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Estimation of the water content of natural gas dried by solid calcium chloride dehydrator units

机译：固体氯化钙脱水机干燥天然气的含水量估算

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摘要

Natural gas is an important source of energy. It is efficient, versatile and abundantly available. Calcium chloride (CaCl_2) dehydrator is the most common non-regenerative adsorption system in natural gas industry. As the need for natural gas increases, calcium chloride dehydration can help to make some gas wells more profitable to operate gas from remote or offshore wellheads, gas of a low flow rate, or gas which is high in sulphur content may benefit from this dehydration. In this article two mathematical-based models are developed to estimate approximate water content of natural gas dried by calcium chloride dehydrator units for both freshly recharged and just prior to recharging conditions as a function of temperature and pressure. Firstly, a simple empirical correlation is presented to estimate water content of natural gas dried by solid calcium chloride dehydrator, Secondly, a multilayer perceptron (MLP) neural network is developed for the same calculations. The results of both presented models are found to be in excellent agreement with reported data in the literature. The tools developed in this study can be of immense practical value for engineers to have a quick check on water content of natural gas dried by calcium chloride dehydrator units as a function of dehydrator temperature and pressure at various conditions without opting for any experimental trials. In particular, engineers would find the approaches to be user-friendly with transparent calculations involving no complex expressions.
机译：天然气是重要的能源。它是高效，多功能和丰富可用的。氯化钙（CaCl_2）脱水器是天然气工业中最常见的非再生吸附系统。随着对天然气的需求增加，氯化钙脱水可以帮助使一些气井更有利于操作来自偏远或近海井口的天然气，低流速的气体或硫含量高的气体，从而受益。在本文中，开发了两个基于数学的模型来估计新鲜补给的和即将补给的条件下氯化钙脱水器干燥的天然气的近似水含量，该温度是温度和压力的函数。首先，提出了一种简单的经验相关性来估算固体氯化钙脱水器干燥的天然气的水含量；其次，针对相同的计算，开发了多层感知器（MLP）神经网络。发现两个模型的结果与文献报道的数据都非常吻合。这项研究中开发的工具对于工程师而言，在不同条件下快速检查由氯化钙脱水器干燥的天然气的水分含量与脱水器温度和压力之间的函数关系具有巨大的实用价值，而无需进行任何实验性试验。尤其是，工程师会发现这些方法对用户友好，并且透明计算不涉及复杂的表达式。

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