需要与目前部署的生产设施进行经济竞争。为了评估新的电解金属提取工艺的技术经济效果，了解电解提取的资本和运营成本是必要的。电化学运行成本的估算已经得到了应有的重视，但资本成本（CAPEX）的趋势还远未得到理解。在这里，我们试图表明，估计通过传统的化学工程缩放定律的电解过程的资本成本是不可能的。相反，我们提出了一个电化学过程的资本成本模型的基础上相关的操作参数，如电流密度，温度和电压。新的资本成本模型描述了现有电化学工艺的资本支出在±30至100%范围内，足以进行数量级和初步设计资本成本估算。
Novel electrolysis processes remain strong technological contenders for advances in sustainable materials processing, in particular metals, yet will need to compete economically with currently-deployed production facilities. To evaluate the technoeconomic efficacy of new electrolytic metal extraction processes, an understanding of the capital and operating costs of electrowinning is necessary. Estimation of electrochemical operating costs has been afforded due attention, yet capital cost (CAPEX) trends are far less understood. Herein, we attempt to show that estimating the capital costs of electrowinning processes via conventional chemical engineering scaling laws is not possible. Instead, we propose a capital cost model for electrochemical processes based on relevant operating parameters such as current density, temperature, and voltage. The new model for capital cost describes within ±30 to 100% the capex for existing electrochemical processes, sufficient for order of magnitude and preliminary design capital cost estimation.