...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Conversion & Management >Enhancement of the efficiency of the Open Cycle Phillips Optimized Cascade LNG process
【24h】

Enhancement of the efficiency of the Open Cycle Phillips Optimized Cascade LNG process

机译：提高开放式菲利普斯优化级联LNG工艺的效率

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study aims to improve the performance of the Open Cycle Phillips Optimized Cascade Process for the production of liquefied natural gas (LNG) through the replacement of Joule-Thomson (JT) valves by expanders. The expander has a higher thermodynamic efficiency than the JT valve. Moreover, the produced shaft power from the expander is integrated into the process. The study is conducted using the Aspen HYSYS-V7 simulation software for simulation of the Open Cycle Phillips Optimized Cascade Process having the JT valves. Simulation of several proposed cases in which expanders are used instead of JT valves at different locations in the process as at the propane cycle, ethylene cycle, methane cycle and the upstream of the heavies removal column is conducted. The optimum cases clearly indicate that expanders not only produce power, but also offer significant improvements in the process performance as shown by the total plant power consumption, LNG production, thermal efficiency, plant specific power and CO2 emissions reduction. Results also reveal that replacing JT valves by expanders in the methane cycle has a dominating influence on all performance criteria and hence, can be considered as the main key contributor affecting the Phillips Optimized Cascade Process leading to a notable enhancement in its efficiency. This replacement of JT valves by liquid expanders at different locations of the methane cycle encounters power savings in the range of 4.92-5.72%, plant thermal efficiency of 92.64-92.97% and an increase in LNG production of 5.77-7.04%. Moreover, applying liquid expanders at the determined optimum cases for the different cycles, improves process performance and shows a plant power saving of 5.80%, plant thermal efficiency of 92.81% and an increase in LNG production of 7.0%. (C) 2016 Elsevier Ltd. All rights reserved.
机译：这项研究旨在通过用膨胀机替代焦耳-汤姆森（JT）阀门来提高用于生产液化天然气（LNG）的开放式菲利普斯优化级联工艺的性能。膨胀器的热力学效率高于JT阀。此外，由膨胀机产生的轴动力被集成到过程中。该研究是使用Aspen HYSYS-V7仿真软件进行的，该软件用于模拟具有JT阀的开放式菲利普斯优化级联过程。对几种建议的情况进行了模拟，其中在丙烷循环，乙烯循环，甲烷循环和重油去除塔的上游，在过程中的不同位置使用膨胀器代替JT阀。最佳情况清楚地表明，膨胀机不仅可以发电，而且还可以显着改善过程性能，如工厂总能耗，液化天然气产量，热效率，工厂特定功率和二氧化碳排放量减少所示。结果还表明，在甲烷循环中用膨胀机代替JT阀对所有性能标准都有主要影响，因此，可以认为是影响菲利普斯优化级联工艺的主要关键因素，从而显着提高了效率。在甲烷循环的不同位置用液体膨胀器替换JT阀可节省4.92-5.72％的功率，工厂的热效率为92.64-92.97％，LNG产量增加5.77-7.04％。此外，在确定的最佳情况下针对不同的循环使用液体膨胀剂，可改善过程性能，并显示出5.80％的工厂节电，92.81％的工厂热效率以及LNG产量增加7.0％。 （C）2016 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号