# MATERIAL BALANCE

CAPACITY=10 MTPD PRODUCTION OF MEK:-

 10MT 1000kg 1 day day 1MT 24hr

C4H9OH  C4H8O  +H2

To produce 72 kg/hr of MEK  ,SBA required         = 74 kg/hr

To produce 412.5 kg/hr of MEK  ,SBA required   =423.95 kg/hr

Conversion of SBA to MEK is 90%, So

SBA required   =423.95/0.9

=471 kg/hr

And,

74kg of SBA produces H2  = 2 kg/hr

471kg SBA produces H2  = (2/74)(471)

=  12.73 kg/hr

As the conversion of SBA to MEK is 90% so the remaining 10% will be recycled,

As the hydrogen is separated from mixture so ,

Feed enter in distillation coulumn   =  471-12.73    kg/hr

=   458.27  kg/hr

Flow of streams through reactor , separator and distillation coulumn is shown below

Recycling

MEK = 1%               SBA   =   99

MEK BALANCE

M1 × % of MEK  = (M2×% of MEK)+( M3×% of MEK)

458.27 × % of MEK  = (412.5×0.99)+( 45.77×0.01)

% of MEK =  89.2 %

SBA BALANCE

M1 × % of SBA  = (M2×% of SBA)+( M3×% of SBA)

458.27 × % of SBA  = (412.5×0.01)+( 45.77×0.99)

% of SBA = 10.80 %

COMPOSITION OF FEED

 Component Percentage Kg/hr SBA 10.8 49.49 MEK 89.2 408.8 TOTAL 100 458.3

COMPOSITION OF PRODUCT

 Component Percentage Kg/hr SBA 1 4.12 MEK 99 408.4 TOTAL 100 412.5

COMPOSITION OF RECYLE STREAM

 Component Percentage Kg/hr SBA 99 45.31 MEK 1 0.458 TOTAL 100 45.77

OVER ALL MATERIAL BALANCE

M1= M2 + M3

M1  =  458.3 +12.73

=  471 kg/hr

MEK BALANCE

M1 × % of MEK  = (M2×% of MEK)+( M3×% of MEK)

471 × % of MEK  = (12.73×0)+( 458.3×89.2)

% of MEK =  86.8 %

SBA BALANCE

M1 × % of SBA  = (M2×% of SBA)+( M3×% of SBA)

471 × % of SBA  = (12.73×0)+( 458.3×0.108)

% of SBA = 10.50 %

H2 BALANCE

% of H2 + % of SBA +% of MEK = 100

% of H2  =  100-86.8-10.5

=   2.71 %

COMPOSITION OF FEED

 Component Percentage Kg/hr SBA 10.5 49.49 MEK 86.8 408.8 H2 2.71 12.73 TOTAL 100 471

COMPOSITION OF BOTTOM PRODUCT

 Component Percentage Kg/hr SBA 10.8 49.49 MEK 89.2 408.8 TOTAL 100 458.3

COMPOSITION OF TOP PRODUCT

 Component Percentage Kg/hr SBA 0 0 MEK 0 0 H2 100 12.73 TOTAL 100 12.73

COMPOSITION  OF  FEED

 COMPONENT PERCENTAGE Kg/hr SBA 10.5 49.49 MEK 86.79 408.8 H2 2.72 12.81 TOTAL 100 471

Overall flow rate balance sheet

All flow rates are in kg/hr

 COMPONENTS REACTOR SEPARATOR DRUM DISTILLATION COULUMN INLET OUTLET INLET OUTLET INLET OUTLET TOP BOTTOM TOP BOTTOM SBA 470.53 49.49 49.49 —– 49.49 49.49 4.12 45.31 MEK 0.47 408.8 408.8 —– 408.8 408.8 408.8 0.458 H2 —— 12.73 12.73 12.73 ——- —- —— —– TOTAL 471 471 471 12.73 458.3 458.3 412.5 45.77

Overall composition  balance sheet

All compositions are in percentage

 COMPONENT REACTOR SEPARATOR DRUM DISTILLATION COULUMN INLET OUTLET INLET OUTLET INLET OUTLET TOP BOTTOM TOP BOTTOM SBA 99.9 10.5 10.5 —– 10.80 10.8 1 99 MEK 0.1 86.79 86.79 —– 89.2 89.2 99 1 H2 —- 2.71 2.71 100 —- —- —– —– TOTAL 100 100 100 100 100 100 100 100

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