Direct reaction of silicon with ethyl chloride in a fluidized bed reactor

Article


Hamawand, Ihsan, Mohammed, Thamer and Jalhoom, Moayyed G.. 2009. "Direct reaction of silicon with ethyl chloride in a fluidized bed reactor." International Journal of Chemical Reactor Engineering. 7. https://doi.org/10.2202/1542-6580.1869
Article Title

Direct reaction of silicon with ethyl chloride in a fluidized bed reactor

ERA Journal ID3894
Article CategoryArticle
AuthorsHamawand, Ihsan (Author), Mohammed, Thamer (Author) and Jalhoom, Moayyed G. (Author)
Journal TitleInternational Journal of Chemical Reactor Engineering
Journal Citation7
Article NumberA9
Number of Pages27
Year2009
Place of PublicationGermany
ISSN1542-6580
Digital Object Identifier (DOI)https://doi.org/10.2202/1542-6580.1869
Web Address (URL)https://www.degruyter.com/document/doi/10.2202/1542-6580.1869/html
Abstract

The aim of this work was to study the production of diethyldichlorosilane [(C2H5)2SiCl2]. The catalytic reaction of silicon (Si) of purity 99.9% with ethylchloride
(C2H5Cl) was investigated in a fluidized bed reactor. Cuprous chloride (CuCl) of purity 99.9% was used as a catalyst of the reaction. Gas chromatography was used on-line for analysis of the reaction products. The experimental work was carried out using a stainless steel column of 5cm internal diameter and 50cm height as the fluidized bed reactor.

The experiments start with different bed temperatures between 200 and 300C to identify the optimum reaction temperature. This temperature was found to be at 250 C, which resulted in the maximum of ethylchloride (EtCl) conversion and diethyldichlorosilane yield. In fifteen runs, the variables considered were sieveanalysis average particle size dp (50,100, and 150 μm), contact mass weight wt (100 – 200 gm) and reacted gas velocity Ug (1.41 – 2.83 cm/s). It was found that the conversion of EtCl increases with decreasing reacted gas velocity, increasing bed contact mass and particle diameter. The yield of Et2SiCl2 was not affected by these variables, but bed temperature was found to have a significant affect.

Two mathematical models, the Orcut model and the continuous CSTR model were used to predict theoretical data for the conversion of EtCl. The comparison between the experimental and the theoretical data showed good agreement with an
absolute error of less than 9%.

Keywordsorganohalosilane; direct process; organosilicon; ethylchlorosilane; diethyldichlorosilane
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020401207. Fundamental and theoretical fluid dynamics
401299. Fluid mechanics and thermal engineering not elsewhere classified
400408. Reaction engineering (excl. nuclear reactions)
Public Notes

File reproduced in accordance with the copyright policy of the publisher/author.

Institution of OriginUniversity of Southern Queensland
Byline AffiliationsMonash University
University of Technology, Iraq
Ibn Sina State Company, Iraq
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