Clorosur Technical Seminar & WCC Safety Workshop. New Flemion Membranes for Zero Gap Configuration

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1 Clorosur Technical Seminar & WCC Safety Workshop New Flemion Membranes for Zero Gap Configuration

2 Contents Influence of Zero Gap on the membrane F-8080A : New Type of F-8080 series for Zero Gap Next Generation Membrane 1

3 Configuration of Finite Gap and Zero Gap Finite Gap Zero Gap Anode Membrane Cathode Expand Metal Anode Membrane Current Collector Elastic Cushion Fine Mesh Cathode Woven Mesh 2

4 Less Catholyte Flow at Membrane Surface Anode Finite Gap Membrane Membrane Anode Zero Gap Less Flow caused by the structure Current Collector Cathode Expand Metal Elastic Cushion Fine Mesh Cathode Woven Mesh Catholyte Flow Catholyte Flow 3 Less flow of catholyte at membrane surface removes less heat of membrane, which makes membrane higher temperature than catholyte outlet.

5 Higher Temperature in Zero Gap F-8080, 6 ka/m 2, 32 wt% NaOH, 200 g/l NaCl 98 CE (%) Finite gap 4 95 Zero gap with fine mesh cathode and elastic cushion Catholyte outlet temperature ( o C) The temperature of the membrane in zero gap is at least 5 o C higher than in finite gap.

6 Magnified View of Configuration Finite Gap Zero Gap Anode Membrane Anode Membrane Elastic Cushion Cathode Expand Metal Fine Mesh Cathode Woven Mesh 5

7 Less H 2 Gas Flow in Zero Gap Structure Finite Gap Anode Membrane H 2 gas Flow Anode Zero Gap Membrane Less Flow Elastic Cushion Cathode Expand Metal Fine Mesh Cathode Woven Mesh H 2 Gas Less flow makes more H 2 gas bubbles touch the membrane, caused by zero gap structure. 6

8 Higher H 2 in Cl 2 at Lower CD H 2 /Cl 2 on anode side at low CD in commercial size electrolyzer 1,4 7 H 2 /Cl 2 on anode side (vol%) 1,2 1 0,8 0,6 0,4 0,2 0 Finite Gap (0.8kA/m 2 ) Catholyteoutlet temperature ( o C) Zero Gap (0.7kA/m 2 ) Zero gap shows higher H 2 in Cl 2 than finite gap in same electrolyzer, which indicates more H 2 gas touches to cathode side surface of the membrane.

9 Contents Influence of Zero Gap on the membrane F-8080A ; New Type of F-8080 series for Zero Gap Next Generation Membrane 8

10 F-8080 : CE Decrease in Zero Gap F-8080, 6 ka/m 2, 32 wt% NaOH, 200 g/l NaCl 98 CE (%) Finite gap 9 95 Zero gap with fine mesh cathode and elastic cushion Catholyte outlet temperature ( o C) F-8080 in zero gap shows 0.5-1% lower CE than in finite gap at high temperature.

11 F-8080A : Higher CE at High Temperature Finite gap (Lab cell) 6 ka/m 2, 32 wt% NaOH, 200 g/l NaCl F-8080A CE (%) 96 F Catholyte outlet temperature ( o C) F-8080A shows more than 96 % CE even at 100 o C. 10

12 F-8080A : Higher CE in commercial size nx-bitac Zero gap (Commercial size nx-bitac) 6kA/m 2, 32wt% NaOH, 200g/l NaCl F-8080A in commercial size nx-bitac CE (%) 96 F-8080 in commercial size nx-bitac Catholyte outlet temperature ( o C) F-8080 in Lab with finite gap 11 F-8080A in commercial nx-bitac with zero gap shows high enough CE at high temperature.

13 F-8080A : Higher CE in Hydrated Condition Lab cell, 6 ka/m 2, 90 o C, 32 wt% NaOH 98 CE (%) F-8080A F NaCl (g/l) F-8080A shows higher CE in weak brine. 12

14 Features of F-8080A 1. Higher stability for zero gap Especially, higher CE at high temperature 2. Higher CE against hydrated state higher CE in weak brine 3. Same voltage and durability as F-8080 Low voltage and high durability Fine adjustment of F-8080 which has proven reliability 13

15 Contents Influence of Zero Gap on the membrane F-8080A : New Type of F-8080 series for Zero Gap Next Generation Membrane Lowest Voltage Higher CE in Wider Range Higher Durability against I/Ba 14

16 Lowest Voltage Unit : mv 2010 at 6 ka/m F-8020 Voltage Reduction F-8020SP F-8080 Next Generation F-8080A Fx mv 15

17 Stability of Lowest Voltage Unit : mv at 6 ka/m F-8020 Note; Prototypes;-30~-50mV Latest type after optimizing manufacturing process;-50mv Voltage Reduction F-8020SP BM2.7v5 (AGC Commercial Plant) BM2.7v6 (AGC Commercial Pilot) D.O.L F-8080 F-8080A Next Generation Fx mv Prototypes of next generation membrane keep stable low voltage in AGC commercial electrolyzers for over one year.

18 Key Technology of Next Membrane What is new? Three new technologies were optimally combined 17

19 Key Technology of Next Membrane Advantages Key Technologies Voltage Reduction Higher CE in Wider Range Higher Durability against I/Ba Fiber Arrangement Fine Ion Channel Uniform Ion Channel 18

20 Optimized Fiber Arrangement Conventional Cloth F-8080/F-8080A Optimized Cloth Next generation PTFE Fiber Sacrificial Fiber Making use of optimized fiber arrangement, this makes next generation membrane shows lowest voltage. 19

21 Higher CE in Wider Temperature Range 6 ka/m 2, 32 wt% NaOH, 200 g/l NaCl New Generation Next Generation F-8080A C.E. CE (%) F-8080 F-8080 F-8080A Catholyte Catholyte outlet outlet temperature temperature ( (deg-c) C) 20 Next generation membrane shows higher CE not only at high temperature but also at low temperature.

22 Higher CE in Weak Brine 6 ka/m 2, 90 o C, 32 wt% NaOH Next Generation CE (%) F-8080A F NaCl(g/l) Next generation membrane shows higher CE in weak brine. It is suitable for electrolyzers which have less inner circulation of brine.

23 Higher CE in Wider Range of Caustic Strength 6 ka/m 2, 90 o C, 200 g/l NaCl Next Generation CE (%) F-8080A F NaOH(wt%) 22 Next generation shows higher CE in weak and strong caustic.

24 Durability against I/Ba ka/m 2, 80 o C, I/Ba=20/1 ppm Next Generation CE (%) F DOL after addition Next generation membrane has higher durability against I/Ba. Note : Same durability against Ca as F

25 24 Furthermore!

26 Frequent Load Tensile Test Total number of frequent load tensile test until membrane breaking (Sum of the value to various direction. Load : 60 % of tensile strength) Ratio to F-8080 F-8080 F-8080A Next Fx-XXX Generation F-8080HD Next generation membrane is more robust than F-8080 and F-8080A. 25

27 Next Generation Membrane : Fx Lowest voltage 50 mv lower voltage than F-8080 and F-8080A Optimized fiber arrangement 2. Higher CE in both hydrated and dehydrated state Suitable for zero gap and finite gap Suitable for electorolyzer which has less inner circulation of brine 3. Higher durability against I/Ba 4. Better robustness 26 Large quantity of Fx-634 will be delivered from 2Q 2017.

28 Summary Influence of Zero Gap on the membrane Higher temperature due to less heat removal 27 F-8080A : New Type of F-8080 series for Zero Gap Advanced F-8080 for higher temperature and weak brine, for hydrated state. Fine adjustment of F-8080 which has proven reliability. Next Generation Membrane : Fx mv lower voltage than F-8080/F-8080A Higher CE in both more hydrated and more dehydrated state Durability against I/Ba and better robustness

29 Information of CTCN (Climate Technology Centre and Network ) 28

30 Importance of Energy Saving Expected energy consumption reduction by converting into membrane is 20-30%. Electrolysis Process Mercury Diaphragm Membrane Energy efficiency as

31 Potential financial scheme by UNFCCC COP 16 in 2010 established the Technology Mechanism. Climate Technology Centre & Network (CTCN) is the operational arm of the Technology Mechanism. Courtesy: Rajiv Garg, CTCN: Support implementation of NAMAs 30

32 Potential financial scheme by UNFCCC Services: The CTCN s mission is Stimulating technology cooperation and enhance the development and transfer of technologies to developing country Parties at their request 1. Technical assistance to developing countries 2. Knowledge sharing and training 3. Fostering collaboration on climate technologies (including linking climate technology projects with financing opportunity) 31

33 Overview of CTCN Services Climate Technology Centre and Network 1. Technical Assistance 2. Information and Knowledge 3. Collaboration and Networking Facilitate and enhance the transfer of climate technologies Environmentally sound technologies deployed Greenhouse gas emissions reduced and resilience to climate change increased Targets in INDCs achieved Courtesy: Rajiv Garg, CTCN: Support implementation of NAMAs

34 CTCN Technical Assistance Fast and short (3 pages) application process for countries Provided: To developing countries upon their request Free of charge (value up to 250,000 USD) State of the art and locally relevant expertise To academic, public, NGO, or private entities Courtesy: Rajiv Garg, CTCN: Support implementation of NAMAs

35 34 Thank you for your attention