A highly-efficient hybrid technique-Membrane-assisted gas absorption for ammonia recovery after the Haber-Bosch process

被引：27

作者：

Petukhov, Anton N. ^{[1
,2
]}

Atlaskin, Artem A. ^{[1
,2
]}

Kryuchkov, Sergey S. ^{[1
]}

Smorodin, Kirill A. ^{[1
]}

Zarubin, Dmitriy M. ^{[1
]}

Petukhova, Anastasia N. ^{[1
]}

Atlaskina, Maria E. ^{[1
,2
]}

Nyuchev, Alexandr V. ^{[3
]}

Vorotyntsev, Andrey V. ^{[1
]}

Trubyanov, Maxim M. ^{[1
]}

Vorotyntsev, Ilya V. ^{[1
,2
]}

Vorotynstev, Vladimir M. ^{[1
]}

机构：

[1] Nizhnii Novgorod State Tech Univ, Lab Membrane & Catalyt Proc, 24 Minin Str, Nizhnii Novgorod 603950, Russia

[2] Mendeleev Univ Chem Technol Russia, Miusskaya Sq 9, Moscow 125047, Russia

[3] NI Lobachevsky State Univ Nizhny Novgorod, Nizhnii Novgorod 603950, Russia

来源：

CHEMICAL ENGINEERING JOURNAL | 2021年 / 421卷

基金：

俄罗斯科学基金会;

关键词：

Membrane-assisted gas absorption; Ammonia recovery; Separation efficiency; Deep eutectic solvents; IONIC LIQUIDS; SEPARATION; TEMPERATURE; MIXTURES; PURIFICATION; PERMEATION; WATER; SOLUBILITY; DIFFUSION; REMOVAL;

D O I：

10.1016/j.cej.2020.127726

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The present study deals with the first complex experimental evaluation of the unique hybrid technique - membrane-assisted gas absorption for NH3 recovery applications. In order to determine the influence of technological parameters and compare different absorbents impact, a special lab-scale test platform was designed and coupled with the specific back-flush-to-vent gas chromatographic technique. The efficiency of ammonia capture was evaluated during the separation of ternary gas mixture consisting of H2, N2 and NH3. The wide range of absorbents and gas separation membranes was screened to determine the potentially efficient combinations of membrane-absorbent systems. As a result, the poly-(vinyltrimethylsilane) (PVTMS) commercially available gas separation membrane covered with deep eutectic solvents (DES) based on ammonium thiocyanate (NH4SCN) combined with glycerol (G), urea (U) and ethylene glycol (EG) was used as a combined system for further evaluation in the NH3 recovery process. It was experimentally defined, that the membrane-assisted gas absorption technique provides efficient recovery of NH3, and its concentration in permeate reach 98.96 vol% in the case of NH4SCN:G. Nevertheless, that DES couldn't provide stable efficiency in contrast with less-viscosity DESes, such as NH4SCN:U and NH4SCN:EG. It was found that these absorbents allow achieving up to 98.42 and 98.7 vol % of NH3 in permeate.

引用

页数：14

共 75 条

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