8419400010

HS 编码 8419400010（第 84 章「机械器具」；子目 841940「蒸馏或精馏装置」）在英国税则中对应"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>"。英国海关对该编码商品征收进口关税（第三国税率） 0.00 %、增值税 (VAT) 20.00 %。