我国LNG工厂的生产流程介绍  

WORK FLOW OF LNG PLANTS IN CHINA

作　　者：曹文胜[1] 鲁雪生[1] 顾安忠[1] 石玉美[1] 汪荣顺[1] 

机构地区：[1]上海交通大学制冷与低温工程研究所

出　　处：《天然气工业》2005年第5期100-102,121,共4页Natural Gas Industry

基　　金：福建省自然科学基金计划资助项目(项目编号:E0440002)。~~

摘　　要：介绍了我国的LNG示范装置、调峰型工厂和基本负荷型工厂的状况,包括这些装置和工厂的生产规模和工艺流程。这些流程包括:级联式、混合制冷剂、带膨胀机的液化流程制冷,并比较了各自的使用特点和优劣。最后指出了我国LNG工厂的发展方向:根据国情,依据具体的设计条件和外围条件,对不同液化流程的投资成本、比功耗、运行要求进行全面的对比分析;要紧跟当前天然气液化流程追求简便、高效的发展趋势,综合考虑各种液化流程的技术特点,开发适合我国实际情况的新型液化流程———流程精简、设备少,冷箱结构紧凑,换热效率高,火用损小,压缩机和驱动机高效、可靠,应大力发展具有调峰、机动能力的中、小型LNG装置,以适应我国已经面临大规模开发利用天然气的新形势。The modeling plant, the peak-cutting plant and the basic loading plant of LNG in China are introduced including their production scales and process flows. The flows cover the cascade refrigeration, the mixed-refrigerate refrigeration, and the refrigeration with expander. The operating features, advantages and disadvantages of the flows are compared. At the end, the development direction of LNG plants is pointed out in China. According to the real situation of China, the concrete design conditions and peripheral conditions, the investing cost, the specific power consumption and the running requirements of the different flows are analyzed thoroughly. Following the development trend of the current gas liquefaction flows to seek simplification and high efficiency, the technical features of the different flows should be considered comprehensively to develop new gas liquefaction flows suitable to the real situation in China. The flow should be simple, the equipment less, the structure of the refrigeration case tight, the heat-exchanging efficiency high, the enthalpy loss less, the compressor and driving machine efficient and reliable. The meddle and small LNG plants with peak-cutting and moveable ability should be developed largely to meet the new situation facing in China to produce and utilize natural gas with a large scale.

关 键 词：工厂 生产流程 液化流程 混合制冷剂 LNG装置 示范装置 基本负荷 工艺流程 生产规模 发展方向 设计条件 投资成本 对比分析 发展趋势 结构紧凑 换热效率 机动能力 开发利用 天然气 膨胀机 驱动机 压缩机 调峰 特点 高效 

分 类 号：TE646[石油与天然气工程—油气加工工程]