共查询到19条相似文献,搜索用时 93 毫秒
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炼化一体化--未来石油化工发展的方向 总被引:3,自引:0,他引:3
分析了炼化一体化的优势,并以印度信任工业有限公司的炼化一体化项目、中海油南海石化1200万/年炼油项目和中海油壳牌石化80万吨/年乙烯项目的一体化设计为例介绍了炼化一体化的经验,指出了炼化一体化过程中尚需研究解决的几个问题。 相似文献
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天津石化100万t/a乙烯炼化一体化项目建设用时27个月零19天,为国内100万t/a级乙烯炼化一体化项目树立了一个标杆;炼油、乙烯装置开车一次性成功,乙烯开车打通一体化全流程仅用了12小时56分钟,创出了行业内的纪录。在顺利开车之后,一体化项目各套装置开车成功之后很快达到了设计负荷,项目产品的各项指标完全符合设计要求... 相似文献
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蒸汽裂解制乙烯的发展趋势 总被引:2,自引:0,他引:2
综述了蒸汽裂解制乙烯的原料构成现状和发展趋势,从乙烯装置大型化、长周期运转、节能降耗、提高生产灵活性和炼化一体化等方面论述了蒸汽裂解制乙烯技术的发展趋势. 相似文献
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催化干气是炼化一体化企业催化装置副产气体,富含乙烯、乙烷,原普遍作为装置自用燃料气。本文根据某企业催化干气提纯项目规划方案,对催化干气提纯后作乙烯原料进行了技术经济评估,并与石脑油和丙烷进行了对比。结果表明,催化提纯干气乙烯收率大大高于石脑油和丙烷,其经济效益也高于石脑油和丙烷。同时也表明,催化提纯干气作乙烯原料的经济效益受天然气和乙烯价格等因素影响较大。 相似文献
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我国来自炼油厂和石化装置的碳四(C4)烃资源非常丰富,与此同时,C4烃用作传统液化石油气燃气的需求量正逐渐减少,C4烃资源综合利用成为企业的关注热点。本文介绍了国内外C4烃转化与利用技术的开发进展及工业应用情况,包括丁烯异构化、丁烯歧化、C4烯烃催化裂解、异丁烷脱氢、异丁烯制甲基丙烯酸甲酯(MMA)、C4烃芳构化与烷基化等。认为对炼化一体化企业而言,将炼油厂C4和裂解C4整合在一起,应用增产低碳烯烃、醚后C4生产高辛烷值汽油组分、C4组分相互转化以及向下游高附加值产品延伸等技术,未来将具有较好的发展前景,不仅可为市场提供所需的燃料与化学品,而且有利于提升企业经济效益。 相似文献
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针对环氧乙烷水合制乙二醇反应精馏过程反应热的利用和系统能量更大集成问题,提出一种将反应段和提馏段分割、从反应段移出热量供提馏段加热的内部热集成反应精馏塔(R-HIDiC)的设计。利用Aspen Plus模拟软件,分析了内部热集成的可能性,优化了内部热交换量及其分布,给出了一种不需要再沸器的能量最大集成方案。研究表明,与传统的反应精馏塔相比,通过对内部热集成进行优化,乙二醇反应精馏塔可取消再沸器,系统需要的能量只由环氧乙烷水合反应热和外部压缩机提供,其操作费用将降低约47.2%,总费用将降低约39.1%,体现了其技术和经济优越性。 相似文献
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乙烯联合装置能耗分析和节能技术 总被引:1,自引:0,他引:1
在石油资源日益紧张的情况下,作为石化行业能耗大户——乙烯装置的能耗分析和节能技术的研究意义非凡。根据科技原创力理论和集成技术创新思路对乙烯联合装置能耗进行分析,指出影响乙烯综合能耗的因素依次为裂解原料、裂解技术、分离流程、配套设施(公用工程、外围工程)。采用裂解原料优化、裂解技术改进、分离流程进步和配套设施改造等一系列节能技术从而使乙烯联合装置综合能耗分别下降10.23%,4.91%,2.95%,0.98%,0.59%以上,合计降低19.66%综合能耗。 相似文献
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Fanghong Zhu Shaofeng Wang Lan Shan Qunxiong Zhu 《Chemical engineering science》2009,64(15):3498-3055
In the first three papers of this series, it has been shown that strengthening internal heat integration within a reactive distillation column involving reactions with high thermal effect is really effective for the reduction of utility consumption and capital investment besides the improvement in process dynamics and operation. One important issue that remains unstudied so far is the influences of reaction selectivity upon the reinforcement of internal heat integration, since the reaction operation is often accompanied by side-reactions and the maintenance of a high selectivity is extremely necessary in process synthesis and design. A reactive distillation column synthesizing high-purity ethylene glycol through the hydration of ethylene oxide is chosen and studied in this work. Because of the unfavorable physicochemical properties of the reacting mixture separated (e.g., the fairly large volatility between the reactants and the existence of a consecutive side-reaction), the process represents a challenging problem for the reinforcement of internal heat integration. Intensive comparison is conducted between the process designs with and without the consideration of further internal heat integration between the reaction operation and the separation operation involved, and it has been found that seeking further internal heat integration still leads to a substantial reduction of energy requirement, in addition to a further abatement in capital investment. Moreover, a favorable effect is again observed upon the process dynamics and operability. These striking outcomes manifest evidently that seeking further internal heat integration should be considered in process synthesis and design irrespective of what a reaction selectivity has been assigned. 相似文献
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