DEVELOPMENT AND COMMERCIAL APPLICATION OF TAILORED START-UP CATALYST FOR RESID TO CHEMICALS UNIT
Based on the process characteristics and product distribution of resid to chemicals(RTC)unit,while considering the demands for the fluidization performance and physicochemical properties of the start-up catalyst,a scientific blend of selected equilibrium catalyst component,customized fresh component,and inert auxiliary was developed to create the tailored start-up catalyst TSC-R1.Compared to traditional start-up catalyst,the tailored start-up catalyst has excellent physical properties,higher propylene factor and lower coke selectivity,and can quickly match the start-up requirements of the target plant,enhancing the economic benefits of the RTC unit.The industrial application of TSC-R1 in SINOPEC Anqing Petrochemical Company 3.00 Mt/a RTC unit showed that the adjustment time of the unit was greatly shortened,and the time for the unit to achieve stable operation was only 7 d.The quick and stable reaction activity of the catalyst is helpful for the product distribution of the unit to reach the design condition and ensures economic benefits.
resid to chemicalstailored start-up catalystcoke selectivitypropylene factor
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