Process and equipment for continuous catalytic polymerization aggregation of C9 petroleum resin

Abstract

The invention relates to a process and equipment for the continuous catalytic polymerization aggregation of C9 petroleum resin. The process adopts multi-tower refining for separating and refining C9 raw materials, and adopts a continuous catalytic polymerization technique and a solvent and low polymer stripping technique for realizing automatic continuous large-scale production, wherein a stripping tower used in the stripping technique comprises two major parts, namely a distilling section and a stripping section; the distilling section is provided with a plurality of layers of fillers for better separating gas and liquid components; and the stripping section adopts a multi-stage stripping device for stripping. The process and the equipment can overcome the drawbacks in the production process of the conventional process such as uneasy stable control, high energy consumption and unstable product quality. The C9 petroleum resin produced by the process and the equipment is improved in color phase and resin softening point.

Description

technical field [0001] The invention relates to a production process and equipment of C9 petroleum resin products, in particular to a continuous catalytic polymerization integration process and equipment of C9 petroleum resin. technical background [0002] The 20~260℃ pyrolysis distillate produced in petroleum cracking, after thermal polymerization or in BF 3 , AlCl 3 Polymerization under the action of a catalyst can obtain petroleum resins with different properties. Petroleum resins are widely used in the fields of coatings, inks, adhesives and rubbers. Because of their tackiness, bonding and compatibility with other resins, they are often blended with other polymer materials to improve the performance of related products. . In recent years, the application of petroleum resin in our country is in a stage of rapid development, with an annual growth rate of more than 12%. The import volume of high-end special-grade petroleum resin is increasing year by year, and the gap o...

AI Technical Summary

Problems solved by technology

The existing C9 petroleum resin production technology in China is based on the old foreign technology, most of which adopt the relatively primitive single-pot batch technology, and the reaction conditions are difficult to control strictly; using mixed C9 or coarsely separated C9 as the initial raw material, The produced product has a darker hue and is unstable; in the desolventization process, a vacuum kettle evaporation process is generally used, but the design of the evaporator used in this process is relatively difficult, the polymer viscosity is high, and the heat transfer effect is worse especially in the later stage of evaporation. The local temperature in the evaporator is too high, which deteriorates the hue of the resin, and even cokes in severe cases

Due to the above reasons, most C9 petroleum resin manufacturers have problems such as small production scale, low output, single product variety, and unstable quality.

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