| 摘要 |
The invention refers to a moistening and salt-reducing composition utilized in crude oil storing tanks in refineries, characterized in that it comprises: 20-50 percent by volume of a pluracol with a molecular weight of 3000-6000 g-mole, 20-50 percent by volume of a polymerized polyol of 8000-12000 g-mole, and 40-60 percent by volume of an aromatic solvent as a vehicle.
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