Removal of SO2 over modified activated coke desulfurizers at low temperatures

Removal of SO2 over modified activated coke desulfurizers at low temperatures A novel modified activated coke (AC) desulfurizer prepared by impregnation of metal oxides (Fe, Cu, Ni, Mn, Co), rare earth elements (Ce, La), and potassium hydroxide (KOH) was investigated. Experimental results showed that the desulfurization (DeSO2) efficiency of the ACKOH impregnation of Fe (Fe/ACKOH) was higher than other samples with impregnation of metal oxides at 120 °C and a space velocity of 8,000 h−1. At the same operating conditions, the Ce/ACKOH was more effective in two samples with impregnation of rare earth elements. As the Fe content was increased from 3 to 5 % (mass %), DeSO2 efficiency increased significantly, and kept stable at higher Fe contents (10 %). The effect of desulfurization temperature was also investigated, which revealed that, with increasing temperature from 80 to 120 °C, the DeSO2 efficiency gradually increases, while the DeSO2 efficiency decreased with increasing temperature from 120 to 140 °C. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Removal of SO2 over modified activated coke desulfurizers at low temperatures

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Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1183-3
Publisher site
See Article on Publisher Site

Abstract

A novel modified activated coke (AC) desulfurizer prepared by impregnation of metal oxides (Fe, Cu, Ni, Mn, Co), rare earth elements (Ce, La), and potassium hydroxide (KOH) was investigated. Experimental results showed that the desulfurization (DeSO2) efficiency of the ACKOH impregnation of Fe (Fe/ACKOH) was higher than other samples with impregnation of metal oxides at 120 °C and a space velocity of 8,000 h−1. At the same operating conditions, the Ce/ACKOH was more effective in two samples with impregnation of rare earth elements. As the Fe content was increased from 3 to 5 % (mass %), DeSO2 efficiency increased significantly, and kept stable at higher Fe contents (10 %). The effect of desulfurization temperature was also investigated, which revealed that, with increasing temperature from 80 to 120 °C, the DeSO2 efficiency gradually increases, while the DeSO2 efficiency decreased with increasing temperature from 120 to 140 °C.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Apr 12, 2013

References

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