Vapor–Liquid Equilibrium and Physicochemical Properties of Novel Aqueous Blends of (2-Diethylaminoethanol + Piperazine) for CO2 Appropriation,Journal of Chemical & Engineering Data

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Vapor–Liquid Equilibrium and Physicochemical Properties of Novel Aqueous Blends of (2-Diethylaminoethanol + Piperazine) for CO2 Appropriation
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2017-06-06 00:00:00 , DOI: 10.1021/acs.jced.6b00856
S. Adak ₁ , M. Kundu ₁

Affiliation

Equilibrium solubility of CO₂ in aqueous blends of 0.23 mol/kg piperazine (PZ) + 0.92 mol/kg 2-diethylaminoethanol (DEAE), 0.52 mol/kg PZ + 2.08 mol/kg DEAE, 0.92 mol/kg PZ + 3.68 mol/kg DEAE, and 1.49 mol/kg PZ + 5.96 mol/kg DEAE in the low pressure region of 0.1–65 kPa and at temperatures of 303.15–323.15 K is reported in the present article. A thermodynamic model is developed, which correlates the experimentally generated data on CO₂ solubility in the newly proposed blend with an excellent agreement. Density and viscosity of DEAE + PZ + H₂O have been measured at temperatures of 303.1–323.1 K and total amine mass percentage in all the blends are kept constant at 0.3. The mass % ratios of PZ/DEAE considered for measurements were 3:27, 6:24, 9:21, and 12:18. pK_a of aqueous DEAE solution are reported in 298.15–333.15 K temperature range. Generated density data are correlated using Redlich–Kister equation, Grunberg and Nissan, and Gonzalez-Olmos, and Iglesias type models and viscosity data are correlated using Grunberg and Nissan model.

中文翻译：

汽液平衡和CO（2-二乙基哌嗪+）的新型含水共混物的物理化学性质₂拨款

CO ₂在0.23 mol / kg哌嗪（PZ）+ 0.92 mol / kg 2-二乙基氨基乙醇（DEAE），0.52 mol / kg PZ + 2.08 mol / kg DEAE，0.92 mol / kg PZ + 3.68 mol /本文报道了在0.1–65 kPa的低压区域和303.15–323.15 K的温度下，千克DEAE和1.49 mol / kg PZ + 5.96 mol / kg DEAE。建立了一个热力学模型，该模型将实验生成的有关新提出的共混物中CO ₂溶解度的数据与极好的一致性相关联。DEAE + PZ + H _2的密度和粘度在303.1–323.1 K的温度下测得O，所有混合物中的总胺质量百分比保持恒定在0.3。考虑用于测量的PZ / DEAE的质量％比率为3：27、6：24、9：21和12:18。据报道，DEAE水溶液的p K _a在298.15–333.15 K的温度范围内。生成的密度数据使用Redlich-Kister方程，Grunberg和Nissan以及Gonzalez-Olmos进行关联，而Iglesias类型模型和粘度数据使用Grunberg和Nissan模型进行关联。

更新日期：2017-07-12

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