Properties of sulfur sorbents containing dispersed nickel in an Al2O3 matrix

Autor:	K. Hammerbeck, T. H. Gardner, L. D. Gasper-Galvin, M. Jhunjhunwala, J. H. Swisher
Rok vydání:	1996
Předmět:	chemistry.chemical_classification Materials science Sulfide Mechanical Engineering Inorganic chemistry chemistry.chemical_element Zinc Sulfur Flue-gas desulfurization Nickel Adsorption chemistry Mechanics of Materials Coal gas Coal gasification General Materials Science
Zdroj:	Journal of Materials Engineering and Performance. 5:247-255
ISSN:	1544-1024 1059-9495
DOI:	10.1007/bf02650895
Popis:	For advanced coal gasification systems, regenerable sorbents are being developed to remove sulfur (S) from the hot product gas prior to its use in gas turbines and high-temperature fuel cells. Whereas zinc (Zn) base sorbents are attractive for these applications, they have limitations in high-temperature capability and in durability. Materials containing dispersed nickel (Ni) in an Al2O3 matrix have the potential to be better in both respects. Their main limitation is that they do not reduce H2S concentrations to the low parts per million (ppm) level. Results are reported here on the second phase of a program on dispersed Ni sorbents. Included are the results of crush strength, thermogravimetric analysis, and fixed-bed reactor experiments. An important conclusion drawn from the results is that chemisorption of H2S plays a major role in reducing its concentration in gas exiting the bed below the levels expected from the Ni-Ni sulfide equilibrium.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6ccbc27e9ac401bca83afc2ac7ef7d00 https://doi.org/10.1007/bf02650895 Zobrazit plný text záznamu Full text from SpringerLink