Experimental Study on the Solubility of Carbon Dioxide in Systems Containing Ethane-1,2-diol + Water plus Salt (Sodium Chloride or Calcium Carbonate)

被引：7

作者：

Serpa, Fabiane Santos ^{[1
]}

Vidal, Reginaldo Scariot ^{[1
]}

Bernardo Amaral Filho, Joao Henrique ^{[1
]}

Santos, Alexandre Ferreira ^{[2
]}

do Nascimento, Jailton Ferreira ^{[3
]}

de Senna Figueiredo, Camila Machado ^{[3
]}

Salazar-Banda, Giancarlo Richard ^{[1
]}

Borges, Gustavo Rodrigues ^{[1
]}

Dariva, Claudio ^{[1
]}

Franceschi, Elton ^{[1
]}

机构：

[1] Univ Tiradentes, Nucleo Estudos Sistemas Coloidais PEP PBI ITP, Av Murilo Dantas 300, BR-49032490 Aracaju, Sergipe, Brazil

[2] Univ Fed Parana, Dept Chem Engn, Polytech Ctr, BR-82530990 Curitiba, Parana, Brazil

[3] PETROBRAS CENPES PDEP TPP, Ctr Pesquisa & Desenvolvimento Leopoldo Americo M, BR-21941915 Rio De Janeiro, Brazil

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2017年 / 62卷 / 01期

关键词：

AQUEOUS-SOLUTIONS; CO2; SOLUBILITY; GAS-SOLUBILITY; MONOETHYLENE GLYCOL; ETHYLENE-GLYCOL; MIXED SYSTEMS; PURE WATER; 10; MPA; NACL; MIXTURES;

D O I：

10.1021/acs.jced.6b00381

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The influence of salt concentration on the solubility of gases in aqueous solutions is of interest in many processes of the oil and gas processing industry. Here, we show the influence of the presence of different concentrations of sodium chloride or calcium carbonate on the solubility of carbon dioxide (CO2) in mixtures of monoethylene glycol (MEG) and water by using a gas expansion method. From the experimental data, the solubility and Henry's constant were measured as a function of pressure (from 0.1 to 0.5 MPa) and temperature (from 298 to 333 K), in pure water, pure MEG and in its equimolar mixture, using concentrations of salt up to saturation for all the studied solvents. The experimental. data indicate that the increase in temperature decreases the CO2 solubility in the liquid mixture, whereas pressure shows a positive linear influence on the dissolution of gas. The addition of salt reduced the CO2 solubility in all mixtures due to the salting-out effect.

引用

页码：62 / 68

页数：7

共 24 条

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JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2017, 62 (04): : 1326 - 1334
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