Selective Absorption of H2S from Gas Mixtures Contains CO2 into New Sterically Hindered Amine DTBP for Natural Gas Purification

C. Y. Yang, H. G. Chang, J. L. He, C. R. Wen, H. Yi, C. Y. Tu, S. S. Qu

2018

Abstract

In this work, an experimental investigation for selective absorption of H2S from gas mixtures into aqueous solutions of new sterically hindered amine for natural gas purification at atmospheric pressure was performed. The new sterically hindered amine with two tertiary butyl alkyls respectively attaches to two N atoms was called DTBP synthesized and characterized by IR and 1HNMR. The effect of concentration and temperature of solutions on absorption performance were investigated by means of the selectivity factor and sour gas load. The performance of simultaneous absorption of CO2 and H2S in to the aqueous solution of DTBP is compared with that of the aqueous solutions of MDEA and AMP. The aqueous solution of DTBP has been found to be an efficient solvent for selective H2S removal. The experimental results also testified the advantages of severe sterically hindered amines (e.g., DTBP and AMP) over traditional amines in selective H2S absorption. This work provides the results for sterically hindered amine to be extensively applied in the field of selective H2S removal.

Paper Citation

in Harvard Style

Yang C., Chang H., He J., Wen C., Yi H., Tu C. and Qu S. (2018). Selective Absorption of H2S from Gas Mixtures Contains CO2 into New Sterically Hindered Amine DTBP for Natural Gas Purification.In Proceedings of the International Workshop on Materials, Chemistry and Engineering - Volume 1: IWMCE, ISBN 978-989-758-346-9, pages 456-465. DOI: 10.5220/0007440104560465

in Bibtex Style

@conference{iwmce18,
author={C. Y. Yang and H. G. Chang and J. L. He and C. R. Wen and H. Yi and C. Y. Tu and S. S. Qu},
title={Selective Absorption of H2S from Gas Mixtures Contains CO2 into New Sterically Hindered Amine DTBP for Natural Gas Purification},
booktitle={Proceedings of the International Workshop on Materials, Chemistry and Engineering - Volume 1: IWMCE,},
year={2018},
pages={456-465},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007440104560465},
isbn={978-989-758-346-9},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Materials, Chemistry and Engineering - Volume 1: IWMCE,
TI - Selective Absorption of H2S from Gas Mixtures Contains CO2 into New Sterically Hindered Amine DTBP for Natural Gas Purification
SN - 978-989-758-346-9
AU - Yang C.
AU - Chang H.
AU - He J.
AU - Wen C.
AU - Yi H.
AU - Tu C.
AU - Qu S.
PY - 2018
SP - 456
EP - 465
DO - 10.5220/0007440104560465