نتایج جستجو برای: operating condition

تعداد نتایج: 464076  

Journal: :journal of particle science and technology 0
nader rostamizadeh department of chemistry, science and research branch, islamic azad university, tehran,iran mirabdullah seyedsadjadi department of chemistry, science and research branch, islamic azad university, tehran,iran s. a. sadjadi institute of water and energy, sharif university of technology, p.o. box 11365-8639, tehran, i. r. iran

this paper investigates hollow and porous alumina nanospheres that were previously synthesized to be used for the dehydration of methanol to dimethyl ether (dme). as hollow nanostructures possess characteristics such as low density and high surface to volume ratio, their catalytic activity between hollow and porous structure is compared. for this purpose, three most important parameters (acidit...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 1989

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