A Multistage Fluidized Bed for the Deep Removal of Sour Gases: Proof of Concept and Tray Efficiencies

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Abstract

Currently there are significant amounts of natural gas that cannot be produced and treated to meet pipeline specifications, because that would not be economically viable. This work investigates a bench scale multistage fluidized bed (MSFB) with shallow beds for sour gas removal from natural gas using a commercially available supported amine sorbent. A MSFB is regarded as a promising adsorber type for deep sour gas removal to parts per million concentrations. A series of experiments was conducted using carbon dioxide as sour gas and nitrogen to mimic natural gas. Removal below 3 mol ppm was successfully demonstrated. This indicates that gas bypassing is minor (that is, good gas–solid contacting) and that apparent adsorption kinetics are fast for the amine sorbent applied. Tray efficiencies for a chemisorption/adsorption system were reported for one of the first times. Current experiments performed at atmospheric pressure strongly indicate that deep removal is possible at higher pressures in a multistage fluidized bed.
Original languageEnglish
Pages (from-to)3866-3875
Number of pages10
JournalIndustrial and engineering chemistry research
Volume57
Issue number11
DOIs
Publication statusPublished - 21 Mar 2018

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Sour gas
Fluidized beds
Natural gas
Sorbents
Amines
Adsorption
Chemisorption
Carbon Dioxide
Atmospheric pressure
Carbon dioxide
Nitrogen
Pipelines
Gases
Experiments
Specifications
Kinetics

Keywords

  • UT-Hybrid-D

Cite this

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A Multistage Fluidized Bed for the Deep Removal of Sour Gases : Proof of Concept and Tray Efficiencies. / Driessen, Rick T.; Bos, Martin J.; Brilman, Derk W.F.

In: Industrial and engineering chemistry research, Vol. 57, No. 11, 21.03.2018, p. 3866-3875.

Research output: Contribution to journalArticleAcademicpeer-review

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