Energy consumption per ton of ion-exchange membrane caustic soda produced
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This post was last edited by sunjl1981 on 2013-1-6 at 23:18. I would like to ask what the approximate ranges are for the water, steam, raw salt, and electricity consumption per ton of ion-exchange membrane caustic soda produced? Calculate based on 100% NaOH # , , &
Clear water: 2.58 tons per ton of 100% caustic soda; pure water: 1.641 tons per ton of 100% caustic soda. Direct current energy consumption: 2144 kWh per ton of 100% caustic soda; alternating current energy consumption: 29 kWh per ton of 100% caustic soda. Steam: 0.796 tons per ton of 100% caustic soda; raw salt: 1600 kilograms per ton of 100% caustic soda. These are the performance metrics for our unit, with the direct current consumption increasing as the electrolyzer operates for longer periods of time. For your reference. This post was last edited by limingshuguang on 2007-12-5 16:41.]
Due to different processes, there are also certain differences in consumption. General technical appendices usually provide some description of the consumption of utility services; regarding electricity consumption, the technical appendices should include guaranteed values. Therefore, it is recommended to refer to the project’s technical attachments. :lol
1. Energy consumption indicators of ion membrane electrolysis units compared with those in the domestic industry Table 4: Comparison of energy consumption indicators for ion membrane caustic soda production (on a per 100 basis) in the chlor-alkali industry in 2006 Item: Raw salt, Total energy consumption, Direct current, Alternating current, Steam, Current efficiency, Voltage efficiency; Units: kg/t, kgce/t, kWh/t, kWh/t, kg/t, %, % Industry leader: 1517, 313, 2149, 2243, 0.06, 96.5, 73.9 Industry average: 1528.3, 372.86, 2241.5, 2346.4, 0.40, 94.12, 70.2 Our company: 1555.2, 327.0, 2322.0, 2400.7, 0.06, 93.4, 67.9 Beihua No. 2: 1535, 1180, 2353, 2452, 0.40, 92.7, 73.9 Shenyang Chemical: 1517, 479, 2176, 2243, 0.67, 93.5, 70.6 Shanghai Chlor-Alkali: 1629, 1018, 2244, 2337, 0.20, 96.5, 65.5 Hangzhou Electrochemical: 1552, 313, 2384, 2474, 0.19, 95.1, 64.5 Nanning Chemical: 1521, 359, 2149, 2262, 0.11, 95.9, 70.4 Jiangmen Electrochemical: 1683, 1200, 2310, 2398, 1.2, 94.1, 67.5 Note: Taken from the “Summary Table of Economic and Technical Indicators of Chlor-Alkali Enterprises in Various Provinces/Cities across China for 2006” issued by the China Chlor-Alkali Industry Association (April 2007). This post was last edited by hgm1964 on 2008-3-22 at 10:50
Upstairs, why is it that in your company, having just one good steam efficiency indicator is enough to reduce the overall energy consumption? How is this calculated exactly? ?