| 摘要: |
| 目前国内大多建成的LNG接收站采用PSA制氮与液氮气化相结合的方案供氮,满足接收站日常用氮量少,卸船时用氮量大的生产需求。以广东大鹏LNG接收站为例,对购买液氮气化辅助PSA制氮系统和液氮气化系统单独供氮两种供氮方案的运行成本进行比较,并通过用氮量的分析来探讨液氮气化系统单独供氮方案的可行性。实践表明,在PSA制氮系统产能低的情况下,采用液氮气化系统单独供氮方案更有优势。 |
| 关键词: LNG接收站 供氮方案 液氮气化 PSA制氮 运行成本 |
| DOI：10.3969/j.issn.1007-3426.2020.01.010 |
| 分类号: |
| 基金项目:广东省非常规能源工程技术研究中心开放项目“面向天然气水合物的宽频地震研究”(GF2018B010)；广东石油化工学院科研基金项目“南海古近系典型盆地地震相研究”(2018rc07) |
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| Analysis of nitrogen supply scheme for LNG receiving station —Taking Guangdong Dapeng LNG receiving station as an example |
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Wang Peijin1, Wu Qilin2,3, Chen Miaolan3, Chen Changxiong1, Wang Youlin1, Zhang Yuqiang1
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1. Guangdong Dapeng LNG Company, Ltd., Shenzhen, China;2. Guangdong Research Center of Engineering & Technology for Unconventional Energy, Maoming, Guangdong, China;3. College of Petroleum Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, China
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| Abstract: |
| At present, most of the LNG receiving stations built in China use the combination of PSA nitrogen and liquid nitrogen to supply nitrogen, which meets less demand for the daily use and the large demand for unloading in the receiving station. Taking Guangdong Dapeng LNG receiving station as an example, the operating cost of purchasing liquid nitrogen to assist the PSA nitrogen production system and liquid nitrogen gasification system for nitrogen supply alone is compared, and the scheme feasibility of liquid nitrogen gasification system for nitrogen supply alone is discussed by analyzing the amount of nitrogen demand. Results of practices show that in the case of low production capacity of PSA nitrogen production system, the use of liquid nitrogen gasification system alone has more advantages. |
| Key words: LNG receiving station nitrogen supply scheme liquid nitrogen gasification PSA nitrogen production operating cost |
