天然气汽车燃料加注的几个问题

在天然气汽车(NGVs)的市场推广过程中，以加气站为主的基础设施的建设是关系到天然气汽车发展的关键环节之一。文章讨论了一些会对天然气加气站的运行造成影响的问题，包括天然气的预处理问题、充气系统充气间歇问题以及高压充气时可能出现的不良节流效应和它们的处理方法。同时从投资与运营角度，对我国不同地区的天然气资源及其所需工艺、不同的加气站类型及其适用对象，进行了综合分析。

Some Problems Concerning the Refueling of the Natural Gas Vehicles

During the marketing promotion process of Natural Gas Vehicles (NGVs), the infrastructures, especially the refueling Station, are among the key problems. In this paper, some problems that may cast adverse influence on the proper work of the refueling station, including natural gas pretreatment, gas dischargeing during refueling interval, and the Joule|Thomson effect of the high|pressure charging will be discussed and countermeasures will be provided. Meanwhile, the analysis between the natural gas resources at different places in China along with their appropriate pretreatment and between different refueling models along with their aimed vehicles fleets are presented from the respects of investment and running.