The effect of boric acid on the vapour liquid equilibrium of aqueous potassium carbonate

被引：35

作者：

Endo, Kohei ^{[1
]}

Nguyen, Que S. ^{[1
]}

Kentish, Sandra E. ^{[1
]}

Stevens, Geoffrey W. ^{[1
]}

机构：

[1] Univ Melbourne, Cooperat Res Ctr Greenhouse Gas Technol CO2CRC, PFPC, Dept Chem & Biomol Engn, Melbourne, Vic 3010, Australia

来源：

FLUID PHASE EQUILIBRIA | 2011年 / 309卷 / 02期

关键词：

Vapour liquid equilibrium; Solvent absorption; Carbon dioxide; Potassium carbonate; Boric acid; NUCLEAR MAGNETIC-RESONANCE; LOW PARTIAL PRESSURES; CO2; ABSORPTION; MONOETHANOLAMINE SOLUTIONS; POLYBORATE EQUILIBRIA; OXIDATIVE-DEGRADATION; FLUE-GASES; POLYANIONS; SOLUBILITY; DIOXIDE;

D O I：

10.1016/j.fluid.2011.06.031

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Aqueous potassium carbonate has seen renewed interest as a viable solvent for pre and post combustion carbon capture and storage. However, slow reaction kinetics may require the addition of a rate promoter such as boric acid to improve efficiency. The vapour liquid equilibrium of 30 weight percent potassium carbonate with 0, 3 and 5 weight percent boric acid was investigated at 50 and 70 degrees C using a dynamic inert gas stripping method. By estimating the boric acid reactions an Electrolyte-NRTL model was able to fit this data and literature results very closely. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：109 / 113

页数：5

共 32 条

[1] Advanced modelling in performance optimization for reactive separation in industrial CO2 removal [J].

Ahmadi, M. ;

Gomes, V. G. ;

Ngian, K. .

SEPARATION AND PURIFICATION TECHNOLOGY, 2008, 63 (01) :107-115

[2] Novel Pre-Combustion Capture Technologies in Action - Results of the CO2CRC/HRL Mulgrave Capture Project [J].

Anderson, Clare ;

Scholes, Colin ;

Lee, Andrew ;

Smith, Kathryn ;

Kentish, Sandra ;

Stevens, Geoff ;

Webley, Paul A. ;

Qader, Abdul ;

Hooper, Barry .

10TH INTERNATIONAL CONFERENCE ON GREENHOUSE GAS CONTROL TECHNOLOGIES, 2011, 4 :1192-1198

[3]

ASEYEV GG, 1999, ELECTROLYTES EQUILIB

[4] Pathways for the formation of products of the oxidative degradation of CO2-loaded concentrated aqueous monoethanolamine solutions during CO2 absorption from flue gases [J].

Bello, A ;

Idem, RO .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2005, 44 (04) :945-969

[5] THERMODYNAMICS OF AQUEOUS-SOLUTIONS OF BORIC-ACID [J].

BRANDANI, V ;

DELRE, G ;

DIGIACOMO, G .

JOURNAL OF SOLUTION CHEMISTRY, 1988, 17 (05) :429-434

[6] LOCAL COMPOSITION MODEL FOR EXCESS GIBBS ENERGY OF ELECTROLYTE SYSTEMS .1. SINGLE SOLVENT, SINGLE COMPLETELY DISSOCIATED ELECTROLYTE SYSTEMS [J].

CHEN, CC ;

BRITT, HI ;

BOSTON, JF ;

EVANS, LB .

AICHE JOURNAL, 1982, 28 (04) :588-596

[7]

CHEN LBE, 1986, AICHE J, V32, P444

[8] Thermodynamics of aqueous potassium carbonate, piperazine, and carbon dioxide [J].

Cullinane, JT ;

Rochelle, GT .

FLUID PHASE EQUILIBRIA, 2005, 227 (02) :197-213

[9] Carbon dioxide absorption with aqueous potassium carbonate promoted by piperazine [J].

Cullinane, JT ;

Rochelle, GT .

CHEMICAL ENGINEERING SCIENCE, 2004, 59 (17) :3619-3630

[10] VAPOR-LIQUID-EQUILIBRIA IN MULTICOMPONENT AQUEOUS-SOLUTIONS OF VOLATILE WEAK ELECTROLYTES [J].

EDWARDS, TJ ;

MAURER, G ;

NEWMAN, J ;

PRAUSNITZ, JM .

AICHE JOURNAL, 1978, 24 (06) :966-976

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