Corrosion inspection of carbon-9 resin plant equipment I. Analysis of corrosion mechanisms and discussion on anti-corrosion measures

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This post was last edited by cjhti on 2020-4-9 at 22:40. Carbon nine petroleum resin is produced through catalytic polymerization using carbon nine with a boiling range of 140–200°C as the raw material. The main active components in the carbon-9 fraction include vinyl toluene, indene, and methylindene, etc. The catalyst used is generally boron trifluoride or an ether complex of boron trifluoride. The reaction process generally includes initiation, propagation, transfer, and termination reactions. After the reaction is complete, sodium hydroxide solution is used to react with the catalyst, rendering it inactive, and it is then separated from the resin oil through washing. Production parameters of cold polymerization reactor 1: Pressure 0.1 MPa ； Temperature: 55°C, Material: S31603+Q345R ； Composite material, 316 with a thickness of 3mm.