Page 141 - Fluid Catalytic Cracking Handbook

116 Fluid Catalytic Cracking Handbook

3, Obtain vendor responses
a. Obtain catalyst recommendation
b. Obtain alternate recommendation
c. Obtain comparative yield projection
4, Obtain current product price projections
a. For present and future four-quarters
5, Perform economic evaluations on vendor yields
a. Select catalysts for MAT evaluations
6, Conduct MAT of selected list
a. Perform physical and chemical analyses
b. Determine steam deactivation conditions
c. Deactivate incumbent fresh catalyst to match incumbent
E-cat
d. Use same deactivation steps for each candidate catalyst
7, Perform economic analysis of alternatives
a. Estimate commercial yield from MAT evaluations
8, Request commercial proposals
a. Consult at least two vendors
b. Obtain references
c. Check references
9, Test the selected catalysts in a pilot plant
a. Calibrate the pilot plant steaming conditions using incum-
bent E-cat
b. Deactivate the incumbent and other candidate catalysts
c. Collect at least two or three data points on each by
varying the catalyst-to-oil ratio
10. Evaluate pilot plant results
a. Translate the pilot plant data
b. Use the kinetic model to heat-balance the data
c. Identify limitations and constraints
11. Make the catalyst selection
a. Perform economic evaluation
b. Consider intangibles-research, quality control, price, steady
supply, manufacturing location
c. Make recommendations
12. Post selection
a. Monitoring transition-% changeover
b. Post transition test run
c. Confirm computer model