Influence of inlet structure parameters of dispersed phase on velocity field of liquid-liquid cyclone reactor
In order to solve many problems in industrial production of ionic liquid alkylation process,such as too long residence time and increased side reaction products,a liquid-liquid cyclone reactor which can shorten the reaction time was directly used in the process,and the integration of reaction and separation was realized by using the cyclone reactor.The influence of inlet parameters of dispersed phase structure on the velocity field in the cyclone reactor was studied by numerical simulation.The results show that the increase of the number of tangential slits(the main part of the inlet of dispersed phase)leads to the increase of the tangential velocity of dispersion,but it has little effect on the axial velocity,and the tangential slit of 20 mm-6 is the best.When the center of dispersed phase inlet,the center of buffer cavity and the center of tangential slot are set on the same straight line,both tangential velocity and axial velocity decrease.The closer the tangential slot is to the guided vane,the greater the tangential velocity is under the same cross section,and the greater the axial velocity is in the stable non-vortex region.Finally,the comparative analysis shows that the height-number is 30 mm-4,and the velocity field with tangential slot position of z=82-112 mm and axial section position of 80 mm has the highest mixing degree and the best effect.The result provides a theoretical basis for the optimization of structural parameters when cyclone reactor is used in ionic liquid alkylation reaction.
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