Production of Gasoline Components from Synthesis Gas ChE 397 Senior Design Group Alpha Ayesha Rizvi Bernard Hsu Jeff Tyska Mohammad Shehadeh Yacoub Awwad
Presentation Overview Recap PFD Initial Control Scheme Refined Economics Plant Layout Calculations
Recap H2H2
Block Flow Diagram Methanol Reactor CO H2H2 MeOH H 2, CO Cooling and Separation MeOH H 2, CO Methanol to Gasoline (MTG) Reactors Water Separation Hydrocarbons Water Hydrocarbons Deethanizer (Dist. Col.) C1/C2 Distillation Columns Heavy Hydrocarbons Liquefied Petroleum Gas Gasoline Purge
Questions from Last Presentation Why are we using the fluidized bed MTG reactor? – Catalyst Regeneration – Economics – Data Why is our methanol reactor at this pressure? – Normal operation How do we startup our facility – Syngas – Methane We are using an inefficient distillation scheme – Varied stages/RR ratio to no avail
Design Basis 6000 Short tons syngas/day 518 °F (270 °C) 725 psi (5 Mpa) Product Gasoline – 15,974 barrels/day LPG – 4,263 barrels/day
Economics Overview Plant Revenue: $575 Million/year Profit: $87.2 Million per year Simple Payback: 4.16 years Plant Upfront cost: $363 Million IRR of 25% Cost of utilities, maintenance, and catalyst: $22.7 Million/yr (reduced by 1/2)
Analysis of NPV% vs. a Range of Gasoline Prices.
Analysis of NPV% vs. a range of LPG%
Analysis of NPV% vs. a Range of Syngas %
Analysis of NPV% vs. Plant Cost %
Detailed MTG Reactor Pricing Sizing from NREL standards Original price from NREL 6/10 factor for reactors CEPCI to update prices Total reactor cost = 13.8 Million
Plant Layout Considerations: 1. Location:- 1. It must be far from public areas (schools, living communities, etc) 2. Must have access to any transportation (Railroads, roads, sea, etc) 2. Safety & design 1. Employees safety plays an important role in plant design. 2. Also taking into account, for any future expansion & Space for maintenance. 3. Cost: 1. Includes: capital and operating.
Site Plant
Process Building
Methanol Reactor Detailed Sizing Calculation Heat transfer and kinetics U = 150 BTU/hr Q = UA Δ T GHSV /hr Volume inside tubes D = 8.3 ft, H = 33.2 ft
MTG Reactor Sizing 10 Ft/Sec
Questions?