6. Optimum ANFO, LAN & UF Resin Production & Distribution

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BMC - BOS: Case Study - Multi-Product, Multi-Supply Chain (MPMS) Optimisation - Dr BM Cole, Ph.D.Eng.(Pr. Eng.) Optimisation of Nitrates-based Explosives (ANFO), Fertiliser (LAN) and (UF Resins) Production & Distribution Facility under operational uncertainty B) Basic Flowchart No 2 Ammonia Plant - MP (180 bar) - 180 tons/day No 4 Ammonia Plant - HP (280 bar) - 1,000 tons/day Coal (C) No 7 Nitric Acid Plant - 3.3 bar - 80 tons/day NH3 (N2) H2O (h) No 10 HP Nitric Acid Plant - 8.0 bar No 9 HP Nitric Acid Plant - 8.7 bar - 275 tons/day No 11 DPOP Nitric Acid Plant - 4.0 & 8.0 bar - 695 tons/day NH3 (N4) 55% HNO3 Coal Residue - Solid (R2) + CO/CO2 (G2) No 1 Ammonium Nitrate 88% Solution (ANS)1 Plant - 350 tons/day No 2 Ammonium Nitrate 92% Solution (ANS)2 Plant - 650 No 1 Ammonium Nitrate Plant - 75 tons/day No 2 Ammonium Nitrate Plant - 125 tons/day No 3 Ammonium Nitrate Plant - 125 tons/day No 4 Ammonium Nitrate Plant - 240 tons/day Limestone Ammonium Nitrate Plant (LAN) - 550 tons/day Limestone (L) h7 h9 h10 h11 C2 C4 Coal Residue - Solid (R4) + CO/CO2 (G4) NH3 Sales (N4)s (N2)ANS1 NH3 Sales (N2)s (N4)9 (N4)10 (HN)9 60% HNO3 Nitric Acid (HN)10 (HN)11 (N2)7 (N4)ANS2 (HN)7 55% HNO3 NA Sales NO/NO2 Tailgas (T7) NO/NO2 Tailgas (T9) NO/NO2 Tailgas (T11) NO/NO2 Tailgas (T10) (N4)11 Air (A7) Air (A9) Air (A10) Air (A11) (WV)ANS1 92% ANS Supply Tank 88% ANS Sales (ANS)S 88 (ANS)AN1 (ANS)AN2 (ANS)AN3 (AN)AN1 (AN)AN2 (AN)AN3 (AN)S (WV)AN3 (WV)AN1 (WV)AN2 88% ANS Supply Tank 92% ANS Sales (ANS)S 92 (WV)AN4 (AN)S (ANS)AN4 (ANS)LAN (WV)LAN 60% Nitric Acid Sales LAN Inventort Control SA Agricultural Industry Urea Production - Synthesis (Carbomation) 2NH 3 + CO 2 NH 2 COONH 4 - Decomposition NH 2 COONH 4 NH 2 CONH 2 + H 2 O - Concentration NH3 (Urea) Carbon Dioxide CO2 Heat ANFO Production Fuel Oil Formaldehyde (CH 2 O) UF Resin H-[-NH-C-NH-]n-OH || O pH Control SA Timber Industry Urea (NH 2 CONH 2 ) UF Resin Condensor (Condensation) NH 2 CONH 2 + nCH 2 O Waste Treatmebt Reflux Condenser SA Mining Industry Scenario 1 Max (ANFO) = 259,024 LAN = 70,063 UF Resin = 56, 270 Scenario 2 ANFO = 135,272 Max ( LAN) = 189,750 UF Resin = 56,235 Scenario 3 ANFO = 139,234 (LAN) = 133,901 Max ( UF Resin ) = 63,500

Transcript of 6. Optimum ANFO, LAN & UF Resin Production & Distribution

Page 1: 6. Optimum ANFO, LAN & UF Resin Production & Distribution

BMC - BOS: Case Study - Multi-Product, Multi-Supply Chain (MPMS) Optimisation - Dr BM Cole, Ph.D.Eng.(Pr. Eng.)

Optimisation of Nitrates-based Explosives (ANFO), Fertiliser (LAN) and (UF Resins) Production & Distribution Facility under operational uncertainty

B) Basic Flowchart

No 2 Ammonia Plant - MP (180 bar) - 180 tons/day

No 4 Ammonia Plant - HP (280 bar)

- 1,000 tons/day

Coal (C)

No 7 Nitric Acid Plant

- 3.3 bar

- 80 tons/day

NH3 (N2)

H2O (h)

No 10 HP Nitric Acid Plant

- 8.0 bar

No 9 HP Nitric Acid Plant- 8.7 bar

- 275 tons/day

No 11 DPOP Nitric Acid Plant

- 4.0 & 8.0 bar

- 695 tons/day

NH3 (N4)

55% HNO3

Coal Residue -Solid (R2) +

CO/CO2 (G2)

No 1 Ammonium Nitrate 88% Solution (ANS)1

Plant - 350 tons/day

No 2 Ammonium Nitrate 92% Solution (ANS)2 Plant - 650

No 1 Ammonium Nitrate Plant- 75 tons/day

No 2 Ammonium Nitrate Plant- 125 tons/day

No 3 Ammonium Nitrate Plant- 125 tons/day

No 4 Ammonium Nitrate Plant

- 240 tons/day

Limestone Ammonium Nitrate Plant (LAN)

- 550 tons/day

Limestone (L)

h7

h9

h10

h11

C2 C4

Coal Residue -Solid (R4) +

CO/CO2 (G4)

NH3 Sales (N4)s

(N2)ANS1

NH3 Sales(N2)s

(N4)9

(N4)10

(HN)9

60% HNO3

Nitric Acid

(HN)10

(HN)11

(N2)7

(N4)ANS2

(HN)7

55% HNO3

NA SalesNO/NO2

Tailgas (T7)

NO/NO2

Tailgas (T9)

NO/NO2

Tailgas (T11)NO/NO2Tailgas (T10)

(N4)11

Air (A7)

Air (A9)

Air (A10)

Air (A11)

(WV)ANS192% ANS

Supply Tank

88% ANS Sales (ANS)S

88

(ANS)AN1

(ANS)AN2

(ANS)AN3

(AN)AN1

(AN)AN2

(AN)AN3

(AN)S

(WV)AN3

(WV)AN1

(WV)AN2

88% ANS Supply Tank

92% ANS Sales (ANS)S

92

(WV)AN4

(AN)S

(ANS)AN4

(ANS)LAN(WV)LAN

60% Nitric Acid Sales

LAN Inventort Control

SA Agricultural Industry

Urea Production- Synthesis (Carbomation)

2NH3 + CO2 NH2COONH4

- Decomposition

NH2COONH4 NH2CONH2+ H2O- Concentration

NH3 (Urea)

Carbon Dioxide CO2

Heat

ANFO Production

Fuel Oil

Formaldehyde (CH2O)

UF Res in

H-[-NH-C-NH-]n-OH

||O

pH Control

SA Timber Industry

Urea (NH2CONH2)

UF Resin Condensor(Condensation)

NH2CONH2 + nCH2O

Waste Treatmebt

Reflux Condenser

SA Mining Industry

Scenario 1

Max (ANFO) = 259,024LAN = 70,063

UF Resin = 56, 270

Scenario 2

ANFO = 135,272Max ( LAN) = 189,750

UF Resin = 56,235

Scenario 3

ANFO = 139,234(LAN) = 133,901

Max ( UF Resin ) = 63,500