Development and Evaluation of New Amine Solvent at Mikawa PCC Pilot Plant

EngRN: Operations Research (Topic) Pub Date : 2021-04-06 DOI:10.2139/ssrn.3820193

Koshito Fujita, S. Murai, Daigo Muraoka, Y. Kato, Hayato Morigaki, H. Kitamura, S. Saito, Mitsuru Udatsu, Kensuke Suzuki

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Abstract

In this study, Toshiba conducted evaluation for our new absorbents (absorbent A, absorbent B) being tested by Mikawa CO₂ Capture Pilot Plant (10ton-CO₂/day scale), with respect to not only CO₂ recovery energy but also the performance of the mitigation for amine degradation and amine emissions. The result shows that CO₂ recovery energy of absorbent A and B was almost the same as that of TS-1 under 12% CO₂ concentration. Moreover, CO₂ recovery energy of absorbent A and B revealed much lower than that of TS-1 at low CO₂ concentration (4% CO₂). We also verified amine emissions to compare our new absorbents with TS-1. In the past study, we revealed that the amine emission of TS-1 is lower than MEA solution. In this study, emissions of absorbent A and B are found to be much lower than TS-1. Additionally, it was found that increase rate of formic acid, which is one of the evaluation indicators for amine degradation, derived from our new absorbents (absorbent A, absorbent B) was much lower than that of TS-1.

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三川PCC中试装置新型胺类溶剂的开发与评价

在本研究中，东芝对我们的新型吸收剂(吸收剂A、吸收剂B)进行了评估，该吸收剂正在Mikawa CO2捕集中试工厂(10吨二氧化碳/天规模)进行测试，不仅涉及二氧化碳回收能量，还涉及缓解胺降解和胺排放的性能。结果表明，在12% CO2浓度下，吸附剂A和B的CO2回收能与TS-1几乎相同。在低CO2浓度(4% CO2)下，吸附剂A和B的CO2回收能明显低于TS-1。我们还验证了胺排放，以比较我们的新吸收剂与TS-1。在过去的研究中，我们发现TS-1的胺排放量低于MEA溶液。本研究发现吸收剂A和B的排放量远低于TS-1。此外，我们的新吸收剂(吸收剂A、吸收剂B)对胺降解评价指标之一甲酸的增加速率远低于TS-1。

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EngRN: Operations Research (Topic)

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