ANALYSIS OF THE COMPOSITION OF A GAS OR A GAS FLOW IN A CHEMICAL REACTOR AND METHOD FOR PRODUCING CHLOROSILANES IN A FLUIDIZED BED REACTOR

摘要

The invention relates to a method for analyzing the composition of a gas or a gas flow, containing AlCl3, in a chemical reactor, comprising removing AlCl3 from the gas and then examining the gas by means of gas chromatography or spectroscopy. The invention also relates to a method for producing chlorosilanes in a fluidized bed reactor having a reactor height H0, wherein fed HCl is reacted with silicon, characterized in that a temperature profile in the fluidized bed reactor is greater than S1(H/H0) = (a1–b1)*(1/(1+exp(–c1((H/H0)–d1))))+b1 and less than S2(H/H0) = (a2–b2)*(1/(1+exp(–c2((H/H0)–d2))))+b2, wherein a1 = 100 °C, a2 = 300 °C, b1 = 300 °C, b2 = 400 °C, c1 = 50, c2 = 20, d1 = 0.2, and d2 = 0.8.