FLNG液化工艺系统放大效应及应用研究

发布时间：2018-01-11 09:24

本文关键词：FLNG液化工艺系统放大效应及应用研究　出处：《天然气化工(C1化学与化工)》2017年03期 　论文类型：期刊论文

【摘要】：海上天然气液化工艺技术是LNG-FPSO的主要研究内容。以丙烷预冷双氮膨胀液化工艺的小试试验装置和中试试验装置为依托,建立了相应的小试、中试液化工艺模型。首先通过比较试验结果和模拟结果验证了模型的准确性,然后通过HYSYS软件数值模拟分析了两种规模原料气参数的变化对液化工艺系统的影响。鉴于小试、中试液化流程,设备选型,以及原料气参数的不完全相同会影响工艺放大效应的准确分析,通过对小试和中试装置的试验研究以及小试、中试及目标气田的液化工艺的模拟研究,提出净比功耗的概念。研究结果表明,净比功耗能够有效的反映工艺系统随装置规模放大过程的性能变化。随着液化规模的增大,净比功耗逐渐降低,工艺适应性更强,明确了丙烷预冷双氮膨胀液化工艺的可行性。在数值模拟基础上,采用净比功耗计算方法可以对不同规模液化流程的净比功耗进行预测,为目标气田的投产和运营提供参考。
[Abstract]:Offshore natural gas liquefaction technology is the main research content of LNG-FPSO. Based on the pilot test equipment and pilot test equipment of propane precooled diazo expansion liquefaction process, the corresponding small scale test was established. The veracity of the model is verified by comparing the experimental results with the simulation results. Then the influence of the change of the parameters of two kinds of raw gas on the liquefaction process system is analyzed by HYSYS software. In view of the small scale test, the pilot liquefaction process, the equipment selection. Different parameters of raw gas will affect the accurate analysis of process amplification effect. Through the experimental study of small scale test and pilot plant as well as the simulation study of small scale test pilot test and target gas field liquefaction process. The concept of net specific power consumption is proposed. The results show that the net specific power consumption can effectively reflect the performance changes of the process system with the device scale amplification process. With the increase of the liquefaction scale, the net specific power consumption decreases gradually. On the basis of numerical simulation, the net specific power consumption calculation method can be used to predict the net specific power consumption of different scale liquefaction processes. It provides a reference for the production and operation of the target gas field.
【作者单位】：中国石油大学(华东)储运与建筑工程学院山东省油气储运安全省级重点实验室青岛市环海油气储运技术重点实验室;
【基金】：中央高校基本科研业务费专项资金资助(14CX02207A) 国家自然基金(51504278) 山东省优秀中青年科学家科研奖励基金(BS2014ZZ009) 青岛市应用基础研究计划项目(14-2-4-81-jch)
【分类号】：TE646
【正文快照】： 浮式液化天然气(FLNG)装置是近年来海洋工程界提出的,集海上天然气/石油气的液化、储存、装卸和外运为一体的新型FPSO装置,适用于深水气田开发[1,2]。加速在此方面的研究,有利于缩小我国在海洋资源开发技术上与世界的差距,为我国自主研制FLNG装备提供技术支持。我国于2003年开

【参考文献】