?????????????????????????????

天然气膜法脱水工艺技术是近年来发展起来的高新技术，该技术使膜分离技术和固体催化转化技术相结合，既克服了传统工艺脱水的不足，又使集成工艺的优势得以充分发挥。其中天然气膜法脱水工艺技术是天然气“净化”的重要核心内容之一。它利用气体不同组分通过薄膜时的速率分异现象将天然气中的饱和水蒸气除去，从而降低天然气水露点，以达到天然气管输要求。并介绍了天然气膜法脱水的工艺流程，该工艺通过在长庆气田的工业性试验，取得了技术上的成功，与常规的三甘醇脱水工艺相比，具有明显的优越性。

A DISCUSSION ON THE MEMBRANE PROCESS DEHYDRATION TECHNOLOGY OF NATURAL GAS IN CHANGQING GAS FIELD

The membrane process dehydration technology for natural gas is a high and new technology developed in recent years,which combines membrane separation technology with solid catalytic conversion technology,overcoming the insufficiency of dehydration by traditional technology as well as giving full play to the superiority of the integrated technology.The membrane process dehydration of natural gas is one of the important contents of gas purification,in which,the suturated steam in gas is removed by taking advantage of the speed differentiation of different gas components passing through the membrane,thus the dew point of the water in gas is cut down to meet the requirements of pipeline transportation.The technological process of membrane process dehydration of natural gas is presented,which is successful technically through the industrial scale test in Changqing gas field and is of an obvious superiority as compared with traditional triethylene glycol dehydration technology.