Comparative study of hydrogen sulfide adsorption by using alkaline impregnated activated carbons for hot fuel gas purification
Conference proceedings article
Authors/Editors
Strategic Research Themes
No matching items found.
Publication Details
Author list: Sitthikhankaew R., Predapitakkun S., Kiattikomol R., Pumhiran S., Assabumrungrat S., Laosiripojana N.
Publisher: Elsevier
Publication year: 2011
Volume number: 9
Start page: 15
End page: 24
Number of pages: 10
ISSN: 1876-6102
eISSN: 1876-6102
Languages: English-Great Britain (EN-GB)
View in Web of Science | View on publisher site | View citing articles in Web of Science
Abstract
Biogas, natural gas, and synthesis gas from coal gasification contain hydrogen sulfide (H2S) that is highly toxic for human and corrosive for machine. H2S must be removed from fuel gases prior utilization. The objective of this research was to compare the adsorption of H2S by using commercial and alkaline impregnated activated carbons. The commercial and alkaline impregnated activated carbons were tested by the temperature program adsorption of H2S at 30ฐC and 550ฐC. At high temperature of adsorption, alkaline activated carbons adsorbed H2S significantly higher than commercial activated carbon (in the range of 3-29 times higher depending on modification method). Furthermore, the concentration of H2S came out at the outlet gas after treated by the KOH and Na2CO3 impregnated activated carbons was less than 30 ppmv, which was safe for utilizing in mechanical and power engine. ฉ 2011 Published by Elsevier Ltd.
Keywords
Alkaline impregnation
Contact Information