Fluidized bed test system

Abstract

The invention relates to a fluidized bed test system. The system is characterized in that a, a top of a fluidized bed (1) is connected with a spherical tank (5), and a cyclone separator (7) is connected in the spherical tank; b, an air outlet pipe (9) at the top of the cyclone separator is connected to an inlet (11) of a cooler (14) through a pipeline (10), and a cooling row tube (19a) is arrangedin a cooling section (19) at an upper part of the cooler, and a cooler shell is provided with an oil bath inlet (18) and an oil bath outlet (12) so as to forcibly circulate and control a temperatureof the cooling section; and c, an impurity collecting section (16) at a lower part of the cooler is provided with an electric heater (16a) so as to control a cooling rate of the collecting section. The system has the following advantages that the fluidized bed is directly connected with the cyclone separator to realize efficient separation of a reaction generated gas and a catalyst and effectivelyprevent the catalyst from being brought to the cooler; and the cooler adopts the cooling section and the impurity collecting section so that separation efficiency is effectively improved, a whole catalyst evaluation test is efficiently operated, and a test result can be quickly obtained.

Description

technical field [0001] The invention belongs to the field of chemical testing devices and relates to a fluidized bed testing system. Background technique [0002] At present, the fluidized bed reaction process has been widely used in petrochemical, coal chemical, fine chemical and other fields. It has the advantages of easy temperature control, easy continuous regeneration of rapidly deactivated catalysts, and easy realization of large-scale production. Applications in the chemical industry are gaining more and more attention. In the melamine catalyst evaluation test, it is necessary to use a fluidized bed reactor, so that the catalyst and the reactant liquid urine are fully mixed, and react at normal pressure and high temperature to produce melamine. Adopt fixed bed in the general catalyst evaluation test, as: the device that patent CN101943689A discloses is used for forming catalyst hydrothermal treatment and fixed fluidized bed catalyst evaluation, it is difficult to eva...

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