New solvent blends for post-combustion CO2 capture

被引：44
作者：
Knuutila, Hanna K. [1 ]
Rennemo, Rune [1 ]
Ciftja, Arlinda F. [1 ]
机构：
[1] Norwegian Univ Sci & Technol, Dept Chem Engn, NO-7491 Trondheim, Norway
来源：
GREEN ENERGY & ENVIRONMENT | 2019年 / 4卷 / 04期
关键词：
CO2; capture; Chemical absorption; Vapor-liquid equilibria; BICARBONATE FORMING SOLVENTS; AQUEOUS-SOLUTIONS; CARBON-DIOXIDE; PILOT-PLANT; N; N-DIETHYLETHANOLAMINE DEEA; ABSORPTION CAPACITY; CYCLIC CAPACITY; AMINE SOLVENTS; SOLUBILITY; MONOETHANOLAMINE;
D O I：
10.1016/j.gee.2019.01.007
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In the current work five different solvent blends are experimentally studied and the reboiler duties are calculated using the so-called short-cut method. Tertiary amines, 2-(diethylamino)ethanol (DEEA), 3-(Diethylamino)-1,2-propanediol (DEA-12PD), 2-[2-(Diethylamino)ethoxy] ethanol (DEA-EO), 1-(2-Hydroxyethyl)piperidine (12HE-PP) are blended with 3-(Methylamino)propylamine (MAPA) and ethanolamine (MEA). The first results from simple solvent screening are given and the cyclic capacities are calculated based data at 40 degrees C and 80 degrees C. Then, five solvent systems are chosen for vapor-liquid equilibrium characterization. The vapor-liquid equilibrium data are then used to estimate cyclic capacities at more realistic temperatures, between 40 degrees C and 120 degrees C and by using a short-cut method proposed in the literature the reboiler duties of the characterized solvents are estimated. Finally, the potential of the studied systems is discussed. Several of the characterized blends showed reboiler duties around 2.5 MJ kg(CO2)(-1). (C) 2019, Institute of Process Engineering, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.
引用
收藏
页码：439 / 452
页数：14
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