Column/side reactor

DESIGN AND CONTROL OF COLUMN/ SIDE REACTOR SYSTEMS... 

The column/side reactors process has a large number of design optimization variables. A number of specifications and assumptions ate made to leduee this number to a manageable level. The design objective is to obtain 95% conversion for fixed fresh feed flowrates of 12.6 mol/s of each reactant. The product purities of distillate stream x c and bottoms stream xb,d are both 95 mol%. The two fresh feedstreams of reactants A and B ate fed into the column at the trays immediately above the lower and upper trap-out trays, respectively. 

Figure 16.6 Results for column/side reactors process with different 0390 values.

The lower gr h in Figure 16.7 compares the economic optimum steady-state design of the column/side reactor process with those of the reactive distillation column and the multiunit conventional process. The reactive distillation column is the most economical alternative for the a39o = 2, where thoe is noreaction/separation temperature mismatch. The column/ side reactor process becomes more attractive as the mismateh of reaction/separation temperatures becomes more severe. The distillation column with a side reactor is economically superior for reference relative volatilities that arc smaller than 1.5 for this case study. 

Comparing the lower graphs in Figures 16.7 and 16.8 shows that the break-even point between the reactive distillation and column/side reactor process moves from an of about 1.5 down to about 1.4. 

DESIGN OF COLUMN/SIDE REACTOR PROCESS FOR ETHYL ACETATE SYSTEM... 

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