The emission of large amounts of CO₂ into the atmosphere is believed to be a major reason behind climate change, which has led to increased demand for CO₂ capture. Postcombustion CO₂ capture with chemical solvent is considered one of the most important technologies in order to reduce CO₂ emission. Amino acid salt solutions have attracted special attention in recent years due to their excellent physicochemical properties, e.g., low volatility, less toxicity, and high oxidative stability, as well as capture performance comparable with conventional amines. In this study, physicochemical properties of 20 amino acids are reported and their CO₂ absorption performance discussed. The topics covered in this review include the most relevant properties of amino acids including CO₂ loading capacity, cyclic capacity, equilibrium constant, density, viscosity, dissociation constant, CO₂ solubility, CO₂ diffusivity, reaction kinetic between CO₂ and amino acid salts, reaction rate constant, surface tension, heat of CO₂ absorption, precipitation, toxicity, solvent degradation, and corrosion rate. This review provides the most recent information available in the literature on the potential of using amino acid salts as a solvent for CO₂ capture which can help improve the performance of the CO₂ capture process from flue gas streams.

中文翻译：

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氨基酸盐溶液可捕获最先进的二氧化碳

人们认为，向大气中排放大量CO ₂是导致气候变化的主要原因，这导致了对CO ₂捕集的需求增加。燃烧后用化学溶剂捕集CO ₂被认为是减少CO ₂排放的最重要技术之一。氨基酸盐溶液由于其出色的理化特性，例如低挥发性，低毒性和高氧化稳定性，以及与传统胺相当的捕获性能，近年来引起了人们的特别关注。在这项研究中，报告了20种氨基酸的理化性质及其CO ₂吸收性能的讨论。这篇综述涵盖的主题包括氨基酸最相关的特性，包括CO ₂负载能力，循环能力，平衡常数，密度，粘度，解离常数，CO ₂溶解度，CO ₂扩散性，CO ₂与氨基酸盐之间的反应动力学，反应速率常数，表面张力，CO ₂吸收热，沉淀，毒性，溶剂降解和腐蚀速率。这篇综述提供了文献中有关使用氨基酸盐作为CO ₂捕集溶剂的潜力的最新信息，这可以帮助改善CO ₂的性能。 从烟气流中捕获过程。