CFD simulation of gas-liquid separation component in large-scale industrial Fischer Tropsch synthesis plant
To improve the gas-liquid separation efficiency of heavy hydrocarbon,a key composition of the Fischer Tropsch synthesis plant,a three-dimensional CFD model of gas-liquid flow on the corrugated plate was established.The fluid flow characteristics inside a complex corrugated plate were studied,and the gas velocity field,pressure field distribution and droplet motion behavior inside the separator were analyzed.The influence of such parameters as separator structure and operating conditions on the pressure drop and separation efficiency was investigated.And industrial operation verification was carried out on corrugated plates with two different structures.The results showed that the complex structure corrugated plate had a significant effect on improving the gas-liquid separation in the Fischer Tropsch synthesis gas-phase loop.The separation efficiency and pressure drop increased with the increase of the hook piece length and inclination,and decreased with the increase of the blade spacing.The industrial operation verification results showed that the separation element with hook piece was not suitable for the Fischer Tropsch synthesis slurry bed process.Compared with the hook corrugated plate,after the application of smooth corrugated plate,the separation of heavy hydrocarbons was increased,the resistance drop of the separator was reduced,the circulating gas volume increased,the reaction conversion rate increased,the separation performance of heavy hydrocarbons was improved,and the product distillation range division was more refined.
NETL
NSTL
万方数据
维普
