Abstract
The global natural gas demand is expected to rise continuously over the next decades, compelling industries to study and develop new natural gas purification processes, such as those using low-temperature, in order to allow the profitable exploitation of low-quality gas reserves (with high contents of CO2 and/or H2S) that up to some years ago were not considered suitable for their commercialization. When dealing with natural gas, not only are acidic gases present in the main stream but also hydrocarbons heavier than methane (ethane, propane, n-butane, etc.). These substances may have to be removed from the produced gas for the dew point control of the sales gas or to manage its BTU content. Moreover, they are widely used for petrochemical productions and their recovery can be profitable for natural gas producers. In this work, an energy analysis is carried out in order to assess the energy requirements for the recovery of Natural Gas Liquids (NGLs) during natural gas purification at low-temperatures. The ...
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