Development of algorithms for the numerical modeling of heat exchange processes in a rectification column for the regeneration of diethylene glycol
A significant place in the Russian economy takes gas industry. In this regard, great attention is paid to technology of production, treatment and transportation of natural gas. To prevent wear of the infield, inter-field pipelines and transportation of natural gas needs to be prepared in accordance with the STO Gazprom 089-2010. There are three basic methods of preparation of natural gas to gas and gas condensate fields: - absorption drying and purification of natural gas, ie, extracting gas from the liquid hydrocarbon stream with liquid water and sinks (oils, glycols); - adsorption drying and purification of natural gas, ie, extracting liquid hydrocarbons from the stream of gas and water sinks solid (sand, iron oxides, etc.); - low-temperature separation (NTS) of natural gas, ie, cooling the natural gas condensate mixture, followed by separation in a separator into liquid and gas phases. Note that the processes of absorption drying gas is widely used in the West Siberian fields of Russia. This process is closed by the liquid phase (the absorbent). In this paper, we investigate the regeneration of the absorbent. This is an important process in the system of preparation of natural gas as an absorbent in the gas fields is used repeatedly and challenge the regeneration process is the restoration of the absorbent to the initial conditions. Currently, research for regeneration of the absorbent used mainly static model. But to describe the dynamics of the process needed to develop a mathematical model of the processes in differential equations with partial derivatives. It follows from the above that the main objective of this work is to construct an adequate mathematical models of processes. This required repeated simulation test cases mathematical models using computer tools. However, as shown in this study, to date there is no available computing resources with the required flexibility, speed and multi-tasking.