Experimental Study On Performance Of Amine Deacidification Regeneration System Under Shaking Conditions

With the continuous development of LNG floating production storage and offloading device(FLNG),the application of amine deacidification process has received more and more attention.The traditional deacidification process research mainly focuses on land-stationary conditions,and rarely involves shaking at sea.The deacidification performance of the environment,the regeneration tower and the reboiler are the key equipments in the regeneration system of the offshore natural gas pretreatment process,and its operation has an important impact on the natural gas purification effect and economic benefits.In this paper,the experimental study on the performance of the amine deacidification system under the shaking condition of the regeneration tower and reboiler is carried out.By modifying the existing amine deacidification gas experimental device,it can meet the experimental requirements of different sloshing parameters and deacidification performance under different process parameters.By analyzing the decalcification experiments of the regeneration tower and reboiler under different shaking conditions(sloshing form,shaking amplitude,shaking period)and different process parameters,the regeneration tower and reboiler under the shaking condition were obtained.The influence law of acid gas performance: In the single sloshing form,the horizontal(longitudinal)shaking has the greatest influence on the performance of the regeneration tower,and the influence of the horizontal(longitudinal)shaking in the different coupling sloshing forms with the horizontal(vertical)shaking dominates,other shaking The form has little effect on the performance of the regeneration tower;increasing the regeneration temperature and reducing the regeneration pressure under shaking conditions can improve the regeneration effect to a certain extent,thereby improving the absorption effect,and the regeneration pressure has less influence on the regeneration effect;single shaking horizontal and vertical shaking And the coupled swaying roll + pitch has a great influence on the performance of the reboiler,and the influence of the sloshing cycle on the reboiler is negligible.The different shaking conditions(sloshing form,shaking amplitude,shaking period)and the deacidification performance of the regenerator and reboiler under different process parameters are obtained for the floating production and storage unit(FLNG)amine deacidification regeneration system.The design and operation have certain reference significance.