Design and Experimental Study of Metal Filter for Isomerized Dewaxing Unit
The raw wax oil filter of the isomerized dewaxing unit is easily clogged and has a poor regeneration effect.The filter element material was replaced with a high-precision metal composite membrane filter material,and the regeneration method was changed to a combined liquid bubbling + gas explosion backflushing process system,and the test to verify the improvement effect has done.The results show that the metal composite membrane can intercept metal particles larger than 5 μm in wax oil by more than 98%,and the solid content(mass fraction)of the filtered wax oil is less than 5×10-6,which can meet the production requirements.After several cycles of backwashing,the initial pressure difference and the operating time of the filter remain basically unchanged,which indicated the combined regeneration process of liquid bubbling+gas explosion backwashing has good results.