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Synthesis Gas to Gasoline Production ChE 397 Senior Design Group Alpha Ayesha Rizvi Bernard Hsu Jeff Tyska Mohammed Shehadeh Yacoub Awwad 2011.01.25.

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Presentation on theme: "Synthesis Gas to Gasoline Production ChE 397 Senior Design Group Alpha Ayesha Rizvi Bernard Hsu Jeff Tyska Mohammed Shehadeh Yacoub Awwad 2011.01.25."— Presentation transcript:

1 Synthesis Gas to Gasoline Production ChE 397 Senior Design Group Alpha Ayesha Rizvi Bernard Hsu Jeff Tyska Mohammed Shehadeh Yacoub Awwad

2 Group Members and Roles Jeffrey TyskaGroup Leader Ayesha RizviResearch Bernard HsuTechnical Writer Mohammed ShehadehWebmaster Yacoub AwwadCalculation Expert

3 Gasoline Prices All Time High: $4.11/gal General Increasing Trend

4 Defeyes, Kenneth S. Hubbert's Peak: the Impending World Oil Shortage. Princeton: Princeton UP, Peak Production 1970

5 World Oil Production Peak World Production

6 Methanol as a Feedstock Different Sources of Methanol Natural Gas Coal Biomass Municipal Solid Waste Why Syn Gas to make Methanol ? Economical Efficient

7 Why Gasoline and Mobil Process? Existing infrastructure Established demand Reduced SOx emissions Fairly easy to scale Fairly renewable feedstock Energy Independence SO 2

8 Environmental Review environment.html

9 Competing Processes Fischer-Tropsch Oil Tar Sands (2n+1) H 2 + n CO C n H(2n+2) + n H 2 O ges/2010/12/ jpg 43%

10 Syngas to Methanol Dehydration (Alumina Catalyst) Dimethyl Ether 2H 2 + CO Synthesis + + +

11 2 Process Equations ZSM-5 CH 3 OCH 3 + H 2 O dehydration C H 2 O Possible alternative fuel

12 Zeolite Socony Mobil 5 First synthesized in 1972 U. S. Patent 3,702,886 (Mobil Oil Company 1975) Na n Al n Si 96–n O 192 ·16H 2 O (0

13 Gasoline grade High Quality Similar Properties Very low Sulfur 2% Durene

14 Highly Exothermic High concentration of durene that causes carburetor icing Catalyst aging Reversible- caused by coked catalyst Irreversible- caused by the steam Band aging Allows the reactant to break through the bed unconverted Unconverted methanol may be lost from dissolving in water Inability to directly produce diesel and jet fuel. Constraints of the MTG process

15 Scale 1800 metric tons syngas / day 900 metric tons gasoline / day Newton County Landfill 265 Acres Next to gasifier 50-60% plant thermal efficiency Losses mainly from methanol production

16 Block Flow Diagram Methanol Reactor Wastewater treatment H 2 O, trace contaminants CO H2H2 MeOH DME Reactor Methanol to Gasoline Reactors DME H2OH2O MeOH Distillation Columns H2H2 Heavy Gasoline Durene Reactor Light Gasoline HVP Gasoline Heavy Gasoline (less durene) StorageBlending Additives Final Storage To consumer or refineries for final blending Crude Gasoline Light Gas

17 End!

18 ZSM-5 In the 1970's, Mobil synthesized a new zeolite catalyst (ZSM-5), which became a key element in the MTG process. Zeolites are porous, crystalline materials with three dimensional framework composed of AlO 4 and SiO 4 tetrahedral. ZSM-5 catalyst produces the right kind of shape and size selectivity properties suitable for gasoline synthesis. Methane diffusion through zeolite catalyst download_lo_res.html?id=

19 Oil Consumption in the USA country_energy_data.cfm?fips=US 18,686,223 (2009) 20,802,162 (2005)

20 MeOH reactor 270 C, 5 MPa Syngas H 2, CO, CO 2, H 2 O MeOH Cooler CO, H 2, CO 2 Crude MeOH Flash separator DME Reacto r MTGMTG MTGMTG MTGMTG MTGMTG MTGMTG MTGMTG MTGMTG MTGMTG Hot Effluent Cooled Effluent Cool Effluent Separator Cooler Water Recycle Gas Liquid HC Dis t Col. 1 Dis t Col. 2 Liquid HC Cooler *2 *1 LPG Dis t Col. 3 Liquid HC HVP Gasoline HVP Storage Light Gasoline Light Gasoline Storage Durene Reacto r Heavy Gasoline H2H2 Treated Heavy Gasoline Heavy Gasoline Storage Blending Additives Gasoline Storage *1 – MTG Reactors *2 – Mix of gas, water and light HCs *3 – Boilers and Condensers not included *3 Gasoline For Sale

21 Environmental Review Production of methanol from synthesis gas generates a limited pressure to the environment. Methanol is a compound of relative low toxicity. All plant waste effluents will be regularly analyzed and checked to meet environmental restrictions and conditions. Environmental & Global Safety sintankimya.com

22 ZSM-5 Catalyst In the 1970's, Mobil synthesized a new zeolite catalyst (ZSM-5), which is a key element in the MTG process. Zeolites are porous, crystalline materials with three dimensional framework composed of AlO4 and SiO4 tetrahedral. ZSM-5 catalyst produces an unusual shape and has size selectivity properties suitable for gasoline synthesis. Methane diffusion through zeolite catalyst download_lo_res.html?id=

23 Syngas to Methanol Cu-Zn

24

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26 Different Sources of Methanol Natural Gas Coal Biomass Conversion to Syn-Gas ( Partial Oxidation) Municipal Solid Waste Why Syn Gas to make Methanol ? More Economical Better Methanol Purity More Efficient Methanol as a Feedstock


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