The present review proposes itself to be a collection of decades of literature data about flue-gas usage for gas hydrate production; the results reported here may promote future research on this still quite unexplored field. This paper will put on evidence the main features and advantages associated to the use of these mixtures in the aforementioned application. For instance, it emerges that flue-gas mixtures may address some critical challenges which currently make hydrate exploitation often unfeasible for large-scale industrial applications: they may contribute to solve some important issues related to CO₂ usage in replacement processes. Among them, we highlight the presence of a narrow region between the equilibrium curves of methane and carbon dioxide and costs associated to the production of pure CO₂. After a brief introduction, a description about common flue-gas composition was provided in Chapter 2; Chapter 3 then proposes a collection of phase boundary equilibrium values for binary CO₂/N₂ mixtures, both in presence and in absence of chemical additives used to promote or inhibit hydrate formation. Hydrate formation with flue-gas was then investigated in Chapter 4 to 7 for several different applications: carbon dioxide separation, selective recovery of main components in natural gas mixtures, storage of CO₂ and methane recovery; this final one has been explained with the support of two further tables of literature data about CH₄/CO₂ and CH₄/N₂ equilibria.

本综述建议将自己收集为数十年来有关天然气水合物生产中使用烟道气的文献数据。此处报道的结果可能会促进该领域尚未开发的未来研究。本文将证明上述应用中与这些混合物的使用相关的主要特征和优势。例如，出现了烟道气混合物可能解决了一些关键挑战，这些挑战目前使水合物开采对于大型工业应用而言通常不可行：它们可能有助于解决与替代过程中使用CO ₂有关的一些重要问题。其中，我们强调了甲烷和二氧化碳的平衡曲线与纯二氧化碳生产相关的成本之间存在一个狭窄的区域₂。在简要介绍之后，第2章提供了有关常见烟气成分的描述。然后，第3章提出了在存在和不存在用于促进​​或抑制水合物形成的化学添加剂的情况下，二元CO ₂ / N ₂混合物的相边界平衡值的集合。然后在第4至第7章中研究了烟道气水合物的形成，用于几种不同的应用：二氧化碳分离，天然气混合物中主要成分的选择性回收，CO _2的储存和甲烷的回收；在另外两个关于CH ₄ / CO ₂和CH ₄ / N ₂的文献数据表的支持下，解释了最后一个方法 平衡。