Screening of strong bicarbonate forming solvents for CO2 capture

被引：47

作者：

Hartono, A. ^{[1
]}

Vevelstad, S. J. ^{[2
]}

Ciftja, A. ^{[1
]}

Knuutila, H. K. ^{[1
]}

机构：

[1] Norwegian Univ Sci & Technol, Dept Chem Engn, N-7491 Trondheim, Norway

[2] SINTEF Mat & Chem, POB 4760, Trondheim, Norway

来源：

INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL | 2017年 / 58卷

关键词：

Screening; carbonate forming solvent; CO2; capture; Dissociation constant; STERICALLY HINDERED AMINES; CARBON-DIOXIDE ABSORPTION; GAS-PHASE BASICITIES; AQUEOUS-SOLUTIONS; THERMODYNAMIC PROPERTIES; INITIO METHODS; ABSORBENTS; EQUILIBRIUM; PROTONATION; CONSTANTS;

D O I：

10.1016/j.ijggc.2016.12.018

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Fifteen bicarbonate forming solvents were tested and compared to 30 mass% MEA using a screening apparatus. Additionally the pKa values of each of the solvents at room temperature were measured. The overall evaluation was based on screening tests allowing estimation of cyclic capacity, pKa measurements and operative behavior of the system (foaming, high viscosity, precipitation). Based on the overall evaluation, two solvents, 2-PPE and 1-(2HE)PRLD, were chosen for further characterization. The solvent concentration was optimized using the screening setup. The optimal solvent concentrations found were 50 mass% 2-PPE, and 40 mass% 1-(2HE)PRLD. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：201 / 211

页数：11

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