Removal of COS in coke-oven gas by NiO/ZnO-Al<sub>2</sub>O<sub>3</sub> adsorption

ZHOU Guang-lin; WANG Mei-qing; WANG Xiao-sheng; JIANG Wei-li; ZHOU Hong-jun

Volume 43 Issue 04

Apr. 2015

Turn off MathJax

Article Contents

Article Navigation > Journal of Fuel Chemistry and Technology > 2015 > 43(04): 470-475

ZHOU Guang-lin, WANG Mei-qing, WANG Xiao-sheng, JIANG Wei-li, ZHOU Hong-jun. Removal of COS in coke-oven gas by NiO/ZnO-Al2O3 adsorption[J]. Journal of Fuel Chemistry and Technology, 2015, 43(04): 470-475.

Citation:

ZHOU Guang-lin, WANG Mei-qing, WANG Xiao-sheng, JIANG Wei-li, ZHOU Hong-jun. Removal of COS in coke-oven gas by NiO/ZnO-Al₂O₃ adsorption[J]. Journal of Fuel Chemistry and Technology, 2015, 43(04): 470-475.

Citation:

PDF( 622 KB)

Removal of COS in coke-oven gas by NiO/ZnO-Al₂O₃ adsorption

Institute of New Energy, China University of Petroleum(Beijing), Beijing 102249, China

Received Date: 2014-10-30
Publish Date: 2015-04-30

Abstract

Abstract

The NiO/ZnO-Al₂O₃ adsorbent was prepared by incipient method and characterized by XRD and mercury porosimeter. The performance of the adsorbent in the removal of COS from the simulated coke-oven gas was tested in a fixed-bed reactor. The results show that the appropriate reaction conditions are 350 ℃, 0.40 MPa and GHSV of 500~1 000 h^-1. The adsorbent could remove COS from 320~450 mg/m³ to 0.5 mg/m³ as well as olefins from 2.3%~4.5% to 0 without changing other component. The breadthrough sulfer capacity is 17.18%. The regeneration test shows that the crystal form, pore structure and sulfer capacity of the regenerated adsorbent have no significant change compared with the fresh adsorbent. A desulfurization mechanism is proposed as follows:first COS is absorbed on the reduced Ni atoms to form NiS via the breaking of the S-C bond, then NiS is transformed to H₂S in the presence of H₂, finally H₂S is captured by ZnO.
- coke-oven gas,
- adsorbent,
- COS,
- olefins,
- desulfurization

FullText(HTML)

References(13)

References

杨柱荣, 蹇守华, 武振林, 杨彦伟. 焦炉气制甲醇原料气净化工艺浅析[J]. 天然气化工, 2011, 36(6):42-45. (YANG Zhu-rong, JIAN Shou-hua, WU Zhen-lin, YANG Yan-wei. Discussion of feed gas purification technology for production of methanol from coke oven gas[J]. Nat Gas Chem Ind, 2011, 36(6):42-45.)

常宏岗, 王荫砃. 胺法脱硫、硫磺回收工艺现状及发展[J]. 石油与天然气化工, 2002, 3l(21):33-36. (CHANG Hong-gang, WANG Yin-dan. Present situation and development trends on amine desulfurization and sulfur recovery technologies[J]. Chem Eng Oil Gas, 2002, 3l(21):33-36.)

牛刚, 黄玉华, 王经. 低温甲醇洗技术在天然气净化过程中的应用[J]. 天然气化工, 2009, 28(2):26-29. (NIU Gang, HUANG Yu-hua, WANG Jing. Application of the cool methanol absorption technology to the natural gas purification process[J]. Nat Gas Chem Ind, 2009, 28(2):26-29.)

王平尧. 湿式氧化法脱硫技术及焦炉煤气脱硫工艺选择[J]. 化肥设计, 2009, 47(3):22-25. (WANG Ping-yao. Wet oxidation method de-sulfur technology and selection for de-sulfur process of coking-oven gas[J]. Chem Fert Des, 2009, 47(3):22-25.)

王会娜, 上官炬, 王晓鹏, 朱永军. 羰基硫催化水解研究进展[J]. 工业催化, 2007, (2):18-21. (WANG Hui-na, SHANG Guan-ju, WANG Xiao-peng, ZHU Yong-jun. Advances in catalytic hydrolysis of carbonyl sulfide[J]. Ind Catal, 2007, (2):18-21.)

WANG H Y, YI H H, NING P, TANG X L, YU L L, HE D, ZHAO S Z. Calcined hydrotalcite-like compounds as catalysts for hydrolysis carbonyl sulfide at low temperature[J]. Chem Eng J, 2011, 166(1):99-104.

ANDREY R, VASILE H, DIDIER T, CATHERINE L, DIDIER A, BERNARD C, PHILIPPE T. Methyl mercaptan and carbonyl sulfide traces removal through adsorption and catalysis on zeolites and layered double hydroxides[J]. Appl Catal A:Gen, 2011, 397 (1/2):218-224.

上官炬, 郭汉贤. 氧化铝基COS、CS₂水解催化剂表面碱性和催化作用[J]. 分子催化, 1997, (11):337-342. (SHANG Guan-ju, GUO Han-xian. The surface basicity and catalysis over the alumina based catalysts for COS and CS₂ hydrolysis[J]. J Mol Catal (China), 1997, (11):337-342.)

柏勇. 铁锰系氧化物脱除合成气中羰基硫的应用基础研究[D]. 上海:华东理工大学, 2011. (BO Yong. Basic application research on iron and manganese oxide for removal of carbonyl sulfide from syngas[D]. Shanghai:East China University of Science and Technology, 2011.)

徐文亚. 羰基硫加氢转化新催化剂的制备与反应性能研究[D]. 辽宁:大连理工大学, 2012. (XU Wen-ya. Preparation and catalytic properties of new catalysts for hydrodesulfurization of carbonyl sulfide[D]. Liaoning:Dalian University of Technology, 2012.)

KIDD R T, LENNON D, MEECH S R. Surface plasmon enhanced substrate mediated photochemistry on roughened silver[J]. J Chem Phys, 2000, 113(18):8276-8282.

任晓光, 李子燕, 王学谦, 陈炜, 柏杨巍, 蒋明, 孙百余. 微氧条件下改性活性炭对羰基硫的吸附性能[J]. 化工进展, 2011, (2):425-431. (REN Xiao-guang, LI Zi-yan, WANG Xue-qian, CHEN Wei, BAI Yang-wei, JIANG Ming, SUN Bai-yu. Treatment of COS by modified activated carbon under low-oxygen content conditions[J]. Chem Ind Eng Prog, 2011, (2):425-431.)

伏义路, 李锡青, 徐小云. CO的吸附和歧化反应及其在变换-甲烷化反应中的作用[J]. 燃料化学学报, 1984, 4(12):316-323. (FU Yi-lu, LI Xi-qing, XU Xiao-yun. The role of chemisorption and disproportionation of CO in shift-methanation reaction[J]. J Fuel Chem Technol, 1984, 4(12):316-323.)

Relative Articles

Supplements(0)

Cited By

Proportional views