为了保障航空运输业可持续发展,实现温室气体减排目标,国际民航组织通过了"国际航空碳抵消和减排计划",并计划强制推行一系列实施与认证标准,这将对我国民航运输、化石航煤生产和航空生物燃料技术开发应用产生重大影响.针对这一新的变化趋势,本文介绍了国际民航组织碳减排计划概况,梳理总结了航空替代燃料可持续性标准框架内容,简述了国内外可持续航空生物燃料规模化应用现状,分析了对相关主要行业可能产生的影响,在此基础上提出应对措施及发展建议.研究指出,可持续航空生物燃料是民航业应对气候变化、实现碳减排的根本途径和最重要措施,产业链上下游各方应充分认清当前发展形势,加快制定完善国内相关规范与标准,协同配合共同应对国际磋商与谈判,同时加速推进工业生产示范装置建设和运行,并广泛开展交流与合作,建立完善"原料-炼制-运输-加注-使用"的完整产业链,实现行业可持续发展.
主要描述的是大型储罐的施工工艺技术,通过进行倒装法和正装法二者的施工工艺比较,得出了大型储罐的倒装施工工艺是最适合大型储蓄罐建设的技术,它不仅对于节约投资成本、提高技术安全性、提升施工质量都有极大的优势.
<正>中国石油兰州石化公司是集炼油、化工、装备制造、工程建设、检维修及矿区服务为一体的大型综合炼化企业,是国家"一五"期间156项重点工程项目,是新中国第一个现代化炼化生产企业,是中国西部重要的炼化生产基地,能源战略地位非常突出。公司现有在职合同化员工2.42万人,市场化和劳务用工0.4万人,集体职工0.4万人,总资产334亿元。
Windfall oil taxes have been in effect for 7 years in China and produced the intended effect;however, some problems have emerged with changing economic conditions.For instance,RMB appreciation as well as the reform of increasing resources tax virtually decreases the tax threshold.As a consequence of these problems,theoverall upstream tax burden for the domestic oil industry is heavier than what it would be in the US;profit margins are further reduced as the prices of refined oil are not increased to the level intended to preserve them,making the cost go up,making China’s oil enterprises’profitability lower than comparable foreign companies’,and thereby reducing the enterprises’reinvestment capability.In light of the lessons learned from net oil importers who don’ t levy windfall taxes,China should improve its oil supply security by improving its windfall oil tax policy,raising the tax threshold,taxing in a differentiated manner,adjusting the scope of application,as the case may be,and refining relevant policies.
综述了水性涂料的分类及成膜机理,重点介绍了我国水性环氧树脂涂料、水性丙烯酸酯涂料、水性聚氨酯涂料的研究现状,并介绍了水性涂料在机械制造方面的应用,最后指出了我国水性涂料的发展方向.
利用专用管道进行气、油、水及其他化学物品的输送,是当前公认的最安全、最有效的方式。石油就是其中的一种重要的输送物质,管道需要维护,更需要防腐,这样才能保证石油输送的安全和正常。
本文介绍了大型原油储蓄的防腐涂装饰工艺的施工技术和选择方法,通过对于油罐腐蚀背景的介绍使的人们对于这项工艺有了一定的了解。再通过建立新的原油防腐优化方案来提高油罐外壁、油罐外底板、油罐内底板和管内壁的使用寿命。
The west slope in Mobei-Mosuowan swell in Junggar basin lies chronically in the target area of oil-gas migration. From the north to the south of this slope, Mobei field, Mosuowan field and Moxizhuang oil field have been found. It is one of the oil-enriched structural belts in the hinterland part of Junggar basin, in which the reservoirs are all distributed along the swell side with arcuate and beaded configuration and controlled by faults, structures and deposition. However, these reservoirs with complex distribution are still of particularity and regularity. This paper analyzes and summarizes the regularity of hydrocarbon accumulation in this area for further exploration here in the future.
The development of mixed-substrate metal detergents is described.And the properties of sulfurized alkylsalicylate and mixed-substrate detergent from alkylsalicylic acid/alkylbenzene sulfonic acid are focused on. These products which are produced by two or more substrates exhibit improvements in performance over traditional sulfonates or salicylates metal detergents,with good prospect.