Mass Balance

MASS BALANCE Assumptions:  Production per year: 100,000 metric tonne/year  According to OSHA regulations working days

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MASS BALANCE Assumptions:

 Production per year: 100,000 metric tonne/year  According to OSHA regulations working days: 330 days Compound Propylene, C3H6 Acrylic Acid, C3H4O2 Acetic Acid, CH3COOH Nitrogen, N2 Oxygen, O2 Carbon Dioxide, CO2 Water, H2O

Molecular Weight (g/mol) 42.08 72.06 60.052 14.0067 16 44.01 18.02

Total molar flowrate of acrylic acid production 100,000

metric ton 1 yr 1 day 1 hr 1000 g × × × × yr 330 days 24 hour 3600 s 0.001 metric ton

g 1 mol =3507.295 × s 72.06 g =48.6719

mol 3600 s × s 1 hr

=175218.743 =175.219

mol 1 kmol × hr 1000 mol

kmol hr

1. REACTOR

1792.538 kmol/hr

1792.538 kmol/hr

H2O = 0.1021 CO2 = 0.0001 O2 = 0.1702 N2 = 0.6401 C3H6 = 0.0875

H2O = 0.1611 CO2 = 0.0304 O2 = 0.08 N2 = 0.5172 C3H6 = 0.0086 C3H4O2 = 0.1953 CH3COOH = 0.0072

Components

Minput (kmol/hr)

Moutput (kmol/hr)

183.0181

288.7779

0.1793

54.4932

Oxygen, O2

305.0900

143.4030

Nitrogen, N2

1147.4036

927.1007

Propylene, C3H6

156.8471

15.4158

Acetic Acid, CH3COOH

-

350.0827

Acrylic Acid, C3H4O2

-

12.9063

1792.5381

1792.1796

Water, H2O Carbon Dioxide, CO2

Total

2.0 FLUSH DRUM

1492.919 kmol/hr

H2O = 0.1934 CO2 = 0.0365 O2 = 0.0171 N2 = 0.6212 C3H6 = 0.0103 C3H4O2 = 0.1172 CH3COOH = 0.0043

1792.538 kmol/hr kmol/hr H2O = 0.1611 CO2 = 0.0304 O2 = 0.08 N2 = 0.5172 C3H6 = 0.0086 C3H4O2 = 0.1953 CH3COOH = 0.0072

299.619 kmol/hr

C3H4O2 = 0.5842 CH3COOH = 0.0216 H2O = 0.3942 Components

Minput (kmol/hr)

Moutput (kmol/hr)

Water, H2O Carbon Dioxide, CO2

288.7779 54.4932

406.8403 54.4915

Oxygen, O2 Nitrogen, N2

143.4030 927.1007

25.5289 927.4013

Propylene, C3H6

15.4158

15.3771

Acetic Acid, CH3COOH Acrylic Acid, C3H4O2

350.0827 12.9063

12.8913 350.0075

1792.538 kmol/hr

1792.538 kmol/hr

Total

3.0 ABSORPTION TOWER 1193.3 kmol/hr

H2O = 0.1430 CO2 = 0.0457 O2 = 0.0212 N2 = 0.7772 C3H6 = 0.0129

1492.919 kmol/hr

H2O = 0.1934 CO2 = 0.0365 O2 = 0.0171 N2 = 0.6212 C3H6 = 0.0103 C3H4O2 = 0.1172 CH3COOH = 0.0043 299.619 kmol/hr

C3H4O2 = 0.5842 CH3COOH = 0.0216 H2O = 0.3942 Components

Minput (kmol/hr)

Moutput (kmol/hr)

Water, H2O

288.7305

288.7517

Carbon Dioxide, CO2

54.4915

54.5338

Oxygen, O2

25.5289

25.2980

Nitrogen, N2

927.4013

927.4328

Propylene, C3H6

15.3771

15.3936

Acetic Acid, CH3COOH

6.4196

6.4718

174.9701

175.0374

1492.919 kmol/hr

1492.919 kmol/hr

Acrylic Acid, C3H4O2 Total

4. LIQUID-LIQUID EXTRACTION COLUMN 181.219 kmol/hr C3H4O2 = 0.9659 CH3COOH = 0.0337 H2O = 0.0004

299.619 kmol/hr C3H4O2 = 0.5842 CH3COOH = 0.0216 H2O = 0.3942

118.4 kmol/hr H2O = 0.997 CH3COOH = 0.003

Components

Minput (kmol/hr)

Moutput (kmol/hr)

Acrylic Acid, C3H4O2 Acetic Acid, CH3COOH

175.0374 6.4718

175.0394 6.4623

Water, H2O Total

118.1099 299.6191

118.1173 299.6190

5. DISTILLATION COLUMN 6 kmol/hr C3H4O2 = 0.0272 CH3COOH = 0.9600 H2O = 0.0128

181.219 kmol/hr C3H4O2 = 0.9659 CH3COOH = 0.0337 H2O = 0.0004

175.219 kmol/hr C3H4O2 = 0.9980 CH3COOH = 0.0020

Components

Minput (kmol/hr)

Moutput (kmol/hr)

175.0394

175.0318

Acetic Acid, CH3COOH

6.1071

6.1104

Water, H2O

0.0725

0.0768

Total

181.219

181.219

Acrylic Acid, C3H4O2