Summary of Wood Electrolyzer Posts (January 18, 2009)
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This post was last edited by sunjl1981 on 2013-1-6 at 22:22. To enable better participation and searching, please indicate in the title that it is a Wood electrolyzer when posting. Technical discussion thread: 1. Wood electrolyzers, DuPont’s membranes. Technical support. 2. I would like to ask the experts regarding the sealing gaskets used in German Wood electrolyzers. 3. What are the differences between Asahi Kasei’s, Beihua Ji’s, Chlorine Engineering’s, and Wood electrolyzers’ V=theoretical decomposition voltage+KD values? 4. What causes arcing at the outlet of the catholyte bellows in Wood electrolyzers? This post was last edited by sister on 2009-1-19 01:59. # + +
Summary of reference posts 1 Manufacturing of wood unit grooves 2 Introduction to wood independent unit groove technology
Table of Structural Characteristics of Ion-Exchange Membrane Electrolyzers
Item: Asahi Kasei, Wood Chlorine Engineering, Beihua Machinery
Electrolyzer Model: ML32NCH, BM-2.7, n-BiTAC886, ZMBCH-2.7
Number of Electrolyzers: 8, 8, 12, 8
Number of Cells per Electrolyzer: 160, 160, 86, 168
Efficiency in the First Year: 96% (January–June), 96% (January–March), 96% (January–March), 96% (January–February)
Membrane Cathode Efficiency: 95% (July–December), 95% (April–December), 95% (April–December), 95% (March–December)
Current Efficiency: 94% in the Second Year, 94% in the Third Year, 94% in the Fourth Year; 93.5% in the first three years and 92.5% in the fourth year.
Type of Membrane: Asahi Kasei F6801, DuPont 2030/Asahi Glass 8020, DuPont 2030/Asahi Glass 8020, Asahi Kasei F6801
Membrane Area: 3.66, 3.66, 3.66, 3.66
Effective Area per Cell (m²): 2.7, 2.72, 3.276, 2.7
Membrane Utilization Rate: 73.80%, 74.30%, 89.51%, 73.80%
Rated Current Density (KA/m²): 5.1, 5, 5.135, 4.88
Rated Current (KA): 13.77, 13.6, 16.822, 13.176
Energy Consumption per Ton of Caustic Soda (kW•h/t): 2150, 2140, 2100, 2160
Anode Coating Lifespan (years): 8, 8, 8, 8
Cathode Coating Lifespan (years): 8, 8, 8, 8
Cell Frame Lifespan (years): 10, 8, 8, 10
Membrane Lifespan
Electricity Cost (0.35 yuan/KW•h): 61654, 61323.1, 60341.8, 61993.4
Membrane Cost ($500/m²): 1677.2, 1677.2, 1352.2, 1761
Total Cost (10,000 yuan): 63331.2, 63000.3, 61694, 63754.4
Economic Comparison over the Lifespan: 1637.2, 1306.3, 0, 2060.4
Items: Asahi Kasei, Wood Chlorine Engineering, Beihua Machinery
Usage of Each Electrolyzer Model: Rich manufacturing experience and stable operation; good performance of the electrolyzers, with low energy consumption. There is little difference compared to Asahi Kasei NCH electrolyzers. Technical specifications are at a moderate level; the electrolyzers are known for their stability and lack of leaks. The membrane has a high current density, resulting in high initial investment. Operation is relatively stable, but maintenance can significantly affect production. It has a long expected lifespan, is easy to maintain, and results in low downtime; maintenance does not affect production. The welding quality of the L-plates in electrolyzers is good. Large; individual users have reported stable membrane performance. The decline rate is faster than expected.
Item: Asahi Kasei, Wood Chlorine Engineering, Beihua Machinery
Electrolyzer Model: ML32NCH, BM-2.7, n-BiTAC886, ZMBCH-2.7
Number of Electrolyzers: 8, 8, 12, 8
Number of Cells per Electrolyzer: 160, 160, 86, 168
Efficiency in the First Year: 96% (January–June), 96% (January–March), 96% (January–March), 96% (January–February)
Membrane Cathode Efficiency: 95% (July–December), 95% (April–December), 95% (April–December), 95% (March–December)
Current Efficiency: 94% in the Second Year, 94% in the Third Year, 94% in the Fourth Year; 93.5% in the first three years and 92.5% in the fourth year.
Type of Membrane: Asahi Kasei F6801, DuPont 2030/Asahi Glass 8020, DuPont 2030/Asahi Glass 8020, Asahi Kasei F6801
Membrane Area: 3.66, 3.66, 3.66, 3.66
Effective Area per Cell (m²): 2.7, 2.72, 3.276, 2.7
Membrane Utilization Rate: 73.80%, 74.30%, 89.51%, 73.80%
Rated Current Density (KA/m²): 5.1, 5, 5.135, 4.88
Rated Current (KA): 13.77, 13.6, 16.822, 13.176
Energy Consumption per Ton of Caustic Soda (kW•h/t): 2150, 2140, 2100, 2160
Anode Coating Lifespan (years): 8, 8, 8, 8
Cathode Coating Lifespan (years): 8, 8, 8, 8
Cell Frame Lifespan (years): 10, 8, 8, 10
Membrane Lifespan
Electricity Cost (0.35 yuan/KW•h): 61654, 61323.1, 60341.8, 61993.4
Membrane Cost ($500/m²): 1677.2, 1677.2, 1352.2, 1761
Total Cost (10,000 yuan): 63331.2, 63000.3, 61694, 63754.4
Economic Comparison over the Lifespan: 1637.2, 1306.3, 0, 2060.4
Items: Asahi Kasei, Wood Chlorine Engineering, Beihua Machinery
Usage of Each Electrolyzer Model: Rich manufacturing experience and stable operation; good performance of the electrolyzers, with low energy consumption. There is little difference compared to Asahi Kasei NCH electrolyzers. Technical specifications are at a moderate level; the electrolyzers are known for their stability and lack of leaks. The membrane has a high current density, resulting in high initial investment. Operation is relatively stable, but maintenance can significantly affect production. It has a long expected lifespan, is easy to maintain, and results in low downtime; maintenance does not affect production. The welding quality of the L-plates in electrolyzers is good. Large; individual users have reported stable membrane performance. The decline rate is faster than expected.
During that time, I didn’t believe that some of the figures were accurate; the AC power consumption for the tanks used in chlorine production processes couldn’t possibly reach the levels you mentioned. If it’s indeed the case, then I really need your advice
It was explained in great detail; it was very useful to read
It was well explained and very comprehensive; I learned a lot.
Thanks for providing such a detailed analysis
The introduction is very good and comprehensive; I’ve learned a lot, thank you!