In this work, a physio-economic model supported by lab-scale experiments assessing the economic viability of minichannel based carbon capture units is presented. The net present value of (capital and operating) costs (NPVC) ensued throughout the plant life is selected as the benchmarking parameter. An optimization problem is formulated and solved with the objective of minimizing the NPVC of the unit subject to constraints imposed by the physics of absorption and pressure drop limits; both of which are captured via experimentally deduced empirical correlations. The results show that the minichannel absorbers are economically competitive to conventional systems for low capacity CO₂ capture achieving savings ranging from ∼50% to 3% for plant capacities ranging from 5 to 50 MMSCFD, respectively, primarily due to their lower capital costs. At higher plant capacities, the higher operating costs of the minichannel units dominate their NPVC and as such lead them to lose their competitiveness. © 2017 American Institute of Chemical Engineers AIChE J, 2017

中文翻译：

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小通道吸收器碳捕集的经济评估

在这项工作中，提出了由实验室规模的实验支持的生理经济模型，该实验评估了基于小通道的碳捕集单元的经济可行性。选择在整个工厂寿命期内产生的（资本和运营）成本（NPVC）的净现值作为基准参数。提出并解决了一个优化问题，其目的是使单元的NPVC最小化，该单元受吸收物理特性和压降极限的限制。两者都是通过实验推导的经验相关性来捕获的。结果表明，对于低容量CO ₂而言，微通道吸收器在经济上比常规系统更具竞争力对于工厂产能从5到50 MMSCFD的工厂，分别节省了约50％至3％的费用，这主要是因为它们的投资成本较低。在较高的工厂产能下，微型通道设备的较高运营成本在其NPVC中占主导地位，因此导致它们失去竞争力。©2017美国化学工程师学会AIChE J，2017