In both natural gas and petroleum reservoirs, the extracted gas is not only composed of methane: a variable and significant quantity of other compounds, such as different hydrocarbons (ethane, butane, pentane, propane, etc.), inert gas (nitrogen), and toxic and corrosive molecules (i.e., carbon dioxide and hydrogen sulfide), are present. In order to reach commercial specifications, natural gas has to be treated, in particular for reaching the minimum gross calorific value required and decreasing CO₂ and H₂S presence under the respective tolerance values. To do this, several different treatments are commonly applied, like inlet separation, sweetening, mercury removal, dehydration, liquid recovery, and, finally, compression for its transportation. Considering the growing demand and the necessity of exploiting also lower quality natural gas reservoirs, in the present paper, an original solution, for performing a gas treatment, is proposed and analyzed. It consists of promoting hydrates formation for both different compounds separation and gas storage. The greatest part of chemicals commonly present in natural gas is capable to form hydrates, but at different thermodynamic conditions than others. Parameters such as the typology of stored compound and the formation process efficiency are mainly related to partial pressure of each element. Here, the present strategy has been explored and the results achievable were shown. In particular, different possible natural gas compositions were taken into account and specifications required for gas commercialization were considered target of the process. Results led to different possibilities of raw gas treatment: in some cases, gas separation led to contemporary CH₄ storage into hydrate structures, while, in the presence of different mixture compositions, contaminants were trapped into water cages and methane (and, eventually, other hydrocarbon compounds) remained in the gas phase.

在天然气和石油储层中，提取的气体不仅由甲烷组成：多种多样的大量其他化合物，例如不同的碳氢化合物（乙烷，丁烷，戊烷，丙烷等），惰性气体（氮气），存在有毒和腐蚀性的分子（即二氧化碳和硫化氢）。为了达到商业规格，必须处理天然气，特别是为了达到所需的最小总热值并减少CO ₂和H ₂在相应的公差值下存在S。为此，通常采用几种不同的处理方法，例如入口分离，脱硫，脱汞，脱水，液体回收以及最后压缩以进行运输。考虑到需求的增长和开发低质量天然气储层的必要性，本文提出并分析了进行天然气处理的原始解决方案。它包括促进水合物形成，以用于不同的化合物分离和气体存储。天然气中通常存在的大部分化学物质能够形成水合物，但在与其他条件不同的热力学条件下。诸如所存储化合物的类型和形成过程效率之类的参数主要与每个元素的分压有关。这里，探索了目前的策略，并显示了可达到的结果。特别地，考虑了不同的可能的天然气组成，并且将天然气商业化所需的规格视为该过程的目标。结果导致了原料气处理的不同可能性：在某些情况下，气体分离导致了当代CH₄存储在水合物结构中，同时在存在不同混合物组成的情况下，污染物被捕集到水笼中，甲烷（以及最终的其他碳氢化合物）保留在气相中。