Modification of an absorption column when using solution heat during a heat integration process system

This article discusses the use of solution heat in absorption, integrating absorption with distillation, and improving the distillation column, so that steam is unnecessary for heating the reboiler. This method of absorber modification is based on the use of solution heat. It is composed of two steps: • First step - Analysing the existing heat integration of the process • Second step - Modification of the absorption column, by usefully utilizing solution heat during the process. This analysis of solution heat in an absorber requires profitable integration during the process, and energy efficiency. The technique is based on the pinch-analysis method by using a grand-composite curve. Pinch analysis does not guarantee a global optimum solution, but it quickly proposes good ideas for heat integration during the process.