Desulfurization intensification by ionic liquid in a rotating packed bed

被引：18

作者：

Liu, Ya-Zhao ^{[1
,2
]}

Wu, Wei ^{[1
,2
]}

Liu, Yi ^{[1
,2
]}

Li, Bei-Bei ^{[1
,2
]}

Luo, Yong ^{[1
,2
]}

Chu, Guang-Wen ^{[1
,2
]}

Zou, Hai-Kui ^{[1
,2
]}

Chen, Jian-Feng ^{[1
,2
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, Minist Educ High Grav Engn & Technol, Res Ctr, Beijing 100029, Peoples R China

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2020年 / 148卷

关键词：

Rotating packed bed; Ionic liquid; SO2; Desulfurization efficiency; Process intensification; EFFICIENT CAPTURE; MASS-TRANSFER; FLUE-GAS; HIGHLY EFFICIENT; SO2; ABSORPTION; REMOVAL; SOLUBILITY; DIOXIDE; MIXTURE;

D O I：

10.1016/j.cep.2019.107793

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Desulfurization by ionic liquids (ILs) has attracted wide attention since ILs as green solvents can be recycled after desorption. However, the high viscosities of ILs limit the sulfur dioxide (SO2) absorption in gas-liquid contactors. In this work, a rotating packed bed (RPB) with excellent mass transfer performance was employed for SO2 removal with caprolactam tetrabutyl ammonium bromide ([CPL] [TSAR]) IL. Effects of rotational speed, temperature, liquid flow rate, and gas flow rate on the desulfurization efficiency were systematically studied. By optimization of the solvents, the desulfurization efficiency remains almost unchanged after multiple absorption and regeneration cycles, and the energy consumption during desorption process can also be reduced. These results indicated that the RPB combined with ILs has promising prospects for SO2 absorption and desorption in sulfuric acid plants.

引用

页数：7

共 46 条

[1]

[Anonymous], SEP PURIF TECHNOL

[2] Flue gas treatment for SO2 removal with air-sparged hydrocyclone technology [J].