This dissertation takes the practical typical plants in petrochemical industries as the research background . it focuses on several typical theory and engineering issues in petrochemical process modeling and optimization 论文以石化工业过程实际装置为背景，探讨了石化工业过程建模与优化中若干典型的理论与工程实际问题及其解决策略。
We are serving for all works of life such as cleaning products and daily cosmetics , petrochemical processing , toy and stationery , drugs and health food , food and drink label printing as well as processing various printing handlings 经营范围：不干胶6 - 9色日化洗涤类、石化润滑油类、食品保健类、电子玩具类印刷，上光、烫金、覆膜、激光防伪、电脑打孔、防伪标、特殊印刷等。
It also analyzes the affects and challenge of crude oil line , petrochemical process , refine , oil marketing . the transnational corporations bring the challenge to our petrochemical industry due to their low costs and high - efficiency international competence . it analyzes the challenges on techniques research and innovate , foreign trade , circumstances protection and intellectual , property protection , and so on 分析入世后对原油开采类、石化加工类、炼油类、油品流通类等相关子行业的影响与竞争压力：兼并联合后的大型跨国公司凭借其低成本、高效益的国际竞争力，冲击我国石油化工市场，给我国石化产业带来严峻挑战；还分析了我国石油化工产业入世后面临的技术研发与创新、对外贸易、环境保护、知识产权保护等方面的严峻挑战。
