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Ultra‐deep desulfurization adsorbents for hydrotreated diesel with magnetic mesoporous aluminosilicates
Author(s) -
Li Wangliang,
Tang Huang,
Zhang Ting,
Li Qiang,
Xing Jianmin,
Liu Huizhou
Publication year - 2010
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.12070
Subject(s) - flue gas desulfurization , mesoporous material , adsorption , chemical engineering , aluminosilicate , coprecipitation , microporous material , materials science , diesel fuel , sulfur , specific surface area , chemistry , inorganic chemistry , nuclear chemistry , mineralogy , catalysis , organic chemistry , metallurgy , engineering
Abstract Magnetic mesoporous aluminosilicates (MMAS) were synthesized by hydrothermal method and applied as ultra‐deep desulfurization adsorbents for hydrotreated diesel. The size of oleic‐coated magnetic Fe 3 O 4 nanoparticles prepared by coprecipitation method was about 20 nm. MMAS shows better desulfurization properties for removal of sulfur compounds than NaY and MCM‐41. The amount of Fe 3 O 4 nanoparticles has significant effects on specific surface area/pore volume and acidic properties, thus, can affect the desulfurization properties of MMAS. Desulfurization properties of MMAS can be improved with the increase of temperature from 30–70°C and decrease the oil to adsorbent ratio. With the increase of Fe 3 O 4 content, adsorption capacity first increased and then decreased. The sulfur adsorption of MMAS was due to the synergetic effect of strong molecular affinity of the magnetite to the sulfur compound and large surface area/pore volume of the mesoporous aluminosilicates. © 2009 American Institute of Chemical Engineers AIChE J, 2010