(398au) Energy Integrated Natural Gas Liquid Recovery Process By Vapor Recompressed Internally Driven Reboiler

Processing of Natural gas liquid (NGL) recovery is a complex industrial process designed to clean the raw natural gas by separating the impurities and various non-methane hydrocarbons, which are value added chemicals need to separate out to fulfil the dry natural gas as pipeline quality according to the end users requirement for their process needs. Usually, NGL recovery has to be carried out at an offshore plant location, where the space and sources of energy are limited; which plays a vital role in the process economics. In this study, explored different energy integrated configurations to improve the energy efficiency and economics of the NGL recovery from natural gas. Simulated the NGL recovery from pre-treated Natura gas by considering a propane C3MR cycle as a refrigerant cycle, separated the propane, LPG and C5+ from natural gas in two column distillation unit sequence in Aspen Hysys environment and considered this case study as a base case to analyze the economics and energy efficiency of the different explored energy integrated configuration for NGL recovery. Analysed the different energy integrated schemes to enhance the energy efficiency of the NGL recovery with compared to the conventional NGL recovery. Performed the economic and energy analysis to select the better scheme for NGL recovery than conventional approach. Vapour recompressed internally driven Reboiler in petlyuk column configuration shows better performance than conventional sequence.