1. Gas Treatment Plant Chris, Stephanie, Mariam, Kyle Mentor: Jerry Palmer

2. Report Outline Previous Questions Block Flow Diagram Detailed PFD's (stream #, components, P&T) for each process Energy sinks/loads, Equipment sizing, Cost in Aspen estimator for one process -- Hydrocarbon recovery

3. Previous Questions 1. Sending 97% Nitrogen and 3% methane from Nitrogen rejection stream to NH3 plant. 2.Using thermal swing adsorber instead of a pressure swing adsorber. To prevent the loss of feed gas in the bed during depressurization and also,the short time cycle in PSA can cause rapid re-pressurization that will lead to transient variation in the feed and product flow which will affect the operation of the plant 3. Using only one turboexpander for Hydrocarbon recovery.

4. Basis : 310 MMSCFD Revenues Midrex : 103 kmol/day (Transfer Cost) Syn Gas:111 kmol/day (Transfer Cost) Nh3 PLant : 50.4 kmol/day (Transfer Cost) CHP :195.4 kmol/day (Transfer Cost) Pipeline:4.8 kmol/day ($3.80/MSCFD) LNG: 5000 BBL/day ($10.40/BBL) NGL: 48990 BBL/day (~$22/BBL)

5. Block Flow Diagram

7. PFD-002

8. PFD-003

11. Aspen Estimate-Demethanizer in Hydrocarbon Recovery Size: Tower: o Vessel Diameter: 8.5 ft o Vessel Height 66 ft o Liquid volume: 11,249.5 gallons o 33 Trays o 24 inches between trays Condenser: o Area: 22,980.6 ft^2 Reboiler: o Area: 7,803.94 ft^2 o Tube length: 20 ft Reflux Pump: o Liquid flow rate: 1808.3 GPM o Efficiency: 70

12. Aspen Estimate-Demethanizer in Hydrocarbon Recovery Equipment Cost: o Tower: $3,059,300 o Condenser: $419,000 o Reboiler: $268,000 o Reflux Pump: $17,200 Total equipment cost for one Demethanizer Column: $3,763,500

13. Aspen Estimate-Demethanizer in Hydrocarbon Recovery Energy: o Tower: 28.03 MMBTU/hr o Condenser: 22.7 MMBTU/hr o Reboiler: 5.3 MMBTU/hr o Reflux ratio:.35

14. Cost: o Total operation cost: 19,031,900 $/year o Total capital cost: $12,567,400 Aspen Estimate-Demethanizer in Hydrocarbon Recovery

18. Annotated Equipment List EquipmentDescriptionEquipmentDescriptionEquipmentDescriptionEquipmentDescription AC-001AIR COOLERD-001VAPOR-LIQUID SEPARATOR HX-003HEAT EXCHANGER MS-001MOLECULAR SIEVE BED C-001DEMETHANIZE R D-002VAPOR-LIQUID SEPARATOR HX-004HEAT EXCHANGER MS-002MOLECULAR SIEVE BED C-002CRYOGENIC DISTILLATION COLUMN; ASTM A353 D-003VAPOR-LIQUID SEPARATOR HX-005HEAT EXCHANGER MS-003MOLECULAR SIEVE BED CMP-001COMPRESSORD-004INLET- SEPARATOR HX-006HEAT EXCHANGER MS-004MOLECULAR SIEVE BED CMP-002COMPRESSORD-005VAPOR-LIQUID SEPARATOR HX-007HEATERMS-005MOLECULAR SIEVE BED CMP-003COMPRESSORD-006VAPOR-LIQUID SEPARATOR HX-008BRAZED ALUMINIUM MS-006MOLECULAR SIEVE BED CMP-004COMPRESSORD-007VAPOR-LIQUID SEPARATOR HX-009BRAZED ALUMINIUM PMP-001 CMP-005COMPRESSORD-008PHASE SEPARATOR JT-001JOULE THOMPSON VALVE R-001CHILLER CMP-006COMPRESSORD-009VAPOR LIQUID SEPARATOR JT-002RB-001REBOILER CMP-007COMPRESSORHX-001HEAT EXCHANGER M-001MEMBRANE CMP-008COMPRESSORHX-002HEAT EXCHANGER M-002MEMBRANE

19. Energy Loads and Sinks PFD-001: Compression = 6888 HP Heating = 1.7MMBTU/HR PFD-002 and PFD-003: Estimated total of 139MMBTU/HR PFD-004:Air Cooling =3.4MMBTU/HR Compression = 880HP Heating = 44.6MMBTU/HR PFD-005: Refrigeration = 56.3 MMBTU/HR PFD-006: Heating = 8 MMBTU/HR PFD-007: Compression = 1260 HP Refrigeration = 58 MMBTU/HR PFD-008: Compression = 920HP

20. Major Equipment Costs 6 molecular sieve Adsorbers installed $ 6,690,000 24 Tray Nitrogen Rejection Column Installed $2,300,000 Absorbing and Stripping Columns for MDEA treatment, approximately 25 trays each intstalled $2,500,000

21. Q & A