来源：《石化技术》2015年第07期 作者：王黎明;胡秀;
Source: "Petrochemical Technology" in 2015, the seventh Author: Wang Liming;
天然气脱水研究背景目前国内外油气田普遍应用的传统天然气脱水技术,包括溶剂吸收法、固体吸附法、冷冻分离法。天然气脱水的实质就是使天然气从饱和状态变为不被水饱和状态。传统的天然气脱水方法,可以分为溶剂吸收法、固体吸附法、冷冻分离法和化学反应法等,其中溶剂吸收法和固体吸附法应用极为广泛[1]。2天然气脱水的主要方法由于不同油藏的地质特征不同,归纳总结天然气脱水主要方法如下:(1)低温冷凝脱水。(2)J-T阀和透平膨胀机。(3)分子筛脱水。(4)超音速脱水。(5)膜分离脱水技术。(6)冷冻分离法。3三甘醇脱水设备及流程3.1三甘醇脱水设备(1)过滤分离器;(2)吸收塔;(3)甘醇贫富换热器;(4)闪蒸分离器;(5)三甘醇过滤器;(6)三甘醇再生器;(7)重废器及再生塔;(8)甘醇泵。3.2三甘醇脱水流程针对天然气三甘醇脱水装置,就理论、工艺和操作等方面进行了深入的研究,下面对工艺流程进行简述。含液态流体的天然气在经历常规的机械分离后,天然气经由吸收塔底部进入脱水装置,与从吸收塔顶部逆流的三甘醇贫液进行接触,三甘醇溶液将天然气中的水分吸收,当温度达到预先设计露点后,从吸收塔顶部流出,经过换热器
The background of the research of natural gas dehydration is the traditional natural gas dehydration technology, which is widely used in domestic and international oil and gas fields. The essence of natural gas dehydration is to make the natural gas from the saturated state to be not saturated with water. The conventional natural gas dehydration method can be divided into solvent absorption method, solid adsorption method, frozen separation method and chemical reaction method, in which the solvent absorption method and solid adsorption method is widely used in [1]. 2 the main methods of natural gas dehydration are summarized as follows: (1) low temperature condensation dehydration. (2) J-T valve and turbine expander. (3) molecular sieve dehydration. (4) supersonic dehydration. (5) membrane separation dehydration technology. (6) freeze separation method. Three Gan alcohol dehydration equipment and process 3.1 Gan alcohol dehydration equipment (1) filter separator; (2) absorption tower; (3) glycol wealth for heat exchanger; (4) flash separator; (5) the TEG filter; (6) the TEG regenerator; (7) heavy waste and regeneration tower; (8) glycol pump. Three three glycol dehydration process for natural gas 3.2 glycol dehydration unit, on the theory, technology and operation, etc.. Natural gas containing liquid fluid after a conventional mechanical separation, natural gas through the bottom of the absorption tower into the dehydration unit, and from the top of the absorption tower of three glycol liquid to contact, three glycol solution will be natural gas water absorption, when the temperature reaches the top of the tower, from the top of the absorption tower, after heat exchanger