Process Intensification and Integration for Sustainable Design. Группа авторов

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Process Intensification and Integration for Sustainable Design - Группа авторов


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images mass flow rate (kg/h); HVm, average mass heating value (kJ/kg); ρ, average fluid density (kg/m3); P, average pressure (bar); and ΔFLmix, average explosiveness (%), where the explosiveness for each stream is given as the difference between UFLmix and LFLmix:

      (2.15)equation

      (2.16)equation

      First the process simulation for the six cases is discussed. Specifically the dehydration, the turboexpander, and the fractionation train processes are discussed for all cases. Additionally acid gas removal is considered for the high acid gas case. Acid gas removal is not needed for Feeds #1–5 as acid gas levels (CO2 and H2S) already meet specifications. Free water removal is not needed, as it is assumed only bound water is present (see Section 2.4).

      2.5.1 Process Simulations

      2.5.1.1 Dehydration Process

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      2.5.1.2 NGL Recovery Process

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      2.5.1.3 Fractionation Train

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      2.5.1.4 Acid Gas Removal

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      2.5.2 Profitability Assessment

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      The total revenue increases with increasing quantity of NGLs in the feed, despite the fact that each feed is primarily methane (Figure 2.7).

Commodity Units Base case
Heat value $/gal 0.02
Ethane $/gal 0.262
Propane $/gal 0.632
n‐Butane $/gal 0.691

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