الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
 |  | from | 140 |  |  |
| | | from | 140 | | |
Abstract
Natural gas is considered one of the highest essential energy carriers through its molecular composition comes with saturated water vapor. This water should be removed by means of an efficient dehydration process. The main objective of dehydration is to avoid pipeline gradual plugging by hydrate formation, also to prevent the liquid slugs formation, to prevent condensation water risk in pipeline and to maximize the efficiency of the pipeline. In gas dehydration, one of the most effective choices is the use of molecular sieves as a solid desiccant. A dynamic mathematical model was developed for simulating natural gas dehydration by an adsorption process. In this study, the fixed bed having molecular sieves 3A has two layers with different sizes. The upper particle diameter is 3.2 mm whereas the lowest particle diameter is 1.6 mm and the gas directions is from the top to downwards. The dynamic model was developed to follow up the breakthrough behavior at different operating conditions as temperature, volumetric flow rate, water content, bed height, mass transfer zone, and bed diameter. The outcome of this dynamic simulation was compared with actual figures from a Natural Gas Company in Egypt (Port Said NGL Plant). The calculated values show good agreement with the data of the plant.