Particle separating catalytic chemical reactor and particle separator

An initial kinetic particle separator for separating particles from an inlet fluid stream of a catalytic reactor comprising a perforated inlet differ having outward perforations, a particle settling chamber, a kinetic particle separator, a collection chamber, and a gas exit channel, the kinetic particle separator comprising an acceleration channel, a flow splitting chamber shaped to subject the inlet fluid stream to multiple changes in direction, and a particle deceleration chamber comprising an angled impingement wall for guiding separated particles from the deceleration chamber to the collection chamber,

• wherein the particle settling chamber is located downstream of the perforated inlet diffuser and upstream of the kinetic particle separator, and wherein the particle settling chamber comprises a transfer chimney for transition of the fluid stream from the particle settling chamber to the kinetic particle separator, the transfer chimney arranged in the particle settling chamber and configured to direct the fluid stream from the outward perforations of the perforated inlet diffuser to the acceleration channel of the kinetic particle separator.