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为提高气液吸收-解吸或气液催化反应-催化剂再生过程的效率,减小此类过程的能耗,开发了自交换反应器系统。该系统由两个内环流反应器串联构成,流体从一个反应器上部的气液分离区流入交换管道,在管道中的液柱与反应器内气液混相的密度差作用下,流入另一反应器底部,在不使用泵的情况下,实现反应器间的物料交换,交换速度随反应器中气含率的提高而提高。将该系统应用于铁基液相氧化-还原脱除硫化氢的过程,在实验室规模下,实现了硫化氢吸收和络合铁吸收剂再生的联合运转。
In order to improve the efficiency of the gas-liquid absorption-desorption or gas-liquid catalytic reaction-catalyst regeneration process and reduce the energy consumption of such processes, a self-exchange reactor system has been developed. The system consists of two inner loop reactors connected in series. The fluid flows into the exchange line from the gas-liquid separation zone in the upper part of the reactor. Under the action of the density difference between the liquid column in the line and the gas-liquid mixed phase in the reactor, At the bottom of the reactor, the material exchange between the reactors is realized without using a pump, and the exchange rate increases with the increase of the gas holdup in the reactor. The system was applied to the process of iron-based liquid-phase oxidation-reduction of hydrogen sulfide to achieve the combined operation of hydrogen sulfide absorption and complex iron absorber regeneration on a laboratory scale.