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本文摘要介绍明达电厂二台PG6541B燃机在1999年内燃用180#重油方面的经验和问题,涉及水洗,抑钒剂,点火等方面,并讨论了重油机组长时间烧轻油和推力瓦温升高等特殊情况。 相似文献
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七十年代的石油危机,迫使西欧、美、苏、日等工业国家,积极从事替代能源和节约能源的研究。水油乳化燃烧技术,是其中之一。我国从五十年代末期,便在这方面开展了一些工作,首先是在重油中渗水,近几年又在柴油掺水汽油掺水方面做了些可喜的努力。近一二年,乳化燃烧技术,又因国外一些学者、专家、厂商推荐不同的新型超级重油。引起了各方面的关注。因此,我们就重油掺水这一技术在国内应用的现状做了一次调查,并参阅了一些国外资料,就重油渗水的使用情况 相似文献
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通过总结该项节能技术应用于贮油库的设计原则,简析乳化燃烧的主要机理,并结合其长期运行实践,提出重油乳化装置在结构设计、运行操作管理和重油乳化助燃剂技术配方的设计等方面,为解决在贮油库乳化重渣油所面临的大容量集中乳化、混产混贮混烧和要求乳化稳定期较长等技术难题应采取的若干技术措施。 相似文献
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改善重油燃烧、提高燃烧效率是燃油玻璃熔窑需进一步解决的一个问题。重油燃烧过程由雾化、蒸发、裂解、混合、着火燃烧等阶段组成。目前重油燃烧存在的问题有:重油在较长时间贮存过程中会产生氧化物和聚合物,生成一种不溶性油泥,油泥和沥青质易堵塞过滤器滤网,沉积在管道中,影响油的雾化;重油中的水分如较高且不分散,会导致燃烧火焰不稳定,发生回火,造成喷嘴积炭;重油在燃烧前瞬时喷散雾化,轻组分易蒸发裂 相似文献
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绪言在燃烧重油时,由于重油中含有硫分,造成锅炉空气预热器等的低温腐蚀,同时硫分从锅炉烟囱排向大气,由于随烟尘降落而造成大气污染,所有这些都成为燃烧重油的问题之一。日本所用的重油多数是从中近东输入的原油,重油含硫较高,所以对重油中的硫分是特别值得研究的课题,目前正研究从重油中直接脱硫或采取注入附加剂的方法,而采用低过量空气系数改善锅炉燃烧的方法是非常有效的,有关单位对此所作的研究都取得了很大的成绩。低过量空气燃烧也称作低氧燃烧,这项技术在欧洲研究和发展得很快,近年来日本的锅炉运行单位和制造厂也开始重视这项研究工作,并且已发表了不少有关低氧燃烧方面的文章。拔柏葛日立公司在英国柏拔葛公司协助下,兴建了很多低氧燃烧的锅炉,现将其中一部分锅炉的概况作如下介绍。 相似文献
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本文从石油钻探特点出发,并就钻机驱动、传动方式、使用地区、油田环境以及多燃料燃烧等诸方面问题来探讨柴油机性能、零部件结构以及使用维修等方面的适应性要求,并提出相应技术对策。 相似文献
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在一台采用紧凑型水冷旋风分离器的410 t/h循环流化床锅炉上进行以石油焦、油页岩混合物为燃料的锅炉热力性能试验,对温度、汽水流量、烟气污染物排放及灰渣含碳量等多个参数进行了分析.结果表明:锅炉以石油焦和油页岩的混合物为燃料,添加石灰石脱硫,在锅炉实际运行负荷下热效率为90.89%;炉内密相区温度分布均匀;床温、分离器入口温度、排烟温度和回料腿温度稳定;主蒸汽流量、给水流量、减温水流量波动小;烟气污染物均可控制在较低水平. 相似文献
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The aim of the research was to determine fuel properties and burning characteristics of sour plum (Ximenia americana L.) seed oil compared with Jatropha curcas seed oil when unblended and blended with kerosene. Fossil oil fuel products have witnessed increased demand all over the world with prices reaching new peaks. Sour plum (Ximenia americana L.) seed oil as one potential biofuel was evaluated to determine its fuel properties as substitute for kerosene. The seed oil was blended with kerosene in varying ratios and the parameters: burning rate and flame height determined. The blended oil was also burned in modified kerosene stove. It was found that Density, viscosity, fire point, carbon residue and ash content influenced its burning parameters. Parameter burning characteristics and energy transfered improved with increasing blend of kerosene. In conclusion, Ximenia americana L. seed oil when blended with kerosene in ratio above 10% can supplement kerosene as biofuel. 相似文献
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Xiangxin Han Bin Chen Xiumin Jiang 《Energy Sources, Part A: Recovery, Utilization, and Environmental Effects》2016,38(16):2447-2453
Retorting is one of the above-ground methods available for producing oil from oil sands, which also releases solid wastes such as oil sand semicoke. Although some oil sand retorting technologies have been explored and developed, such as rotary kilns and fluidized beds (FBs), there is little information on the components of their semicoke. Considering the semicoke to be a potential hazardous waste, this work first prepared the semicoke from retorting Indonesian oil sands, and then analyzed its components using different techniques, such gas chromatograph–mass spectrometer and X-ray diffractometer (XRD). The obtained results reveal that semicoke is a combustible fuel with a major proportion of toxic aromatic hydrocarbons and calcite. Based on the studies on the components of the semicoke and the characteristics of the FB retorting technology, a new oil sand utilization system with dual FBs is finally recommended for retorting oil sands in one fluidized bed and burning the semicoke in the other one. 相似文献
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Operational guidance for the efficient use of combustion in the cleanup of a surface oil film, formed as a result of a spill at sea, is sought by approximate analysis. In remediation by burning, the spilled oil itself provides the energy for its cleanup. Attention is focused on situations holding relative ly far from the source of the spill and/or relatively long after the spill: the oil is taken to have so dispersed that the thickness of the film is on the order of a few millimeters. Under such conditions, the oil film is unlikely to burn without the use of multiple towed booms, each boom spreading its already-ignited, localized fire to continuously collected, previously unignited portions of the oil film. A simple, quasisteady, two-dimensional analysis suggests efficient values for the tow speed and the tow-line length as functions of such parameters as the oil density, oil-film thickness, oil burn/evaporation rate, etc. The analysis leads to specific suggestions for apparently unreported laboratory experiments that may be informative prior to at-sea operation. 相似文献
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在一台S195直喷柴油机上进行燃料燃烧对比试验,试验结果表明,燃用生物柴油和乙醇柴油会使柴油机的动力性有所下降,其中菜籽油生物柴油的动力性接近纯柴油燃料的动力性,乙醇柴油的动力性相对较差。生物柴油和乙醇柴油的油耗率都比纯柴油要高,生物柴油的油耗率要高于乙醇柴油。但随负荷的增大,这种差距呈下降趋势。生物柴油和乙醇柴油在较大工况范围都可以保持比纯柴油燃料较低的CO排放量。低负荷状态下改善不明显,甚至会增大;高负荷工况下,混合燃料的CO排放比纯柴油降低较多。绝大部分工况下,生物柴油和乙醇柴油燃料的HC排放都比纯柴油高。绝大部分工况下,生物柴油和乙醇柴油的NOx排放和碳烟排放都比纯柴油低,其中生物柴油的表现优于乙醇柴油。 相似文献