Frontiers of Chemical Science and Engineering >

2010 , Vol. 4 >Issue 4: 435 - 440

DOI: https://doi.org/10.1007/s11705-010-0506-9

RESEARCH ARTICLE

Sulfidation/regeneration multicycle testing of nickel-modified ZnFe2O4 desulphurization sorbent

  • Wei LI ,
  • Jinju GUO ,
  • Jiejie HUANG ,
  • Jiaotao ZHAO
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  • Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

Received date: 15 Jan 2010

Accepted date: 12 Apr 2010

Published date: 05 Dec 2010

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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Abstract

A commercial metal oxide sorbent for the desulphurization of coal-derived gas requires high desulphurization reactivity, mechanical strength, ability to regenerate, and stability to endure many sulfidation-regeneration cycles. In this paper, the sulfur capacity and multiple cycles of a nickel-modified ZnFe2O4 sorbent prepared by the sol-gel auto-combustion method were measured in a fixed-bed reactor at middle temperature of 300°C (sulfidation temperature) and 500°C (regeneration temperature). Also, the BET surface area, pore volume, average pore diameter and X-ray diffraction (XRD) patterns of the sorbent through multicycles were studied. Multicycle runs indicate that the sulfidation reactivity decreases slightly during the second cycle and keeps steady in the following cycles. The results indicate that the nickel-modified ZnFe2O4 keeps high reactivity and structural stability in the multicycle testing of sulfidation/regeneration.

Key words： hot gas desulphurization; nickel-modified ZnFe2O4; sulfidation/regeneration

Cite this article

Wei LI , Jinju GUO , Jiejie HUANG , Jiaotao ZHAO . Sulfidation/regeneration multicycle testing of nickel-modified ZnFe2O4 desulphurization sorbent[J]. Frontiers of Chemical Science and Engineering, 2010 , 4(4) : 435 -440 . DOI: 10.1007/s11705-010-0506-9

Acknowledgements

This work was subsidized by the Special Funds for Major State Basic Research Projects of China (2005CB221203) and the National Natural Science Foundation of China (Grant No. 20706055).

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