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raw material purification
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根据烯烃原料所含杂质情况,有针对性地设置脱水、脱氧、脱不凝气、脱硫和脱砷等精制工序,脱除相应的杂质,以提高精制烯烃的质量,达到降低聚烯烃产品能耗的聚合物生产工艺。是烯烃(如乙烯、丙烯)聚合过程中的主要操作单元之一。
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safety of oil and gas pipeline maintenance
safety of oil and gas testing
safety of oil production downhole operation
safety of oxygen systems
safety of plate shears
safety of pressure casting
safety of railway traffic
safety of sand falling cleaning operation
safety of sand mixing operation
safety of special equipment supervision and management
safety of stamping machinery
safety of transgenic medicinal resourses
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safety operation of civil engineering system
safety operation of crane
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safety pedagogy
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safety performance evaluation
safety period of fertility alteration
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更新时间:2025/3/16 13:10:45