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LNG、L-CNG、CNG加气站的比较

LNG、L-CNG、CNG加气站的比较

LNG、L-CNG、CNG加气站的比较

2008-3-5

摘要:天然气加气站有LNG、CNG和L-CNG三种模式,其工艺流程及所需设备不同。比较了3种加气站设备、造价、运行费用以及安全性。LNG加气站在造价和安全性方面优于CNG加气站,而L-CNG加气站介于两者之间。对于加气规模为10000 m/d的加气站,只有当LNG加气站的天然气进站价格比CNG加气站高出约0.151 元/m3时,其年总运行费用才会高于CNG加气站。建议在条件允许的情况下,优先考虑建设LNG加气站。

关键词:液化天然气;压缩天然气;加气站;经济性;簧全 Comparison among LNG,CNG and L-CNG Filling Stations CHEN Shu-ping1,XIE Gao-feng1,LI Qiu-ying2,CHANG Kunl

(1.College Petrochemical Technology,Lanzhou University of Technology,Lanzhou 730050,China;2.College of Energy and Power Engineering,Jiangsu University,Zhenjiang 212013,China)

Abstract:There are three modes with different technological processes and equipment,including LNG,CNG and L-CNG,in natural gas filling stations. The equipment,construction cost,operation cost and safety of the three kinds of gas filling stations are compared. LNG filling station is superior to CNG filling station in construction cost and safety,and L-CNG filling station is one between the both. Under the condition of gas filling capacity of 10000 m3/d,the annual total operation cost of LNG filling station is higher than that of CNG filling station only if the purchasing price of LNG is higher than that of CNG by 0.151 yuan/m. It is suggested that LNG filling station should be set up first under permissible conditions.

Key words:LNG;CNG;gas filling station;economy;safety 1 加气站设备和造价 ①LNG加气站[1~4]

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