HS 编码	商品描述	首要税率
8419400010	Pre-assembled process module unit of an ethane cracker unit, containing: <br>-quench water circulation loops, which contain a heat exchanger and circulation pumps to cool and recirculate quench water,<br>-a water purification system, which removes hydrocarbon contaminants from quench water which is then re-used for dilution steam production (outside the module),<br>-a pyrolysis oil purification system, which separates pyrolysis gasoline, heavy oil and coke fractions from the hydrocarbon contaminants that have been removed from the quench water,<br>-an ethane feedstock start-up vaporizer and superheater, which vaporizes and heats ethane feedstock before sending the ethane to the cracking furnaces (outside the module),<br>-a propane feedstock preparation system, which filters, vaporizes and superheats propane feedstock, before sending the propane to cracking furnaces (outside the module), and <br>-a chemical grade propylene preparation system, which filters and dries chemical grade propylene before sending it to the deethanizer (outside the module)<br>	0.00 %
8419400090	Other	0.00 %

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