An experimental study for H2S and CO2 removal via caustic scrubbing system

被引：33

作者：

Uresin, Ersin ^{[1
]}

Sarac, Halil Ibrahim ^{[2
]}

Sarioglan, Alper ^{[1
]}

Ay, Siringul ^{[1
]}

Akgun, Fehmi ^{[1
]}

机构：

[1] TUBITAK Marmara Res Ctr, Energy Inst, TR-41470 Gebze, Kocaeli, Turkey

[2] Kocaeli Univ, Dept Mech Engn, Kocaeli, Turkey

来源：

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION | 2015年 / 94卷

关键词：

Gas clean up; Packed bed gas scrubbers; Hydrogen sulfide removal; CO2; removal; NaOH; Static mixer; HYDROGEN-SULFIDE REMOVAL; SIMULTANEOUS ABSORPTION; GAS; INTENSIFICATION; PEROXIDE; MIXTURES; AMMONIA; SULFUR; PLANT;

D O I：

10.1016/j.psep.2014.06.013

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study, removal of hydrogen sulfide (H2S) and carbon dioxide (CO2) from simulated syngas has been studied on one column scrubbing system. Gas flow rate as a measure of gas residence time and superficial gas velocity, gas composition, inlet H2S load, flow modes (countercurrent and cocurrent) and packing geometry were the parameters in the design and/or operation of an acid gas scrubber system. Better H2S scrubbing efficiencies have been obtained in countercurrent flow mode than that of cocurrent flow mode. When accordingly designed, static mixer with its superior performance on H2S removal overweighed to structured packings. The coexistence of CO2 and H2S has been shown to increase the sodium hydroxide (NaOH) consumption along the scrubber column thereby decreasing the H2S removal efficiency at higher H2S loads. The gas residence time as changing with the gas velocity was found to be more dominant on acid gas removal efficiency than the effect of superficial gas velocity within the experimented range. A gas residence times of equal or above 3s were seemed to be closer to the optimum point. (C) 2014 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

引用

页码：196 / 202

页数：7

共 20 条

[1]

Ballaguet J.P., 2003, PETROL TECHNOL Q SUM, P109

[2] WET SCRUBBING INTENSIFICATION APPLIED TO HYDROGEN SULPHIDE REMOVAL IN WASTE WATER TREATMENT PLANT [J].

Biard, Pierre-Francois ;

Couvert, Annabelle ;

Renner, Christophe ;

Levasseur, Jean-Pierre .

CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 2010, 88 (04) :682-687

[3] NUMERICAL-CALCULATION OF SIMULTANEOUS ABSORPTION OF H2S AND CO2 IN AQUEOUS HYDROXIDE SOLUTIONS [J].

BONTOZOGLOU, V ;

KARABELAS, AJ .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1991, 30 (12) :2598-2603

[4] Absorption of H2S in NaOCl caustic aqueous solution [J].

Chen, L ;

Huang, J ;

Yang, CL .

ENVIRONMENTAL PROGRESS, 2001, 20 (03) :175-181

[5] Design of a new compact scrubber for deodorisation [J].

Couvert, A. ;

Sanchez, C. ;

Laplanche, A. ;

Renner, C. ;

Levasseur, J. -P. .

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2008, 47 (9-10) :1793-1798

[6] Scrubbing intensification for sulphur and ammonia compounds removal [J].

Couvert, A. ;

Sanchez, C. ;

Laplanche, A. ;

Renner, C. .

CHEMOSPHERE, 2008, 70 (08) :1510-1517

[7] Treatment of odorous sulphur compounds by chemical scrubbing with hydrogen peroxide - Application to a laboratory plant [J].

Couvert, A. ;

Charron, I. ;

Laplanche, A. ;

Renner, C. ;

Patria, L. ;

Requieme, B. .

CHEMICAL ENGINEERING SCIENCE, 2006, 61 (22) :7240-7248

[8]

Dang V.J., 1998, ENTROPIE, V34, P3

[9] Selectivity study of H2S and CO2 absorption from gaseous mixtures by MEA in packed beds [J].

Godini, Hamid Reza ;

Mowla, Dariush .

CHEMICAL ENGINEERING RESEARCH & DESIGN, 2008, 86 (4A) :401-409

[10] Selective absorption of H2S from gas mixtures into aqueous solutions of blended amines of methyldiethanolamine and 2-tertiarybutylamino-2-ethoxyethanol in a packed column [J].

Lu, Jian-Gang ;

Zheng, You-Fei ;

He, Du-Liang .

SEPARATION AND PURIFICATION TECHNOLOGY, 2006, 52 (02) :209-217

← 1 2 →