Slurry catalyst flow splitters and methods of using the same

The invention claims a system for adding materails slurry catalyst composition, comprising system comprising: The first slurry feeding system and second slurry feeding system, wherein the the first slurry feeding system comprises a first slurry flow meter and first catalyst injection device, wherein the first slurry flow meter number assay to the first catalyst injection device in the slurry catalyst composition flow rate; The second the slurry feeding system comprises a second slurry flow meter; the second carrying liquid and second liquid carrying control device and second catalyst injection device, wherein the second slurry flow meter assay to the second catalyst injection device the flow speed of the second catalyst slurry, wherein the second carrying liquid control device is based on that the first slurry catalyst composition flow speed to the second slurry catalyst composition flow speed of the is controlled to the second slurry feeding the process parameter.