Presentation on theme: "Gas Treatment Plant Chris, Stephanie, Mariam, Kyle Mentor: Jerry Palmer."— Presentation transcript:
Gas Treatment Plant Chris, Stephanie, Mariam, Kyle Mentor: Jerry Palmer
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
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.
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
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
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
Cost: o Total operation cost: 19,031,900 $/year o Total capital cost: $12,567,400 Aspen Estimate-Demethanizer in Hydrocarbon Recovery