Production of Organosilane by The Direct Reaction of Silicon with Methyl Chloride
Engineering and Technology Journal,
2007, Volume 25, Issue 10, Pages 1128-1142
AbstractThe aim of this work is to study the production of organosilane by the
catalytic reaction of Methyl chloride (CH3Cl) with silicon (Si) and using copper
(Cu) as catalyst in a fluidized bed reactor. Gas chromatographic (GC) technique
was used on-line for analysis of the reacted gas.
The experimental work was carried out using columns with dimensions 5 cm
internal diameter and 50 cm height stainless steel used as a fluidized bed reactor.
Gas distributor was fitted at the bottom of column with 25 holes of 0.1cm hole
The reaction started with experiments at different bed temperatures (200-
400) oC and the catalyst used is only copper (Cu) in two different percent (10 %
and 15 % of the silicon) in order to anticipate the optimum temperature and
catalyst value required for the best conversion of organosilane, these two
variables were kept constant for the remaining experiments.
Experiments were performed to reflect the effect of each of these variables:
particle diameter, bed height and reacted gas velocity on the organosilane
production. It was found that organosilane conversion was the highest at 350 oC
and 15% copper. The gas velocity at a value little more than minimum
fluidization velocity is gave better conversion than low velocity that gave fixed
bed or high velocity and that gave turbulent fluidization, higher level of contact
mass, and finally higher particle diameter this gives homogenous fluidization
concerning the reacted gas velocity.
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