共查询到20条相似文献,搜索用时 93 毫秒
1.
中国的石油产业并不是很丰富,大致经历了四个发展阶段,石油的安全等制约了中国石油产业的发展,石油的缺口比较大,石油工人积极在开发,进行石油化工等生产。本论文从石油发展现状、石油形式与供需预测、石油发展的总体思路与战略重点进行阐述中国石油发展战略研究。 相似文献
2.
3.
4.
5.
6.
7.
8.
中国石油公司在海外的人力资源管理,无论是对本国员工还是外籍员工,只有考虑到两国之间的文化差异,才能达到油地和谐、共同发展的战略局面。哈萨克斯坦是我国石油方面非常重要的战略合作伙伴之一,近年来,我国与之在石油方面的合作日益加强,同时,带来的问题也日益增多,其中最主要的就是人力资源管理,如何团结发挥两国员工的最大力量日趋成为讨论的话题。 相似文献
9.
10.
11.
12.
13.
本文介绍了液化石油气样品按SH/T0230—1992《液化石油气组成测定在(色谱法)》标准测定组成后(?)据GB/12576—1997《液化石油气蒸汽压和相对密度及辛烷值计算法》标准的算法,利用计算机技术对所测得液石油气的组成进行转换计算,继而快速准确计算出液化石油气的密度和蒸汽压。 相似文献
14.
15.
目的 从石油文化特色出发,提炼视觉符号用于文具产品设计中,赋予其人文情怀,传承石油文化,发扬石油精神,唤起消费者的兴趣。方法 以“石油元素”的视觉符号提取为切入点,从造型、色彩、材质3个视角,物质、造型、精神3个层面,深入剖析其形象符号,提炼其中典型的视觉要素,将其创造性地应用于文具用品设计中,并形成系列。设计中注重造型元素和风格的统一,同时也考虑到人体工学与需求、功能、材料、颜色、美感等的协调。结论 对设计要素的创新应用,是构建特色城市外在形象和内在文化的重要媒介,“石油元素”的提炼和再设计,是需要在深入研究石油文化内涵的基础上,融入恰当的设计思维和表现形式,为具有石油特色的城市的纪念品设计提供一些思路。 相似文献
16.
为了探究稻壳类生物质油替代石油沥青的微观作用机理,以稻壳类生物质油和6种石油沥青为原材料,制备稻壳类生物沥青。采用针入度、软化点和延度指标评价稻壳类生物沥青的物理性能,通过傅里叶红外光谱实验(FTIR)和高温凝胶色谱实验(GPC)探究稻壳类生物沥青的微观作用机理。研究表明,稻壳类生物质油会使石油沥青的针入度和延度增大,同时使软化点略有降低;稻壳类生物质油与6种石油沥青的官能团相似,且生物沥青制备时未产生新的官能团;随着稻壳类生物质油的掺加,6种生物沥青中的小分子和中分子含量增加,大分子的含量变化不大,稻壳类生物质油小分子和中分子含量较多,生物沥青的数均分子量Mn和重均分子量Mw均降低。稻壳类生物质油的加入,使石油沥青的低温性能提高,流动性增大,高温性能稍有降低但并不会降低石油沥青的高温等级,稻壳类生物质油可以作为石油沥青的替代材料使用。 相似文献
17.
A study of the physical characteristics of baked carbon mixes employing calcined petroleum coke, coal-tar pitch coke, metallurgical coke and anthracite coal has been made to explore their relative suitability and area of application. It is revealed that petroleum coke and pitch coke lead to a carbon product of almost the same density and electrical resistivity. However, the crushing strength of the product employing pitch coke is 1 1/2 times that of the one employing petroleum coke. The carbon product produced from the metallurgical coke is found to be slightly inferior in respect of density and electrical resistivity and slightly superior in respect of crushing strength when compared with that made from petroleum coke. The use of anthracite coal results in a carbon product of significantly lower density and much higher electrical resistivity than that of the product using the petroleum coke. However, the strength of the anthracite coal-based carbons is found to be nearly double that of the petroleum coke-based carbons. Thus, the significance of the present study lies in the fact that the above findings help one to estimate a possible filler composition for a carbon product possessing the desirable critical characteristics. 相似文献
18.
19.
Although mass spectrometry has been studied extensively in the past 50 years for analysis of petroleum and other fossil fuels, comprehensive characterization of total petroleum composition across a wide boiling range remains a challenge. In this work, we report our efforts in combining GC separation, field Ionization, and time-of-flight high-resolution mass spectrometry (GC-FI-TOF HRMS) for detailed analyses of petroleum products with a carbon number range of C6-C44. GC separates hydrocarbon molecules by boiling points. FI generates intact molecular ions for both aromatic and saturate petroleum molecules eluting from the GC. The elemental compositions of these molecular ions are consequently resolved and identified by TOF HRMS with a mass resolving power up to 7000 (M/deltaMfwhm) and mass accuracy of +/-3 mDa, which in turn yields chemical information (heteroatomic content, number of rings plus double bond, and carbon number) for the petroleum molecules. The ability to resolve sulfur-containing hydrocarbons is greatly enhanced because of the unique combination. 相似文献
20.
A study of the physical characteristics of baked carbon mixes employing coal tar and petroleum pitches as the binder has been made to explore their relative suitability in the fabrication of carbon products. The study reveals that coal tar pitch is the most suitable binder and a petroleum pitch of the same softening point leads to a carbon product of much inferior characteristics. Raising the softening point of the petroleum pitch from 78 to 150° C or adding 10 parts of carbon black in the lower softening point pitch, increases the density, strength and also the electrical resistivity of the baked carbons. The addition of 10 parts of carbon black to the higher softening point petroleum pitch leads to a carbon product with further improved values of density and strength, which are comparable to those obtained with the coal tar pitch. However, the electrical resistivity also is marginally increased. It appears that a petroleum pitch of high aromaticity may fulfill the requirements expected of a good binder. 相似文献