Abstract
The fast catalytic pyrolysis of polystyrene in the hydrocarbon medium (light and heavy cycle oil) over zeolite catalysts at 450–550 °C was investigated. The influence of reaction conditions (medium, temperature, vapor residence time, polystyrene concentration) on polymer conversion and product distribution was studied. It was found that the polymer conversion is close to 100%, while ethylbenzene, benzene, and toluene are the main products of its transformation. The maximum yield of ethylbenzene (80%) was achieved at 550 °C, vapor residence time 1–2 s, polystyrene concentration 10%, and heavy cycle oil as the medium. The influence of zeolite topology on product distribution was explored. The possible mechanism of polystyrene pyrolysis was proposed.
Funder
Russian Science Foundation
Subject
Polymers and Plastics,General Chemistry
Reference47 articles.
1. Statista (2022, December 23). Annual Production of Plastics Worldwide from 1950 to 2021. Available online: https://www.statista.com/statistics/282732/global-production-of-plastics-since-1950/.
2. Letcher, T.M. (2020). Plastic Waste and Recycling: Environmental Impact, Societal Issues, Prevention, and Solutions, Elsevier Science.
3. Organization and management in sectors of national economy;Novikova;Econ. Manag.,2021
4. Technologies for chemical recycling of household plastics—A technical review and TRL assessment;Solis;Waste Manag.,2020
5. Legacy additives in a circular economy of plastics: Current dilemma, policy analysis, and emerging countermeasures;Wagner;Resour. Conserv. Recycl.,2020
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献