催化剂级配技术在加氢改质装置上的工业应用

基于柴油产品质量升级的需求,中国石化大连石油化工研究院(FRIPP)开发了FHIDW加氢改质技术及配套FF-46加氢精制催化剂、FC-14B加氢改质催化剂和FDW-3临氢降凝催化剂.该技术及催化剂级配体系在格尔木炼油厂0.8 Mt·a-1加氢改质装置上的工业应用情况表明,级配催化剂体系对原料适应性强,装置运转平稳,操作灵活性高,催化剂失活速率慢,产品分布合理且质量优异,在降低柴油产品凝点的同时可以明显改善其密度和十六烷值,解决了改造前装置生产重柴油密度偏低的问题,为炼油厂生产符合国V质量标准的柴油提供了技术保障.     

基于信号增强的缓慢泄漏检测方法

目前管道泄漏检测方法可有效检测突发泄漏，对于缓慢泄漏则存在检测灵敏度低、定位不准确等问题。基于此，提出了一种基于信号增强的缓慢泄漏检测方法。通过信号压缩（抽取及移位）克服缓慢泄漏压力信号下降平缓的缺点；根据声波信号具有波形尖锐突出、对突发泄漏敏感的优点，通过建立以压力为输入、虚拟声波为输出的声波信号变送器模型，将压力信号转换为声波信号，克服了泄漏压力信号容易被淹没在管道压力波动及背景噪声中的缺点，实现了缓慢泄漏信号的增强；利用临近插值方法重构虚拟声波信号，基于延时互相关分析实现了缓慢泄漏的准确定位。实验结果表明，该方法具有显著的信号增强效果和定位精度，实现了缓慢泄漏的准确检测。     

5052铝合金无缝薄壁管扩口性能研究

通过对比进口料和国产料的组织,确定了提高5052合金管材扩口性能组织的改进方向为细化组织晶粒度,消除组织各向异性。对比拉伸法和轧制法,发现轧制法生产的管材退火后组织晶粒更细小且各向异性更小。通过退火制度摸索,确定采用(470℃～490℃)×4h制度退火后的轧制管材组织的均匀程度最好,扩口成功率最高,完全可以达到实际应用需求。     

“望闻问切”法在选煤厂安全管理中的应用

为了提升选煤厂安全管理,使人员不安全行为、设备安全隐患、环境危险源以及管理中存在的漏洞得到有效管控;论述了选煤厂安全管理与传统中医诊断疾病"望闻问切"相结合,将选煤厂安全作为有机整体进行管控的思路和方法,并对"望闻问切"在选煤厂安全管理应用情况进行了介绍。分析认为,通过"望闻问切"可准确把握存在隐患,切中安全管理中的要害,确保选煤厂安全管理无死角,实现人员零伤害、设备零缺陷、管理零漏洞、环境零污染,维护企业的健康运行。     

新一代IP QoS的实现

文章介绍了新一代IP骨干网上的IP QoS实现技术，论述了集成业务(IntServ)与差分业务(DiffServ)解决方案的特点，详细介绍了相关的队列管理与排队机制。并结合多协议标签交换（MPLS)技术的最新发展，阐述了综合多协议标签交换流量工程与DiffServ技术体系端到端IP QoS的实现。     

重介选煤厂自动化控制系统

介绍了重介选煤厂实现全自动控制的系统原理及所能实现的各项功能。     

多模激光自混合干涉实验与理论分析

根据单模激光自混合干涉的基本理论，基于多模竞争，建立多模激光自混合干涉模型，分析多模激光的自混合干涉波形。理论分析与实验观察表明，多模自混合干涉信号是激光管腔长的谐波函数，利用光强波 包络信号可进行大量程测量；激光模数增加有利于测量分辨率的提高；光强波动信号对应激光管等效腔长的整数倍时，可获得最大干涉信号调制深度。     

Study on Luminescence Properties of High-Density Phosphors BiTaO4∶Pr3+ and BiTaO4

The photoluminescence properties of BiTaO4∶Pr3+ and BiTaO4 at room temperature were studied, and the infrared transmission and diffusion reflection spectra of BiTaO4 were measured. The photoluminescence spectrum of BiTaO4 peaks at about 420, 440 and 465 nm. There has an obvious excitation band from 330 to 370 nm. The photoluminescence spectrum of BiTaO4∶Pr3+ consists of the characteristic emission of Pr3+, and its main peak is at 606 nm from 3P0→3H6 transition of Pr3+. Its excitation spectrum consists of the wide band with maximum at 325 nm, the wide band in the range of 375～430 nm, and the characteristic excitation of Pr3+. The bands at 325 nm and 375～430 nm may be from the absorption of the charge transfer transition of the tantalate group and defect energy levels in its forbidden band, respectively. There is energy transfer from host to Pr3+. Because both the host density and photoluminescence peak intensity of BiTaO4∶Pr3+ are superior to PbWO4, BiTaO4∶Pr3+ may be a potential heavy scintillator.     

新型低伤害压裂液的研究与应用

针对安棚油田特低孔特低渗、储层温度高、微裂缝发育等地质特征 ,通过室内实验 ,研制出具有耐高温、低伤害、延迟交联等特点的新型压裂液体系 ,并进行了 2 0多井次的现场试验。结果表明 ,该压裂液具有很好的适应性 ,完全可满足安棚油田特低孔特低渗储层压裂改造的要求     

Study on Luminescence Properties of High-Density Phosphors BiTaO4：Pr^3＋ and BiTaO4

The photoluminescence properties of BiTaO4:Pr^3 and BiTaO4 at room temperature were studied, and the infrared transmission and diffusion reflection spectra of BiTaO4 were measured. The photoluminescence spectrum of BiTaO4 peaks at about 420, 440 and 465nm. There has an obvious excitation band from 330 to 370nm. The photoluminescence spectrum of BiTaO4:Pr^3 consists of the characteristic emission of Pr^3 , and its main peak is at 606 nm from ^3P0→^3H6 transition of Pr^3 . Its excitation spectrum consists of the wide band with maximum at 325nm, the wide band in the range of 375-430nm, and the characteristic excitation of Pr^3 .The bands at 325nm and 375-430nm may be from the absorption of the charge transfer transition of the tantalate group and defect energy levels in its forbidden band, respectively.There is energy transfer from host to Pr^3 . Because both the host density and photoluminescence peak intensity of BiTaO4:Pr^3 are superior to PbWO4, BiTaO4:Pr^3 may be a potential heavy scintillator.