Title:
A Novel Cost Management Strategy for SELEXOL Syngas Purification Process
Author(s):
Bashiri, H., Ashrafi, O., Esmaeili, A., Sapoundjiev, H., Navarri, P.
Document(s):
Paper
Poster
Abstract:
Gas cleaning represents a formidable challenge to successful implementation of syngas conversion processes, as it often suffers from high capital and operating costs. In this work, we introduce a novel approach to reduce the capital and operating costs of the widely-used SelexolTM syngas purification process by optimal integration of ejector technology. In this study, the ejector is integrated into the solvent regeneration and CO2 compression system section of a typical dual-stage SelexolTM process to either unload or eliminate compressors used in the prior design. A detailed simulation model of the process has been developed using Aspen HYSYS® in order to find an optimal strategy for integrating ejector technology into this process, and to assess the benefits of the novel design configuration from economic, energy and environmental perspectives. Moreover, we developed a predictive thermodynamic design model, validated over a wide range of operating conditions, and scales to simulate ejector performance. We found that through optimal integration of ejector technology into the SelexolTM gas purification process, the capital and operating costs of the combined solvent regeneration and CO2 compression system can be reduced by 20% and 3%, respectively.
Keywords:
gas cleaning, gasification, syngas, ejector technology
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Gasification for synthesis gas production
Event:
26th European Biomass Conference and Exhibition
Session:
2CV.4.9
Pages:
741 - 747
ISBN:
978-88-89407-18-9
Paper DOI:
10.5071/26thEUBCE2018-2CV.4.9
Price:
FREE
