Molten Salt Catalyzed Gasification

Transcription

1 Molten Salt Catalyzed Gasification October, 2013

2 Western Hydrogen Limited A Canadian Company Based in Calgary, Alberta Technology Development & Commercialization Idaho National Laboratory (a US DOE laboratory) Pilot unit fabricated and starting operation Pilot facility fabricated by Zeton in Ontario Pilot permanently installed in Alberta Technology: Molten Salt Catalyzed Gasification (MSG) 2

3 MSG Process Economic & Environmental Advantages: Significantly Lower Hydrogen Supply Costs No oxygen plant & no compression Maximum Feedstock Flexibility Coke, coal, asphaltenes, methane, bio-mass, etc. Lower GHG Emissions ~ 32% less than gasification High Pressure Hydrogen Production ~ 2000 PSIG: ideal for industrial uses & transportation fuelling Lower cost capture of CO 2 Separate stream of CO 2 3

4 Molten Salt Gasification (MSG) Water CO 2 is Separated Lower Cost CO 2 Capture Carbon Compounds MSG Reactor Hydrogen ~2000 PSIG Make-Up Sodium Salts Alternate Output Synthesis gas No Oxygen Plant No Gas Compression Single, Small Reactor Fischer Tropsch 4

5 Process Chemistry Inputs: carbon, water, alkaline salts & electric (pilot) Outputs: H 2, CH 4, CO 2, H 2 S & inorganic components Primary Process Reactions: Conducted at psi and O C 2 Na 2 CO C + 4 H 2 O 4 Na + 5 CO H 2 2 Na + 2 H 2 O H NaOH 2 NaOH + C + H 2 O Na 2 CO H 2 Both exothermic and endothermic reactions Net energy balance is slightly endothermic Melt is primarily Na 2 CO 3 + NaOH 5

6 Energy KW Amount (kmol) Modeling The System Gas Composition versus X water with 5300 kg or 10 X of Na2CO3 at pressure E N E R G Y kwh X Water (stoichiometric) COS(g) H2O(g) H2S(g) C Heat CH4(g) CO(g) CO2(g) H2(g) 6

7 Models Validated by Tests On-line GC Sulfur analysis Feedstock Gas Clean-up Reactor 7

8 Testing Showed Good Results 3 & 5 Reactors Reactor feed 12 grams/m H 2 O 2 grams/m residual Na salt with water Typical output H 2 : 65% Volume CH 4 : 5% Volume CO 2 : 25% Volume CO: 5% Volume H 2 S: Trace 10

9 Pilot Plant in operation SIZE: 12 x 12 x 48 9

10 MSG Reactor is Unique Operates at ~ 850 deg C Pressure up to 2000 psig External pressure boundary Does not contact melt Not exposed to hydrogen Has redundant pressure relief Highly instrumented Pilot uses electric heat Designed to operate on multiple types of feedstock 10

11 125 Street Range Road 220 Pilot & Demo Plant Location CITY FORT SASKATCHEWAN STRATHCONA COUNTY Township Road 554 Aux Sable Canada Shell Fort Saskatchewan BP Petrogas Edmonton Dow Chemical Keyera River Road Hydrogen Pilot Plant Highway 15 11

12 Plant site layout Treated water Waste water Residual tank 12

13 Pilot plant site in Alberta Waste Water Residual Treated Water 13

14 Pilot plant skid Capacity: Output: 200 MSCF/D Inputs: Water: 10 GPM Residual: 2 BPD 14

15 Batch Pressure Tests Used a set amount of: Residual Salt melt Varied amounts of water Temperature (900 deg C) Pressure (~ 1450 psig) Obtained expected results Almost pure hydrogen (95%+) CO 2 & H 2 S came out with condensed water 15

16 Output can be varied with input Vary residual, water, and salt melt ratios Modify operating conditions Can generate hydrogen, synthesis gas, methane, or combinations Sulfur is retained in melt until equilibrium is reached Ranges (volume %) H 2 0% - 85% CH 4 0% - 45% CO 2 0% - 32% CO 0% - 23% H 2 S 0% - 4%

17 Coke-Fed MSG Capex Estimate $ Millions Gasifiers & ASU Cleanup Comp Feed 160 Reactors Cleanup Feed 25 MMSCFD 99.9% Pure H PSIG H $ China 2 X 50% Reactors 1000 PSIG 50% Contingency 0 BOP* Gasifier BOP* MSG *Balance of Plant Confidential 17

18 Coke-Fed Supply Costs $/Kg H Coke MMSCFD 99.9% Pure H PSIG H $ China Endothermic (Gibbs) $100/Tonne Coke $100/MWh Power Export Power Credit 10% RT Discount Rate 1.50 O&M Capex Export Power Credit Partially Offsets O&M 0.00 Gasifier MSG 18

19 CO 2 Intensity Kg CO 2 /Kg H SMR Steam Methane Reforming % Less % Coke Coke Gas Less Gas 0 Gasifier MSG SMR MSG 19

20 Summary Experienced technical and business team Technology status Modeled and verified in laboratory tests High pressure operation verified Can vary output gas stream Materials appear to be feasible Pilot system completed and operating Economics are favorable Lower GHG emissions Lower cost CO 2 capture Competes with best available technology 20