TURBULENT FLUIDIZED-BED REACTOR, DEVICE, AND METHOD USING OXYGEN-CONTAINING COMPOUND FOR MANUFACTURING PROPENE AND C4 HYDROCARBON

    公开(公告)号:EP3530643A1

    公开(公告)日:2019-08-28

    申请号:EP16919195.4

    申请日:2016-10-19

    摘要: The present invention refers to a turbulent fluidized-bed reactor, device and method for preparing propylene and C4 hydrocarbons from oxygen-containing compounds. The device comprises the turbulent fluidized-bed reactor and a fluidized-bed regenerator for regenerating a catalyst. The method includes: a) feeding a raw material containing the oxygen-containing compounds from n reactor feed distributors to a reaction zone of the turbulent fluidized-bed reactor, and contacting the raw material with a catalyst, to generate a stream containing target product and a spent catalyst containing carbon; b) sending the stream discharged from the turbulent fluidized-bed reactor containing target product into a product separation system, obtaining propylene, C4 hydrocarbons, light fractions and the like after separation, returning 70 wt.% or more of the light fractions to the reaction zone of the turbulent fluidized-bed reactor from the reactor feed distributor at the bottom-most of the turbulent fluidized-bed reactor, and reacting ethylene and the oxygen-containing compounds to perform an alkylation reaction in presence of the catalyst, to produce products of propylene and the like. The method and device of the present invention improve the reaction rate of ethylene alkylation, and the unit volume production capacity of reactor is high.

    MOLECULAR SIEVE-BASED CATALYST MODIFICATION APPARATUS, AND METHOD

    公开(公告)号:EP3718623A1

    公开(公告)日:2020-10-07

    申请号:EP17933606.0

    申请日:2017-11-30

    摘要: The present application discloses a molecular sieve-based catalyst modification apparatus. Said apparatus comprises a feeding unit 1, a modification unit 2 and a cooling unit 3 which are connected in sequence; the feeding unit comprises a catalyst feeding unit 11 and a modifier feeding unit 12, the catalyst feeding unit and the modifier feeding unit respectively introduce a catalyst and a modifier into the modification unit 2, and the catalyst and the modifier are discharged from the modification unit after sufficient reaction and enter the cooling unit 3 for cooling. The present application further discloses a use method for the molecular sieve-based catalyst modification apparatus. Said use method comprises: introducing, by means of the feeding unit 1, catalyst and modifier into the modification unit 2; after the catalyst is modified by the modifier in the modification unit 2, discharging the catalyst into the cooling unit 3; and after the temperature of the modified catalyst is lowered to a temperature of less than 50 °C in the cooling unit 3, outputting the cooled modified catalyst to an arbitrary material storage apparatus.