Triethylene glycol recovery by an energetically intensified thermosyphon-assisted falling film distillation unit: Experimental assessment on a pilot-scale unit and in-silico comparison with a conventional column from natural gas processing

Battisti, Rodrigo

doi:10.1016/j.cep.2022.108970

Cited by 3 publications

(1 citation statement)

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“…Natural gas and associated gas produced from gas and oil reservoirs respectively contain signi cant amounts of water vapor that are usually saturated at operating temperature and pressure (Mokhatab et al, 2015). The existence of water in natural gas is a signi cant cause of concern in the oil industry as it leads to gas hydrate formation which can subsequently cause blockages in pipelines, decreases gas ow and leads to pressure drops (Peruzzo et al, 2022). Furthermore, the water must be removed from gas to prevent corrosion, especially in the presence of H 2 S and CO 2 , which ultimately helps to ensure a safe and reliable operation (Braek et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Techno-economical evaluation of three methods for stripping gas recovery in gas dehydration by unit of Khark petrochemical complex

Abdehvand,

Haghi,

Hosseinirad

2023

Preprint

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The presence of water vapor in natural gas poses several issues including corrosion, blockages, and reduced pipeline capacity. The gas dehydration is a crucial process to reduce the water content and mitigate these problems. In this paper, glycol dehydration unit of Khark Petrochemical Company (KPC) has been simulated using Aspen Hysys v11.0 process simulator. At first, the simulation results has been validated with the design data and affecting parameters on the dehydration unit performance were identified through sensitivity analysis and their effects on the produced dry gas was investigated. The results showed that increasing the solvent circulation rate, stripping gas flow rate and reboiler temperature leads to more water removal rate. Secondly, the several options are suggested for stripping gas recovery and capital and operating expenditure for each option has been estimated and techno-economical evaluation of stripping gas recovery was carried out. Our techno-economic analysis reveals that about 0.7 MMSCFD stripping gas can be recovered from regeneration towers by increasing the operating pressure of regenerator and separating water from stripping gas. In the optimum option (sending the stripping gas to low pressure feed gas compressor), this project requires about 80,000 $ capital cost and has 1.7 MM$ annual revenue.

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Section: Introductionmentioning

confidence: 99%