新型隔热涂料在储油罐上的应用与评价

介绍了以丙烯酸树脂为基料的新型隔热涂料的组成以及在防腐蚀与隔热功能方面的双效性能。该涂料适合用于轻质油罐外壁的涂装 ,在涂刷 2～ 3道 (不小于 6 0 μm)的情况下 ,可对太阳光热起到良好的反射和阻隔作用 ,从而使油罐表面温度降低 10～ 2 0℃ ,使罐内介质温度降低 5～ 10℃ ,同时具有优良的防腐蚀性能。对其经济效益进行了分析测算。     

油田新型环氧聚氨酯涂料

中油集团公司工程技术研究院研制成功ＳＵＰＥＲ ＰＵ环氧聚氨酯防腐涂料。该涂料是由环氧树脂、聚氨酯树脂、颜填料、助剂及溶剂组成的双组分常温固化涂料。该涂料除具备普通环氧树脂涂料的特性外 ,还兼得环氧涂料和聚氨酯涂料的优点 ,显著提高了耐酸性能 ,可在 0℃的环境和潮湿环境下施工使用。可用于石油行业原油、污水、注水系统的管、罐、容器、设备的内外壁防腐 ,化工、石化行业的设备内外壁防腐。其技术特点是固体含量高、溶剂污染小、固化温度低、环境适应性强 ,且耐酸、碱、油、水 ,性能优异。摘自《石油消息》1 999 1 0 2 0油田…     

添加V_2O_5对聚乙烯涂层耐阴极剥离性能的影响

聚乙烯 (PE)涂层已经广泛地用于干线用管防腐蚀 ,但一般有机涂层和电气防腐蚀并用 ,对阴极剥离性能有影响并存在问题时则需要改进。日本川崎制铁公司研究证明 :在聚乙烯涂层基体处理的环氧树脂底层涂料中 ,添加 V2 O5颜料 ,可提高其耐阴极剥离性能和粘着持久性。试验材料是 1 0 0 mm× 1 0 0 mm× 6 mm热轧钢板 ,经过喷丸处理后 ,部分进行铬酸盐处理 ,用手工涂敷环氧树脂 ,平均膜厚 5 0μm ,在 1 40℃×8.5 min下使之硬化。在环氧树脂中添加 V2 O5颜料 (0 .1～ 5 μm)后用搅拌器混合 ,用低密度 PE和无水马来酸变性粘着性 PE进行积层 ,在…     

660V电机防窃电节能技术

1 6 6 0V电机防窃电节能技术的基本原理目前应用的电机大部分是额定电压为 380V电机 ,线电压为 380V ,单相承受 2 2 0V电压 ,若使单相承受的电压提高到380V ,则线电压为 6 6 0V ,也就是将 380V电机额定电压提高到 6 6 0V ,可以改造成 6 0 0V电机 ,这样使窃电者无法直接应用 ,避免电量损失。6 6 0V电机配套设施主要组成如下 :(1) 6 6 0V变压器。根据现场需要 ,可选用 4 0 0V/ 6 0 0V变压器、 35kV/ 6 6 0V变压器等 ,变压器一般有 5～ 7个电压挡位 ,调压范围在 80 0～ 5 0 0V ,按照油井远近及节电需要 ,选择适当的电压等级。(2 )控制柜…     

己二酸的供需和生产能力

己二酸最大的用途是制造尼龙 6 6 ,它占其总产能的73%。尼龙纤维占其总市场的 4 7% ,尼龙树脂占 2 6 % ,非尼龙部门占 2 7% ,其中聚氨酯是最大的用途 ,其他用途为增塑剂、树脂、涂料和聚酰胺 4 ,6。己二酸也用于生产湿式增强树脂 ,用于制取造纸化学品和合成润滑剂及润滑脂。供需和生产能力　全球己二酸能力 2 .8Mt/a,欧洲能力约 1.10Mt/a。欧洲占世界消费量约 35% ,欧洲生产量由 2 0 0 1年 850kt/a增加剂 2 0 0 2年 90 0kt/a。表 1为世界主要的己二酸生产能力。预计今后几年全球己二酸需求年增长率为 4 %～4 .5% ,非尼龙应用领域增长率最高…     

国外信息

日本旭化成公司研制成功的新型聚烯烃类弹性体SOE,是以乙烯丁烯和乙烯丁烯苯乙烯聚合而成的。该弹性体可替代聚氯乙烯树脂。该公司正在建一套1 .5万 t/a弹性体生产装置 ,预计 2 0 0 2年春建成投产。日本三菱人造丝公司研制成功的炭纤维半固化预成型材料 ,是将聚丙烯腈类碳纤维浸入特种树脂中而制成的。该材料可制成型材 ,广泛用于航空、车辆、土木建筑、医疗器械、油田输油管、压力容器、印刷滚筒、体育器械及民用钓鱼竿等。日本积水树脂公司试制成功的自动除雪涂料及涂装技术 ,是将超疏水性涂料 ,涂覆于室外可落雪的部位 ,涂料以单向端部…     

高氯化聚乙烯涂料在石化企业的应用

高氯化聚乙烯涂料是近年来出现的一种新型产品。该涂料以高氯化聚乙烯 (HCPE)树脂及氯化石蜡等为主要成膜物 ,添加耐蚀颜填料组成单组分涂料。其分子中氯含量达 6 0 %～ 70 % ,不含双键 ,氯原子呈无规则分布 ,具有优秀的耐酸、碱、盐等腐蚀介质的性能。与传统的氯磺化聚乙烯等产品进行了比较 ;并介绍了在石油化工企业的钢结构架、储油罐外壁、输油管线外壁及硫酸生产厂房等部位的应用情况 ,其使用寿命接近 5年。     

水性丙烯酸树脂涂料的改性研究进展

目前,在桥梁、集装箱、船舶以及机车中水性丙烯酸涂料的应用得到了广泛的使用。传统单一的树脂涂料在热稳定性、机械性能以及耐水性、化学性能很差,存在着一定的局限性。为此,就需要针对水性丙烯酸树脂涂料在性能上提高附着的能力,要采用聚氨酯改性将其机械性能提高,同时采用纳米粒子进行改性将防腐蚀性能提高。本文针对水性丙烯酸树脂涂料在改性以及实际应用中进行分析和研究。     

原油储罐底板电化学保护及监测分析

兰州石化公司 6座大容量原油储罐的罐底板相继穿孔泄漏 ,通过分析指出为Cl-引起的电化学腐蚀所造成。在 2 0 0 0～ 2 0 0 1年期间 ,对 3座原油罐的罐底板及距底 1.5mm以上的罐壁采取了环氧玻璃鳞片涂料 +铝合金牺牲阳极联合保护 ,其保护电位可稳定在 - 9.0～ 1.0 0V范围。文章对罐底板保护电位的监测方法也进行了介绍     

叔丁基对苯二酚的合成

以对苯二酚和甲基叔丁基醚 (MTBE)为原料 ,D0 0 1树脂为催化剂合成了叔丁基对苯二酚 (TBHQ)。实验表明在甲苯和丁酮的混合溶剂中进行反应能显著提高TBHQ的选择性 ;较佳条件为 :对苯二酚 0 .0 5mol,D0 0 1树脂催化剂 1.1g ,甲基叔丁基醚 0 .0 36mol,溶剂 2 0mL ,V (甲苯 )∶V (丁酮 ) =4∶1,反应温度为(10 0± 2 )℃ ,反应时间为 2h ,对苯二酚的转化率为 5 1.4mol% ,TBHQ的选择性为 87.9mol%。对其后处理过程进行了探讨。     

阿姆河右岸酸性气田井口冲蚀及对策

中亚土库曼斯坦阿姆河右岸气田群为高含H_2S和CO_2的碳酸盐岩气藏,单井产量高,井口设备均出现了不同程度的腐蚀。初步分析认为其原因是生产过程中仅考虑酸性介质对气井井口的化学腐蚀,而没有考虑气体流速对井口的冲蚀作用,极大地影响了气田的安全生产。为此,通过对节流阀上下游阀道、法兰面均出现明显坑状腐蚀的进一步分析,明确了化学腐蚀和气体冲蚀的交互作用是井口磨损的主要影响因素,气流冲刷腐蚀坑的化学腐蚀产物会加速冲蚀损害;进而借鉴冲蚀与腐蚀运行环境下的多相管流管道的磨损计算理论,计算了该运行环境下的冲蚀极限速度,得到了不同生产工况下节流阀的抗冲蚀流量;最后,根据气田生产情况,针对性地提出了按气井配产要求来选择采气树类型、节流阀通径及类型冲蚀的技术控制策略。此举为气田安全生产提供了工程技术保障。     

山前地区深井超深井套管防磨与减磨技术研究

针对山前地区深井超深井钻井过程中套管磨损严重的问题,在分析套管磨损机理的基础上,开展了山前地区套管防磨与减磨技术研究,基于技术研究成果及应用实践,得到如下结论:1应用Power V等垂直钻井系统控制井眼轨迹,特别是上部井段的狗腿度和井斜,可明显减小侧向力和磨损量,缩短套管磨损时间;2应综合考虑套管磨损率、磨损系数以及钻杆耐磨带本身的磨损量,优选出效果最优的耐磨带;在狗腿度严重的位置,可考虑采用一定数量的橡胶钻杆卡箍来减轻对套管的磨损;3山前地区钻井液采用CX-300减磨剂能够显著降低磨损速率,减轻套管磨损程度,但在不同钻井液体系使用之前应进行优化分析以确定最佳使用量;4在迪那204井使用高密度钻井液体系,全部采用优选的高密度重晶石粉代替铁矿粉作为加重剂,整个钻进过程中未出现钻具及套管磨损,迪那204井易损件消耗量仅为邻井迪那203井的左右,防磨减磨效果非常显著。     

Biodiesel Projects Helpful to Ease Energy Shortage

Nearly 7,000 hectares of biodiesel forest will take shape in the northern province of Hebei in 2008, part of a national campaign to fuel the fast growing economy in a green way. In no more than five years, the Pistacia chinensis Bunge, whose seeds have an oil content of up to 40 percent, will yield five tons of fruit and contribute about two tons of high-quality biological diesel oil, according to the provincial forestry administration.     

State Energy Base Proposed in Inner Mongolia

Experts recently suggested China set up a state energy base in lnner Mongolia Autonomous Region to ease its energy thirst. The survey was co-conducted by senior researchers from the National Development and Reform Commission, Development Research Center of the State Council, Chinese Academy of Sciences and the Ministry of Finance. To plan and establish strategic energy bases at state level is in line with the principle of ＂giving priority to energy saving and diversifying energy consumption with the utility of coal at the core.＂     

Influence of Shale Oil Boom in North America upon nternational Crude Price Flucturation

正Current stituation of shale oil development in the world The US The country is blessed with abundant shale oil resources and had matersed whole sets of theories and technologies needed for their exploration and development after years of practices.According to an assessment of shale oil resources in major countries and regions of the world issued by the U.S.Energy Information Agency(EIA),the US ranks the second in the world with its 6.8 billion tons of technically recoverable shale oil(shale oil in place is about 136.3 tons).About 8plays had been confirmed to have     

A Sintering-resistant Pd/C Composite Catalyst for Ethylbenzene DehydrogenationDeveloped by CAS Institute of Metals

Carbon deposition is a commonplace phenomenon occurringin the catalytic reaction process, in particular inthe system of direct dehydrogenation of ethylbenzene,because the reactant - ethylbenzene molecules on thesurface of metal oxide catalysts are prone to quickly formcarbon deposits, leading to deactivation of catalysts. Recently,the associate research fellow Mr. Liu Hongyangand the research fellow Mr. Su Dangsheng of the StateShenyang Material Science （United ） Laboratory of theInstitute of Metal Research, CAS by taking advantageof the carbon deposition process during direct dehydrogenationof ethylbenzene have ingeniously designeda Pd/C composite catalyst. This catalyst in comparisonwith the traditional commercial carbon nanotubesupported Pd catalyst shows a significantly improved performancein terms of its catalytic activity and sinteringresistantability.     

ZPEB Overseas Markets Keep Steady and Efficient Development

In recent years, Zhongyuan Petroleum Exploration Bureau （ZPEB） has made rapid development in overseas petroleum markets through its integrated reorganization. A new international business plattbrm established, aimed at becoming a highly ranked contractor with international petroleum engineering technology. ZPEB has expanded its business scope and scale, regulated the market structure,     

New Era for China-Brazil Relations

China and Brazil celebrated the 40th anniversary of establishing diplomatic relations between the two countries in July this year. Bilateral relations between China and Brazil have entered a new stage, and experts expect the already extensive cooperation between the two countries to deepen and broaden as Chinese President Xi Jinping made a state visit to Brazil in mid-July, which is his first state visit to Brazil since he assumed the office last year. The visit to China＇s largest trade partner in Latin America is at the invitation of Brazilian President Dilma Rousseff.     

Large Scale Ethylene Production Package Technology SuccessfullyDeveloped by CNPC

The CNPC Group has successfully developed a largescaleethylene production package technology with independentintellectual property rights, which has beensuccessfully applied in the 1.2 Mt/a ethylene revamp andexpansion project at the Daqing Petrochemical Complex（DPC）.     

Recent Advancements in Petroleum E & P Equipments in China

The role of equipments in oil and gas exploration and development had never been attached with so much importance as that in shale oil and gas boom in the U.S. With the help of massive hydraulic fracturing and horizontal drilling techniques, the U.S., the world＇s No. 1 oil importer even started to dream about energy self-sufficiency with its proudly high production of shale oil and gas from several major shale plays in the country. However, what behind this remarkable achievement are powerful multi-stage hydraulic fracturing machinery and smart tools for directional drilling.