Process Design of Thermal Stripper for desorption of dissolved H2S from physical solvent Di-Methyl-Ethre of poly-Ethylene-Glycol

A Dave, B Pathak, M Dave, S Rezvani, Y Huang, Neil Hewitt

Research output: Contribution to journalArticle

Abstract

Acid gas removal from syngas is an important process step upstream of its further processing for combustion or further processing of syngas. Integrated Gasification Combined Cycle (IGCC) power plant or chemical production (such as urea or petrochemicals, etc.). The process of absorbing the H2S in Di-Methyl-Ethre of poly-Ethylene-Glycol (DMEPEG) solvent and the process of enriching the DMEPEG solvent with dissolved H2S has been described in literature (including the publications by the Author). This publication describe the process of stripping out the dissolved H2S from the DMEPEG solvent using a thermal stripper designed using the rate based mass transfer simulations carried out using ProTreat software.
Basic process design and equipment size is described in this publication. 20 MW heat input is needed to strip out 19.13 kmol/s H2S from the 1.136 kmol/s DMEPEG solvent thus resulting in overall heat consumption of 30.7 GJ / Ton H2S capture.
Limitations of this process design are also described. Various options of packed tower configuration have been suggested for tower internals resulting in similar performance.
LanguageEnglish
Pages1-5
Number of pages14
JournalMaterials Science for Energy Technologies
Volume2020 Volume 2
Early online date30 Sep 2019
DOIs
Publication statusE-pub ahead of print - 30 Sep 2019

Fingerprint

Polyethylene glycols
Process design
Desorption
Towers
Combined cycle power plants
Processing
Gasification
Petrochemicals
Urea
Mass transfer
Gases
Acids
Hot Temperature

Keywords

  • IGCC
  • H2S Capture
  • Packed Tower
  • HETP
  • DMEPEG
  • PFD

Cite this

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title = "Process Design of Thermal Stripper for desorption of dissolved H2S from physical solvent Di-Methyl-Ethre of poly-Ethylene-Glycol",
abstract = "Acid gas removal from syngas is an important process step upstream of its further processing for combustion or further processing of syngas. Integrated Gasification Combined Cycle (IGCC) power plant or chemical production (such as urea or petrochemicals, etc.). The process of absorbing the H2S in Di-Methyl-Ethre of poly-Ethylene-Glycol (DMEPEG) solvent and the process of enriching the DMEPEG solvent with dissolved H2S has been described in literature (including the publications by the Author). This publication describe the process of stripping out the dissolved H2S from the DMEPEG solvent using a thermal stripper designed using the rate based mass transfer simulations carried out using ProTreat software. Basic process design and equipment size is described in this publication. 20 MW heat input is needed to strip out 19.13 kmol/s H2S from the 1.136 kmol/s DMEPEG solvent thus resulting in overall heat consumption of 30.7 GJ / Ton H2S capture.Limitations of this process design are also described. Various options of packed tower configuration have been suggested for tower internals resulting in similar performance.",
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author = "A Dave and B Pathak and M Dave and S Rezvani and Y Huang and Neil Hewitt",
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Process Design of Thermal Stripper for desorption of dissolved H2S from physical solvent Di-Methyl-Ethre of poly-Ethylene-Glycol. / Dave, A; Pathak, B; Dave, M; Rezvani, S; Huang, Y; Hewitt, Neil.

In: Materials Science for Energy Technologies, Vol. 2020 Volume 2, 30.09.2019, p. 1-5.

Research output: Contribution to journalArticle

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T1 - Process Design of Thermal Stripper for desorption of dissolved H2S from physical solvent Di-Methyl-Ethre of poly-Ethylene-Glycol

AU - Dave, A

AU - Pathak, B

AU - Dave, M

AU - Rezvani, S

AU - Huang, Y

AU - Hewitt, Neil

PY - 2019/9/30

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AB - Acid gas removal from syngas is an important process step upstream of its further processing for combustion or further processing of syngas. Integrated Gasification Combined Cycle (IGCC) power plant or chemical production (such as urea or petrochemicals, etc.). The process of absorbing the H2S in Di-Methyl-Ethre of poly-Ethylene-Glycol (DMEPEG) solvent and the process of enriching the DMEPEG solvent with dissolved H2S has been described in literature (including the publications by the Author). This publication describe the process of stripping out the dissolved H2S from the DMEPEG solvent using a thermal stripper designed using the rate based mass transfer simulations carried out using ProTreat software. Basic process design and equipment size is described in this publication. 20 MW heat input is needed to strip out 19.13 kmol/s H2S from the 1.136 kmol/s DMEPEG solvent thus resulting in overall heat consumption of 30.7 GJ / Ton H2S capture.Limitations of this process design are also described. Various options of packed tower configuration have been suggested for tower internals resulting in similar performance.

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