method and abscheidesystem for removal of particles from prozessgasen chemical or petrochemical plants

摘要

The invention relates to a process and a separation system for removing particles, in particular soot particles, from particle-containing process gas streams occurring in chemical or petrochemical plants. According to the invention, the particle removal is carried out in a partly thermally regenerable separation system. The particles are advantageously removed from the gas stream in a two-stage separation system, the first stage being composed of centrifugal separators, preferably multicyclones, and the second stage being composed of fine filters made of sintered metals, preferably of ferritic sintered metals. For the regeneration, the temperature is increased to a value above the ignition temperature of soot and, if required, an oxygen-containing auxiliary gas is added. The regeneration is preferably carried out periodically.