Page 130 - Fluid Catalytic Cracking Handbook

FCC Catalysts 105

Star dard
FCCl Feed
Equilibrium n-Q Syringe Pump
Catalysts
! L J way Valve @
-"1^3
Coke Burn Off -
"I I
Reactor Furnace rJFlow Meter
Temp control Preheat L^«— <•) Purge N,
i— is
ri Zone
Tempcontrol Catalyst y Gas Product Sample
l~W
1 \
llllllln l „„ n .„ „ \
1
1
i
/ ^ ^^ [""F ', /'
7
/-''tL \ T
/ Cold Bath j salt Solution J-i / '
i Gas Collector
/ Gas Volume .
/ / Determination ,
/ r /
pent Catalyst Liquid Product Gas Product f
To Leco Analyzer for To Gas Chromatograph To Gas Chromatograth
Coke Determination for Analysis of for Component Analysis
\ Light Hydrocarbons and
Simulated Distillation
N

Material Balance
Detailed Produce Yields
Activity
Gas Factor, Coke Factor

Figure 3-13. Typical MAT equipment [3].

matrix surface areas. Hydrothermal conditions in the cat cracker
destroy the zeolite cage structure, thus reducing its surface area. They
also dealuminate the zeolite framework. Hydrothermal treatment has
less effect on the matrix surface area, but the matrix surface area is
affected by the collapse of small pores to become larger pores.