Abstract
In this paper, various configurations of vapor recompression and bottom flashing systems were developed. The systems were developed based on direct sequence, indirect sequence, Petlyuk and side stripper designs. This research was performed with three main aims. First aim was to investigate possibility of enhancing energy and economic performance of complex three-product distillation systems via implementation of vapor recompression and bottom flashing. Second aim was to shed light on differences in potentials of vapor recompression and bottom flashing systems in energy and costs savings of three-product distillation schemes. Third aim was to name the best configuration of three-product separation schemes from economic and energy points of view. Twelve configurations were designed. Energy and costs requirements of each configuration were evaluated and compared to each other. Based on the presented results, implementation of vapor recompression and bottom flashing systems can lead to better economic performance of complex three-product distillation systems. In case study presented in this work, application of vapor recompression and bottom flashing enhanced performance of direct sequence, indirect sequence, Petlyuk and side stripper designs. Equivalent work requirements of base direct sequence separation system was 5.59 MW. Based on the obtained results, considering energy requirements, Side stripper and Petlyuk arrangements are the best options for separation of the three-product system with equivalent work savings of 27.6 and 23.5%, respectively. Considering equivalent mechanical work of the systems, the highest savings was obtained in Side stripper with VRC heat pump (71.3% saving). It is shown that the most economically attractive configuration is Petlyuk with bottom flashing with total annual costs (TAC) saving of 43.4% (compared to 9.58 mUSD/year TAC of the base case), while the best performances of vapor recompression systems were obtained on Petlyuk and side stripper designs with TAC savings of 37.4 and 31.0%, respectively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.