Amine-based carbon dioxide capture is the most mature technology for reducing flue gas CO₂ emissions. It has been postulated and observed during commercialisation of this technology that significant quantities of waste amines are produced. Further industrial implementation of this technology requires adequate disposal or valorisation options for this waste. This review presents an analysis of seven biological and chemical technologies for waste amine amelioration or valorisation. Of these, the biological treatments are identified as being more mature for industrial application with the capacity for marketable product generation. Slow speed is the main drawback of the biological processes but this does not hinder their commercial viability. Using waste amine for NOx reduction in power stations is a secondary option, where it seems probable that the amount of waste amine generated in the CO₂ capture plant is sufficient to fulfil the DeNOx requirements of the flue gas. This route, however, requires investigation into the impact of waste amine impurities on the power station and the CO₂ capture plant operations.

胺基二氧化碳捕集是减少烟道气CO ₂的最成熟技术排放。据推测，在该技术的商业化过程中，产生了大量的废胺。这项技术的进一步工业应用需要对此废物进行充分的处置或增值选择。这篇综述介绍了七种生物和化学技术用于废胺改善或增值的分析。其中，生物学处理被认为对于工业应用已经成熟，并且具有可销售产品的能力。慢速是生物过程的主要缺点，但这并不妨碍其商业可行性。在电站中使用废胺还原NOx是第二种选择，在这种情况下，CO _2中产生的废胺数量似乎很可能捕集装置足以满足烟气中的DeNOx要求。但是，此路线需要调查废胺杂质对电站和CO ₂捕集装置运行的影响。