Reaction kinetics of carbon dioxide with 2-amino-2-hydroxymethyl-1,3-propanediol in aqueous solution obtained from the stopped flow method

Cyril Sunday UME; Erdoğan ALPER

Makale detayları

Reaction kinetics of carbon dioxide with 2-amino-2-hydroxymethyl-1,3-propanediol in aqueous solution obtained from the stopped flow method

Yazarlar:

Cyril Sunday UME | Erdoğan ALPER

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2012 Vol.36 Issue 3, pp.427-435

Belge Tipi:

Makale

Yayın Tarihi:

2/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000727620

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

Carbon dioxide (CO2) capture has attracted great interest  these days due to the role of CO2 in global warming and its effects  in industrial processes.  Thus, higher energy efficient and affordable  technologies are required for its removal so as to address these  problems.  In this work, the reaction kinetics of CO2 with 2-amino-2-hyroxymethyl-  1,3-propanediol (AHPD), a sterically hindered amine (SHA), was studied  by direct stopped flow method.  The aim was to research CO2 absorbent  with better CO2 absorption capacity and reaction kinetics than the  commonly applied amine solvents.  The study was carried out at 288,  298, and 303 K in a concentration range of 0.5-2.0 kmol/m3 of AHPD.  Based on the pseudo-first-order for the reaction of CO2, it was found  that the reaction can be modeled by a single termolecular reaction  mechanism.  The reaction rate between CO2 and aqueous solution of  AHPD was 9.99, 12.03, and 16.05 m3/kmol.s at 288, 298, and 303 K,  respectively, while its activation energy was 31.59 kJ/mol.  The  results obtained were compared with published reaction rate data of  other amines.  The present study shows that AHPD is a potential SHA as  CO2 absorbent if the reaction rate is enhanced by an additional  amine.

 

Carbon dioxide (CO2) capture has attracted great interest  these days due to the role of CO2 in global warming and its effects  in industrial processes.  Thus, higher energy efficient and affordable  technologies are required for its removal so as to address these  problems.  In this work, the reaction kinetics of CO2 with 2-amino-2-hyroxymethyl-  1,3-propanediol (AHPD), a sterically hindered amine (SHA), was studied  by direct stopped flow method.  The aim was to research CO2 absorbent  with better CO2 absorption capacity and reaction kinetics than the  commonly applied amine solvents.  The study was carried out at 288,  298, and 303 K in a concentration range of 0.5-2.0 kmol/m3 of AHPD.  Based on the pseudo-first-order for the reaction of CO2, it was found  that the reaction can be modeled by a single termolecular reaction  mechanism.  The reaction rate between CO2 and aqueous solution of  AHPD was 9.99, 12.03, and 16.05 m3/kmol.s at 288, 298, and 303 K,  respectively, while its activation energy was 31.59 kJ/mol.  The  results obtained were compared with published reaction rate data of  other amines.  The present study shows that AHPD is a potential SHA as  CO2 absorbent if the reaction rate is enhanced by an additional  amine.

Makale detayları

Reaction kinetics of carbon dioxide with 2-amino-2-hydroxymethyl-1,3-propanediol in aqueous solution obtained from the stopped flow method

Yazarlar: Cyril Sunday UME | Erdoğan ALPER

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2012 Vol.36 Issue 3, pp.427-435

Belge Tipi: Makale

Yayın Tarihi: 2/2012

Belge Dili: Türkçe

Document ID (Org No.): 2000727620

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Cyril Sunday UME | Erdoğan ALPER

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2012 Vol.36 Issue 3, pp.427-435

Belge Tipi:

Makale

Yayın Tarihi:

2/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000727620

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527