SEPARATION DEVICE FOR A REACTOR WITH A FLUIDISED CATALYST BED, A REACTOR-REGENERATOR UNIT, A METHOD OF PRODUCING OLEFINS AND A METHOD OF PRODUCING AROMATIC HYDROCARBONS Russian patent published in 2019 - IPC B01J8/18 B01J8/26 C07C1/20 

FIELD: chemistry.

SUBSTANCE: present invention relates to chemical engineering. Described is a separation device for a reactor with a fluidised bed of a catalyst used to obtain olefins or aromatic hydrocarbons, comprising: preliminary purification separator for primary cleaning of gas from solid particles, which is connected to reactor outlet; a vertically arranged damper vessel having a lower region, to which the preliminary purification separator solid particles outlet is communicated, and an upper region to which the preliminary purification separator gas outlet is communicated; and a final purification separator for fine purification of gas from solid particles, having an inlet in communication with the upper region of the damper capacitance, and a solid particle outlet communicating with the lower region of the damper capacitance; wherein separation device is made so that product containing catalyst particles carried by it from reactor is supplied to separator of preliminary purification, where most solid particles of catalyst is separated from gas and sent to lower area of damping capacity, and the product carrying away remaining catalyst particles is directed into the upper region of the damper vessel and into the final purification separator, where remaining catalyst particles are separated from the gas and sent to the lower region of the damper vessel to obtain final purification of the end product at the separator outlet; wherein the upper region of the damper capacity is provided with an inlet channel for communicating with the gas outlet of preliminary purification separator, wherein the inlet channel is tangential to the side wall of the upper region. Described is a reactor-regenerator unit for producing olefins or aromatic hydrocarbons, comprising said separation device, a reactor with a fluidised catalyst bed and a regenerator for catalyst regeneration, wherein: reactor has inlet zone located at the bottom, outlet zone located at the top and reaction zone located between inlet and outlet zones, wherein outlet zone is interconnected with separator of preliminary cleaning, which is part of separation device, regenerator has located below loading zone and located on top unloading zone, wherein loading zone is located lower than lower area of damping capacity, and unloading zone is located higher than inlet zone of reactor; lower area of the damper tank is connected to the regenerator loading zone through the second pipe, and the regenerator unloading zone is connected to the inlet zone of the reactor through the third pipe. Method of producing olefins using the described reactor-regenerator unit, in which the inlet zone of the reactor is located lower than the lower region of the damper capacitance, and the lower region of the damper tank is connected to the inlet zone of the reactor through the first pipe, is characterized by that: in the reaction zone of the reactor, a reaction of converting the oxygenate-containing feed in the presence of a catalyst is carried out; obtained product and entrained catalyst particles are directed through outlet zone of reactor to separation device; separation of catalyst particles from the product is separated from the product, part of the separated catalyst is fed directly into the inlet zone of the reactor, the rest of the catalyst is regenerated and fed into the inlet zone of the reactor, particles of the unreduced and regenerated catalyst are mixed in the inlet zone of the reactor and the mixture of catalyst particles is fed into the reaction reactor zone. Method of producing aromatic hydrocarbons using said reactor-regenerator is characterized in that: reacting the oxygenate-containing feed in the presence of a catalyst in the reaction zone of the reactor; obtained product and entrained catalyst particles are directed through outlet zone of reactor to separation device; separation of the catalyst particles entrained therefrom is separated from the product; the catalyst separated from the product is regenerated and fed into the inlet and then into the reaction zone of the reactor.

EFFECT: reduction of the impact action of the product on the damper tank, which reduces its vibration, and also increases efficiency of separation of gas and solid particles.

40 cl, 1 tbl, 6 dwg