Study on production process of terpolymer polypropylene with coal-based naphtha cracking ethylene/propylene/butene
The reasons of few domestic industrial companies for mass production of terpolymer polypropylene products were analyzed.The coal-based naphtha cracking ethylene/propylene/butene were used as raw materials,the coal-based naphtha cracking unit,polypropylene unit and polyethylene unit were coupled,and the independent process technology design was carried out on the original Novolen process unit for the production of copolymerized polypropylene.The conditions for the production of terpolymer polypropylene were obtained,and the production process was introduced in detail.Based on the calculation,compared with the direct introduction of a complete set of unit making terpolymer polypropylene,the equipment investment cost could be saved by 18 million yuan.Compared with the production of general yarn-grade polypropylene,the production of terpolymer polypropylene could increase the profit by 1 000 to 1500 yuan per ton.
NETL
NSTL
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