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| Application of lithium bromide refrigeration technology in oil leaching plant |
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| DOI：10.12166/j.zgyz.1003-7969/2020.10.026 |
| KeyWord:lithium bromide refrigeration secondary steam thermal energy crude oil thermal energy exhaust gas temperature paraffin oil temperature |
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| Abstract: |
| The utilization of the thermal energy of the secondary steam produced by the secondary evaporation and the thermal energy of the stripped crude oil was studied. By installing a lithium bromide refrigerator, the 75 ℃ cycling hot water from the lithium bromide refrigerator was heated to 95 ℃ by the thermal energy of the secondary steam and the stripped crude oil through heat exchanger for heat absorption system of the lithium bromide refrigeration. The 7 ℃ frozen water form the lithium bromide refrigerator was used to cool the exhaust gas and paraffin oil, and then the forzen water with 12 ℃ was returned to the refrigeration system of the lithium bromide refrigerator for recycling. Through the use of lithium bromide refrigerator, the solvent consumption for the 2 500 t/d soybean processing plant was reduced by 0.13 kg/t（on the basis of soybean mass）, and the heat load of the condensation system was reduced by 1 172 979.04 kJ/h. The design was of great significance to the stability of production and the improvement of economic benefits of oil leaching plants. |
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