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全球丙烯需求增长率高于乙烯增长率,各种增产丙烯技术加快开发和应用。评述了以下增产丙烯的技术进展:蒸汽裂解增产丙烯技术,增产丙烯的催化裂化改进技术(包括深度催化裂化工艺、催化裂化增产丙烯的助剂和催化剂技术、其他FCC改进技术),丙烷脱氧技术,易位转化技术,甲醇制丙烯技术等。 相似文献
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《国内外石油化工快报》2007,37(5):31-33
用于催化裂解乙烯丙烯的流化床催化剂,催化裂解制乙烯丙烯的流化床催化剂,烯烃催化裂解生产丙烯、乙烯的催化剂,增产丙烯、乙烯的生产方法,高收率丙烯、乙烯的生产方法,丙烯的生产方法。[编者按] 相似文献
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孙可华 《国内外石油化工快报》2008,(5):13
华东理工大学化学与制药学院和中国石化上海石油化工研究院,研究在以ZSM-5为催化剂的甲醇制丙烯工艺(MTP)中,考察了甲醇分压和ZSM-5晶粒大小对甲醇制丙烯的影响。 相似文献
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介绍了丙烯直接水合-脱氢制取丙酮的新技术。利用X型耐温阳离子交换树脂作水合催化剂,L型铜-锌系金属物作脱氢催化剂,开发了丙烯直接水合制异丙醇,异丙醇脱氢制丙酮工艺。该技术具有流程简短,反应温度、压力较低,效率高等特点。 相似文献
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使用NJ型载铜吸附剂,以丙烯-丙烷-氮气为原料气,对变压吸附法回收本体丙烯聚合装置尾气中的丙烯进行了研究。测定了丙烯、丙烷、氮气3种单组分气体在NJ型载铜吸附剂上的吸附平衡,考察了不同压力、停留时间和顺放过程对丙烯吸附性能的影响。实验结果表明,在吸附压力为0.6 MPa、停留时间为2.4 min的条件下,丙烯、丙烷在NJ型载铜吸附剂上的分离系数为1.72;三塔循环变压吸附结果表明,在常温下NJ型载铜吸附剂具有稳定的变压吸附性能,丙烯回收率大于96%,纯度大于88%(φ)。 相似文献
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New catalytic materials, which may bring important improvement or technical breakthrough to the petroleum refining technology for producing reformulated gasoline and low sulfur and aromatics diesel fuel, are discussed. For the purpose of producing high octane number gasoline and light olefins for etherification and alkylation processes, major improvements are achieved by the use of high reactivity-stability MFI type ZRP and low cost beta zeolites. A solid P-W heteropolyacid supported on SiO2 for replacing currently used HF and H2SO4 in alkylation process of isobutane with butenes, is under the pilot trial. For the production of low sulfur and aromatics diesel fuel, high surface area supported metallic nitrides are under extensive studies. 相似文献
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1,2-丙二醇氧化制丙酮醛催化剂 总被引:5,自引:0,他引:5
研制用于 1 ,2 -丙二醇空气氧化合成丙酮醛的负载型改性银催化剂。试验结果表明 :γ -Al2 O3是较好的催化剂载体 ;分别用Zn、Ba、P、K等元素对负载银催化剂进行改性 ,都可提高丙酮醛选择性 ,尤以Zn的效果最好。并发现这些改性组份间存在协同效应 ,同时用Zn、Ba、P、K对银催化剂进行改性 ,丙酮醛的选择性最高 ,当反应温度 30 0℃、丙二醇空速 1 0h- 1、氧醇摩尔比 1 1时 ,丙酮醛选择性可达 90 0 %。 相似文献
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径向水平井生产管在内压下直径增长分析 总被引:1,自引:1,他引:0
采用爆破测试和有限元软件SAP5 0计算两种方法得到超短半径径向水平井生产管在内压作用下的胀径值并进行了对比。结果表明 :(1)A6 0 6薄壁管比A6 0 6厚壁管胀径值大 ,但两种管不承受弯曲仅承受内压时的胀径值并不大 ,70MPa下的最大值仅为 0 0 2 8mm ;(2 )有限元计算理论胀径值比实测胀径值大 ;(3)两种试验管在内压和弯曲共同作用下的胀径值约为内压直管胀径值的 7~ 10倍 ,说明生产管在内压和弯曲的共同作用下直径急剧膨胀 ,这对于转向器结构设计、调整间隙和制定径向水平井施工方案具有重要意义。 相似文献
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Fe-Co/SiO_2双金属催化剂上费托合成反应的研究 总被引:1,自引:0,他引:1
采用浸渍法制备Fe-Co/SiO2双金属催化剂,考察了不同反应温度、压力、空速下催化剂的反应性能。实验结果表明,在230~300℃的温度范围内,随反应温度升高,催化剂活性提高,甲烷选择性上升,水煤气变换程度逐渐增大,而C2~C4烯烃/烷烃比和C5+选择性下降;压力增加有利于反应活性的提高和重质烃的合成,当压力大于1.5MPa后,CO的转化率、水煤气变换程度、C5+选择性C2~C4烯烃/烷烃比变化不太明显;随空速增加,CO转化率下降,产物中低碳烃含量增加,说明高空速不利于重质烃的生成。XRD结果表明反应前催化剂主要成分为Co3O4和Fe2O3,反应后则为Fe-Co合金。 相似文献
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H. Vatanparast A. H. Alizadeh A. Bahramian H. Bazdar 《Petroleum Science and Technology》2013,31(18):1873-1884
Abstract Altering the wettability of the carbonate reservoir rocks from oil-wet to water-wet has figured prominently as one of the enhanced oil recovery methods in recent years. The authors measured the effect of different ionic surfactants on the wettability alteration of the rock, saturated with crude oil, and the consequent improvement in oil production was investigated by spontaneous imbibitions of solutions containing cationic, anionic, and cationic-anionic surfactant mixtures. A very low-permeable carbonate rock from one of the Iranian oil reservoirs was selected for this study. The results of imbibition tests were furthermore supported by measuring IFT, taking pictures of producing oil drops from different exterior core plug surfaces and also observing the distribution of the remaining oil in cores at the end of experiments. The results show that cationic surfactants at concentrations higher than CMC can cause a remarkable oil production through alteration of wettability and, moreover, the extent of oil production increases with temperature. In contrast, it is observed that the anionic surfactants are not able to change the wettability of an oil-wet surface and their combination with the cationic type would reduce the oil production potential of cationic surfactants. 相似文献
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CRUDE OIL GEOCHEMISTRY AND SOURCE ROCK POTENTIAL OF THE UPPER CRETACEOUS – EOCENE SUCCESSION IN THE BELAYIM OILFIELDS,CENTRAL GULF OF SUEZ,EGYPT
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W. Sh. El Diasty S. Y. El Beialy A. R. Mostafa A. A. Abo Ghonaim K. E. Peters 《Journal of Petroleum Geology》2015,38(2):193-215
This study evaluates the petroleum potential of source rocks in the pre‐rift Upper Cretaceous – Eocene succession at the Belayim oilfields in the central Gulf of Suez Basin. Organic geochemical and palynofacies investigations were carried out on 65 cuttings samples collected from the Thebes, Brown Limestone and Matulla Formations. Analytical methods included Rock‐Eval pyrolysis, Liquid Chromatography, Gas Chromatography and Gas Chromatography – Mass Spectrometry. Four crude oil samples from producing wells were characterised using C7 light hydrocarbons, stable carbon isotopes and biomarker characteristics. The results showed that the studied source rocks are composed of marine carbonates with organic matter dominated by algae and bacteria with minimal terrigenous input, deposited under reducing conditions. This conclusion was supported by n‐alkane distributions, pristane/ phytane ratios, homohopane and gammacerane indices, high concentrations of cholestane, the presence of C30 n‐propylcholestanes, and low diasterane ratios. The source rocks ranged from immature to marginally mature based on the Rock‐Eval Tmax together with biomarker maturity parameters. The analysed crude oil samples are interpreted to have been derived from source rock intervals within the Eocene Thebes Formation and the Upper Cretaceous Brown Limestone. The similarity in the geochemical characteristics of the crude oils suggests that there was little variation in the organofacies of the source rocks from which they were derived. 相似文献
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采用负载型非茂金属(SSTS)催化剂催化乙烯淤浆聚合,制备了交联聚乙烯管材专用料(sPE);通过过氧化物交联sPE、挤出成型了过氧化物交联聚乙烯(sPEXa)管材;考察了氢气分压和共聚单体对SSTS催化剂活性的影响;测试了sPE的相对分子质量及其分布(MWD)、力学性能和流变行为及sPEXa管材的交联度和力学性能。实验结果表明,SSTS催化剂催化乙烯聚合的过程平稳、共聚效应显著,SSTS催化剂在乙烯-己烯共聚时的活性比乙烯均聚时的活性提高了43%;sPE中不含粒径小于75μm的细粉,其重均相对分子质量高达296 564,MWD=4.05;sPE的流变行为呈明显的"剪切变稀",有利于挤出加工;sPEXa管材在95℃、4.8 MPa静液压力下无泄漏和无破裂的持续时间长于1 875 h,长于行业要求的1 000 h。 相似文献
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介绍了4,4′-二氨基二苯醚合成方法的研究进展,阐述了其工艺条件。经过分析比较,认为以对硝基氯苯为原料用改进的一步缩合法合成4,4′-二硝基二苯醚中向体,然后再催化加氢得到4,4′-二氨基二苯醚是较好的合成路线。 相似文献
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变排量压裂技术及其现场应用 总被引:6,自引:0,他引:6
提出了一种变排量压裂技术,对其机理和应用条件进行了探讨。认为通过排量的瞬间跃变,可在控制压裂裂缝缝口高度向下延伸的同时将支撑剂输送至裂缝更深处,增大支撑缝长;同时快速提高砂比会在缝口形成楔形砂堤,降低近井油流阻力。对13口井的应用效果进行了统计分析,原油平均增产83.31%,含水平均升高9.56个百分点,有效地实现了增油控水。该项技术现场操作简单,增产效益显著,是生产层与上下隔层间地应力差值小的薄油层、底水油帽油藏的有效增产措施,具有一定的推广价值。 相似文献