共查询到16条相似文献,搜索用时 221 毫秒
1.
2.
3.
4.
5.
6.
Shell—Paques生物脱硫技术及其应用 总被引:1,自引:0,他引:1
Shell—Paques技术是有代表性的生物脱硫及硫回收工艺,该工艺采用脱氮硫杆菌在弱碱性溶液条件下吸收H2S,从含硫酸性气中脱除H2S,并在自然产生的微生物和空气的作用下将所吸收的硫化物氧化成元素硫,具有净化效率高、适应范围广、操作维护方便、环保效益好、副产生物硫磺等特点。可用于合成气、天然气、炼厂气等含有H2S的酸性气的净化过程。简要介绍了Shell—Paques生物脱硫技术的基本原理、工艺流程、技术特点及在国内外的应用概况。 相似文献
7.
8.
本文阐述了近十年来加氢脱硫催化剂的一些进展,其中包括催化剂主要成分活性组分、载体的一些变化,并阐述了改进后的催化剂产生的新性能。其中,对于催化剂的加氢脱硫活性为Co-Mo<Ni-Mo>Ni-W,对不同的工业过程可采用不同的催化剂组合,载体除了传统的y-Al2O3外,近年来还研究了TiO2,ZrO2,复合氧化物,介孔分子筛或沸石等载体,具有较高的活性。在制备方式上,传统的加氢脱硫催化剂主要采用浸渍法,将金属组分直接浸渍于y-Al2O3载体上,然后进行干燥、焙烧即得氧化态的催化剂。近年来,也出现了采用免焙烧式的加工工艺,以FCC汽油重馏分为原料,实验得免焙烧式的催化剂有很高的加氢脱硫活性。 相似文献
9.
10.
11.
面对清洁燃料生产的新机遇和新挑战,研究者开发出各种柴油脱硫技术。由于氧化脱硫技术能将油品中的硫化物以有机硫的形式脱除,并具有操作条件温和、工艺投资和操作费用低、环境污染少等优点,已成为近年来国内外研究开发的热点,被称为21世纪的绿色柴油脱硫工艺。介绍了近年来国内外的柴油氧化脱硫技术,并提出未来的研究方向。 相似文献
12.
本文综述了应用于石油生物脱硫的主要菌种及其脱硫机理、微生物的选育优化、微生物脱硫动力学,介绍了微生物脱硫技术的工业化应用。 相似文献
13.
氨法脱硫是低浓度SO2烟气脱硫方法中较传统的工艺,采用液氨或氨水作为吸收剂,具有脱硫效率高、无环境污染、运行成本低、副产物价值高等特点,可充分利用中国资源丰富的液氨生产市场需求量大的农用硫肥和精细化学品。介绍采用湿式三级氨法脱硫技术处理大型硫磺制酸装置尾气并副产固体亚硫酸铵的基本机理、工艺流程、主要设备和生产应用效果,并指出氨法脱硫在替代传统的钙法脱硫方面具有广阔的应用前景。 相似文献
14.
目前我国电动汽车的发展进入了瓶颈阶段,即无法实现商业化。制约电动汽车商业化的障碍主要有:电池充电时间长,效率低;整车价格贵、汽车整体运行成本高;缺乏足够的充换电网络和专业的维修网点。在现有技术条件下解决电动汽车商业化的有效途径是采取换电模式,其优点为:没有技术障碍问题、换电站投资成本低、缩短车辆的等待时间、提高电池的使用寿命、降低电池的使用成本。目前应由国家制定统一的电池标准和充电设备等标准,并依托中石油、中石化、南方电网等央企来构建充换电网络。 相似文献
15.
Anne Mesny Nicolas Pinget Chantale Mailhot 《Canadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l\u0027Administration》2016,33(4):290-303
Technology transfer, and its focus on research commercialization, is gaining popularity in all academic fields as a way to better demonstrate universities' external impacts. We conducted a multiple case‐study of three commercialization projects in Organizational Development, Information Technology, and Marketing, which took place in a university business school. We explored to what extent the technology transfer model of commercializing academic outputs could apply in business schools. We also examined its potential value compared to other ways of sharing academic expertise. Although the technology transfer approach appears to work, the three projects exhibited crucial characteristics that markedly differ from traditional technology transfer. Compared to other forms of knowledge uses, what makes research commercialization so attractive is that it is readily observable and traceable. However, it raises some fundamental questions about knowledge production and its use. Copyright © 2015 ASAC. Published by John Wiley & Sons, Ltd. 相似文献
16.
A small but significant percentage of the discoveries made by university researchers have commercial value, especially in fields such as the biomedical sciences, material science, and information technology. Early stage technologies emerging from university labs represent an important source of innovation for technology firms in the United States (US), especially those located in close proximity to elite universities in regions characterized by high levels of entrepreneurial dynamism. Based in part on the U.S. demonstration effect, policymakers in the developing world increasingly view universities as institutions capable of accelerating technology-based economic development. In this article we examine the efforts of elite universities in Chile, Mexico, and Brazil to transfer faculty inventions to the marketplace. On average these institutions have upgraded commercialization infrastructure since the mid-2000s and a select few are beginning to generate significant licensing revenue and viable spinoffs. We conclude with policy recommendations and suggestions for future research. 相似文献