摘要
为了研究管道运输(PNG)、LNG公路罐车及CNG公路罐车3种天然气运输方式的经济适用范围,分别对其进行了成本分析,建立了单位体积天然气运输成本的经验公式。基于经验公式,对3种运输方式的单位输气成本进行了比较,得到不同运输方式的经济运输临界曲线,直观地反映了不同运输距离和运输规模下最经济的运输方式:CNG公路罐车运输适用于小规模、短距离的天然气输送,最大输气量为16×104 m3/d,最大运输距离约为300 km;当运输距离超过236 km时,LNG公路罐车运输的经济性才可能优于CNG和PNG;PNG的规模效应最明显,单位体积输气成本随运输规模增大而下降最快。
To determine economical applicability of pipeline transportation（PNG）, LNG road tanker and CNG road tanker for natural gas transportation, cost analysis are performed for these three modes and empirical equation for transportation cost of natural gas per unit volume is established. Based on the empirical equation, unit costs for the three transportation modes are reviewed to obtain critical curves for economical transportation of these modes. These curves reflect the most economical transportation mode under different distances and scales directly, i.e., 1CNG road tanker is more suitable for transportations with minor scales and short distances, with maximum capacity of 16×104 m3/d and maximum distance of approximately 300 km, 2only for transportation distances over 236 km, LNG road tanker has economical performance superior than those of CNG and PNG, 3PNG road tanker has the most evident scale effect with the fast reduction in transportation cost per unit volume with the scale of transportation.
出处
《油气储运》
CAS
北大核心
2015年第7期709-713,共5页
Oil & Gas Storage and Transportation
关键词
管道运输(PNG)
LNG
CNG
罐车运输
临界曲线
经济运输范围
pipeline transportation（PNG）
LNG
CNG
road tanker transportation
critical curve
extent of economical transportation
