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1.
介绍了恩德粉煤气化技术在化肥厂改造工程中的应用情况,标定结果表明,恩德气化炉不仅能生产合成氨的原料气,而且具有操作负荷弹性大、操作简单、运行稳定和维修工作量小等特点。  相似文献   

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刘艳苹  龙钰 《当代化工》2011,(12):1241-1243,1251
介绍了国内某新建千万吨级大型炼厂350万t/a重油催化裂化装置设计及开工运行情况.装置采用美国UOP公司的RFCC工艺包,加工加氢裂化尾油、减压蜡油和减压渣油的混合原料.主要介绍了主要技术特点、开工运行及标定情况.  相似文献   

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对热工标定数据的分析,能客观评价烧成系统的运行情况.热工标定是一项庞大的系统工程,前期准备工作十分重要.现场测量完成后,将所有标定记录的原始数据进行汇总,并分析评估,得出结论并给出合理化建议,特别是对不足之处的改进方向和具体措施,提供给工厂进行实施.  相似文献   

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介绍了中国石油大庆石化公司1.2Mt/a加氢裂化装置主要技术特点及催化剂装填情况,通过标定对装置的原料性质、处理能力、操作参数、物料平衡、产品收率,装置能耗及设备运行状况进行考察,并对标定数据进行讨论和分析。标定和运行结果表明,装置运行平稳,高负荷运转时各项指标能满足生产要求;催化剂性能良好,对原料适应性强,加工方案灵活,产品质量优良且分布合理,液体收率、加工损失率都在指标要求范围内。此次标定为装置今后的平稳长周期运行、生产操作优化以及产品质量升级提供依据。  相似文献   

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黄冠云 《广东化工》2010,37(3):201-203
文章介绍了采用国产化超低压连续重整技术的广州石化100万t/a催化重整装置技术特点及运行情况,存在问题及优化整改措施,标定结果表明,装置运行情况良好,各经济技术指标均达到设计要求。自行开发并具有自主知识产权的超低压连续重整成套技术在广州石化的首次工业应用获得成功,标志着中国重整技术上了一个新台阶。  相似文献   

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介绍了SANC-08丙烯腈催化剂的性能,及其在齐鲁石化公司8万t/年丙烯腈装置工业应用情况。运行及标定结果表明:催化剂在较宽的工艺条件范围,具有丙烯腈收率高、丙烯选择性好、反应温度低且可在低空比下运行等特点。标定期间:丙烯单耗为1019.98kg/t.AN,氨单耗为500.3kg/t.AN,丙烯腈装置精制回收率为96.98%,属国内同类装置领先水平。  相似文献   

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探讨了水泥窑协同处置生活垃圾后余热锅炉的热风条件变化,通过对水泥窑热工标定和余热锅炉热工计算等方式,全面评估余热锅炉的运行工况,并详细分析和计算了SP余热锅炉改造的可行性和收益,为水泥企业节能降耗提供依据,对实际生产具有指导意义。  相似文献   

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中国石油天然气集团公司为应对汽油质量升级,首批采用具有自主知识产权的GARDES技术新建7套汽油加氢改质装置,大庆石化为其中规模最大的一套。本文介绍了采用GARDES技术设计建设的大庆石化130万吨/年汽油加氢改质装置的催化剂预处理、装置开工及初期运行情况。2013年10月装置正式开工运行,开工后装置一直平稳运行,11月29日分别在85%、100%负荷两种方案下完成装置初期标定;初期运行及标定结果表明,在85%负荷和全负荷状态下,通过GARDES工艺技术,汽油产品硫含量均能达到30μg/g以下、硫醇硫含量能够控制在10μg/g以下,RON损失为0.2~0.4个单位。GARDES技术可根据实际生产需求灵活调整负荷,催化剂具有优异的加氢脱硫及脱硫醇性能,同时具有较低的RON损失,完全满足催化汽油加氢改质装置生产国IV标准清洁汽油需求,解决了企业汽油质量升级的重大问题。  相似文献   

9.
张渊博 《河南化工》2021,38(9):53-54
对脉冲涡流现场检测进行了分析.通过对运行中有包覆层(内有铁磁性夹杂物)的管道、有包覆层(无铁磁性夹杂物)和裸管进行检测对比,并对检测标定部位进行讨论.介绍了脉冲涡流检测的工作原理、检测注意事项、检测结果如何保证精确度等问题.在有铁磁性干扰下脉冲涡流腐蚀扫查存在误差,脉冲涡流具有较高的灵活性,配合超声测厚可达到较高准确性.  相似文献   

10.
黄培林  周永顺 《煤化工》2004,32(4):38-40
全面介绍了恩德粉煤气化技术工程设计与生产运行实例,并对生产运行中技术指标进行了分析和标定,测试结果表明恩德炉的单炉生产能力和气体有效成分均达到了设计要求,同时指出了该技术在合成氨行业中的应用前景。  相似文献   

11.
Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.  相似文献   

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Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.  相似文献   

16.
收集了2005年7月~2006年6月国外塑料工业的相关资料,介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比,介绍了中国塑料的生产情况。按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、通用热固性树脂(酚醛、聚氨酯、不饱和树脂、环氧树脂)、特种工程塑料(聚苯硫醚、液晶聚合物、聚醚醚酮)的品种顺序,对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。  相似文献   

17.
收集了2007年7月~2008年6月世界塑料工业的相关资料,介绍了2007~2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.  相似文献   

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Inorganic/organic hybrid materials have considerable promise and are beginning to become a major area of research for many coating usages, including abrasion and corrosion resistance. Our primary approach is to prepare the inorganic phase in situ within the film formation process of the organic phase. The inorganic phase is introduced via sol-gel chemistry into a thermosetting organic phase. By this method, the size, periodicity, spatial positioning, and density of the inorganic phase can be controlled. An important aspect of the inorganic/organic hybrid materials is the coupling agent. The initial task of the coupling agent is to provide uniform mixing of the oligomeric organic phase with the sol-gel precursors, which are otherwise immiscible. UV-curable inorganic/organic hybrid systems have the advantages of a rapid cure and the ability to be used on heat sensitive substrates such as molded plastics. Also, it is possible to have better control of the growth of the inorganic phase using UV curing. It is our ultimate goal to completely separate the curing of inorganic and organic phases to gain complete control over the morphology, and hence optimization of “all” the coating properties. Thus far, it has been found that concomitant UV curing of the inorganic and organic phases using titanium sol-gel precursors afforded nanocomposite coatings which completely block the substrate from UV light while maintaining a transparent to visible light. Also, it has been found that the morphology of the inorganic phase is highly dependent on the concentration and reactivity of the coupling agent. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004, in Chicago, IL.  相似文献   

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Ethanol and α-pinene were tested as attractants for large wood-boring pine beetles in Alabama, Florida, Georgia, North Carolina, and South Carolina in 2002–2004. Multiple-funnel traps baited with (−)-α-pinene (released at about 2 g/d at 25–28°C) were attractive to the following Cerambycidae: Acanthocinus nodosus, A. obsoletus, Arhopalus rusticus nubilus, Asemum striatum, Monochamus titillator, Prionus pocularis, Xylotrechus integer, and X. sagittatus sagittatus. Buprestis lineata (Buprestidae), Alaus myops (Elateridae), and Hylobius pales and Pachylobius picivorus (Curculionidae) were also attracted to traps baited with (−)-α-pinene. In many locations, ethanol synergized attraction of the cerambycids Acanthocinus nodosus, A. obsoletus, Arhopalus r. nubilus, Monochamus titillator, and Xylotrechus s. sagittatus (but not Asemum striatum, Prionus pocularis, or Xylotrechus integer) to traps baited with (−)-α-pinene. Similarly, attraction of Alaus myops, Hylobius pales, and Pachylobius picivorus (but not Buprestis lineata) to traps baited with (−)-α-pinene was synergized by ethanol. These results provide support for the use of traps baited with ethanol and (−)-α-pinene to detect and monitor common large wood-boring beetles from the southeastern region of the USA at ports-of-entry in other countries, as well as forested areas in the USA.  相似文献   

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